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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 org.apache.tools.ant.taskdefs.cvslib;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Enumeration;
import java.util.TimeZone;
import org.apache.tools.ant.util.DOMElementWriter;
import org.apache.tools.ant.util.DOMUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* Class used to generate an XML changelog.
*
*/
public class ChangeLogWriter {
/** output format for dates written to xml file */
private static final SimpleDateFormat OUTPUT_DATE
= new SimpleDateFormat("yyyy-MM-dd");
/** output format for times written to xml file */
private static final SimpleDateFormat OUTPUT_TIME
= new SimpleDateFormat("HH:mm");
/** stateless helper for writing the XML document */
private static final DOMElementWriter DOM_WRITER = new DOMElementWriter();
static {
TimeZone utc = TimeZone.getTimeZone("UTC");
OUTPUT_DATE.setTimeZone(utc);
OUTPUT_TIME.setTimeZone(utc);
}
/**
* Print out the specified entries.
*
* @param output writer to which to send output.
* @param entries the entries to be written.
*/
public void printChangeLog(final PrintWriter output,
final CVSEntry[] entries) {
try {
output.println("");
Document doc = DOMUtils.newDocument();
Element root = doc.createElement("changelog");
DOM_WRITER.openElement(root, output, 0, "\t");
output.println();
for (int i = 0; i < entries.length; i++) {
final CVSEntry entry = entries[i];
printEntry(doc, output, entry);
}
DOM_WRITER.closeElement(root, output, 0, "\t", true);
output.flush();
output.close();
} catch (IOException e) {
throw new org.apache.tools.ant.BuildException(e);
}
}
/**
* Print out an individual entry in changelog.
*
* @param doc Document used to create elements.
* @param entry the entry to print
* @param output writer to which to send output.
*/
private void printEntry(Document doc, final PrintWriter output,
final CVSEntry entry) throws IOException {
Element ent = doc.createElement("entry");
DOMUtils.appendTextElement(ent, "date",
OUTPUT_DATE.format(entry.getDate()));
DOMUtils.appendTextElement(ent, "time",
OUTPUT_TIME.format(entry.getDate()));
DOMUtils.appendCDATAElement(ent, "author", entry.getAuthor());
final Enumeration enumeration = entry.getFiles().elements();
while (enumeration.hasMoreElements()) {
final RCSFile file = (RCSFile) enumeration.nextElement();
Element f = DOMUtils.createChildElement(ent, "file");
DOMUtils.appendCDATAElement(f, "name", file.getName());
DOMUtils.appendTextElement(f, "revision", file.getRevision());
final String previousRevision = file.getPreviousRevision();
if (previousRevision != null) {
DOMUtils.appendTextElement(f, "prevrevision",
previousRevision);
}
}
DOMUtils.appendCDATAElement(ent, "msg", entry.getComment());
DOM_WRITER.write(ent, output, 1, "\t");
}
}