Exemple #1
0
 public static synchronized void err(Throwable e) {
   String s = prefix() + e.toString();
   err.println(s);
   ui.output.append(s + "\n");
   for (StackTraceElement ste : e.getStackTrace()) {
     String s1 = "\t" + ste.toString();
     err.println(s1);
     ui.output.append(s1 + "\n");
   }
   ui.output.setCaretPosition(ui.output.getDocument().getLength());
   err.flush();
 }
 protected static String printException(Throwable ex) throws IOException {
   if (ex == null) return null;
   StackTraceElement[] stack_trace = ex.getStackTrace();
   StringBuilder sb = new StringBuilder();
   sb.append("\n<" + CDATA + "\n");
   sb.append(ex.getClass().getName() + " \n");
   for (int i = 0; i < stack_trace.length; i++) {
     StackTraceElement frame = stack_trace[i];
     sb.append("at " + frame.toString() + " \n");
   }
   sb.append("\n]]>");
   return sb.toString();
 }
  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException {

    try {

      response.setHeader("Cache-Control", "no-cache");
      response.setCharacterEncoding("UTF-8");

      String task = request.getParameter("task");

      Element data = null;

      // process help request
      if (request.getParameter("help") != null) data = getDescription(task);

      // redirect to home page if there is no task
      if (data == null && task == null) {
        response.setContentType("text/html");
        response
            .getWriter()
            .append(
                "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\"><html><head><meta http-equiv=\"REFRESH\" content=\"0;url="
                    + context.getInitParameter("server_path")
                    + "></head><body></body></html>");
        return;
      }

      // process definition request
      if (data == null && task.equals("define")) {
        int id = resolveIntegerArg(request.getParameter("id"), -1);
        int length = resolveIntegerArg(request.getParameter("length"), definer.getDefaultLength());
        int format = resolveIntegerArg(request.getParameter("format"), definer.getDefaultFormat());
        int maxImageWidth =
            resolveIntegerArg(
                request.getParameter("maxImageWidth"), definer.getDefaultMaxImageWidth());
        int maxImageHeight =
            resolveIntegerArg(
                request.getParameter("maxImageHeight"), definer.getDefaultMaxImageHeight());
        int linkDestination =
            resolveIntegerArg(
                request.getParameter("linkDestination"), definer.getDefaultLinkDestination());
        boolean getImages = resolveBooleanArg(request.getParameter("getImages"), false);

        data =
            definer.getDefinition(
                id, length, format, linkDestination, getImages, maxImageWidth, maxImageHeight);
      }

      // all of the remaining tasks require data to be cached, so lets make sure that is finished
      // before continuing.
      if (!cachingThread.isOk()) throw new ServletException("Could not cache wikipedia data");

      double progress = cachingThread.getProgress();
      if (data == null && (progress < 1 || task.equals("progress"))) {
        // still caching up data, not ready to return a response yet.

        data = doc.createElement("loading");
        data.setAttribute("progress", df.format(progress));
        task = "loading";
      }

      // process search request
      if (data == null && task.equals("search")) {
        String term = request.getParameter("term");
        String id = request.getParameter("id");
        int linkLimit =
            resolveIntegerArg(request.getParameter("linkLimit"), searcher.getDefaultMaxLinkCount());
        int senseLimit =
            resolveIntegerArg(
                request.getParameter("senseLimit"), searcher.getDefaultMaxSenseCount());

        if (id == null) data = searcher.doSearch(term, linkLimit, senseLimit);
        else data = searcher.doSearch(Integer.parseInt(id), linkLimit);
      }

      // process compare request
      if (data == null && task.equals("compare")) {
        String term1 = request.getParameter("term1");
        String term2 = request.getParameter("term2");
        int linkLimit =
            resolveIntegerArg(request.getParameter("linkLimit"), comparer.getDefaultMaxLinkCount());
        boolean details =
            resolveBooleanArg(request.getParameter("details"), comparer.getDefaultShowDetails());

        data = comparer.getRelatedness(term1, term2, details, linkLimit);
      }

      // process wikify request
      if (data == null && task.equals("wikify")) {

        if (this.wikifier == null)
          throw new ServletException(
              "Wikifier is not available. You must configure the servlet so that it has access to link detection and disambiguation models.");

