| /* |
| * $Id$ |
| * |
| * 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 org.apache.struts.chain.commands; |
| |
| import java.util.Map; |
| import org.apache.struts.Globals; |
| import org.apache.struts.chain.contexts.ActionContext; |
| import org.apache.struts.action.ActionMessages; |
| |
| /** |
| * <p>Remove cached messages stored in the session.</p> |
| * |
| * @version $Id$ |
| * @see CacheMessages |
| * @since Struts 1.3.5 |
| */ |
| public class RemoveCachedMessages extends ActionCommandBase { |
| |
| /** |
| * <p>Removes any <code>ActionMessages</code> object stored in the session |
| * under <code>Globals.MESSAGE_KEY</code> and <code>Globals.ERROR_KEY</code> |
| * if the messages' <code>isAccessed</code> method returns true. This |
| * allows messages to be stored in the session, displayed one time, and be |
| * released here.</p> |
| * |
| * @param actionCtx The <code>Context</code> for the current request |
| * @return <code>false</code> so that processing continues |
| * @throws Exception on any error |
| */ |
| public boolean execute(ActionContext actionCtx) |
| throws Exception { |
| |
| // Get session scope |
| Map session = actionCtx.getSessionScope(); |
| |
| // Remove messages as needed |
| removeAccessedMessages(session, Globals.MESSAGE_KEY); |
| |
| // Remove error messages as needed |
| removeAccessedMessages(session, Globals.ERROR_KEY); |
| |
| return CONTINUE_PROCESSING; |
| } |
| |
| /** |
| * <p>Removes any <code>ActionMessages</code> object from the specified |
| * scope stored under the specified key if the messages' |
| * <code>isAccessed</code> method returns true. |
| * |
| * @param scope The scope to check for messages in. |
| * @param key The key the messages are stored under. |
| */ |
| private void removeAccessedMessages(Map scope, String key) { |
| ActionMessages messages = (ActionMessages)scope.get(key); |
| if (messages != null && messages.isAccessed()) { |
| scope.remove(key); |
| } |
| } |
| } |