001/*
002 * SonarQube, open source software quality management tool.
003 * Copyright (C) 2008-2014 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * SonarQube is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * SonarQube is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019 */
020package org.sonar.api.batch;
021
022import com.google.common.collect.Lists;
023import org.apache.maven.artifact.DependencyResolutionRequiredException;
024import org.apache.maven.project.MavenProject;
025import org.sonar.api.BatchComponent;
026import org.sonar.api.utils.SonarException;
027
028import java.io.File;
029import java.net.MalformedURLException;
030import java.net.URL;
031import java.net.URLClassLoader;
032import java.util.List;
033
034/**
035 * @since 2.2
036 * @deprecated since 4.5 this is some Java specific stuff that should by handled by SQ Java plugin
037 */
038@Deprecated
039public class ProjectClasspath implements BatchComponent {
040
041  protected MavenProject pom;
042  private List<File> elements;
043  private URLClassLoader classloader;
044
045  public ProjectClasspath(MavenProject pom) {
046    this.pom = pom;
047  }
048
049  public URLClassLoader getClassloader() {
050    if (classloader == null) {
051      classloader = createClassLoader();
052    }
053    return classloader;
054  }
055
056  /**
057   * bytecode directory + JARs (dependencies)
058   */
059  public List<File> getElements() {
060    if (elements == null) {
061      elements = createElements();
062    }
063    return elements;
064  }
065
066  protected URLClassLoader createClassLoader() {
067    try {
068      List<URL> urls = Lists.newArrayList();
069      for (File file : getElements()) {
070        urls.add(file.toURI().toURL());
071      }
072      return new URLClassLoader(urls.toArray(new URL[urls.size()]), null);
073
074    } catch (MalformedURLException e) {
075      throw new SonarException("Fail to create the project classloader. Classpath element is unvalid.", e);
076    }
077  }
078
079  protected List<File> createElements() {
080    try {
081      List<File> files = Lists.newArrayList();
082      if (pom.getCompileClasspathElements() != null) {
083        for (String classPathString : (List<String>) pom.getCompileClasspathElements()) {
084          files.add(new File(classPathString));
085        }
086      }
087
088      if (pom.getBuild().getOutputDirectory() != null) {
089        File outputDirectoryFile = new File(pom.getBuild().getOutputDirectory());
090        if (outputDirectoryFile.exists()) {
091          files.add(outputDirectoryFile);
092        }
093      }
094      return files;
095    } catch (DependencyResolutionRequiredException e) {
096      throw new SonarException("Fail to create the project classloader", e);
097    }
098  }
099}