- JavaDoc für SciPublications, SciPublicationsExporter und BibTeX Exporter (noch nicht komplett)

- RIS Exporter


git-svn-id: https://svn.libreccm.org/ccm/trunk@736 8810af33-2d31-482b-a856-94f89814c4df

ccm-sci-publications/src/META-INF/services/com.arsdigita.cms.scipublications.exporter.SciPublicationsExporter

@@ -1 +1,2 @@
  com.arsdigita.cms.scipublications.exporter.bibtex.BibTeXExporter
+ com.arsdigita.cms.scipublications.exporter.ris.RisExporter

ccm-sci-publications/src/META-INF/services/com.arsdigita.cms.scipublications.exporter.ris.RisConverter

@@ -0,0 +1,13 @@
+com.arsdigita.cms.scipublications.exporter.ris.ArticleInCollectedVolumeConverter
+com.arsdigita.cms.scipublications.exporter.ris.ArticleInJournalConverter
+com.arsdigita.cms.scipublications.exporter.ris.CollectedVolumeConverter
+com.arsdigita.cms.scipublications.exporter.ris.ExpertiseConverter
+com.arsdigita.cms.scipublications.exporter.ris.GreyLiteratureConverter
+com.arsdigita.cms.scipublications.exporter.ris.InProceedingsConverter
+com.arsdigita.cms.scipublications.exporter.ris.InternetArticleConverter
+com.arsdigita.cms.scipublications.exporter.ris.MonographConverter
+com.arsdigita.cms.scipublications.exporter.ris.ProceedingsConverter
+com.arsdigita.cms.scipublications.exporter.ris.PublicationConverter
+com.arsdigita.cms.scipublications.exporter.ris.PublicationWithPublisherConverter
+com.arsdigita.cms.scipublications.exporter.ris.ReviewConverter
+com.arsdigita.cms.scipublications.exporter.ris.WorkingPaperConverter

ccm-sci-publications/src/com/arsdigita/cms/scipublications/SciPublications.java

@@ -1,3 +1,22 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications;
 
 import com.arsdigita.domain.DataObjectNotFoundException;
@@ -7,12 +26,19 @@ import com.arsdigita.web.Application;
 import java.math.BigDecimal;
 
 /**
+ * This application provides the main entry point for all functions of
+ * the SciPublications module. The application will be mounted at
+ * <code>/ccm/scipubliations/</code>. The functions are accessed using
+ * an additional URL fragment. For example, if you want to access the 
+ * export function, you will use the URL 
+ * <code>/ccm/scipublications/export/</code>.
  *
  * @author Jens Pelzetter
  */
 public class SciPublications extends Application {
 
-    public static final String BASE_DATA_OBJECT_TYPE = "com.arsdigita.cms.scipublications.SciPublications";
+    public static final String BASE_DATA_OBJECT_TYPE =
+                               "com.arsdigita.cms.scipublications.SciPublications";
 
     public SciPublications(DataObject dobj) {
         super(dobj);
@@ -30,5 +56,4 @@ public class SciPublications extends Application {
     public String getServletPath() {
         return "/scipublications/";
     }
-
 }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/SciPublicationsLoader.java

@@ -49,6 +49,7 @@ public class SciPublicationsLoader extends PackageLoader {
                 ApplicationType type = setup.run();
                 type.save();
 
+                //Install the application and mount the app at 'scipublications'.
                 if (!Application.isInstalled(
                         SciPublications.BASE_DATA_OBJECT_TYPE, "/scipublications/")) {
                     Application app = Application.createApplication(type,

ccm-sci-publications/src/com/arsdigita/cms/scipublications/SciPublicationsServlet.java

@@ -1,6 +1,24 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications;
 
-import com.arsdigita.categorization.Categorization;
 import com.arsdigita.categorization.CategorizedCollection;
 import com.arsdigita.categorization.Category;
 import com.arsdigita.cms.ContentBundle;
@@ -24,6 +42,43 @@ import javax.servlet.http.HttpServletResponse;
 import org.apache.log4j.Logger;
 
 /**
+ * <p>
+ * The <code>SciPublicationsServlet</code> processes the 
+ * {@link HttpServletRequest} and calls the requested actions. 
+ * The available actions are:
+ * </p>
+ * <dl>
+ * <dt><code>export</code></dt>
+ * <dd>
+ * <p>
+ * The <code>export</code> action exports content items of the type
+ * {@link Publication} in several formats, like <em>BibTeX</em> or <em>RIS</em>.
+ * The export action has the following query parameters:
+ * </p>
+ * <dl>
+ * <dt><code>format</code></dt>
+ * <dd>Specifies the format which is used to export the publications.</dd>
+ * <dt><code>publication</code></dt>
+ * <dd>Specifies the publication(s) to export using the ID(s) of the 
+ * publications. 
+ * This parameter can occur more
+ * than one time. In this case, all publications specified by the parameters
+ * will be exported as a single file in specified format</dd>
+ * <dt><code>category</code></dt>
+ * <dd>Specifies a category using the OID of the category. If this
+ * parameter is present, all publications in the category and the subcategories
+ * of the category will exported as a single file in the specified format.</dd>
+ * </dl>
+ * <p>
+ * The <code>format</code> argument is mandatory. Also their must be either one
+ * or more <code>publication</code> parameters or a <code>category</code>
+ * parameter. If the URL is not valid, the Servlet will respond with the
+ * BAD_REQUEST (400) HTTP status code. If one of the specified publications or
+ * the specified category can't be found, the Servlet will respond with the
+ * NOT_FOUND (404) HTTP status code.
+ * </p>
+ * </dd>
+ * </dl>
  *
  * @author Jens Pelzetter
  */
@@ -64,12 +119,9 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
 
         logger.debug(String.format("path = %s", path));
 
+        //Displays a text/plain page with a message.
         if (path.isEmpty()) {
             logger.debug("pathInfo is null, responding with default...");
-            /*response.setContentType("application/text");
-            response.setHeader("Content-Disposition",
-            "attachment; filename=ccm-publication-exporter.txt");
-            response.getWriter().append("This is the sci-publication-exporter");*/
 
             response.setContentType("text/plain");
             response.getWriter().append("Please choose an application.");
@@ -83,6 +135,7 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
 
             parameters = request.getParameterMap();
 
+            //Get the format parameter
             if (parameters.containsKey("format")) {
                 if (parameters.get("format").length == 1) {
                     format = parameters.get("format")[0];
@@ -105,6 +158,9 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
             }
 
             if (parameters.containsKey("category")) {
+                /* If the category parameter is present, retrieve the
+                 * specified category and exports all publications in it.
+                 */
                 Publication publication;
                 SciPublicationsExporter exporter;
                 String categoryIdStr;
@@ -151,6 +207,7 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
 
                 logger.debug(String.format("Category: %s", category.getName()));
 
+                //Get the exporter for the specified format.
                 exporter = SciPublicationsExporters.getInstance().
                         getExporterForFormat(
                         format);
@@ -165,6 +222,7 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
                     return;
                 }
 
+                //Get the category.
                 objects = category.getObjects(ACSObject.BASE_DATA_OBJECT_TYPE);
                 logger.debug(String.format("Category contains %d objects.",
                                            objects.size()));
@@ -172,9 +230,12 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
                 ACSObject object;
                 while (objects.next()) {
 
+                    //Get the bundle
                     bundle = (ContentBundle) objects.getACSObject();
+                    //Get the default instance of the bundle
                     object = bundle.getInstance(bundle.getDefaultLanguage());
 
+                    //Ignore object if it is not an publication
                     if (object instanceof Publication) {
                         publication = (Publication) object;
                     } else {
@@ -182,22 +243,30 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
                         continue;
                     }
 
+                    //Ignore none live versions.
                     if (!publication.isLiveVersion()) {
                         logger.debug("Object is no a published version, "
                                      + "ignoring it.");
                         continue;
                     }
 
+                    //Write the exported publication to the response.
                     response.getWriter().append(exporter.exportPublication(
                             publication));
-                    response.getWriter().append('\n');
+                    //response.getWriter().append('\n');
                 }
 
