public TargetHistory get(String configId, String outputName) {
TargetHistory targetHistory = (TargetHistory) history.get(outputName);
if (targetHistory != null) {
if (!targetHistory.getProcessorConfiguration().equals(configId)) {
targetHistory = null;
}
}
return targetHistory;
}
public void commit() throws IOException {
//
// if not dirty, no need to update file
//
if (dirty) {
//
// build (small) hashtable of config id's in history
//
Hashtable configs = new Hashtable(20);
Enumeration elements = history.elements();
while (elements.hasMoreElements()) {
TargetHistory targetHistory = (TargetHistory) elements.nextElement();
String configId = targetHistory.getProcessorConfiguration();
if (configs.get(configId) == null) {
configs.put(configId, configId);
}
}
FileOutputStream outStream = new FileOutputStream(historyFile);
OutputStreamWriter outWriter;
//
// early VM's don't support UTF-8 encoding
// try and fallback to the default encoding
// otherwise
String encodingName = "UTF-8";
try {
outWriter = new OutputStreamWriter(outStream, "UTF-8");
} catch (UnsupportedEncodingException ex) {
outWriter = new OutputStreamWriter(outStream);
encodingName = outWriter.getEncoding();
}
BufferedWriter writer = new BufferedWriter(outWriter);
writer.write("<?xml version='1.0' encoding='");
writer.write(encodingName);
writer.write("'?>\n");
writer.write("<history>\n");
StringBuffer buf = new StringBuffer(200);
Enumeration configEnum = configs.elements();
while (configEnum.hasMoreElements()) {
String configId = (String) configEnum.nextElement();
buf.setLength(0);
buf.append(" <processor signature=\"");
buf.append(CUtil.xmlAttribEncode(configId));
buf.append("\">\n");
writer.write(buf.toString());
elements = history.elements();
while (elements.hasMoreElements()) {
TargetHistory targetHistory = (TargetHistory) elements.nextElement();
if (targetHistory.getProcessorConfiguration().equals(configId)) {
buf.setLength(0);
buf.append(" <target file=\"");
buf.append(CUtil.xmlAttribEncode(targetHistory.getOutput()));
buf.append("\" lastModified=\"");
buf.append(Long.toHexString(targetHistory.getOutputLastModified()));
buf.append("\">\n");
writer.write(buf.toString());
SourceHistory[] sourceHistories = targetHistory.getSources();
for (int i = 0; i < sourceHistories.length; i++) {
buf.setLength(0);
buf.append(" <source file=\"");
buf.append(CUtil.xmlAttribEncode(sourceHistories[i].getRelativePath()));
buf.append("\" lastModified=\"");
buf.append(Long.toHexString(sourceHistories[i].getLastModified()));
buf.append("\"/>\n");
writer.write(buf.toString());
}
writer.write(" </target>\n");
}
}
writer.write(" </processor>\n");
}
writer.write("</history>\n");
writer.close();
dirty = false;
}
}