@Override
public MathsEpsReturn getEps(MathsEpsParams params) {
long start = System.currentTimeMillis();
MathsEpsReturn result = new MathsEpsReturn();
result.setOk(false);
result.setEps(EMPTY);
result.setError("");
try {
// Parse XML
Document mathml = parseMathml(params, result, start);
if (mathml == null) {
return result;
}
return getEps(params, mathml, result, start);
} catch (Throwable t) {
result.setError("MathML unexpected error - " + t.getMessage());
t.printStackTrace();
return result;
}
}
/**
* Parses mathml from the input into a DOM document. Split out so that subclass can call.
*
* @param params Parameters including MathML
* @param result Blank result object
* @param start Request start time (milliseconds since epoch)
* @return Document or null if failed (in which case should return result)
*/
protected Document parseMathml(MathsEpsParams params, MathsEpsReturn result, long start)
throws Exception {
try {
Document mathml = parseMathml(params.getMathml());
if (SHOWPERFORMANCE) {
System.err.println("Parse DOM: " + (System.currentTimeMillis() - start));
}
return mathml;
} catch (SAXParseException e) {
int line = e.getLineNumber(), col = e.getColumnNumber();
result.setError("MathML parse error at " + line + ":" + col + " - " + e.getMessage());
return null;
}
}
/**
* Does real work; separated out so it can be efficiently called from subclass.
*
* @param params Request parameters
* @param doc MathML as DOM document
* @param result Initialised result object with blank fields
* @param start Start time of request (milliseconds since epoch)
* @return Return result
* @throws IOException Any error creating image file
*/
protected MathsEpsReturn getEps(
MathsEpsParams params, Document doc, MathsEpsReturn result, long start) throws IOException {
result.setError("EPS output from JEuclid not supported");
return result;
}