guru.nidi.maven.tools.MavenClasspathUtil Maven / Gradle / Ivy

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/*
 * Copyright (C) 2014 Stefan Niederhauser ([email protected])
 *
 * 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.
 */
package guru.nidi.maven.tools;

import org.apache.maven.plugin.MojoExecutionException;
import org.codehaus.classworlds.ClassRealm;
import org.codehaus.classworlds.ClassWorld;

import java.io.File;
import java.util.List;

/**
 *
 */
class MavenClasspathUtil {
    private MavenClasspathUtil() {
    }

    public static void extendPluginClasspath(List elements) throws MojoExecutionException {
        ClassWorld world = new ClassWorld();
        try {
            ClassRealm realm = world.newRealm("maven", Thread.currentThread().getContextClassLoader());
            for (String element : elements) {
                File elementFile = new File(element);
                realm.addConstituent(elementFile.toURI().toURL());
            }
            Thread.currentThread().setContextClassLoader(realm.getClassLoader());
        } catch (Exception ex) {
            throw new MojoExecutionException(ex.toString(), ex);
        }
    }
}