| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| package com.opensymphony.xwork2.interceptor; |
| |
| import com.opensymphony.xwork2.ActionInvocation; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| |
| |
| /** |
| * <!-- START SNIPPET: description --> |
| * <p> |
| * This interceptor logs the start and end of the execution an action (in English-only, not internationalized). |
| * <br> |
| * <b>Note:</b>: This interceptor will log at <tt>INFO</tt> level. |
| * </p> |
| * <!-- END SNIPPET: description --> |
| * |
| * <!-- START SNIPPET: parameters --> |
| * There are no parameters for this interceptor. |
| * <!-- END SNIPPET: parameters --> |
| * |
| * <!-- START SNIPPET: extending --> |
| * There are no obvious extensions to the existing interceptor. |
| * <!-- END SNIPPET: extending --> |
| * |
| * <pre> |
| * <!-- START SNIPPET: example --> |
| * <!-- prints out a message before and after the immediate action execution --> |
| * <action name="someAction" class="com.examples.SomeAction"> |
| * <interceptor-ref name="completeStack"/> |
| * <interceptor-ref name="logger"/> |
| * <result name="success">good_result.ftl</result> |
| * </action> |
| * |
| * <!-- prints out a message before any more interceptors continue and after they have finished --> |
| * <action name="someAction" class="com.examples.SomeAction"> |
| * <interceptor-ref name="logger"/> |
| * <interceptor-ref name="completeStack"/> |
| * <result name="success">good_result.ftl</result> |
| * </action> |
| * <!-- END SNIPPET: example --> |
| * </pre> |
| * |
| * @author Jason Carreira |
| */ |
| public class LoggingInterceptor extends AbstractInterceptor { |
| private static final Logger LOG = LogManager.getLogger(LoggingInterceptor.class); |
| private static final String FINISH_MESSAGE = "Finishing execution stack for action "; |
| private static final String START_MESSAGE = "Starting execution stack for action "; |
| |
| @Override |
| public String intercept(ActionInvocation invocation) throws Exception { |
| logMessage(invocation, START_MESSAGE); |
| String result = invocation.invoke(); |
| logMessage(invocation, FINISH_MESSAGE); |
| return result; |
| } |
| |
| private void logMessage(ActionInvocation invocation, String baseMessage) { |
| if (LOG.isInfoEnabled()) { |
| StringBuilder message = new StringBuilder(baseMessage); |
| String namespace = invocation.getProxy().getNamespace(); |
| |
| if ((namespace != null) && (namespace.trim().length() > 0)) { |
| message.append(namespace).append("/"); |
| } |
| |
| message.append(invocation.getProxy().getActionName()); |
| LOG.info(message.toString()); |
| } |
| } |
| |
| } |