libreccm-legacy/ccm-cms-assets-fileattachment/src/com/arsdigita/cms/contentassets/FileAttachmentURLFinder.java

86 lines
3.0 KiB
Java
Executable File

/*
* 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
*
* Created on 11-May-04
*/
package com.arsdigita.cms.contentassets;
import com.arsdigita.cms.ContentItem;
import com.arsdigita.cms.contentassets.FileAttachment;
import com.arsdigita.cms.dispatcher.AssetURLFinder;
import com.arsdigita.kernel.NoValidURLException;
import com.arsdigita.kernel.URLFinder;
import com.arsdigita.kernel.URLService;
import com.arsdigita.persistence.DataObject;
import com.arsdigita.persistence.OID;
import com.arsdigita.persistence.SessionManager;
/**
* A URLFinder for FileAttachments. In the draft context (ie, in CMS
* backend search) it will return the draft url for the containing item.
* Otherwise it will delegate to an AssetURLFinder.
*
* @author mbooth@redhat.com
* @author cgyg9330
*/
public class FileAttachmentURLFinder implements URLFinder {
private static final AssetURLFinder s_assetFinder = new AssetURLFinder();
/**
* Find URL for a file attachment by finding its article
*
* @param oid the OID of the file attachment
* @param content the context of the search (ie draft/live)
*/
public String find(OID oid, String context) throws NoValidURLException {
if (!"draft".equals(context))
return s_assetFinder.find(oid, context);
DataObject dobj = SessionManager.getSession().retrieve(oid);
if (dobj == null) {
throw new NoValidURLException("No such data object " + oid);
}
if (!dobj
.getObjectType()
.getQualifiedName()
.equals(FileAttachment.BASE_DATA_OBJECT_TYPE)) {
throw new NoValidURLException(
"Data Object is not a file attachment "
+ dobj.getObjectType().getQualifiedName()
+ " "
+ oid);
}
FileAttachment file = new FileAttachment(dobj);
ContentItem owner = file.getFileOwner();
return URLService.locate(owner.getOID(), context);
}
/**
* Find URL for the live context of a file attachment. Delegates to
* AssetURLFinder.
*
* @param oid the OID of the file attachment
*
*/
public String find(OID oid) throws NoValidURLException {
return s_assetFinder.find(oid);
}
}