+                //Set the MimeType of the response
                 response.setContentType(exporter.getSupportedFormat().
                         getMimeType().getBaseType());
+                //Force the browser to display an download dialog, and set
+                //the filename for the downloaded file to the name of the
+                //selected category.
                 response.setHeader("Content-Disposition",
-                                   String.format("attachment; filename=%s.bib",
+                                   String.format("attachment; filename=%s.%s",
-                                                 category.getName()));
+                                                 category.getName(),
+                                                 exporter.getSupportedFormat().
+                        getFileExtension()));
 
                 return;
             } else if (parameters.containsKey("publication")) {
@@ -215,6 +284,8 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
                     return;
                 }
 
+                //Retrieve the ids of the publication(s) to export from the
+                //request.
                 BigDecimal publicationId;
                 publicationIds = new ArrayList<BigDecimal>();
                 for (int i = 0; i < publications.length; i++) {
@@ -234,6 +305,7 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
                     publicationIds.add(publicationId);
                 }
 
+                //Export the publictions.
                 exportPublications(format, publicationIds, response);
 
             } else {
@@ -247,6 +319,7 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
             }
 
         } else {
+            //Respond with 404 when the requested action is unknown.
             logger.warn(String.format("Unknown pathinfo '%s', "
                                       + "responding with 404...",
                                       path));
@@ -255,12 +328,21 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
         }
     }
 
+    /**
+     * Helper method for exporting publications specified by a list of IDs.
+     *
+     * @param format The format to use.
+     * @param publicationIds The IDs of the publications to export
+     * @param response The {@link HttpServletResponse} to use
+     * @throws IOException Thrown by some methods called by this method.
+     */
     private void exportPublications(final String format,
                                     final List<BigDecimal> publicationIds,
                                     final HttpServletResponse response)
             throws IOException {
         SciPublicationsExporter exporter;
 
+        //Get the exporter for the specified format.
         exporter = SciPublicationsExporters.getInstance().getExporterForFormat(
                 format);
 
@@ -276,26 +358,24 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
 
 
             return;
-
-
         }
 
+        //Set the MimeType type of the response.
         response.setContentType(exporter.getSupportedFormat().getMimeType().
                 getBaseType());
 
         Publication publication = null;
         String publicationName = "publication";
 
-
         for (BigDecimal publicationId : publicationIds) {
             try {
+                //Get  the publication
                 publication = new Publication(publicationId);
                 logger.debug(String.format("OID of publication: %s",
                                            publication.getOID()));
+                //Specialize the publication
                 publication = (Publication) DomainObjectFactory.newInstance(publication.
                         getOID());
-
-
             } catch (DataObjectNotFoundException ex) {
                 logger.warn(String.format("No publication found for id '%s'.",
                                           publicationId.toPlainString()), ex);
@@ -310,23 +390,31 @@ public class SciPublicationsServlet extends BaseApplicationServlet {
             logger.debug(String.format("Publication is of type: %s",
                                        publication.getClass().getName()));
 
+            //Write the exported publication data to the response.
             response.getWriter().append(exporter.exportPublication(publication));
-            response.getWriter().append('\n');
+            //response.getWriter().append('\n');
             publicationName = publication.getName();
 
 
         }
 
-
+        //Force the browser to show a download dialog.
         if (publicationIds.size() == 1) {
+            //If only one publication is exported, use the name (URL) of the
+            //publication as filename.
             response.setHeader("Content-Disposition",
-                               String.format("attachment; filename=%s.bib",
+                               String.format("attachment; filename=%s.%s",
-                                             publicationName));
+                                             publicationName,
-
+                                             exporter.getSupportedFormat().
-
+                    getFileExtension()));
         } else {
+            //If more than one publication is exported, use 'publications' as
+            //filename.
             response.setHeader("Content-Disposition",
-                               "attachment; filename=publications.bib");
+                               String.format(
+                    "attachment; filename=publications.%s",
+                                             exporter.getSupportedFormat().
+                    getFileExtension()));
 
         }
     }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/PublicationFormat.java

@@ -1,15 +1,45 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter;
 
 import javax.activation.MimeType;
 
 /**
+ * Describes the format provided by an implementation of 
+ * {@link SciPublicationsExporter}.
  *
- * @author jensp
+ * @author Jens Pelzetter
  */
 public class PublicationFormat {
 
+    /**
+     * Name of the format.
+     */
     private String name;
+    /**
+     * MimeType to use for files of the format.
+     */
     private MimeType mimeType;
+    /**
+     * File extension for files of the format.
+     */
     private String fileExtension;
 
     public PublicationFormat() {

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/SciPublicationsExporter.java

@@ -1,15 +1,45 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter;
 
 import com.arsdigita.cms.contenttypes.Publication;
 
 /**
+ * This interface describes the methods provided by all publication exporters.
  *
- * @author jensp
+ * @author Jens Pelzetter
  */
 public interface SciPublicationsExporter {
 
+    /**
+     *
+     * @return A description of the export format provided by this exporter.
+     */
     PublicationFormat getSupportedFormat();
 
+    /**
+     * Exports an publication to the format provided by this exporter.
+     *
+     * @param publication The publication to export.
+     * @return The data of the publication in the provided export format.
+     */
     String exportPublication(Publication publication);
 
 }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/SciPublicationsExporters.java

@@ -1,3 +1,22 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter;
 
 import java.util.ArrayList;
@@ -8,22 +27,36 @@ import java.util.ServiceLoader;
 import org.apache.log4j.Logger;
 
 /**
+ * This class provides access to implementations of the 
+ * {@link SciPublicationsExporter} interface. It is implemented as a Singleton.
  *
- * @author jensp
+ * @author Jens Pelzetter
  */
 public final class SciPublicationsExporters {
 
     private static final Logger logger = Logger.getLogger(
             SciPublicationsExporters.class);
+    /**
+     * Association of the format and the responsible exporters.
+     */
     private Map<String, SciPublicationsExporter> exporters =
                                                  new HashMap<String, SciPublicationsExporter>();
 
+    /**
+     * The one and only instance of this class. The pattern here ensures that
+     * the instance is created at the first access, but not earlier.
+     */
     private static class Instance {
 
         private static final SciPublicationsExporters INSTANCE =
                                                       new SciPublicationsExporters();
     }
 
+    /**
+     * Creates the instance. Uses the {@link ServiceLoader} to find all available
+     * implementations of {@link SciPublicationsExporter} and puts them into
+     * the {@link #exporters} map.
+     */
     private SciPublicationsExporters() {
         logger.debug("Creating SciPublicationsExporter instance...");
         ServiceLoader<SciPublicationsExporter> exporterServices;
@@ -42,14 +75,28 @@ public final class SciPublicationsExporters {
         logger.debug(String.format("Found %d exporters.", exporters.size()));
     }
 
+    /**
+     * @return The instance of this class.
+     */
     public static SciPublicationsExporters getInstance() {
         return Instance.INSTANCE;
     }
 
+    /**
+     * Retrieves the exporter for the specified format.
+     *
+     * @param format The format which should be supported by the exporter.
+     * @return The exporter for the specified format, or <code>null</code>, if
+     * there is no exporter which supports the specified format.
+     */
     public SciPublicationsExporter getExporterForFormat(final String format) {
         return exporters.get(format);
     }
 
+    /**
+     *
+     * @return A list of all supported export formats.
+     */
     public List<PublicationFormat> getSupportedFormats() {
         List<PublicationFormat> supportedFormats;
 

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/BibTeXExporter.java

@@ -1,16 +1,40 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter.bibtex;
 
 import com.arsdigita.cms.contenttypes.Publication;
 import com.arsdigita.cms.scipublications.exporter.PublicationFormat;
 import com.arsdigita.cms.scipublications.exporter.SciPublicationsExporter;
+import com.arsdigita.cms.scipublications.exporter.bibtex.converters.BibTeXConverter;
 import com.arsdigita.cms.scipublications.exporter.bibtex.converters.BibTeXConverters;
 import javax.activation.MimeType;
 import javax.activation.MimeTypeParseException;
 import org.apache.log4j.Logger;
 
