Пример #1
0
  @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;
    }
  }
Пример #2
0
 /**
  * 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;
   }
 }
Пример #3
0
 /**
  * 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;
 }