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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
package org.openoffice.xmerge.converter.xml;
import org.w3c.dom.Document;
import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
/**
* This class represents embedded object's in an OpenOffice.org document that
* have a binary representation.
*/
public class EmbeddedBinaryObject extends EmbeddedObject {
/** The object's binary representation. */
private byte[] objData = null;
/**
* Constructor for an embedded object stored using an XML representation.
*
* @param name The name of the object.
* @param type The mime-type of the object. See the class summary.
*/
public EmbeddedBinaryObject(String name, String type) {
super(name, type);
}
/**
* Package private constructor for use when reading an object from a
* compressed SX? file.
*
* @param name The name of the object.
* @param type The mime-type of the object. See the class summary.
* @param source The OfficeZip representation of the SX? file that stores
* the object.
*/
EmbeddedBinaryObject(String name, String type, OfficeZip source) {
super(name, type, source);
}
/**
* This method returns the data for this object.
*
* @return A {@code byte} array containing the object's data.
*/
public byte[] getBinaryData() {
if (objData == null) {
// See if we came from a Zip file
if (zipFile != null) {
objData = zipFile.getNamedBytes(objName);
}
}
return objData;
}
/**
* Sets the data for this object.
*
* @param data A {@code byte} array containing data for the object.
*/
public void setBinaryData(byte[] data) {
objData = data;
hasChanged = true;
}
/**
* Package private method for writing the data of the EmbeddedObject to a
* SX? file.
*
* @param zip An {@code OfficeZip} instance representing the file the
* data is to be written to.
*/
@Override
void write(OfficeZip zip) {
if (hasChanged) {
zip.setNamedBytes(objName, objData);
}
}
/**
* Package private method that constructs the manifest.xml entries for this
* embedded object.
*/
@Override
void writeManifestData(Document manifestDoc) throws DOMException {
Element objNode = manifestDoc.createElement(OfficeConstants.TAG_MANIFEST_FILE);
objNode.setAttribute(OfficeConstants.ATTRIBUTE_MANIFEST_FILE_TYPE, objType);
objNode.setAttribute(OfficeConstants.ATTRIBUTE_MANIFEST_FILE_PATH, objName);
manifestDoc.getDocumentElement().appendChild(objNode);
}
}
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