001    /**
002     * ===========================================================
003     * LibRepository : a free Java content repository access layer
004     * ===========================================================
005     *
006     * Project Info:  http://jfreereport.pentaho.org/librepository/
007     *
008     * (C) Copyright 2006, by Pentaho Corporation and Contributors.
009     *
010     * This library is free software; you can redistribute it and/or modify it under the terms
011     * of the GNU Lesser General Public License as published by the Free Software Foundation;
012     * either version 2.1 of the License, or (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015     * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016     * See the GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public License along with this
019     * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020     * Boston, MA 02111-1307, USA.
021     *
022     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023     * in the United States and other countries.]
024     *
025     * ------------
026     * FileContentEntity.java
027     * ------------
028     * (C) Copyright 2006, by Pentaho Corporation.
029     */
030    
031    package org.jfree.repository.file;
032    
033    import java.io.File;
034    import java.util.Date;
035    
036    import org.jfree.repository.ContentEntity;
037    import org.jfree.repository.ContentLocation;
038    import org.jfree.repository.LibRepositoryBoot;
039    import org.jfree.repository.Repository;
040    
041    /**
042     * Creation-Date: 13.11.2006, 12:01:47
043     *
044     * @author Thomas Morgner
045     */
046    public abstract class FileContentEntity implements ContentEntity
047    {
048      private File backend;
049      private ContentLocation parent;
050      private Repository repository;
051    
052      protected FileContentEntity(final ContentLocation parent, final File backend)
053      {
054        this.repository = parent.getRepository();
055        this.parent = parent;
056        this.backend = backend;
057      }
058    
059      protected FileContentEntity(final Repository repository, final File backend)
060      {
061        this.repository = repository;
062        this.backend = backend;
063      }
064    
065      public Repository getRepository()
066      {
067        return repository;
068      }
069    
070      public String getName()
071      {
072        return backend.getName();
073      }
074    
075      protected File getBackend()
076      {
077        return backend;
078      }
079    
080      public Object getContentId()
081      {
082        return getName();
083      }
084    
085      public Object getAttribute(final String domain, final String key)
086      {
087        if (LibRepositoryBoot.REPOSITORY_DOMAIN.equals(domain))
088        {
089          if (LibRepositoryBoot.SIZE_ATTRIBUTE.equals(key))
090          {
091            return new Long(backend.length());
092          }
093          else if (LibRepositoryBoot.VERSION_ATTRIBUTE.equals(key))
094          {
095            return new Date(backend.lastModified());
096          }
097        }
098        return null;
099      }
100    
101      public boolean setAttribute(final String domain, final String key, final Object value)
102      {
103        if (LibRepositoryBoot.REPOSITORY_DOMAIN.equals(domain))
104        {
105          if (LibRepositoryBoot.VERSION_ATTRIBUTE.equals(key))
106          {
107            if (value instanceof Date)
108            {
109              final Date date = (Date) value;
110              return backend.setLastModified(date.getTime());
111            }
112            else if (value instanceof Number)
113            {
114              final Number time = (Number) value;
115              return backend.setLastModified(time.longValue());
116            }
117          }
118        }
119        return false;
120      }
121    
122      public ContentLocation getParent()
123      {
124        return parent;
125      }
126    
127      public boolean delete()
128      {
129        return backend.delete();
130      }
131    }