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Performance statistics logging and monitoring toolkit extension to log4j and the java.util.logging framework.

There is a newer version: 0.9.16

/* Copyright (c) 2008-2009 HomeAway, Inc.
 * All rights reserved.  http://www.perf4j.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Provides the concrete {@link org.perf4j.log4j.servlet.GraphingServlet} class that can be installed in a web.xml
 * file to expose graphs generated by a {@link org.perf4j.log4j.GraphingStatisticsAppender}. The following example
 * web.xml shows how the servlet could be configured:
 *
 *  * <?xml version="1.0" encoding="UTF-8"?>
 *
 * <web-app version="2.4"
 *          xmlns="http://java.sun.com/xml/ns/j2ee"
 *          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 *          xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
 *
 *   <servlet>
 *     <servlet-name>perf4j</servlet-name>
 *     <servlet-class>org.perf4j.servlet.Log4JGraphingServlet</servlet-class>
 *     <!--
 *       The values for the graphNames init param must match the names of the GraphingStatisticsAppenders
 *       as configured in the log4j.xml file.
 *     -->
 *     <init-param>
 *       <param-name>graphNames</param-name>
 *       <param-value>PageTimes,PageTPS</param-value>
 *     </init-param>
 *   </servlet>
 *
 *   <servlet-mapping>
 *     <servlet-name>perf4j</servlet-name>
 *     <url-pattern>/perf4j</url-pattern>
 *   </servlet-mapping>
 * </web-app>
 * 
 */
package org.perf4j.log4j.servlet;