        String source = request.getParameter("source");
        int sourceMode =
            resolveIntegerArg(request.getParameter("sourceMode"), Wikifier.SOURCE_AUTODETECT);
        String linkColor = request.getParameter("linkColor");
        String baseColor = request.getParameter("baseColor");
        double minProb =
            resolveDoubleArg(
                request.getParameter("minProbability"), wikifier.getDefaultMinProbability());
        int repeatMode =
            resolveIntegerArg(request.getParameter("repeatMode"), wikifier.getDefaultRepeatMode());
        boolean showTooltips =
            resolveBooleanArg(
                request.getParameter("showTooltips"), wikifier.getDefaultShowTooltips());
        String bannedTopics = request.getParameter("bannedTopics");

        boolean wrapInXml = resolveBooleanArg(request.getParameter("wrapInXml"), true);

        if (wrapInXml) {
          data =
              wikifier.wikifyAndWrapInXML(
                  source,
                  sourceMode,
                  minProb,
                  repeatMode,
                  bannedTopics,
                  baseColor,
                  linkColor,
                  showTooltips);
        } else {
          response.setContentType("text/html");
          response
              .getWriter()
              .append(
                  wikifier.wikify(
                      source,
                      sourceMode,
                      minProb,
                      repeatMode,
                      bannedTopics,
                      baseColor,
                      linkColor,
                      showTooltips));
          return;
        }
      }

      if (data == null) throw new Exception("Unknown Task");

      // wrap data
      Element wrapper = doc.createElement("WikipediaMinerResponse");
      wrapper.setAttribute("server_path", context.getInitParameter("server_path"));
      wrapper.setAttribute("service_name", context.getInitParameter("service_name"));
      wrapper.appendChild(data);

      data = wrapper;

      // Transform or serialize xml data as appropriate

      Transformer tf = null;

      if (request.getParameter("xml") == null) {
        // we need to transform the data into html
        tf = transformersByName.get(task);

        if (request.getParameter("help") != null) tf = transformersByName.get("help");
      }

      if (tf == null) {
        // we need to serialize the data as xml
        tf = transformersByName.get("serializer");
        response.setContentType("application/xml");
      } else {
        // output will be transformed to html
        response.setContentType("text/html");
        response
            .getWriter()
            .append(
                "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\n");
      }

      tf.transform(new DOMSource(data), new StreamResult(response.getWriter()));

    } catch (Exception error) {
      response.reset();
      response.setContentType("application/xml");
      response.setHeader("Cache-Control", "no-cache");
      response.setCharacterEncoding("UTF8");

      Element xmlError = doc.createElement("Error");
      if (error.getMessage() != null) xmlError.setAttribute("message", error.getMessage());

      Element xmlStackTrace = doc.createElement("StackTrace");
      xmlError.appendChild(xmlStackTrace);

      for (StackTraceElement ste : error.getStackTrace()) {

        Element xmlSte = doc.createElement("StackTraceElement");
        xmlSte.setAttribute("message", ste.toString());
        xmlStackTrace.appendChild(xmlSte);
      }
      try {
        transformersByName
            .get("serializer")
            .transform(new DOMSource(xmlError), new StreamResult(response.getWriter()));
      } catch (Exception e) {
        // TODO: something for when an error is thrown processing an error????

      }
      ;
    }
  }
Exemple #4
0
    public Writer getErrorReport(
        Writer to, final HttpServletRequest request, CharTransformer escape) throws IOException {
      final Writer logMsg = new StringWriter();
      final Writer tee = new org.mmbase.util.ChainedWriter(to, logMsg);
      Writer msg = tee;

      LinkedList<Throwable> stack = getStack();
      String ticket = new Date().toString();

      Map<String, String> props;
      try {
        props = org.mmbase.util.ApplicationContextReader.getProperties("mmbase_errorpage");
      } catch (javax.naming.NamingException ne) {
        props = Collections.emptyMap();
        log.info(ne);
      }

      if (request != null) {
        {
          msg.append("Headers\n----------\n");
          // request properties
          for (Object name : Collections.list(request.getHeaderNames())) {
            msg.append(
                escape.transform(
                    name + ": " + escape.transform(request.getHeader((String) name)) + "\n"));
          }
        }
        {
          msg.append("\nAttributes\n----------\n");
          Pattern p = requestIgnore;
          if (p == null && props.get("request_ignore") != null) {
            p = Pattern.compile(props.get("request_ignore"));
          }
          for (Object name : Collections.list(request.getAttributeNames())) {
            if (p == null || !p.matcher((String) name).matches()) {
              msg.append(
                  escape.transform(name + ": " + request.getAttribute((String) name) + "\n"));
            }
          }
        }
        if (Boolean.TRUE.equals(showSession)
            || (showSession == null && !"false".equals(props.get("show_session")))) {
          HttpSession ses = request.getSession(false);
          if (ses != null) {
            msg.append("\nSession\n----------\n");
            Pattern p = sessionIgnore;
            if (p == null && props.get("session_ignore") != null) {
              p = Pattern.compile(props.get("session_ignore"));
            }
            for (Object name : Collections.list(ses.getAttributeNames())) {
              if (p == null || !p.matcher((String) name).matches()) {
                msg.append(escape.transform(name + ": " + ses.getAttribute((String) name) + "\n"));
              }
            }
          }
        }
      }
      msg.append("\n");
      msg.append("Misc. properties\n----------\n");

