1 files changed, 80 insertions, 0 deletions
diff --git a/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/xslt/DocumentMergerImpl.java b/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/xslt/DocumentMergerImpl.java
new file mode 100644
index 000000000..b8d3ddfb9
--- /dev/null
+++ b/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/xml/xslt/DocumentMergerImpl.java
@@ -0,0 +1,80 @@
+/*
+ * 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.xslt;
+
+import org.w3c.dom.Document;
+
+import org.openoffice.xmerge.DocumentMerger;
+import org.openoffice.xmerge.MergeException;
+import org.openoffice.xmerge.ConverterCapabilities;
+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.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;
+
+/**
+ * Xslt implementation of {@code DocumentMerger} for the {@link
+ * org.openoffice.xmerge.converter.xml.xslt.PluginFactoryImpl PluginFactoryImpl}.
+ */
+public class DocumentMergerImpl implements DocumentMerger {
+
+    private final ConverterCapabilities cc_;
+    private final org.openoffice.xmerge.Document orig;
+
+    public DocumentMergerImpl(org.openoffice.xmerge.Document doc, ConverterCapabilities cc) {
+        cc_ = cc;
+        this.orig = doc;
+    }
+
+    public void merge(org.openoffice.xmerge.Document modifiedDoc) throws MergeException {
+
+        GenericOfficeDocument wdoc1 = (GenericOfficeDocument) orig;
+        GenericOfficeDocument wdoc2 = (GenericOfficeDocument) 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 paragraph 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);
+
+        docMerge.applyDifference(i1, i2, diffTable);
+    }
+}