 /**
+ * An exporter for the BibTeX format. The actual conversion between the CCM
+ * publication content types and the BibTeX format is done by the converters
+ * in the <code>com.arsdigita.cms.scipublications.exporter.bibtex</code> which
+ * are implementation the {@link BibTeXConverter} interface.
  *
- * @author jensp
+ * @author Jens Pelzetter
  */
 public class BibTeXExporter implements SciPublicationsExporter {
 

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/builders/AbstractBibTeXBuilder.java

@@ -81,7 +81,7 @@ public abstract class AbstractBibTeXBuilder implements BibTeXBuilder {
                      builder);
         }
 
-        builder.append('}');
+        builder.append("}\n");
 
         return builder.toString();
     }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/AbstractBibTeXConverter.java

@@ -1,3 +1,22 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter.bibtex.converters;
 
 import com.arsdigita.cms.contenttypes.AuthorshipCollection;
@@ -10,13 +29,21 @@ import com.arsdigita.cms.scipublications.exporter.bibtex.builders.BibTeXField;
 import com.arsdigita.cms.scipublications.exporter.bibtex.builders.UnsupportedFieldException;
 
 /**
+ * An abstract implementation of the {@link BibTeXConverter} providing common
+ * functionality for all converters. To create the BibTeX data, implementations
+ * of the {@link BibTeXBuilder} interface are used.
  *
- * @author jensp
+ * @author Jens Pelzetter
  */
 public abstract class AbstractBibTeXConverter implements BibTeXConverter {
 
     private BibTeXBuilder bibTeXBuilder;
 
+    /**
+     * Convert the authors of a publication to BibTeX.
+     *
+     * @param publication The publication to use.
+     */
     protected void convertAuthors(final Publication publication) {
         AuthorshipCollection authors;
 
@@ -32,11 +59,24 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Convert the title of a publication to BibTeX.
+     *
+     * @param publication The publication to use.
+     * @throws UnsupportedFieldException If the title field is not supported by
+     * the BibTeX type.
+     */
     protected void convertTitle(final Publication publication)
             throws UnsupportedFieldException {
         getBibTeXBuilder().setField(BibTeXField.TITLE, publication.getTitle());
     }
 
+    /**
+     * Converts the year of publication to BibTeX.
+     *
+     * @param publication
+     * @throws UnsupportedFieldException
+     */
     protected void convertYear(final Publication publication)
             throws UnsupportedFieldException {
         if (publication.getYearOfPublication() != null) {
@@ -46,6 +86,12 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Converts the publisher to BibTeX.
+     *
+     * @param publication
+     * @throws UnsupportedFieldException
+     */
     protected void convertPublisher(final PublicationWithPublisher publication)
             throws UnsupportedFieldException {
         if (publication.getPublisher() != null) {
@@ -66,6 +112,12 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Convert the ISBN to BibTeX.
+     *
+     * @param publication
+     * @throws UnsupportedFieldException
+     */
     protected void convertISBN(final PublicationWithPublisher publication)
             throws UnsupportedFieldException {
         if (publication.getISBN() != null) {
@@ -74,6 +126,12 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Convert the volume to BibTeX.
+     *
+     * @param publication
+     * @throws UnsupportedFieldException
+     */
     protected void convertVolume(final PublicationWithPublisher publication)
             throws UnsupportedFieldException {
         if (publication.getVolume() != null) {
@@ -82,6 +140,12 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Convert the edition to BibTeX.
+     *
+     * @param publication
+     * @throws UnsupportedFieldException
+     */
     protected void convertEdition(final PublicationWithPublisher publication)
             throws UnsupportedFieldException {
         if (publication.getEdition() != null) {
@@ -90,10 +154,15 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Convert the series to BibTeX.
+     *
+     * @param publication
+     * @throws UnsupportedFieldException
+     */
     protected void convertSeries(final Publication publication)
             throws UnsupportedFieldException {
-        SeriesCollection seriesColl =
+        SeriesCollection seriesColl = publication.getSeries();
-                         publication.getSeries();
         if ((seriesColl != null) && (seriesColl.size() > 0)) {
 
             seriesColl.next();
@@ -105,6 +174,12 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         }
     }
 
+    /**
+     * Retrieves to BibTeX builder for the converter. Uses the implementation
+     * of {@link #getBibTeXType()} for get the BibTeX type.
+     *
+     * @return The BibTeX builder for the converter.
+     */
     protected BibTeXBuilder getBibTeXBuilder() {
         if (bibTeXBuilder == null) {
             bibTeXBuilder = BibTeXBuilders.getInstance().
@@ -114,5 +189,9 @@ public abstract class AbstractBibTeXConverter implements BibTeXConverter {
         return bibTeXBuilder;
     }
 
+    /**
+     *
+     * @return The BibTeX type to use for building the BibTeX data.
+     */
     protected abstract String getBibTeXType();
 }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/ArticleInCollectedVolumeConverter.java

@@ -54,6 +54,10 @@ public class ArticleInCollectedVolumeConverter extends AbstractBibTeXConverter {
 
                 if (article.getCollectedVolume().getPublisher() == null) {
                     builder.setField(BibTeXField.PUBLISHER, "");
+                } else {
+                    builder.setField(BibTeXField.PUBLISHER,
+                                     article.getCollectedVolume().getPublisher().
+                            getTitle());
                 }
 
                 if (article.getCollectedVolume().getVolume() != null) {
@@ -61,6 +65,12 @@ public class ArticleInCollectedVolumeConverter extends AbstractBibTeXConverter {
                                      article.getCollectedVolume().getVolume().
                             toString());
                 }
+
+                if (article.getCollectedVolume().getEdition() != null) {
+                    builder.setField(BibTeXField.EDITION,
+                                     article.getCollectedVolume().getEdition());
+                }
+
                 SeriesCollection seriesColl =
                                  article.getCollectedVolume().getSeries();
                 if ((seriesColl != null) && (seriesColl.size() > 0)) {
@@ -72,13 +82,8 @@ public class ArticleInCollectedVolumeConverter extends AbstractBibTeXConverter {
 
                     seriesColl.close();
                 }
-            } else {
-                builder.setField(BibTeXField.PUBLISHER,
-                                 article.getCollectedVolume().getPublisher().
-                        getTitle());
             }
 
-
             if (article.getChapter() != null) {
                 builder.setField(BibTeXField.CHAPTER, article.getChapter());
             }
@@ -90,10 +95,7 @@ public class ArticleInCollectedVolumeConverter extends AbstractBibTeXConverter {
                                                article.getPagesTo()));
             }
 
-            if (article.getCollectedVolume().getEdition() != null) {
+
-                builder.setField(BibTeXField.EDITION,
-                                 article.getCollectedVolume().getEdition());
-            }
         } catch (UnsupportedFieldException ex) {
             logger.warn("Tried to set unsupported BibTeX field while "
                         + "converting a publication");

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/BibTeXConverter.java

@@ -1,15 +1,45 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter.bibtex.converters;
 
 import com.arsdigita.cms.contenttypes.Publication;
 
 /**
+ * Interface for the BibTeX converters.
  *
- * @param <T>
+ * @author Jens Pelzetter
- * @author jensp
  */
 public interface BibTeXConverter {
 
+    /**
+     * Converts a publication.
+     *
+     * @param publication The publication to convert.
+     * @return The data of the publication converted to BibTeX.
+     * @throws UnsupportedCcmTypeException If the provided publication is of
+     * a type which is not supported by this converter.
+     */
     String convert(Publication publication);
 
+    /**
+     * @return The CCM publication type supported by this converter.
+     */
     String getCcmType();
 }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/BibTeXConverters.java

@@ -1,3 +1,22 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
 package com.arsdigita.cms.scipublications.exporter.bibtex.converters;
 
 import com.arsdigita.cms.contenttypes.Publication;
@@ -5,20 +24,27 @@ import com.arsdigita.cms.contenttypes.PublicationWithPublisher;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.ServiceLoader;
-import java.util.logging.Level;
 import org.apache.log4j.Logger;
 
