001 package org.apache.turbine.pipeline; 002 003 004 /* 005 * Licensed to the Apache Software Foundation (ASF) under one 006 * or more contributor license agreements. See the NOTICE file 007 * distributed with this work for additional information 008 * regarding copyright ownership. The ASF licenses this file 009 * to you under the Apache License, Version 2.0 (the 010 * "License"); you may not use this file except in compliance 011 * with the License. You may obtain a copy of the License at 012 * 013 * http://www.apache.org/licenses/LICENSE-2.0 014 * 015 * Unless required by applicable law or agreed to in writing, 016 * software distributed under the License is distributed on an 017 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 018 * KIND, either express or implied. See the License for the 019 * specific language governing permissions and limitations 020 * under the License. 021 */ 022 023 024 import java.io.IOException; 025 026 import org.apache.turbine.Turbine; 027 import org.apache.turbine.TurbineConstants; 028 import org.apache.turbine.modules.Action; 029 import org.apache.turbine.modules.ActionLoader; 030 import org.apache.turbine.services.assemblerbroker.TurbineAssemblerBroker; 031 import org.apache.turbine.util.TurbineException; 032 033 /** 034 * Implements the action portion of the "Turbine classic" processing 035 * pipeline (from the Turbine 2.x series). 036 * 037 * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>\ 038 * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> 039 * @version $Id: DefaultSessionValidationValve.java 758254 2009-03-25 13:41:02Z tv $ 040 */ 041 public class DefaultSessionValidationValve 042 extends AbstractValve 043 { 044 private ActionLoader actionLoader; 045 046 public DefaultSessionValidationValve() 047 throws Exception 048 { 049 // empty constructor 050 } 051 052 /** 053 * Initialize this valve for use in a pipeline. 054 * 055 * @see org.apache.turbine.pipeline.AbstractValve#initialize() 056 */ 057 public void initialize() throws Exception 058 { 059 super.initialize(); 060 061 this.actionLoader = (ActionLoader)TurbineAssemblerBroker.getLoader(Action.NAME); 062 } 063 064 /** 065 * @see org.apache.turbine.Valve#invoke(RunData, ValveContext) 066 */ 067 public void invoke(PipelineData pipelineData, ValveContext context) 068 throws IOException, TurbineException 069 { 070 try 071 { 072 // This is where the validation of the Session information 073 // is performed if the user has not logged in yet, then 074 // the screen is set to be Login. This also handles the 075 // case of not having a screen defined by also setting the 076 // screen to Login. If you want people to go to another 077 // screen other than Login, you need to change that within 078 // TurbineResources.properties...screen.homepage; or, you 079 // can specify your own SessionValidator action. 080 actionLoader.exec(pipelineData, 081 Turbine.getConfiguration().getString( 082 TurbineConstants.ACTION_SESSION_VALIDATOR_KEY, 083 TurbineConstants.ACTION_SESSION_VALIDATOR_DEFAULT)); 084 } 085 catch (Exception e) 086 { 087 throw new TurbineException(e); 088 } 089 090 // Pass control to the next Valve in the Pipeline 091 context.invokeNext(pipelineData); 092 } 093 }