All Downloads are FREE. Search and download functionalities are using the official Maven repository.

ch.qos.logback.core.status.ViewStatusMessagesServletBase Maven / Gradle / Ivy

The newest version!
/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2009, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.status;

import static ch.qos.logback.core.CoreConstants.LINE_SEPARATOR;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.helpers.Transform;

abstract public class ViewStatusMessagesServletBase extends HttpServlet {

  private static final long serialVersionUID = -3551928133801157219L;
  private static SimpleDateFormat SDF = new SimpleDateFormat(
      "yyyy-MM-dd HH:mm:ss");

  protected abstract StatusManager getStatusManager(HttpServletRequest req, HttpServletResponse resp);

  protected abstract String getPageTitle(HttpServletRequest req, HttpServletResponse resp);

  int count;

  protected void service(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {

    System.out.println("service called");
    count = 0;
    StatusManager sm = getStatusManager(req, resp);

    resp.setContentType("text/html");
    PrintWriter output = resp.getWriter();

    output.append("\r\n");
    output.append("\r\n");
    printCSS(req.getContextPath(), output);
    output.append("\r\n");
    output.append("\r\n");
    output.append(getPageTitle(req, resp));

    output.append("");
    StringBuilder buf = new StringBuilder();
    if(sm != null) {
      printList(buf, sm);
    } else {
      output.append("Could not find status manager");
    }
    output.append(buf);
    output.append("
"); output.append("\r\n"); output.append("\r\n"); output.flush(); output.close(); } public void printCSS(String localRef, PrintWriter output) { output.append(" \r\n"); } public void printList(StringBuilder buf, StatusManager sm) { buf.append("\r\n"); printHeader(buf); List statusList = sm.getCopyOfStatusList(); for (Status s : statusList) { count++; printStatus(buf, s); } buf.append("
\r\n"); } public void printHeader(StringBuilder buf) { buf.append(" \r\n"); buf.append(" Date \r\n"); buf.append(" Level\r\n"); buf.append(" Origin\r\n"); buf.append(" Message\r\n"); buf.append(" \r\n"); } String statusLevelAsString(Status s) { switch (s.getEffectiveLevel()) { case Status.INFO: return "INFO"; case Status.WARN: return "WARN"; case Status.ERROR: return "ERROR"; } return null; } String abbreviatedOrigin(Status s) { Object o = s.getOrigin(); if (o == null) { return null; } String fqClassName = o.getClass().getName(); int lastIndex = fqClassName.lastIndexOf(CoreConstants.DOT); if (lastIndex != -1) { return fqClassName.substring(lastIndex + 1, fqClassName.length()); } else { return fqClassName; } } private void printStatus(StringBuilder buf, Status s) { String trClass; if (count % 2 == 0) { trClass = "even"; } else { trClass = "odd"; } buf.append(" \r\n"); String dateStr = SDF.format(s.getDate()); buf.append(" ").append(dateStr).append("\r\n"); buf.append(" ").append(statusLevelAsString(s)) .append("\r\n"); buf.append(" ").append(abbreviatedOrigin(s)).append("\r\n"); buf.append(" ").append(s.getMessage()).append("\r\n"); buf.append(" \r\n"); if (s.getThrowable() != null) { printThrowable(buf, s.getThrowable()); } } private void printThrowable(StringBuilder buf, Throwable t) { buf.append(" \r\n"); buf.append("
");
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    t.printStackTrace(pw);
    buf.append(Transform.escapeTags(sw.getBuffer()));
    buf.append("    
\r\n"); buf.append(" \r\n"); } }




© 2015 - 2025 Weber Informatics LLC | Privacy Policy