| /* |
| * Copyright 2002,2004 The Apache Software Foundation. |
| * |
| * Licensed 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.commons.jelly.tags.threads; |
| |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.XMLOutput; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Represents a group of threads. This is not the same as Java's thread groups. |
| * All of the threads in a thread group are started at the same time, not as they |
| * are defined. Use this in conjunction with other tags like join to manipulate |
| * a group of threads. |
| * |
| * @author <a href="mailto:jason@jhorman.org">Jason Horman</a> |
| */ |
| |
| public class GroupTag extends TagSupport { |
| /** Variable to place the thread group into */ |
| private String var = null; |
| /** The thread list */ |
| private List threads = new ArrayList(); |
| |
| /** Child threads will add themselves and will then all be started together */ |
| public void doTag(XMLOutput output) throws JellyTagException { |
| invokeBody(output); |
| |
| // store the group in a jelly variable |
| if (var != null) { |
| context.setVariable(var, threads); |
| } |
| |
| // start the threads |
| for (int i = 0; i < threads.size(); i++) { |
| Thread thread = (Thread) threads.get(i); |
| thread.start(); |
| } |
| } |
| |
| /** Add a thread to the thread group list */ |
| public void addThread(Thread thread) { |
| threads.add(thread); |
| } |
| |
| /** Get the list of threads in this thread group */ |
| public List getThreads() { |
| return threads; |
| } |
| |
| /** Set the variable name to store the thread group in */ |
| public void setVar(String var) { |
| this.var = var; |
| } |
| } |