libreccm-legacy/ccm-docmgr/src/com/arsdigita/cms/docmgr/DocLink.java

393 lines
12 KiB
Java
Executable File

/*
* Copyright (C) 2001 - 2003 Red Hat Inc. All Rights Reserved.
*
* The contents of this file are subject to the CCM Public
* License (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of
* the License at http://www.redhat.com/licenses/ccmpl.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Created on Dec 9, 2003
*
*/
package com.arsdigita.cms.docmgr;
import com.arsdigita.categorization.Category;
import com.arsdigita.categorization.CategoryCollection;
import com.arsdigita.cms.ContentBundle;
import com.arsdigita.cms.ContentItem;
import com.arsdigita.cms.ContentPage;
import com.arsdigita.cms.ContentType;
import com.arsdigita.cms.Folder;
import com.arsdigita.cms.util.GlobalizationUtil;
import com.arsdigita.domain.DataObjectNotFoundException;
import com.arsdigita.kernel.ACSObject;
import com.arsdigita.kernel.Kernel;
import com.arsdigita.kernel.KernelExcursion;
import com.arsdigita.kernel.permissions.PermissionService;
import com.arsdigita.persistence.DataObject;
import com.arsdigita.persistence.OID;
import com.arsdigita.persistence.PersistenceException;
import com.arsdigita.search.intermedia.Searchable;
import com.arsdigita.util.Assert;
import com.arsdigita.util.UncheckedWrapperException;
import java.math.BigDecimal;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import org.apache.log4j.Logger;
/**
* DomainObject class which represents <code>DocLink<code> ContentType objects.
*
* A DocLink will either have an internal reference to another Document
* _or_ contain an external (http) URL.
*
* @author <a href="mailto:sshinde@redhat.com">Shashin Shinde</a>
* @author Crag Wolfe
*
* $Id: DocLink.java,v 1.1 2004/12/15 16:06:37 pkopunec Exp $
*
*/
public class DocLink extends ContentPage implements Resource, Searchable {
private static final Logger s_log = Logger.getLogger(DocLink.class.getName());
private static final String NAME_SUFFIX = "-LinkTo";
/** Data object type for this domain object */
public static final String BASE_DATA_OBJECT_TYPE =
"com.arsdigita.cms.docmgr.DocLink";
/** Data object type for this domain object (for CMS compatibility) */
public static final String TYPE = BASE_DATA_OBJECT_TYPE;
public static final String DESCRIPTION = "description";
private static final String REPOSITORY = "repository";
private static final String TARGET = "target";
private static final String EXTERNAL_URL = "externalURL";
public static final String LAST_MOD_LOCAL = "lastModifiedTimeCached";
public DocLink() {
this(BASE_DATA_OBJECT_TYPE);
try {
setContentType(
ContentType.findByAssociatedObjectType(BASE_DATA_OBJECT_TYPE));
} catch (DataObjectNotFoundException e) {
throw new UncheckedWrapperException(
(String) GlobalizationUtil
.globalize("cms.contenttypes.event_type_not_registered")
.localize(),
e);
}
}
public DocLink(BigDecimal id) throws DataObjectNotFoundException {
this(new OID(BASE_DATA_OBJECT_TYPE, id));
}
public DocLink(OID id) throws DataObjectNotFoundException {
super(id);
}
public DocLink(DataObject obj) {
super(obj);
}
public DocLink(String type) {
super(type);
}
public void setTitle(String title) {
setName(URLEncoder.encode(title));
super.setTitle(title);
}
/**
* @see com.arsdigita.cms.docmgr.Resource#getDescription()
*/
public String getDescription() {
return (String) get(DESCRIPTION);
}
public void setDescription(String desc){
set(DESCRIPTION,desc);
}
public boolean isExternal() {
String s = getExternalURL();
return s != null && s.length() > 0;
}
public String getExternalURL() {
return (String) get(EXTERNAL_URL);
}
public void setExternalURL(String externalURL){
set(EXTERNAL_URL,externalURL);
}
public Repository getRepository() {
if (get(REPOSITORY) == null) {
return null;
}
return new Repository((DataObject) get(REPOSITORY));
}
public void setRepository(Repository repository) {
set(REPOSITORY, repository);
}
/* redundant to versioning, only for performance */
public Date getLastModifiedLocal() {
return (Date) get(LAST_MOD_LOCAL);
}
/* redundant to versioning, only for performance */
public void setLastModifiedLocal(Date last) {
set(LAST_MOD_LOCAL, last);
}
/**
* Set Target Document of this Link.Also set's the name of the Link.
* i.e. target.getName()-LinkToxxxx
*/
public void setTarget(Document target) {
setName(generateLinkName(target));
set(TARGET, target);
}
/**
* Helper method to generate the name of the Link using the
* NAME_SUFFIX,target Document id,and target document name.
* Also truncates the name if it exceeds 200 characters.
