/*
* Copyright (c) 2006, Wygwam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* - Neither the name of Wygwam nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.openxml4j.opc.internal;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import org.openxml4j.exceptions.InvalidFormatException;
import org.openxml4j.exceptions.OpenXML4JException;
import org.openxml4j.opc.Package;
import org.openxml4j.opc.PackagePart;
import org.openxml4j.opc.PackagePartName;
import org.openxml4j.opc.internal.marshallers.ZipPartMarshaller;
/**
* Memory version of a package part. Use to
*
* @author Julien Chable
* @version 1.0
*/
public final class MemoryPackagePart extends PackagePart {
/**
* Storage for the part data.
*/
protected byte[] data;
/**
* Size of data.
*/
protected int length;
/**
* Constructor.
*
* @param pack
* The owner package.
* @param partName
* The part name.
* @param contentType
* The content type.
* @throws InvalidFormatException
* If the specified URI is not OPC compliant.
*/
public MemoryPackagePart(Package pack, PackagePartName partName,
String contentType) throws InvalidFormatException {
super(pack, partName, contentType);
}
/**
* Constructor.
*
* @param pack
* The owner package.
* @param partName
* The part name.
* @param contentType
* The content type.
* @param loadRelationships
* Specify if the relationships will be loaded.
* @throws InvalidFormatException
* If the specified URI is not OPC compliant.
*/
public MemoryPackagePart(Package pack, PackagePartName partName,
String contentType, boolean loadRelationships)
throws InvalidFormatException {
super(pack, partName, new ContentType(contentType), loadRelationships);
}
@Override
protected InputStream getInputStreamImpl() {
// If this part has been created from scratch and/or the data buffer is
// not
// initialize, so we do it now.
if (data == null) {
data = new byte[0];
}
return new ByteArrayInputStream(data);
}
@Override
protected OutputStream getOutputStreamImpl() {
return new MemoryPackagePartOutputStream(this);
}
public void clear() {
data = null;
length = 0;
}
@Override
public boolean save(OutputStream os) throws OpenXML4JException {
return new ZipPartMarshaller().marshall(this, os);
}
@Override
public boolean load(InputStream ios) throws InvalidFormatException {
throw new InvalidFormatException("Method not implemented");
}
@Override
public void close() {
// Do nothing
}
@Override
public void flush() {
// Do nothing
}
}