org.codehaus.mojo.exec.test3.Test.java Source code

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Here is the source code for org.codehaus.mojo.exec.test3.Test.java

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package org.codehaus.mojo.exec.test3;

/*
 * Copyright 2005 The Codehaus.
 *
 * 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.
 */

import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;

import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Properties;

/**
 * @author Jerome Lacoste <jerome@coffeebreaks.org>
 * @version $Id$
 * @todo we depend too much on Commandline.toString()
 */
public class Test {
    // test that we can use FileUtils, i.e. that classpath specification works
    // Write to the file specified as args[ 0 ], the following (sorted)
    // * the remaining arguments prefixed with "arg."
    // * the project properties (identified in the System properties by their "project." prefix),
    //   in the form of "key=value"
    public static void main(String[] args) throws Exception {

        if (args.length == 0) {
            throw new IllegalArgumentException("missing output file path");
        }

        List myProperties = new ArrayList();
        for (int i = 0; i < args.length - 1; i++) {
            myProperties.add("arg." + args[i + 1]);
        }

        Properties systemProperties = System.getProperties();
        for (Iterator it = systemProperties.keySet().iterator(); it.hasNext();) {
            String key = it.next().toString();
            if (key.startsWith("project.")) {
                myProperties.add(key + "=" + systemProperties.get(key));
            }
        }
        myProperties.add("user.dir=" + systemProperties.get("user.dir"));
        myProperties.add("java.class.path=" + systemProperties.get("java.class.path"));

        Collections.sort(myProperties);
        File toFile = new File(args[0]);
        toFile.getParentFile().mkdirs();
        FileUtils.writeLines(new File(args[0]), "UTF-8", myProperties);
    }
}