 /**
+ * Provides easy access to all available BibTeX converters.
  *
- * @author jensp
+ * @author Jens Pelzetter
  */
 public class BibTeXConverters {
 
-    private static final Logger logger = Logger.getLogger(BibTeXConverters.class);
+    private static final Logger logger =
-
+                                Logger.getLogger(BibTeXConverters.class);
+    /**
+     * Associates the available converters with their supported CCM types.
+     */
     private Map<String, BibTeXConverter> converters =
                                          new HashMap<String, BibTeXConverter>();
 
+    /**
+     * Finds all available {@link BibTeXConverter}s and puts them into the
+     * map.
+     */
     private BibTeXConverters() {
         logger.debug("Loading BibTeX converters...");
         ServiceLoader<BibTeXConverter> converterServices;
@@ -38,33 +64,48 @@ public class BibTeXConverters {
         private static BibTeXConverters INSTANCE = new BibTeXConverters();
     }
 
+    /**
+     * @return The instance of this class.
+     */
     public static BibTeXConverters getInstance() {
         return Instance.INSTANCE;
     }
 
+    /**
+     * Converts the provided publication to BibTeX using the responsible
+     * converter. If no converter is found, the
+     * {@link PublicationWithPublisherConverter} or the
+     * {@link PublicationConverter} are used, depending one the base type of
+     * the publication.
+     *
+     * @param publication The publication to convert.
+     * @return The publication converted to BibTeX.
+     */
     public String convert(final Publication publication) {
         try {
             BibTeXConverter converter;
             logger.debug(String.format("Trying to find converter for type '%s'.",
                                        publication.getClass().getName()));
+            //Get the responsible converter
             converter = converters.get(publication.getClass().getName());
             if (converter == null) {
                 logger.debug("No converter found...");
                 if (publication instanceof PublicationWithPublisher) {
-                    logger.debug("Publication is a PublicationWithPublisher, using" +
+                    logger.debug("Publication is a PublicationWithPublisher, using"
-                                 "converter for this type.");
+                                 + "converter for this type.");
                     converter =
                     converters.get(PublicationWithPublisher.class.getName());
                 } else {
-                    logger.debug("Publication is a Publication, using" +
+                    logger.debug("Publication is a Publication, using"
-                                 "converter for this type.");
+                                 + "converter for this type.");
                     converter =
                     converters.get(Publication.class.getName());
                 }
             }
+            //Create an new instance of this converter.
             converter = converter.getClass().newInstance();
+            //Run the converter.
             return converter.convert(publication);
-
         } catch (InstantiationException ex) {
             logger.warn("Failed to instaniate BibTeX converter.", ex);
             return null;

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/ExpertiseConverter.java

@@ -12,7 +12,8 @@ import org.apache.log4j.Logger;
  */
 public class ExpertiseConverter extends AbstractBibTeXConverter {
 
-    private static final Logger logger = Logger.getLogger(ExpertiseConverter.class);
+    private static final Logger logger = Logger.getLogger(
+            ExpertiseConverter.class);
 
     @Override
     protected String getBibTeXType() {
@@ -55,5 +56,4 @@ public class ExpertiseConverter extends AbstractBibTeXConverter {
     public String getCcmType() {
         return Expertise.class.getName();
     }
-
 }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/GreyLiteratureConverter.java

@@ -12,7 +12,8 @@ import org.apache.log4j.Logger;
  */
 public class GreyLiteratureConverter extends AbstractBibTeXConverter {
 
-    private static final Logger logger = Logger.getLogger(GreyLiteratureConverter.class);
+    private static final Logger logger = Logger.getLogger(
+            GreyLiteratureConverter.class);
 
     @Override
     protected String getBibTeXType() {
@@ -55,5 +56,4 @@ public class GreyLiteratureConverter extends AbstractBibTeXConverter {
     public String getCcmType() {
         return GreyLiterature.class.getName();
     }
-
 }

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/InProceedingsConverter.java

@@ -3,7 +3,6 @@ package com.arsdigita.cms.scipublications.exporter.bibtex.converters;
 import com.arsdigita.cms.contenttypes.InProceedings;
 import com.arsdigita.cms.contenttypes.Proceedings;
 import com.arsdigita.cms.contenttypes.Publication;
-import com.arsdigita.cms.contenttypes.SeriesCollection;
 import com.arsdigita.cms.scipublications.exporter.bibtex.builders.BibTeXBuilder;
 import com.arsdigita.cms.scipublications.exporter.bibtex.builders.BibTeXField;
 import com.arsdigita.cms.scipublications.exporter.bibtex.builders.UnsupportedFieldException;
@@ -67,7 +66,7 @@ public class InProceedingsConverter extends AbstractBibTeXConverter {
                                  proceedings.getTitle());
 
                 convertVolume(proceedings);
-                convertSeries(publication);
+                convertSeries(proceedings);
 
                 if (proceedings.getOrganizerOfConference() != null) {
                     builder.setField(BibTeXField.ORGANIZATION,

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/InternetArticleConverter.java

@@ -3,7 +3,6 @@ package com.arsdigita.cms.scipublications.exporter.bibtex.converters;
 import com.arsdigita.cms.contenttypes.InternetArticle;
 import com.arsdigita.cms.contenttypes.Publication;
 import com.arsdigita.cms.scipublications.exporter.bibtex.builders.BibTeXBuilder;
-import com.arsdigita.cms.scipublications.exporter.bibtex.builders.BibTeXField;
 import com.arsdigita.cms.scipublications.exporter.bibtex.builders.UnsupportedFieldException;
 import org.apache.log4j.Logger;
 

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/MonographConverter.java

@@ -46,7 +46,7 @@ public class MonographConverter extends AbstractBibTeXConverter {
             convertEdition(monograph);
         } catch (UnsupportedFieldException ex) {
             logger.warn("Tried to set unsupported BibTeX field while "
-                        + "converting a publication");
+                        + "converting a publication", ex);
         }
 
         return getBibTeXBuilder().toBibTeX();

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/PublicationConverter.java

@@ -21,7 +21,7 @@ public class PublicationConverter extends AbstractBibTeXConverter {
             convertYear(publication);
         } catch (UnsupportedFieldException ex) {
             logger.warn("Tried to set unsupported BibTeX field while "
-                        + "converting a publication");
+                        + "converting a publication", ex);
         }
 
         return getBibTeXBuilder().toBibTeX();

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/converters/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * Provides the converters for are converting the CCM publication content types
+ * to BibTeX.
+ */
+package com.arsdigita.cms.scipublications.exporter.bibtex.converters;

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/bibtex/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * The <code>com.arsdigita.cms.scipublications.exporter.bibtex</code> package
+ * provides an exporter for the BibTeX format.
+ */
+package com.arsdigita.cms.scipublications.exporter.bibtex;

