/**
* Parser calls this for each element in a document.
*
* @param namespaceURI the namespace (not used)
* @param localName the current tag we are parsing
* @param qName ? (not used)
* @param atts attributes for the current tag
* @throws SAXException if there is a problem with the parser
*/
public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
throws SAXException {
currentKey = localName;
elementBuffer = "";
if (currentKey.equals("processStep")) {
currentEntry = new ProvenanceEntry();
} else if (currentKey.equals("program")) {
currentEntry.setProgram(atts.getValue("version"), atts.getValue("build"));
} else if (currentKey.equals("programArguments")) {
currentEntry.setProgramArguments(atts.getValue("inputs"), atts.getValue("outputs"));
} else if (currentKey.equals("platform")) {
currentEntry.setPlatformVersion(atts.getValue("version"));
} else if (currentKey.equals("compiler")) {
currentEntry.setJavaVersion(atts.getValue("version"));
}
}
/**
* Parser calls this when the end tag of each element is reached. Data collected in the
* elementbuffer is generally saved to the image info.
*
* @param namespaceURI the namespace (not used)
* @param localName the current tag we are parsing
* @param qName ? (not used)
* @throws SAXException if there is a problem with the parser
*/
public void endElement(String namespaceURI, String localName, String qName)
throws SAXException {
currentKey = localName;
if (currentKey.equals("program")) {
currentEntry.setProgramName(elementBuffer);
} else if (currentKey.equals("programArguments")) {
currentEntry.setAction(elementBuffer);
} else if (currentKey.equals("timeStamp")) {
currentEntry.setTimeStamp(elementBuffer);
} else if (currentKey.equals("user")) {
currentEntry.setUser(elementBuffer);
} else if (currentKey.equals("hostName")) {
currentEntry.setHostName(elementBuffer);
} else if (currentKey.equals("architecture")) {
currentEntry.setArchitecture(elementBuffer);
} else if (currentKey.equals("platform")) {
currentEntry.setPlatform(elementBuffer);
} else if (currentKey.equals("compiler")) {
// last to be read in, so add to ProvenanceHolder
holder.add(currentEntry);
}
}
/** Writes the data provenance into xml formatted file */
public void writeXML() throws IOException {
FileWriter fw;
if (file.exists() == true) {
file.delete();
file = new File(fileDir + File.separator + fileName);
}
try {
fw = new FileWriter(file);
bw = new BufferedWriter(fw);
Vector<XMLAttributes> atVector = new Vector<XMLAttributes>();
bw.write(XML_HEADER);
bw.newLine();
bw.write(DATA_PROVENANCE);
bw.newLine();
openTag("provenance", true);
int numEntries = pHolder.size();
ProvenanceEntry entry;
for (int i = 0; i < numEntries; i++) {
entry = pHolder.elementAt(i);
openTag("processStep", true);
atVector.add(new XMLAttributes("version", entry.getMipavVersion()));
this.closedTag("program", entry.getProgramName(), atVector);
atVector.add(new XMLAttributes("inputs", entry.getProgramInputs()));
closedTag("programArguments", entry.getAction(), atVector);
closedTag("timeStamp", entry.getTimeStamp());
closedTag("user", entry.getUser());
closedTag("hostName", entry.getHostName());
closedTag("architecture", entry.getArchitecture());
atVector.add(new XMLAttributes("version", entry.getPlatformVersion()));
closedTag("platform", entry.getPlatform(), atVector);
atVector.add(new XMLAttributes("version", entry.getJavaVersion()));
closedTag("compiler", "java", atVector);
openTag("processStep", false);
}
openTag("provenance", false);
bw.close();
} catch (Exception e) {
System.err.println("CAUGHT EXCEPTION WITHIN writeXML() of FileDataProvenance");
e.printStackTrace();
}
}