private Vector decodeEvents()

in src/main/java/org/apache/log4j/receivers/xml/UtilLoggingXMLDecoder.java [300:437]
107 lines of code
26 McCabe index (conditional complexity)

  private Vector decodeEvents(final Document document) {
    Vector events = new Vector();

    NodeList eventList = document.getElementsByTagName("record");

    for (int eventIndex = 0; eventIndex < eventList.getLength();
        eventIndex++) {
      Node eventNode = eventList.item(eventIndex);

      Logger logger = null;
    long timeStamp = 0L;
    Level level = null;
    String threadName = null;
    Object message = null;
    String ndc = null;
    String[] exception = null;
    String className = null;
    String methodName = null;
    String fileName = null;
    String lineNumber = null;
    Hashtable properties = new Hashtable();

      //format of date: 2003-05-04T11:04:52
      //ignore date or set as a property? using millis in constructor instead
      NodeList list = eventNode.getChildNodes();
      int listLength = list.getLength();

      if (listLength == 0) {
        continue;
      }

      for (int y = 0; y < listLength; y++) {
        String tagName = list.item(y).getNodeName();

        if (tagName.equalsIgnoreCase("logger")) {
          logger = Logger.getLogger(getCData(list.item(y)));
        }

        if (tagName.equalsIgnoreCase("millis")) {
          timeStamp = Long.parseLong(getCData(list.item(y)));
        }

        if (tagName.equalsIgnoreCase("level")) {
          level = UtilLoggingLevel.toLevel(getCData(list.item(y)));
        }

        if (tagName.equalsIgnoreCase("thread")) {
          threadName = getCData(list.item(y));
        }

        if (tagName.equalsIgnoreCase("sequence")) {
          properties.put("log4jid", getCData(list.item(y)));
        }

        if (tagName.equalsIgnoreCase("message")) {
          message = getCData(list.item(y));
        }

        if (tagName.equalsIgnoreCase("class")) {
          className = getCData(list.item(y));
        }

        if (tagName.equalsIgnoreCase("method")) {
          methodName = getCData(list.item(y));
        }

        if (tagName.equalsIgnoreCase("exception")) {
          ArrayList exceptionList = new ArrayList();
          NodeList exList = list.item(y).getChildNodes();
          int exlistLength = exList.getLength();

          for (int i2 = 0; i2 < exlistLength; i2++) {
            Node exNode = exList.item(i2);
            String exName = exList.item(i2).getNodeName();

            if (exName.equalsIgnoreCase("message")) {
              exceptionList.add(getCData(exList.item(i2)));
            }

            if (exName.equalsIgnoreCase("frame")) {
              NodeList exList2 = exNode.getChildNodes();
              int exlist2Length = exList2.getLength();

              for (int i3 = 0; i3 < exlist2Length; i3++) {
                exceptionList.add(getCData(exList2.item(i3)) + "\n");
              }
            }
          }
          if (exceptionList.size() > 0) {
              exception =
                (String[]) exceptionList.toArray(new String[exceptionList.size()]);
          }
        }
      }

        /**
         * We add all the additional properties to the properties
         * hashtable. Override properties that already exist
         */
        if (additionalProperties.size() > 0) {
            if (properties == null) {
                properties = new Hashtable(additionalProperties);
            }
            Iterator i = additionalProperties.entrySet().iterator();
            while (i.hasNext()) {
                Map.Entry e = (Map.Entry) i.next();
                properties.put(e.getKey(), e.getValue());
            }
        }

      LocationInfo info;
      if ((fileName != null)
              || (className != null)
              || (methodName != null)
              || (lineNumber != null)) {
          info = new LocationInfo(fileName, className, methodName, lineNumber);
      } else {
        info = LocationInfo.NA_LOCATION_INFO;
      }

        ThrowableInformation throwableInfo = null;
        if (exception != null) {
            throwableInfo = new ThrowableInformation(exception);
        }

        LoggingEvent loggingEvent = new LoggingEvent(null,
                logger, timeStamp, level, message,
                threadName,
                throwableInfo,
                ndc,
                info,
                properties);

      events.add(loggingEvent);

    }
    return events;
  }