      if (request != null) {
        msg.append("method: ").append(escape.transform(request.getMethod())).append("\n");
        msg.append("querystring: ").append(escape.transform(request.getQueryString())).append("\n");
        msg.append("requesturl: ")
            .append(escape.transform(request.getRequestURL().toString()))
            .append("\n");
      }
      if (Boolean.TRUE.equals(showMMBaseVersion)
          || (showMMBaseVersion == null && !"false".equals(props.get("show_mmbase_version")))) {
        msg.append("mmbase version: ").append(org.mmbase.Version.get()).append("\n");
      }
      msg.append("status: ").append("").append(String.valueOf(status)).append("\n\n");

      if (request != null) {
        msg.append("Parameters\n----------\n");
        // request parameters
        Enumeration en = request.getParameterNames();
        while (en.hasMoreElements()) {
          String name = (String) en.nextElement();
          msg.append(name)
              .append(": ")
              .append(escape.transform(request.getParameter(name)))
              .append("\n");
        }
      }
      msg.append("\nException ")
          .append(ticket)
          .append("\n----------\n\n")
          .append(
              exception != null
                  ? (escape.transform(exception.getClass().getName()))
                  : "NO EXCEPTION")
          .append(": ");

      int wroteCauses = 0;
      while (!stack.isEmpty()) {

        Throwable t = stack.removeFirst();
        // add stack stacktraces
        if (t != null) {
          if (stack.isEmpty()) { // write last message always
            msg = tee;
          }
          String message = t.getMessage();
          if (msg != tee) {
            to.append("\n=== skipped(see log)  : ")
                .append(escape.transform(t.getClass().getName()))
                .append(": ")
                .append(message)
                .append("\n");
          }

          msg.append("\n\n").append(escape.transform(t.getClass().getName() + ": " + message));
          StackTraceElement[] stackTrace = t.getStackTrace();
          for (StackTraceElement e : stackTrace) {
            msg.append("\n        at ").append(escape.transform(e.toString()));
          }
          if (!stack.isEmpty()) {
            msg.append("\n-------caused:\n");
          }
          wroteCauses++;
          if (wroteCauses >= MAX_CAUSES) {
            msg = logMsg;
          }
        }
      }
      // write errors to  log
      if (status == 500) {
        try {
          if (props.get("to") != null && props.get("to").length() > 0) {
            javax.naming.Context initCtx = new javax.naming.InitialContext();
            javax.naming.Context envCtx = (javax.naming.Context) initCtx.lookup("java:comp/env");
            Object mailSession = envCtx.lookup("mail/Session");
            Class sessionClass = Class.forName("javax.mail.Session");
            Class recipientTypeClass = Class.forName("javax.mail.Message$RecipientType");
            Class messageClass = Class.forName("javax.mail.internet.MimeMessage");
            Object mail = messageClass.getConstructor(sessionClass).newInstance(mailSession);
            messageClass
                .getMethod("addRecipients", recipientTypeClass, String.class)
                .invoke(mail, recipientTypeClass.getDeclaredField("TO").get(null), props.get("to"));
            messageClass.getMethod("setSubject", String.class).invoke(mail, ticket);
            mail.getClass().getMethod("setText", String.class).invoke(mail, logMsg.toString());
            Class.forName("javax.mail.Transport")
                .getMethod("send", Class.forName("javax.mail.Message"))
                .invoke(null, mail);
            tee.append("\nmailed to (").append(String.valueOf(props)).append(")");
          }