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/AbstractRisConverter.java

@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.AuthorshipCollection;
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.contenttypes.PublicationWithPublisher;
+import com.arsdigita.cms.contenttypes.SeriesCollection;
+
+/**
+ * An abstract base implementation of the {@link RisConverter} interface 
+ * providing common functionality.
+ *
+ * @author Jens Pelzetter
+ */
+public abstract class AbstractRisConverter implements RisConverter {
+
+    private RisBuilder risBuilder = new RisBuilder();
+
+    protected void convertAuthors(final Publication publication) {
+        AuthorshipCollection authors;
+
+        authors = publication.getAuthors();
+        if (authors != null) {
+            while (authors.next()) {
+                if (authors.isEditor()) {
+                    getRisBuilder().addField(RisFields.AU,
+                                             String.format("%s,%s",
+                                                           authors.getAuthor().
+                            getSurname(),
+                                                           authors.getAuthor().
+                            getGivenName()));
+                } else {
+                    getRisBuilder().addField(RisFields.ED,
+                                             String.format("%s,%s",
+                                                           authors.getAuthor().
+                            getSurname(),
+                                                           authors.getAuthor().
+                            getGivenName()));
+                }
+            }
+        }
+    }
+
+    protected void convertTitle(final Publication publication) {
+        getRisBuilder().addField(RisFields.TI,
+                                 publication.getTitle());
+    }
+
+    protected void convertYear(final Publication publication) {
+        getRisBuilder().addField(RisFields.PY,
+                                 String.format("%d///", publication.
+                getYearOfPublication()));
+    }
+
+    protected void convertPublisher(final PublicationWithPublisher publication) {
+        if (publication.getPublisher() != null) {
+            if ((publication.getPublisher().getPlace() != null)
+                && !(publication.getPublisher().getPlace().isEmpty())) {
+                getRisBuilder().addField(RisFields.CY,
+                                         publication.getPublisher().getPlace());
+            }
+
+            getRisBuilder().addField(RisFields.PB,
+                                     publication.getPublisher().getTitle());
+        }
+    }
+
+    protected void convertISBN(final PublicationWithPublisher publication) {
+        if (publication.getISBN() != null) {
+            getRisBuilder().addField(RisFields.SN,
+                                     publication.getISBN());
+        }
+    }
+
+    protected void convertVolume(final PublicationWithPublisher publication) {
+        if (publication.getVolume() != null) {
+            getRisBuilder().addField(RisFields.VL,
+                                     publication.getVolume().toString());
+        }
+    }
+
+    protected void convertEdition(final PublicationWithPublisher publication) {
+        if (publication.getEdition() != null) {
+            getRisBuilder().addField(RisFields.ET,
+                                     publication.getEdition());
+        }
+    }
+
+    protected void convertSeries(final Publication publication) {
+        SeriesCollection seriesColl = publication.getSeries();
+        if ((seriesColl != null) && (seriesColl.size() > 0)) {
+
+            seriesColl.next();
+
+            getRisBuilder().addField(RisFields.T3,
+                                     seriesColl.getSeries().getTitle());
+
+            seriesColl.close();
+        }
+    }
+
+    protected RisBuilder getRisBuilder() {
+        return risBuilder;
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/ArticleInCollectedVolumeConverter.java

@@ -0,0 +1,55 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.ArticleInCollectedVolume;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author jensp
+ */
+public class ArticleInCollectedVolumeConverter extends AbstractRisConverter {
+
+    public String convert(final Publication publication) {
+        ArticleInCollectedVolume article;
+
+        if (!(publication instanceof ArticleInCollectedVolume)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The ArticleInCollectedVolumeConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type ArticleInCollectedVolume or which are "
+                                  + "extending "
+                                  + "ArticleInCollectedVolume. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "ArticleInCollectedVolume and does not "
+                                  + "extends ArticleInCollectedVolume.",
+                                  publication.getClass().getName()));
+        }
+
+        article = (ArticleInCollectedVolume) publication;
+
+        getRisBuilder().setType(RisTypes.CHAP);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        if (article.getCollectedVolume() != null) {
+            getRisBuilder().addField(RisFields.BT,
+                                     article.getCollectedVolume().getTitle());
+
+        }
+
+        if (article.getPagesFrom() != null) {
+            getRisBuilder().addField(RisFields.SP,
+                                     article.getPagesFrom().toString());
+            getRisBuilder().addField(RisFields.EP,
+                                     article.getPagesTo().toString());
+        }
+
+        return getRisBuilder().toRis();
+    }
+
+    public String getCcmType() {
+        return ArticleInCollectedVolume.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/ArticleInJournalConverter.java

@@ -0,0 +1,61 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.ArticleInJournal;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class ArticleInJournalConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        ArticleInJournal article;
+
+        if (!(publication instanceof ArticleInJournal)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The ArticleInJournalConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type ArticleInJournal or which are "
+                                  + "extending "
+                                  + "ArticleInJournal. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "ArticleInJournal and does not "
+                                  + "extends ArticleInJournal.",
+                                  publication.getClass().getName()));
+        }
+
+        article = (ArticleInJournal) publication;
+
+        getRisBuilder().setType(RisTypes.MGZN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        if (article.getJournal() != null) {
+            getRisBuilder().addField(RisFields.JF,
+                                     article.getJournal().getTitle());
+        }
+
+        if (article.getVolume() != null) {
+            getRisBuilder().addField(RisFields.VL,
+                                     article.getVolume().toString());
+        }
+
+        if (article.getPagesFrom() != null) {
+            getRisBuilder().addField(RisFields.SP,
+                                     article.getPagesFrom().toString());
+            getRisBuilder().addField(RisFields.EP,
+                                     article.getPagesTo().toString());
+        }
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return ArticleInJournalConverter.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/CollectedVolumeConverter.java

@@ -0,0 +1,46 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.CollectedVolume;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class CollectedVolumeConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        CollectedVolume collectedVolume;
+
+        if (!(publication instanceof CollectedVolume)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The PublicationWithPublicationConverter only "
+                                  + "supports publication types which are "
+                                  + "extending CollectedVolume. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "does not extends "
+                                  + "CollectedVolume.",
+                                  publication.getClass().getName()));
+        }
+
+        collectedVolume = (CollectedVolume) publication;
+
+        getRisBuilder().setType(RisTypes.BOOK);
+        convertAuthors(publication);
+
+        convertTitle(publication);
+        convertYear(publication);
+
+        convertPublisher(collectedVolume);
+        convertISBN(collectedVolume);
+        convertEdition(collectedVolume);
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return CollectedVolume.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/ExpertiseConverter.java

@@ -0,0 +1,44 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Expertise;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class ExpertiseConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        Expertise expertise;
+
+        if (!(publication instanceof Expertise)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The ExpertiseConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type Expertise or which are "
+                                  + "extending "
+                                  + "Expertise. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "Expertise and does not "
+                                  + "extends Expertise.",
+                                  publication.getClass().getName()));
+        }
+
+        expertise = (Expertise) publication;
+
+        getRisBuilder().setType(RisTypes.GEN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        return getRisBuilder().toRis();        
+    }
+
+    @Override
+    public String getCcmType() {
+        return Expertise.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/GreyLiteratureConverter.java

@@ -0,0 +1,44 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.GreyLiterature;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class GreyLiteratureConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        GreyLiterature greyLiterature;
+
+        if (!(publication instanceof GreyLiterature)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The GreyLiteratureConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type GreyLiterature or which are "
+                                  + "extending "
+                                  + "GreyLiterature. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "GreyLiterature and does not "
+                                  + "extends GreyLiterature.",
+                                  publication.getClass().getName()));
+        }
+
+        greyLiterature = (GreyLiterature) publication;
+
+        getRisBuilder().setType(RisTypes.GEN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return GreyLiterature.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/InProceedingsConverter.java

@@ -0,0 +1,65 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.InProceedings;
+import com.arsdigita.cms.contenttypes.Proceedings;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class InProceedingsConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        InProceedings inProceedings;
+
+        if (!(publication instanceof InProceedings)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The InProceedingsConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type InProceedings or which are "
+                                  + "extending "
+                                  + "InProceedings. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "InProceedings and does not "
+                                  + "extends InProceedings.",
+                                  publication.getClass().getName()));
+        }
+
+        inProceedings = (InProceedings) publication;
+
+        getRisBuilder().setType(RisTypes.GEN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        if (inProceedings.getPagesFrom() != null) {
+            getRisBuilder().addField(RisFields.SP,
+                    inProceedings.getPagesFrom().toString());
+             getRisBuilder().addField(RisFields.EP,
+                    inProceedings.getPagesTo().toString());
+        }
+
+        if(inProceedings.getProceedings() != null) {
+            Proceedings proceedings;
+
+            proceedings = inProceedings.getProceedings();
+
+            getRisBuilder().addField(RisFields.BT,
+                    proceedings.getTitle());
+
+            convertVolume(proceedings);
+            convertSeries(proceedings);
+            convertPublisher(proceedings);
+        }
+
+        return getRisBuilder().toString();
+    }
+
+    @Override
+    public String getCcmType() {
+        return InProceedings.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/InternetArticleConverter.java

