1/*******************************************************************************
2 * Copyright (c) 2009, 2015 Mountainminds GmbH & Co. KG and Contributors
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 *    Brock Janiczak - initial API and implementation
10 *
11 *******************************************************************************/
12package org.jacoco.ant;
13
14import org.apache.tools.ant.BuildException;
15
16/**
17 * Ant task that will unpack the coverage agent jar and generate the JVM options
18 * required to use it
19 */
20public class AgentTask extends AbstractCoverageTask {
21
22	private String property;
23
24	/**
25	 * Sets the name of the property to hold the agent JVM options
26	 *
27	 * @param property
28	 *            Name of the property to be populated
29	 */
30	public void setProperty(final String property) {
31		this.property = property;
32	}
33
34	/**
35	 * Unpacks a private copy of the JaCoCo agent and populates
36	 * <code>property</code> with the JVM arguments required to use it. The
37	 * value set into the property is only valid for the lifetime of the current
38	 * JVM. The agent jar will be removed on termination of the JVM.
39	 */
40	@Override
41	public void execute() throws BuildException {
42		if (property == null || property.length() == 0) {
43			throw new BuildException("Property is mandatory", getLocation());
44		}
45		final String jvmArg = isEnabled() ? getLaunchingArgument() : "";
46
47		getProject().setNewProperty(property, jvmArg);
48	}
49}
50