        } catch (Exception nnfe) {
          tee.append("\nnot mailed (").append(String.valueOf(nnfe)).append(")");
          if (log.isDebugEnabled()) {
            log.debug(nnfe.getMessage(), nnfe);
          }
        }
        log.error("TICKET " + ticket + ":\n" + logMsg);
      }
      return to;
    }
  private void printThread() {
    long now = System.currentTimeMillis();

    long diffLastThreadDump = now - lastThreadDump;
    logger.info("diffLastThreadDump:" + diffLastThreadDump);
    if (diffLastThreadDump > 60000) {
      logger.info("had not sent all threads for a while.. will do so now");
      lastThreadDump = now;

      try {
        ThreadMXBean t = ManagementFactory.getThreadMXBean();
        long threads[] = t.getAllThreadIds();
        ThreadInfo[] tinfo = t.getThreadInfo(threads, 40);

        StringBuilder sb = new StringBuilder("All Threads");

        for (int i = 0; i < tinfo.length; i++) {
          ThreadInfo e = tinfo[i];

          try {
            StackTraceElement[] el = e.getStackTrace();
            sb.append(
                "\n\n"
                    + e.getThreadName()
                    + "\n"
                    + " "
                    + " Thread id = "
                    + e.getThreadId()
                    + " "
                    + e.getThreadState());
            if (e.getThreadState().equals(State.BLOCKED)) {
              sb.append(
                  "\n\nBlocked info: "
                      + e.getBlockedCount()
                      + ":"
                      + e.getBlockedTime()
                      + ":"
                      + e.getLockName()
                      + ":"
                      + e.getLockOwnerId()
                      + ":"
                      + e.getLockOwnerName()
                      + "\n"
                      + " "
                      + " Thread id = "
                      + e.getThreadId()
                      + " "
                      + e.getThreadState());

              ThreadInfo eBlockedThread = t.getThreadInfo(e.getLockOwnerId(), 40);
              StackTraceElement[] elBlockedThread = eBlockedThread.getStackTrace();
              sb.append(
                  "\n\n    "
                      + e.getThreadName()
                      + "\n"
                      + " "
                      + " Thread id = "
                      + eBlockedThread.getThreadId()
                      + " "
                      + eBlockedThread.getThreadState());

              if (elBlockedThread == null || elBlockedThread.length == 0) {
                sb.append("        no stack trace available");
              } else {
                for (int n = 0; n < elBlockedThread.length; n++) {
                  if (n != 0) sb.append("\n");

                  StackTraceElement frame = elBlockedThread[n];

                  if (frame == null) {
                    sb.append("        null stack frame");
                    continue;
                  }

                  sb.append("        ");
                  sb.append(frame.toString());
                }
              }
            }

            if (el == null || el.length == 0) {
              sb.append("    no stack trace available");
              continue;
            }

            for (int n = 0; n < el.length; n++) {
              if (n != 0) sb.append("\n");

              StackTraceElement frame = el[n];

              if (frame == null) {
                sb.append("    null stack frame");
                continue;
              }

              sb.append("    ");
              sb.append(frame.toString());
            }
          } catch (Exception e2) {
          }
        }

        String warningEmailReceiver = CmsPropertyHandler.getWarningEmailReceiver();
        if (warningEmailReceiver != null
            && !warningEmailReceiver.equals("")
            && warningEmailReceiver.indexOf("@warningEmailReceiver@") == -1) {
          try {
            logger.info("Mailing..");
            MailServiceFactory.getService()
                .sendEmail(
                    CmsPropertyHandler.getMailContentType(),
                    warningEmailReceiver,
                    warningEmailReceiver,
                    null,
                    null,
                    null,
                    null,
                    message,
                    sb.toString().replaceAll("\n", "<br/>"),
                    "utf-8");
          } catch (Exception e) {
            logger.error("Could not send mail:" + e.getMessage(), e);
          }
        }
      } catch (Throwable e) {
        logger.error("Error generating message:" + e.getMessage(), e);
      }
    }

    // Only sends if the last stack was sent more than 3 seconds ago.
    if ((now - lastSentTimer) > 10000) {
      lastSentTimer = System.currentTimeMillis();

      StackTraceElement[] el = targetThread.getStackTrace();

      ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
      long stopTimeInNs = threadMXBean.getThreadUserTime(targetThread.getId());
      long diff = (stopTimeInNs - startTimeInNs) / 1000000000;

