com.akathist.maven.plugins.launch4j.ClassPath Maven / Gradle / Ivy

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This plugin creates Windows executables from Java jar files using the Launch4j utility.
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/*
 * Maven Launch4j Plugin
 * Copyright (c) 2006 Paul Jungwirth
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package com.akathist.maven.plugins.launch4j;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugins.annotations.Parameter;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;

public class ClassPath {

    /**
     * The main class to run. This is not required if you are wrapping an executable jar.
     */
    @Parameter
    String mainClass;

    /**
     * The launch4j executable sets up a classpath before running your jar, but it must know what the
     * classpath should be. If you set this property to true, the plugin will indicate a classpath
     * based on all the dependencies your program will need at runtime. You can augment this classpath
     * using the preCp and postCp properties.
     */
    @Parameter(defaultValue = "true")
    boolean addDependencies = true;

    /**
     * If you want maven to build the classpath from dependencies, you can optionally set the jarLocation,
     * which is the location of the jars in your distro relative to the executable. So if your distro
     * has the exe at the top level and all the jars in a lib directory, you could set this to "lib."
     * This property does not affect preCp and postCp.
     */
    @Parameter
    String jarLocation;

    /**
     * Part of the classpath that the executable should give to your application.
     * Paths are relative to the executable and should be in Windows format (separated by a semicolon).
     * You don't have to list all your dependencies here; the plugin will include them by default
     * after this list.
     */
    @Parameter
    String preCp;

    /**
     * Part of the classpath that the executable should give to your application.
     * Paths are relative to the executable and should be in Windows format (separated by a semicolon).
     * You don't have to list all your dependencies here; the plugin will include them by default
     * before this list.
     */
    @Parameter
    String postCp;

    private void addToCp(List cp, String cpStr) {
        cp.addAll(Arrays.asList(cpStr.split("\\s*;\\s*")));
    }

    net.sf.launch4j.config.ClassPath toL4j(Set dependencies) {
        net.sf.launch4j.config.ClassPath ret = new net.sf.launch4j.config.ClassPath();
        ret.setMainClass(mainClass);

        List cp = new ArrayList<>();
        if (preCp != null) addToCp(cp, preCp);

        if (addDependencies) {
            if (jarLocation == null) jarLocation = "";
            else if (!jarLocation.endsWith("/")) jarLocation += "/";

            for (Artifact dependency : dependencies) {
                    String depFilename;
                    depFilename = dependency.getFile().getName();
//                  System.out.println("dependency = " + depFilename);
                    cp.add(jarLocation + depFilename);
            }
        }

        if (postCp != null) addToCp(cp, postCp);
        ret.setPaths(cp);

        return ret;
    }

    @Override
    public String toString() {
        return "ClassPath{" +
                "mainClass='" + mainClass + '\'' +
                ", addDependencies=" + addDependencies +
                ", jarLocation='" + jarLocation + '\'' +
                ", preCp='" + preCp + '\'' +
                ", postCp='" + postCp + '\'' +
                '}';
    }

}