Ant example source code file (SpecialSeq.java)

This example Ant source code file (SpecialSeq.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Ant tags/keywords

buildexception, buildexception, echo, enumeration, fileset, fileset, specialseq, task, task, taskcontainer, util, vector, vector

The SpecialSeq.java source code

/* 
 *  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 test;

import org.apache.tools.ant.Task;
import org.apache.tools.ant.TaskContainer;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.taskdefs.Echo;
import java.util.*;

public class SpecialSeq extends Task implements TaskContainer {
    /** Optional Vector holding the nested tasks */
    private Vector nestedTasks = new Vector();

    private FileSet fileset;
    
    private Echo nestedEcho;
    
    /**
     * Add a nested task.
     * <p>
     * @param nestedTask  Nested task to execute
     * <p>
     */
    public void addTask(Task nestedTask) {
        nestedTasks.addElement(nestedTask);
    }

    /**
     * Execute all nestedTasks.
     */
    public void execute() throws BuildException {
        if (fileset == null || fileset.getDir(getProject()) == null) {
            throw new BuildException("Fileset was not configured");
        }
        for (Enumeration e = nestedTasks.elements(); e.hasMoreElements();) {
            Task nestedTask = (Task) e.nextElement();
            nestedTask.perform();
        }
        nestedEcho.reconfigure();
        nestedEcho.perform();
    }

    public void addFileset(FileSet fileset) {
        this.fileset = fileset;
    }
    
    public void addNested(Echo nestedEcho) {
        this.nestedEcho = nestedEcho;
    }
}