      StringBuffer stackString = new StringBuffer("\n\n" + message + "\n\n");
      stackString.append("ServerName: " + getServerName() + "\n");
      stackString.append("Maximum memory (MB): " + (maxMemory / 1024 / 1024) + "\n");
      stackString.append("Used memory (MB): " + ((totalMemory - freeMemory) / 1024 / 1024) + "\n");
      stackString.append("Free memory (MB): " + (freeMemory / 1024 / 1024) + "\n");
      stackString.append("Total memory (MB): " + (totalMemory / 1024 / 1024) + "\n");
      stackString.append("Number of current requests: " + numberOfCurrentRequests + "\n");
      stackString.append("Number of active requests: " + numberOfActiveRequests + "\n");
      stackString.append("Number of long requests: " + longThreadMonitorsSize + "\n");
      stackString.append("Current thread time: " + diff + " seconds\n");
      stackString.append(
          "Average time: " + RequestAnalyser.getRequestAnalyser().getAverageElapsedTime() + "\n");
      stackString.append(
          "Longest time: " + RequestAnalyser.getRequestAnalyser().getMaxElapsedTime() + "\n");
      stackString.append("Original url: " + getOriginalFullURL() + "\n");
      stackString.append("UserInfo: " + getUserInfo() + "\n");
      stackString.append("--------------------------------------------\n\n");
      stackString.append("Thread with id [" + targetThread.getId() + "] at report time:\n");

      if (el != null && el.length != 0) {
        for (int j = 0; j < el.length; j++) {
          StackTraceElement frame = el[j];
          if (frame == null) stackString.append("    null stack frame" + "\n");
          else stackString.append("    ").append(frame.toString()).append("\n");

          // if((stackString.indexOf("infoglue") > -1 && j > 20) || j > 35)
          //	break;
        }
      }

      if (targetThread.getState().equals(State.BLOCKED)) {
        ThreadMXBean t = ManagementFactory.getThreadMXBean();

        ThreadInfo e = t.getThreadInfo(targetThread.getId(), 40);
        stackString.append(
            "\n\nBlocked info: "
                + e.getBlockedCount()
                + ":"
                + e.getBlockedTime()
                + ":"
                + e.getLockName()
                + ":"
                + e.getLockOwnerId()
                + ":"
                + e.getLockOwnerName()
                + "\n"
                + " "
                + " Thread id = "
                + e.getThreadId()
                + " "
                + e.getThreadState());

        ThreadInfo eBlockedThread = t.getThreadInfo(e.getLockOwnerId(), 40);
        StackTraceElement[] elBlockedThread = eBlockedThread.getStackTrace();
        stackString.append(
            "\n\nBlocked thread: "
                + e.getThreadName()
                + "\n"
                + " "
                + " Thread id = "
                + eBlockedThread.getThreadId()
                + " "
                + eBlockedThread.getThreadState());

        if (elBlockedThread == null || elBlockedThread.length == 0) {
          stackString.append("        no stack trace available");
        } else {
          for (int n = 0; n < elBlockedThread.length; n++) {
            if (n != 0) stackString.append("\n");

            StackTraceElement frame = elBlockedThread[n];

            if (frame == null) {
              stackString.append("        null stack frame");
              continue;
            }

            stackString.append("        ");
            stackString.append(frame.toString());
          }
        }
      }

      stackString.append(
          "\n\n**********************************\nConcurrent long threads (Only an excerpt of all)\n**********************************");

      ThreadMXBean t = ManagementFactory.getThreadMXBean();

      List threadMonitors = RequestAnalyser.getLongThreadMonitors();
      Iterator threadMonitorsIterator = threadMonitors.iterator();
      int threadCount = 0;
      while (threadMonitorsIterator.hasNext() && threadCount < 5) {
        SimpleThreadMonitor tm = (SimpleThreadMonitor) threadMonitorsIterator.next();

        if (targetThread.getId() == tm.getThreadId()) continue;

        long threads[] = {tm.getThreadId()};
        ThreadInfo[] tinfo = t.getThreadInfo(threads, 40);

        stackString
            .append("\n\n---------------------------------\nConcurrent long thread [")
            .append(tm.getThreadId())
            .append("]:\n");
        stackString
            .append("Elapsed time:")
            .append(tm.getElapsedTime())
            .append("\n Thread id: ")
            .append(tm.getThreadId())
            .append("\n Original url: ")
            .append(tm.getOriginalFullURL())
            .append(")");

        for (int i = 0; i < tinfo.length; i++) {
          ThreadInfo e = tinfo[i];

          el = e.getStackTrace();

          if (el != null && el.length != 0) {
            for (int n = 0; n < el.length; n++) {
              StackTraceElement frame = el[n];
              if (frame == null) stackString.append("    null stack frame\n");
              else stackString.append("    null stack frame").append(frame.toString()).append("\n");
            }
          }
        }

        threadCount++;
      }

      logger.warn(stackString);
    } else {
      logger.warn(
          "A thread took to long but the system seems to be really clogged so we don't send this one.");
    }
  }