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     * StreamContentItem.java
027     * ------------
028     * (C) Copyright 2006, by Pentaho Corporation.
029     */
030    
031    package org.jfree.repository.stream;
032    
033    import java.io.OutputStream;
034    import java.io.IOException;
035    import java.io.InputStream;
036    
037    import org.jfree.repository.ContentItem;
038    import org.jfree.repository.ContentLocation;
039    import org.jfree.repository.ContentIOException;
040    import org.jfree.repository.Repository;
041    
042    /**
043     * Creation-Date: 13.11.2006, 17:27:04
044     *
045     * @author Thomas Morgner
046     */
047    public class StreamContentItem implements ContentItem
048    {
049      private WrappedInputStream inputStream;
050      private WrappedOutputStream outputStream;
051      private ContentLocation parent;
052      private String name;
053    
054      public StreamContentItem(final String name,
055                               final ContentLocation parent,
056                               final WrappedInputStream inputStream,
057                               final WrappedOutputStream outputStream)
058      {
059        this.name = name;
060        this.parent = parent;
061        this.inputStream = inputStream;
062        this.outputStream = outputStream;
063      }
064    
065      public boolean isReadable()
066      {
067        if (inputStream == null)
068        {
069          return false;
070        }
071        return inputStream.isClosed() == false;
072      }
073    
074      public boolean isWriteable()
075      {
076        if (outputStream == null)
077        {
078          return false;
079        }
080        return outputStream.isClosed() == false;
081      }
082    
083      public String getMimeType() throws ContentIOException
084      {
085        return getRepository().getMimeRegistry().getMimeType(this);
086      }
087    
088      public OutputStream getOutputStream() throws ContentIOException, IOException
089      {
090        return outputStream;
091      }
092    
093      public InputStream getInputStream() throws ContentIOException, IOException
094      {
095        return inputStream;
096      }
097    
098      public String getName()
099      {
100        return name;
101      }
102    
103      public Object getContentId()
104      {
105        return name;
106      }
107    
108      public Object getAttribute(final String domain, final String key)
109      {
110        return null;
111      }
112    
113      public boolean setAttribute(final String domain, final String key, final Object value)
114      {
115        return false;
116      }
117    
118      public ContentLocation getParent()
119      {
120        return parent;
121      }
122    
123      public Repository getRepository()
124      {
125        return parent.getRepository();
126      }
127    
128      public boolean delete()
129      {
130        return false;
131      }
132    }