@@ -0,0 +1,44 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.InternetArticle;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class InternetArticleConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        InternetArticle article;
+
+        if (!(publication instanceof InternetArticle)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The InternetArticleConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type InternetArticle or which are "
+                                  + "extending "
+                                  + "InternetArticle. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "InternetArticle and does not "
+                                  + "extends InternetArticle.",
+                                  publication.getClass().getName()));
+        }
+
+        article = (InternetArticle) publication;
+
+        getRisBuilder().setType(RisTypes.GEN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return InternetArticle.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/MonographConverter.java

@@ -0,0 +1,46 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Monograph;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class MonographConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        Monograph monograph;
+
+        if (!(publication instanceof Monograph)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The MonographConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type Monograph or which are extending "
+                                  + "Monograh. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type Monograph and does not "
+                                  + "extends Monograph.",
+                                  publication.getClass().getName()));
+        }
+
+        monograph = (Monograph) publication;
+
+        getRisBuilder().setType(RisTypes.BOOK);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        convertPublisher(monograph);
+        convertISBN(monograph);
+        convertEdition(monograph);
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return Monograph.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/ProceedingsConverter.java

@@ -0,0 +1,49 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Proceedings;
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author jensp
+ */
+public class ProceedingsConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        Proceedings proceedings;
+
+        if (!(publication instanceof Proceedings)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The ProceedingsConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type Proceedings or which are "
+                                  + "extending "
+                                  + "Proceedings. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "Proceedings and does not "
+                                  + "extends Proceedings.",
+                                  publication.getClass().getName()));
+        }
+
+        proceedings = (Proceedings) publication;
+
+        getRisBuilder().setType(RisTypes.CONF);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        convertVolume(proceedings);
+        convertSeries(publication);
+        convertPublisher(proceedings);
+
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return Proceedings.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/PublicationConverter.java

@@ -0,0 +1,23 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class PublicationConverter extends AbstractRisConverter {
+
+    public String convert(final Publication publication) {
+        getRisBuilder().setType(RisTypes.GEN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        return getRisBuilder().toRis();
+    }
+
+    public String getCcmType() {
+        return Publication.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/PublicationWithPublisherConverter.java

@@ -0,0 +1,43 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.contenttypes.PublicationWithPublisher;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class PublicationWithPublisherConverter extends AbstractRisConverter {
+
+    public String convert(final Publication publication) {
+        PublicationWithPublisher _publication;
+
+        if (!(publication instanceof PublicationWithPublisher)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The PublicationWithPublicationConverter only "
+                                  + "supports publication types which are "
+                                  + "extending PublicationWithPublisher. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "does not extends "
+                                  + "PublicationWithPublisher.",
+                                  publication.getClass().getName()));
+        }
+
+        _publication = (PublicationWithPublisher) publication;
+
+        getRisBuilder().setType(RisTypes.GEN);
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        convertPublisher(_publication);
+        convertISBN(_publication);
+        convertEdition(_publication);
+
+        return getRisBuilder().toRis();
+    }
+
+    public String getCcmType() {
+        return PublicationWithPublisher.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/ReviewConverter.java

@@ -0,0 +1,15 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Review;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class ReviewConverter extends ArticleInJournalConverter {
+
+    @Override
+    public String getCcmType() {
+        return Review.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/RisBuilder.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import java.util.EnumMap;
+import java.util.Map;
+
+/**
+ * Build an reference in RIS format.
+ *
+ * @author Jens Pelzetter
+ */
+public class RisBuilder {
+
+    /**
+     * Type of the reference
+     */
+    private RisTypes type;
+    /**
+     * Fields of the reference.
+     */
+    private Map<RisFields, String> fields = new EnumMap<RisFields, String>(
+            RisFields.class);
+
+    public RisBuilder() {
+    }
+
+    /**
+     * Sets the type of the reference.
+     *
+     * @param type Valid RIS type
+     */
+    public void setType(final RisTypes type) {
+        this.type = type;
+    }
+
+    /**
+     * Adds a field to the reference.
+     *
+     * @param field The name of the field.
+     * @param value The value of the field.
+     */
+    public void addField(final RisFields field, final String value) {
+        fields.put(field, value);
+    }
+
+    /**
+     * Creates the RIS string.
+     *
+     * @return The reference in the RIS format.
+     */
+    public String toRis() {
+        StringBuilder builder;
+
+        builder = new StringBuilder();
+
+        appendField("TY", type.name(), builder);
+        for (Map.Entry<RisFields, String> field : fields.entrySet()) {
+            appendField(field.getKey().name(),
+                        field.getValue(),
+                        builder);
+        }
+        appendField("ER", "", builder);
+
+        return builder.toString();
+    }
+
+    /**
+     * Helper method for adding a field.
+     *
+     * @param name The name of the field.
+     * @param value The value of the field.
+     * @param builder The {@link StringBuilder} to use.
+     */
+    private void appendField(final String name,
+                             final String value,
+                             final StringBuilder builder) {
+        builder.append(name);
+        builder.append("  - ");
+        builder.append(value);
+        builder.append("\r\n");
+    }
+
+    @Override
+    public String toString() {
+        return toRis();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/RisConverter.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Publication;
+
+/**
+ * Interface for the RIS converters
+ *
+ * @author Jens Pelzetter
+ */
+public interface RisConverter {
+
+    /**
+     * Converts a publication.
+     *
+     * @param publication The publication to convert.
+     * @return The data of the publication converted to RIS.
+     * @throws UnsupportedCcmTypeException If the provided publication is of
+     * a type which is not supported by this converter.
+     */
+    String convert(Publication publication);
+
+    /**
+     * @return The CCM publication type supported by this converter.
+     */
+    String getCcmType();
+
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/RisConverters.java

@@ -0,0 +1,80 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.contenttypes.PublicationWithPublisher;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.ServiceLoader;
+import org.apache.log4j.Logger;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class RisConverters {
+
+    private static final Logger logger = Logger.getLogger(RisConverters.class);
+    /**
+     * Associates the available converters with their supported CCM types.
+     */
+    private Map<String, RisConverter> converters =
+                                      new HashMap<String, RisConverter>();
+
+    private RisConverters() {
+        logger.debug("Loading RIS converters...");
+        ServiceLoader<RisConverter> converterServices;
+
+        converterServices = ServiceLoader.load(RisConverter.class);
+
+        for (RisConverter converter : converterServices) {
+            logger.debug(String.format("Found converter for CCM type '%s'...",
+                                       converter.getCcmType()));
+            converters.put(converter.getCcmType(), converter);
+        }
+        logger.debug(String.format("Found %d converters.", converters.size()));
+    }
+
+    private static class Instance {
+
+        private static RisConverters INSTANCE = new RisConverters();
+    }
+
+    public static RisConverters getInstance() {
+        return Instance.INSTANCE;
+    }
+
+    public String convert(final Publication publication) {
+        try {
+            RisConverter converter;
+            logger.debug(String.format("Trying to find converter for type '%s'.",
+                                       publication.getClass().getName()));
+            //Get the responsible converter
+            converter = converters.get(publication.getClass().getName());
+            if (converter == null) {
+                logger.debug("No converter found...");
+                if (publication instanceof PublicationWithPublisher) {
+                    logger.debug("Publication is a PublicationWithPublisher, using"
+                                 + "converter for this type.");
+                    converter =
+                    converters.get(PublicationWithPublisher.class.getName());
+                } else {
+                    logger.debug("Publication is a Publication, using"
+                                 + "converter for this type.");
+                    converter =
+                    converters.get(Publication.class.getName());
+                }
+            }
+            //Create an new instance of this converter.
+            converter = converter.getClass().newInstance();
+            //Run the converter.
+            return converter.convert(publication);
+
+        } catch (InstantiationException ex) {
+            logger.warn("Failed to instaniate RIS converter.", ex);
+            return null;
+        } catch (IllegalAccessException ex) {
+            logger.warn("Failed to instaniate RIS converter.", ex);
+            return null;
+        }
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/RisExporter.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.scipublications.exporter.PublicationFormat;
+import com.arsdigita.cms.scipublications.exporter.SciPublicationsExporter;
+import javax.activation.MimeType;
+import javax.activation.MimeTypeParseException;
+import org.apache.log4j.Logger;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class RisExporter implements SciPublicationsExporter {
+
+    private static final Logger logger = Logger.getLogger(RisExporter.class);
+
+    public PublicationFormat getSupportedFormat() {
+        try {
+            return new PublicationFormat("RIS",
+                    new MimeType("text", "x-ris"),
+                    "ris");
+        } catch(MimeTypeParseException ex) {
+             logger.warn("Failed to create MimeType for PublicationFormat."
+                        + "Using null mimetype instead. Cause: ", ex);
+            return new PublicationFormat("RIS",
+                                         null,
+                                         "ris");
+        }
+    }
+
+    public String exportPublication(final Publication publication) {
+        return RisConverters.getInstance().convert(publication);
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/RisFields.java

