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Struts example source code file (StrutsVelocityContext.java)
The Struts StrutsVelocityContext.java source code/* * $Id: StrutsVelocityContext.java 651946 2008-04-27 13:41:38Z apetrelli $ * * 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.struts2.views.velocity; import org.apache.velocity.VelocityContext; import com.opensymphony.xwork2.util.ValueStack; /** */ public class StrutsVelocityContext extends VelocityContext { private static final long serialVersionUID = 8497212428904436963L; ValueStack stack; VelocityContext[] chainedContexts; public StrutsVelocityContext(ValueStack stack) { this(null, stack); } public StrutsVelocityContext(VelocityContext[] chainedContexts, ValueStack stack) { this.chainedContexts = chainedContexts; this.stack = stack; } public boolean internalContainsKey(Object key) { boolean contains = super.internalContainsKey(key); // first let's check to see if we contain the requested key if (contains) { return true; } // if not, let's search for the key in the ognl value stack if (stack != null) { Object o = stack.findValue(key.toString()); if (o != null) { return true; } o = stack.getContext().get(key.toString()); if (o != null) { return true; } } // if we still haven't found it, le's search through our chained contexts if (chainedContexts != null) { for (int index = 0; index < chainedContexts.length; index++) { if (chainedContexts[index].containsKey(key)) { return true; } } } // nope, i guess it's really not here return false; } public Object internalGet(String key) { // first, let's check to see if have the requested value if (super.internalContainsKey(key)) { return super.internalGet(key); } // still no luck? let's look against the value stack if (stack != null) { Object object = stack.findValue(key); if (object != null) { return object; } object = stack.getContext().get(key); if (object != null) { return object; } } // finally, if we're chained to other contexts, let's look in them if (chainedContexts != null) { for (int index = 0; index < chainedContexts.length; index++) { if (chainedContexts[index].containsKey(key)) { return chainedContexts[index].internalGet(key); } } } // nope, i guess it's really not here return null; } } Other Struts examples (source code examples)Here is a short list of links related to this Struts StrutsVelocityContext.java source code file: |
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