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* you may not use this file except in compliance with the License.
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* distributed under the License is distributed on an "AS IS" BASIS,
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/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(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.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package loci.poi.hpsf;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import loci.common.*;
import loci.poi.poifs.filesystem.DirectoryEntry;
import loci.poi.util.*;
/**
* Abstract superclass for the convenience classes {@link
* SummaryInformation} and {@link DocumentSummaryInformation}.
*
* The motivation behind this class is quite nasty if you look
* behind the scenes, but it serves the application programmer well by
* providing him with the easy-to-use {@link SummaryInformation} and
* {@link DocumentSummaryInformation} classes. When parsing the data a
* property set stream consists of (possibly coming from an {@link
* java.io.InputStream}) we want to read and process each byte only
* once. Since we don't know in advance which kind of property set we
* have, we can expect only the most general {@link
* PropertySet}. Creating a special subclass should be as easy as
* calling the special subclass' constructor and pass the general
* {@link PropertySet} in. To make things easy internally, the special
* class just holds a reference to the general {@link PropertySet} and
* delegates all method calls to it.
*
* A cleaner implementation would have been like this: The {@link
* PropertySetFactory} parses the stream data into some internal
* object first. Then it finds out whether the stream is a {@link
* SummaryInformation}, a {@link DocumentSummaryInformation} or a
* general {@link PropertySet}. However, the current implementation
* went the other way round historically: the convenience classes came
* only late to my mind.
*
* @author Rainer Klute <[email protected]>
* @version $Id: SpecialPropertySet.java 489730 2006-12-22 19:18:16Z bayard $
* @since 2002-02-09
*/
public abstract class SpecialPropertySet extends MutablePropertySet
{
/**
* The "real" property set SpecialPropertySet
* delegates to.
*/
private MutablePropertySet delegate;
/**
* Creates a SpecialPropertySet.
*
* @param ps The property set to be encapsulated by the
* SpecialPropertySet
*/
public SpecialPropertySet(final PropertySet ps)
{
delegate = new MutablePropertySet(ps);
}
/**
*
Creates a SpecialPropertySet.
*
* @param ps The mutable property set to be encapsulated by the
* SpecialPropertySet
*/
public SpecialPropertySet(final MutablePropertySet ps)
{
delegate = ps;
}
/**
* @see PropertySet#getByteOrder
*/
public int getByteOrder()
{
return delegate.getByteOrder();
}
/**
* @see PropertySet#getFormat
*/
public int getFormat()
{
return delegate.getFormat();
}
/**
* @see PropertySet#getOSVersion
*/
public int getOSVersion()
{
return delegate.getOSVersion();
}
/**
* @see PropertySet#getClassID
*/
public ClassID getClassID()
{
return delegate.getClassID();
}
/**
* @see PropertySet#getSectionCount
*/
public int getSectionCount()
{
return delegate.getSectionCount();
}
/**
* @see PropertySet#getSections
*/
public List getSections()
{
return delegate.getSections();
}
/**
* @see PropertySet#isSummaryInformation
*/
public boolean isSummaryInformation()
{
return delegate.isSummaryInformation();
}
/**
* @see PropertySet#isDocumentSummaryInformation
*/
public boolean isDocumentSummaryInformation()
{
return delegate.isDocumentSummaryInformation();
}
/**
* @see PropertySet#getSingleSection
*/
public Section getFirstSection()
{
return delegate.getFirstSection();
}
/**
* @see loci.poi.hpsf.MutablePropertySet#addSection(loci.poi.hpsf.Section)
*/
public void addSection(final Section section)
{
delegate.addSection(section);
}
/**
* @see loci.poi.hpsf.MutablePropertySet#clearSections()
*/
public void clearSections()
{
delegate.clearSections();
}
/**
* @see loci.poi.hpsf.MutablePropertySet#setByteOrder(int)
*/
public void setByteOrder(final int byteOrder)
{
delegate.setByteOrder(byteOrder);
}
/**
* @see loci.poi.hpsf.MutablePropertySet#setClassID(loci.poi.hpsf.ClassID)
*/
public void setClassID(final ClassID classID)
{
delegate.setClassID(classID);
}
/**
* @see loci.poi.hpsf.MutablePropertySet#setFormat(int)
*/
public void setFormat(final int format)
{
delegate.setFormat(format);
}
/**
* @see loci.poi.hpsf.MutablePropertySet#setOSVersion(int)
*/
public void setOSVersion(final int osVersion)
{
delegate.setOSVersion(osVersion);
}
/**
* @see loci.poi.hpsf.MutablePropertySet#toInputStream()
*/
public RandomAccessInputStream toInputStream() throws IOException, WritingNotSupportedException
{
return delegate.toInputStream();
}
/**
* @see loci.poi.hpsf.MutablePropertySet#write(loci.poi.poifs.filesystem.DirectoryEntry, java.lang.String)
*/
public void write(final DirectoryEntry dir, final String name) throws WritingNotSupportedException, IOException
{
delegate.write(dir, name);
}
/**
* @see loci.poi.hpsf.MutablePropertySet#write(java.io.OutputStream)
*/
public void write(final OutputStream out) throws WritingNotSupportedException, IOException
{
delegate.write(out);
}
/**
* @see loci.poi.hpsf.PropertySet#equals(java.lang.Object)
*/
public boolean equals(final Object o)
{
return delegate.equals(o);
}
/**
* @see loci.poi.hpsf.PropertySet#getProperties()
*/
public Property[] getProperties() throws NoSingleSectionException
{
return delegate.getProperties();
}
/**
* @see loci.poi.hpsf.PropertySet#getProperty(int)
*/
protected Object getProperty(final int id) throws NoSingleSectionException
{
return delegate.getProperty(id);
}
/**
* @see loci.poi.hpsf.PropertySet#getPropertyBooleanValue(int)
*/
protected boolean getPropertyBooleanValue(final int id) throws NoSingleSectionException
{
return delegate.getPropertyBooleanValue(id);
}
/**
* @see loci.poi.hpsf.PropertySet#getPropertyIntValue(int)
*/
protected int getPropertyIntValue(final int id) throws NoSingleSectionException
{
return delegate.getPropertyIntValue(id);
}
/**
* @see loci.poi.hpsf.PropertySet#hashCode()
*/
public int hashCode()
{
return delegate.hashCode();
}
/**
* @see loci.poi.hpsf.PropertySet#toString()
*/
public String toString()
{
return delegate.toString();
}
/**
* @see loci.poi.hpsf.PropertySet#wasNull()
*/
public boolean wasNull() throws NoSingleSectionException
{
return delegate.wasNull();
}
}