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/************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: DocumentMergerImpl.java,v $
* $Revision: 1.3 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package org.openoffice.xmerge.converter.xml.sxw.aportisdoc;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.openoffice.xmerge.DocumentMerger;
import org.openoffice.xmerge.MergeException;
import org.openoffice.xmerge.ConverterCapabilities;
import org.openoffice.xmerge.converter.xml.sxw.SxwDocument;
import org.openoffice.xmerge.merger.DiffAlgorithm;
import org.openoffice.xmerge.merger.Difference;
import org.openoffice.xmerge.merger.NodeMergeAlgorithm;
import org.openoffice.xmerge.merger.Iterator;
import org.openoffice.xmerge.merger.DiffAlgorithm;
import org.openoffice.xmerge.merger.diff.ParaNodeIterator;
import org.openoffice.xmerge.merger.diff.IteratorLCSAlgorithm;
import org.openoffice.xmerge.merger.merge.DocumentMerge;
import org.openoffice.xmerge.merger.merge.CharacterBaseParagraphMerge;
import org.openoffice.xmerge.util.Debug;
/**
* AportisDoc implementation of <code>DocumentMerger</code>
* for the {@link
* org.openoffice.xmerge.converter.xml.sxw.aportisdoc.PluginFactoryImpl
* PluginFactoryImpl}.</p>
*/
public class DocumentMergerImpl implements DocumentMerger {
private ConverterCapabilities cc_;
private org.openoffice.xmerge.Document orig = null;
public DocumentMergerImpl(org.openoffice.xmerge.Document doc, ConverterCapabilities cc) {
cc_ = cc;
this.orig = doc;
}
public void merge(org.openoffice.xmerge.Document modifiedDoc) throws MergeException {
SxwDocument wdoc1 = (SxwDocument) orig;
SxwDocument wdoc2 = (SxwDocument) modifiedDoc;
Document doc1 = wdoc1.getContentDOM();
Document doc2 = wdoc2.getContentDOM();
Iterator i1 = new ParaNodeIterator(cc_, doc1.getDocumentElement());
Iterator i2 = new ParaNodeIterator(cc_, doc2.getDocumentElement());
DiffAlgorithm diffAlgo = new IteratorLCSAlgorithm();
// find out the paragrah level diffs
Difference[] diffTable = diffAlgo.computeDiffs(i1, i2);
if (Debug.isFlagSet(Debug.INFO)) {
Debug.log(Debug.INFO, "Diff Result: ");
for (int i = 0; i < diffTable.length; i++) {
Debug.log(Debug.INFO, diffTable[i].debug());
}
}
// merge the paragraphs
NodeMergeAlgorithm charMerge = new CharacterBaseParagraphMerge();
DocumentMerge docMerge = new DocumentMerge(cc_, charMerge);
Iterator result = null;
docMerge.applyDifference(i1, i2, diffTable);
}
}
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