1 package org.apache.turbine.pipeline; 2 3 4 /* 5 * Licensed to the Apache Software Foundation (ASF) under one 6 * or more contributor license agreements. See the NOTICE file 7 * distributed with this work for additional information 8 * regarding copyright ownership. The ASF licenses this file 9 * to you under the Apache License, Version 2.0 (the 10 * "License"); you may not use this file except in compliance 11 * with the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, 16 * software distributed under the License is distributed on an 17 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 18 * KIND, either express or implied. See the License for the 19 * specific language governing permissions and limitations 20 * under the License. 21 */ 22 23 24 import java.io.IOException; 25 26 import org.apache.turbine.TurbineConstants; 27 import org.apache.turbine.util.RunData; 28 import org.apache.turbine.util.TurbineException; 29 30 /** 31 * Implements the RunData target portion of the "Turbine classic" 32 * processing pipeline (from the Turbine 2.x series). 33 * 34 * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> 35 * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> 36 * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a> 37 * @author <a href="mailto:mikeh@apache.org">Mike Haberman</a> 38 * @author <a href="mailto:james@jamestaylor.org">James Taylor</a> 39 * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a> 40 * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> 41 * @version $Id: CleanUpValve.java 1854797 2019-03-04 20:41:39Z tv $ 42 */ 43 public class CleanUpValve 44 implements Valve 45 { 46 /** 47 * Creates a new instance. 48 */ 49 public CleanUpValve() 50 { 51 // empty constructor 52 } 53 54 /** 55 * @see org.apache.turbine.pipeline.Valve#invoke(PipelineData, ValveContext) 56 */ 57 @Override 58 public void invoke(PipelineData pipelineData, ValveContext context) 59 throws IOException, TurbineException 60 { 61 try 62 { 63 cleanUp(pipelineData); 64 } 65 catch (Exception e) 66 { 67 throw new TurbineException(e); 68 } 69 70 // Pass control to the next Valve in the Pipeline 71 context.invokeNext(pipelineData); 72 } 73 74 /** 75 * Perform clean up after processing the request. 76 * 77 * @param pipelineData The run-time data. 78 */ 79 protected void cleanUp(PipelineData pipelineData) 80 { 81 RunData data = pipelineData.getRunData(); 82 // If a module has set data.acl = null, remove acl from 83 // the session. 84 if (data.getACL() == null) 85 { 86 try 87 { 88 data.getSession().removeAttribute 89 (TurbineConstants.ACL_SESSION_KEY); 90 } 91 catch (IllegalStateException invalidatedSession) 92 { 93 // Web was used to shut us down. Trying to clean up 94 // our stuff, but it's already been done for us. 95 } 96 } 97 } 98 }