*/
private String generateLinkName(Document targetDoc){
StringBuffer buf = new StringBuffer(targetDoc.getName());
buf.append(NAME_SUFFIX).append(targetDoc.getID());
if(buf.length() > 200){
String docName = targetDoc.getName();
String suffix = NAME_SUFFIX + targetDoc.getID();
int suffixLen = suffix.length();
docName = docName.substring(0,(200 - suffixLen));
docName = docName + suffix;
Assert.isTrue(docName.length() < 201 , "Actual Length is: " + docName.length());
return docName;
} else{
return buf.toString();
}
}
public Document getTarget() {
if (get(TARGET) == null) {
return null;
}
return new Document((DataObject) get(TARGET));
}
/**
* @see com.arsdigita.cms.docmgr.Resource#getParentResource().
* Returns the parent <code>DocFolder</code>
*/
public Resource getParentResource() {
DocFolder parent =
(DocFolder) ((ContentBundle) getParent()).getParent();
return parent;
}
/**
* @see com.arsdigita.cms.docmgr.Resource#isFolder().
* returns false to indicate that it's not a folder.
*/
public boolean isFolder() {
return false;
}
/**
* @see com.arsdigita.cms.docmgr.Resource#isFile().
* returns true to indicate that it's a file.
*/
public boolean isFile() {
return true;
}
/**
* Copies the resource into another location. Preserves the
* original name of the resource but places the copy inside a new
* parent resource.
*
* @param parent the parent of the copy
* @return a copy of the original resource
*/
public Resource copyTo(Resource parent) throws ResourceExistsException {
return copyTo(getTitle(), parent);
}
/**
* Copies the resource into another location with a new name.
*
* @param name the name of the copy
* @param parent the parent of the copy
* @return a copy of the original resource.
*/
public Resource copyTo(String name, final Resource parent) throws ResourceExistsException {
Folder.ItemCollection ic =
((Folder) parent).getItems();
ic.addEqualsFilter("name",URLEncoder.encode(name));
boolean resourceExists = ic.next();
ic.close();
if(resourceExists) {
throw new ResourceExistsException
("Copying document would result in duplicate: "+name);
}
ContentItem item = this;
if (item.getParent() instanceof ContentBundle) {
item = (ContentBundle) item.getParent();
}
if (s_log.isDebugEnabled()) {
s_log.debug("Copying item " + item);
}
final ContentItem newItem = item.copy();
newItem.copyServicesFrom(item);
newItem.setParent((Folder) parent);
newItem.setContentSection(item.getContentSection());
newItem.save();
new KernelExcursion() {
protected void excurse() {
setParty(Kernel.getSystemParty());
PermissionService.setContext(newItem,(ACSObject) parent);
}}.run();
return (Resource) ((ContentBundle) newItem).getPrimaryInstance();
}
/**
* Copies the resource into the same location (same parent) with passed
* in name as new name.
*
* @param name the name of the copy
* @return a copy of the original resource.
*/
public Resource copyTo(String name) throws ResourceExistsException {
final ACSObject parent = getParent();
return copyTo(name , (Resource) parent);
}
/**
* @see com.arsdigita.cms.docmgr.Resource#toURL().
* Not Supported.throws <code>UnsupportedOperationException</code>
*/
public URL toURL() {
throw new UnsupportedOperationException();
}
/**
* @see com.arsdigita.cms.docmgr.Resource#setParentResource(com.arsdigita.cms.docmgr.Resource)
*/
public void setParentResource(final Resource parent) {
final ContentBundle cb = (ContentBundle) getParent();
cb.setParent((ACSObject) parent);
cb.save();
new KernelExcursion() {
protected void excurse() {
setParty(Kernel.getSystemParty());
PermissionService.setContext(cb, (ACSObject) parent);
}
}
.run();
}
/**
* @see com.arsdigita.cms.docmgr.Resource#isRoot()
* returns false to indicate that it's not the root.
*/
public boolean isRoot() {
return false;
}
/**
* Delete this Link along with it's parent ContentBundle
* @see com.arsdigita.domain.DomainObject#delete()
*/
public void delete() throws PersistenceException {
((ContentBundle) getParent()).delete();
}
/**
* Over-ride to avoid any indexing of data for this ContentType.
* returns empty string;
*/
public String getSearchXMLContent() {
return "";
}
/**
* Over-ride to avoid any indexing of data for this ContentType.
* returns empty byte array;
*/
public byte[] getSearchRawContent() {
return new byte[0];
}
public void setCategories(String[] catIDs) {
HashSet newCategories = new HashSet();
if (catIDs != null) {
for(int i =0; i < catIDs.length; i++) {
newCategories.add(catIDs[i]);
s_log.debug("newCategories: "+catIDs[i]);
}
}
CategoryCollection cats = getCategoryCollection();
Category cat;
if (cats.next()) {
cat = cats.getCategory();
String catID = cat.getID().toString();
if (newCategories.contains(catID)) {
newCategories.remove(catID);
} else {
removeCategory(cat);
}
}
Iterator additions = newCategories.iterator();
while (additions.hasNext()) {
addCategory(new Category(new BigDecimal
((String) additions.next())));
}
}
protected void beforeSave() {
super.beforeSave();
setLastModifiedLocal(new Date());
}
public String getSearchLanguage() {
// Returns language type of document. "eng" is english, (ISO 639-2)
// If not English, should be overridden.
return "eng";
}
public String getSearchLinkText() {
return generateLinkName(getTarget());
}
public String getSearchUrlStub() {
return "";
}
}