001/*
002 * The Apache Software License, Version 1.1
003 *
004 * Copyright (C) 2006 Mark Doliner
005 * Copyright (C) 2006 John Lewis
006 *
007 * Redistribution and use in source and binary forms, with or without
008 * modification, are permitted provided that the following conditions
009 * are met:
010 *
011 * 1. Redistributions of source code must retain the above copyright
012 *    notice, this list of conditions and the following disclaimer.
013 *
014 * 2. Redistributions in binary form must reproduce the above copyright
015 *    notice, this list of conditions and the following disclaimer in
016 *    the documentation and/or other materials provided with the
017 *    distribution.
018 *
019 * 3. The end-user documentation included with the redistribution, if
020 *    any, must include the following acknowlegement:
021 *       "This product includes software developed by the
022 *        Apache Software Foundation (http://www.apache.org/)."
023 *    Alternately, this acknowlegement may appear in the software itself,
024 *    if and wherever such third-party acknowlegements normally appear.
025 *
026 * 4. The names "Ant" and "Apache Software
027 *    Foundation" must not be used to endorse or promote products derived
028 *    from this software without prior written permission. For written
029 *    permission, please contact apache@apache.org.
030 *
031 * 5. Products derived from this software may not be called "Apache"
032 *    nor may "Apache" appear in their names without prior written
033 *    permission of the Apache Group.
034 *
035 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046 * SUCH DAMAGE.
047 * ====================================================================
048 *
049 * This software consists of voluntary contributions made by many
050 * individuals on behalf of the Apache Software Foundation.  For more
051 * information on the Apache Software Foundation, please see
052 * <http://www.apache.org/>.
053 */
054
055package net.sourceforge.cobertura.ant;
056
057import org.apache.tools.ant.taskdefs.Java;
058import org.apache.tools.ant.types.Environment.Variable;
059
060abstract class AntUtil
061{
062
063        /**
064         * Used to transfer the net.sourceforge.cobertura.datafile property to a JVM
065         * that is about to be forked.
066         * 
067         * This is confusing, but it's required by our functional test.
068         * What happens is, we have a JUnit test that runs ant to
069         * instrument some classes.  When the instrumentation is running,
070         * we want to get the coverage info that is created by exercising
071         * our instrumentation classes.
072         *
073         * So we pass in two different coverage files:
074         * 1. The coverage data file command line parameter.  This tells
075         *    the instrument task where to write the new coverage data.
076         * 2. The coverage data system property.  This tells the
077         *    instrumentation inside the instrumented classes where to
078         *    keep track of the line hit counts, etc.
079         *
080         * @param task The Java task that will do the forking.
081         */
082        static void transferCoberturaDataFileProperty(Java task)
083        {
084                String coberturaProperty = System.getProperty("net.sourceforge.cobertura.datafile");
085                if (coberturaProperty != null)
086                {
087                        Variable sysproperty = new Variable();
088                        sysproperty.setKey("net.sourceforge.cobertura.datafile");
089                        sysproperty.setValue(coberturaProperty);
090                        task.addSysproperty(sysproperty);
091                }
092        }
093
094}