@@ -0,0 +1,335 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+/**
+ * <p>
+ * Fields supported by RIS for describing a publication, excluding the
+ * fields <code>TY</code> (type of reference) and <code>ER</code> (end of 
+ * reference). These fields are automatically set by the converters.
+ * </p>
+ * <p>
+ * The descriptions of the fields or tags as they are called in the RIS
+ * specification are copied from the specification
+ * </p>
+ *
+ * @author Jens Pelzetter
+ */
+public enum RisFields {
+
+    /**
+     * Reference ID. According to the specification not used by reference
+     * managers.
+     */
+    ID,
+    /**
+     * Title Primary. Note that the BT tag maps to this field only for
+     * Whole Book and Unpublished Work references. This field can contain
+     * alphanumeric characters; there is no practical length limit to this
+     * field.
+     */
+    T1,
+    /**
+     * @see #T1
+     */
+    TI,
+    /**
+     * @see #T1
+     * @see #T2
+     */
+    CT,
+    /**
+     * @see #T1
+     * @see #T2
+     */
+    BT,
+    /**
+     * <p>
+     * Author Primary. Each author must be on a separate line, preceded by this
+     * tag. Each reference can contain
+     * unlimited author fields, and can contain up to 255 characters for each
+     * field. The author name must be in the following syntax:
+     * </p>
+     * <pre>
+     * Lastname,Firstname,Suffix
+     * </pre>
+     * <p>
+     * For Firstname, you can use full names, initials, or both. The format for
+     * the author’s first name is as follows:
+     * </p>
+     * <pre>
+     * Phillips,A.J.
+     * Phillips,Albert John
+     * Phillips,Albert
+     * </pre>
+     * <dl>
+     * <dt><code>Lastname</code></dt>
+     * <dd>Any string of letters, spaces, and hyphens</dd>
+     * <dt><code>Firstname</code></dt>
+     * <dd>Any string of letters, spaces, and hyphens</dd>
+     * <dt><code>Initial</code></dt>
+     * <dd>Any single letter followed by a period</dd>
+     * <dt><code>Full Name</code></dt>
+     * <dd>Any string of letters, spaces, and hyphens</dd>
+     * <dt><code>Suffix</code></dt>
+     * <dd>Jr/Sr/II/III/MD etc. (Phillips,A.J.,Sr.); use of the suffix is
+     * optional</dd>
+     * </dl>
+     */
+    A1,
+    /**
+     * @see #A1
+     */
+    AU,
+    /**
+     * <p>
+     * Date Primary. This date must be in the following format:
+     * </p>
+     * <pre>
+     * YYYY/MM/DD/other info
+     * </pre>
+     * <p>
+     * The year, month and day fields are all numeric. The other info field can
+     * be any string of letters, spaces and hyphens. Note that each specific
+     * date information is optional, however the slashes (“/”) are not. For
+     * example, if you just had the <code>year</code> and
+     * <code>other info</code>, then the output
+     * would look like:
+     * </p>
+     * <pre>
+     * “1993///Spring.”
+     * </pre>
+     */
+    Y1,
+    /**
+     * @see #Y1
+     */
+    PY,
+    /**
+     * Notes. These are free text fields and can contain
+     * alphanumeric characters; there is no practical length limit to this
+     * field.
+     */
+    N1,
+    /**
+     * @see #N1
+     */
+    AB,
+    /**
+     * Keywords. Each keyword or phrase must be on its own line, preceded by
+     * this tag. A keyword can consist of multiple words (phrases) and can be
+     * up to
+     * 255 characters long. There can unlimited keywords in a reference.
+     */
+    KW,
+    /**
+     * <p>
+     * Reprint status. This optional field can contain one of three status
+     * notes. Each must be in uppercase, and the date after “ON REQUEST” must
+     * be in
+     * USA format, in parentheses: (MM/DD/YY). If this field is blank in your
+     * downloaded text file, the Import function assumes the reprint status is
+     * “NOT IN FILE.”
+     * </p>
+     * <p>The three options are:</p>
+     * <dl>
+     * <dt><code>IN FILE</code></dt>
+     * <dd>This is for references that you have a physical copy of in your
+     * files.</dd>
+     * <dt><code>NOT IN FILE</code></dt>
+     * <dd>This is for references that you do not have physical copies of in
+     * your files.</dd>
+     * <dt><code>ON REQUEST (mm/dd/yy)</code></dt>
+     * <dd>This means that you have sent for a reprint of the reference;
+     * the date is the date on which the reprint was requested (in mm/dd/yy
+     * format).</dd>
+     * </dl>
+     */
+    RP,
+    /**
+     * Start page number; an alphanumeric string, there is no practical length
+     * limit to this field.
+     */
+    SP,
+    /**
+     * Ending page number, as above.
+     * @see #SP
+     */
+    EP,
+    /**
+     * Periodical name: full format. This is an alphanumeric field of up to
+     * 255 characters.
+     */
+    JF,
+    /**
+     * Periodical name: standard abbreviation. This is the 362 Appendix C—RIS
+     * Format Specifications
+     */
+    JO,
+    /**
+     * periodical in which the article was (or is to be, in the case of in-
+     * press references) published. This is an alphanumeric field of up to 255
+     * characters. If possible, periodical names should be abbreviated in the
+     * Index Medicus style, with periods after the abbreviations. If this is
+     * not possible (your large bibliography file in your wordprocessor has no
+     * periods after abbreviations), you can use the “RIS Format (Adds periods)”
+     * Import filter definition. This definition uses the Periodical Word
+     * Dictionary.
+     */
+    JA,
+    /**
+     * Periodical name: user abbreviation 1. This is an alphanumeric field of
+     * up to 255 characters.
+     */
+    J1,
+    /**
+     * Periodical name: user abbreviation 2. This is an alphanumeric field of
+     * up to 255 characters.
+     */
+    J2,
+    /**
+     * Volume number. This is an optional field, there is no practical length
+     * limit to this field.
+     */
+    VL,
+    /**
+     * Title Secondary. Note that the BT tag maps to this field for all 
+     * reference types except for Whole Book and Unpublished Work
+     * references. This field can contain alphanumeric characters; there is no
+     * practical length limit to this field.
+     */
+    T2,
+    /**
+     * Author Secondary. Each author must be on a separate line, preceded by
+     * this tag. Each reference can contain unlimited author
+     * fields. The author name must be in the correct syntax (refer to A1 and AU
+     * fields). This author name can be up to 255 characters long.
+     * @see #A1
+     */
+    A2,
+    /**
+     * @see #A2
+     */
+    ED,
+    /**
+     * Issue. This is an alphanumeric field, there is no practical
+     * length limit to this field.
+     */
+    IS,
+    /**
+     * @see #IS
+     */
+    CP,
+    /**
+     * City of publication; this is an alphanumeric field; there is no
+     * practical length limit to this field.
+     */
+    CY,
+    /**
+     * Publisher; this is an alphanumeric field; there is no practical length
+     * limit to this field.
+     */
+    PB,
+    /**
+     * Title Series. This field can contain alphanumeric characters; there is
+     * no practical length limit to this field.
+     */
+    T3,
+    /**
+     * Author Series. Each author must be on a separate line, preceded by
+     * this tag. Each reference can unlimited author fields. The author name must be
+     * in the correct syntax (refer to A1 and AU fields). Each author name can be up
+     * to 255 characters long.
+     */
+    A3,
+    /**
+     *  Abstract. This is a free text field and can contain alphanumeric
+     * characters; there is no practical length limit to this field.
+     */
+    N2,
+    /**
+     * ISSN/ISBN. This field can contain alphanumeric characters. There is no
+     * practical length limit to this field.
+     */
+    SN,
+    /**
+     * Availability. This field can contain alphanumeric characters. There is
+     * no practical length limit to this field.
+     */
+    AV,
+    /**
+     * Date Secondary. (Refer to Y1 and PY fields).
+     * @see #Y1
+     * @see #PY
+     */
+    Y2,
+    /**
+     * Miscellaneous 1. This field can contain alphanumeric characters. There
+     * is no practical length limit to this field.
+     */
+    M1,
+    /**
+     * Miscellaneous 2. This field can contain alphanumeric characters. There
+    is no practical length limit to this field.
+     */
+    M2,
+    /**
+     * Miscellaneous 3. This field can contain alphanumeric characters. There
+     * is no practical length limit to this field.
+     */
+    M3,
+    /**
+     * Address. This is a free text field and contain alphanumeric
+     * characters; there is no practical length limit to this field.
+     */
+    AD,
+    /**
+     * Web/URL. There is no practical length limit to this field. URL
+     * addresses can be entered individually, one per tag or multiple addresses can
+     * be entered on one line using a semi-colon as a separator.
+     */
+    UR,
+    /**
+     * Link to PDF. There is no practical length limit to this field. URL
+     * addresses can be entered individually, one per tag or multiple addresses can
+     * be entered on one line using a semi-colon as a separator.
+     */
+    L1,
+    /**
+     * Link to Full-text. There is no practical length limit to this field.
+     * URL addresses can be entered Reference Manager User’s Guide 365 individually,
+     * one per tag or multiple addresses can be entered on one line using a semi-
+     * colon as a separator.
+     */
+    L2,
+    /**
+     * Related Records. There is no practical length limit to this field.
+     */
+    L3,
+    /**
+     * Images. There is no practical length limit to this field.
+     */
+    L4,
+    /**
+     * Edition. Not found in the specification, but used but by some other
+     * exports.
+     */
+    ET
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/RisTypes.java

