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/* |
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* Copyright 2002-2008 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.springframework.web.context.support; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.springframework.context.ApplicationEvent; |
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import org.springframework.context.ApplicationListener; |
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import org.springframework.util.ResponseTimeMonitorImpl; |
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/** |
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* Listener that logs the response times of web requests. |
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* To be registered as bean in a WebApplicationContext. |
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* |
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* <p>Logs performance statistics using Commons Logging at "trace" level. |
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* |
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* @author Rod Johnson |
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* @author Juergen Hoeller |
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* @since January 21, 2001 |
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* @see RequestHandledEvent |
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* @deprecated as of Spring 2.5, to be removed in Spring 3.0. |
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* Use a custom ApplicationListener specific to your needs instead. |
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*/ |
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public class PerformanceMonitorListener implements ApplicationListener { |
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protected final Log logger = LogFactory.getLog(getClass()); |
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protected final ResponseTimeMonitorImpl responseTimeMonitor = new ResponseTimeMonitorImpl(); |
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public void onApplicationEvent(ApplicationEvent event) { |
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if (event instanceof RequestHandledEvent) { |
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RequestHandledEvent rhe = (RequestHandledEvent) event; |
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this.responseTimeMonitor.recordResponseTime(rhe.getProcessingTimeMillis()); |
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if (logger.isTraceEnabled()) { |
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logger.trace("PerformanceMonitorListener: last=[" + rhe.getProcessingTimeMillis() + "ms]; " + |
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this.responseTimeMonitor + "; " + rhe.getShortDescription()); |
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} |
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} |
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} |
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} |
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