@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2010 Jens Pelzetter,
+ * for the Center of Social Politics of the University of Bremen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+/**
+ * Reference types supported by the RIS format.
+ *
+ * @author Jens Pelzetter
+ */
+public enum RisTypes {
+
+    /**
+     * Abstract
+     */
+    ABST,
+    /**
+     * Audiovisual material
+     */
+    ADVS,
+    /**
+     * Art Work
+     */
+    ART,
+    /**
+     * Bill/Resolution
+     */
+    BILL,
+    /**
+     * Book, Whole
+     */
+    BOOK,
+    /**
+     * Case
+     */
+    CASE,
+    /**
+     * Book chapter
+     */
+    CHAP,
+    /**
+     * Computer program
+     */
+    COMP,
+    /**
+     * Conference proceedings
+     */
+    CONF,
+    /**
+     * Catalog
+     */
+    CTLG,
+    /**
+     * Data file
+     */
+    DATA,
+    /**
+     * Electronic citation
+     */
+    ELEC,
+    /**
+     * Generic
+     */
+    GEN,
+    /**
+     * Hearing
+     */
+    HEAR,
+    /**
+     * Internet Communication
+     */
+    ICOMM,
+    /**
+     * In Press
+     */
+    INPR,
+    /**
+     * Journal (full)
+     */
+    JFULL,
+    /**
+     * Journal
+     */
+    JOUR,
+    /**
+     * Map
+     */
+    MAP,
+    /**
+     * Magazine article
+     */
+    MGZN,
+    /**
+     * Motion picture
+     */
+    MPCT,
+    /**
+     * Music score
+     */
+    MUSIC,
+    /**
+     * Newspaper
+     */
+    NEWS,
+    /**
+     * Pamphlet
+     */
+    PAMP,
+    /**
+     * Patent
+     */
+    PAT,
+    /**
+     * Personal communication
+     */
+    PCOMM,
+    /**
+     * Report
+     */
+    RPRT,
+    /**
+     * Serial (Book, Monograph)
+     */
+    SER,
+    /**
+     * Slide
+     */
+    SLIDE,
+    /**
+     * Sound recording
+     */
+    SOUND,
+    /**
+     * Statute
+     */
+    STAT,
+    /**
+     * Thesis/Dissertation
+     */
+    THES,
+    /**
+     * Unenacted bill/resoution
+     */
+    UNBILL,
+    /**
+     * Unpublished work
+     */
+    UNPB,
+    /**
+     * Video recording
+     */
+    VIDEO
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/UnsupportedCcmTypeException.java

@@ -0,0 +1,34 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.scipublications.exporter.bibtex.converters.*;
+
+/**
+ *
+ * @author jensp
+ */
+public class UnsupportedCcmTypeException extends RuntimeException {
+
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * Creates a new instance of <code>UnsupportedCcmType</code> without detail message.
+     */
+    public UnsupportedCcmTypeException() {
+    }
+
+    /**
+     * Constructs an instance of <code>UnsupportedCcmType</code> with the specified detail message.
+     * @param msg the detail message.
+     */
+    public UnsupportedCcmTypeException(final String msg) {
+        super(msg);
+    }
+
+    public UnsupportedCcmTypeException(final Throwable cause) {
+        super(cause);
+    }
+
+    public UnsupportedCcmTypeException(final String msg, Throwable cause) {
+        super(msg, cause);
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/exporter/ris/WorkingPaperConverter.java

@@ -0,0 +1,45 @@
+package com.arsdigita.cms.scipublications.exporter.ris;
+
+import com.arsdigita.cms.contenttypes.Publication;
+import com.arsdigita.cms.contenttypes.WorkingPaper;
+
+/**
+ *
+ * @author Jens Pelzetter
+ */
+public class WorkingPaperConverter extends AbstractRisConverter {
+
+    @Override
+    public String convert(final Publication publication) {
+        WorkingPaper workingPaper;
+
+        if (!(publication instanceof WorkingPaper)) {
+            throw new UnsupportedCcmTypeException(
+                    String.format("The WorkingPaperConverter only "
+                                  + "supports publication types which are of the"
+                                  + "type WorkingPaper or which are "
+                                  + "extending "
+                                  + "WorkingPaper. The "
+                                  + "provided publication is of type '%s' which "
+                                  + "is not of type "
+                                  + "WorkingPaper and does not "
+                                  + "extends WorkingPaper.",
+                                  publication.getClass().getName()));
+        }
+
+        workingPaper = (WorkingPaper) publication;
+
+        getRisBuilder().setType(RisTypes.UNPB);
+
+        convertAuthors(publication);
+        convertTitle(publication);
+        convertYear(publication);
+
+        return getRisBuilder().toRis();
+    }
+
+    @Override
+    public String getCcmType() {
+        return WorkingPaper.class.getName();
+    }
+}

ccm-sci-publications/src/com/arsdigita/cms/scipublications/package-info.java

@@ -0,0 +1,20 @@
+/**
+ * <p>
+ * The SciPublications package provides several functions for working
+ * with the Publication content types provided by the ccm-sci-publications
+ * module.
+ * </p>
+ * <p>
+ * This includes exporters for reference management software and imports
+ * from such formats. Examples are BibTeX and RIS.
+ * </p>
+ * <p>
+ * The entry point for all functions is provided by the
+ * <code>SciPublications</code>
+ * application and the <code>SciPublicationsServlet</code>. The application
+ * makes heavy use of the {@link ServiceLoader} class which was introduced in
+ * Java 1.6. 
+ * </p>
+ *
+ */
+package com.arsdigita.cms.scipublications;