001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar 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     * Sonar 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
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.batch.bootstrap;
021    
022    import org.apache.commons.lang.ArrayUtils;
023    import org.apache.commons.lang.StringUtils;
024    import org.sonar.api.BatchComponent;
025    import org.sonar.api.CoreProperties;
026    import org.sonar.api.ExtensionProvider;
027    import org.sonar.api.Plugin;
028    import org.sonar.api.batch.AbstractCoverageExtension;
029    import org.sonar.api.batch.CoverageExtension;
030    import org.sonar.api.batch.InstantiationStrategy;
031    import org.sonar.api.config.Settings;
032    import org.sonar.api.resources.Java;
033    import org.sonar.api.resources.Project;
034    import org.sonar.batch.bootstrapper.EnvironmentInformation;
035    import org.sonar.batch.config.ProjectSettings;
036    
037    import java.util.List;
038    import java.util.Map;
039    
040    public final class ProjectExtensionInstaller implements BatchComponent {
041    
042      private BatchPluginRepository pluginRepository;
043      private EnvironmentInformation environment;
044      private DryRun dryRun;
045      private Project project;
046      private ProjectSettings settings;
047    
048      public ProjectExtensionInstaller(BatchPluginRepository pluginRepository, EnvironmentInformation environment, DryRun dryRun, Project project, ProjectSettings settings) {
049        this.pluginRepository = pluginRepository;
050        this.environment = environment;
051        this.dryRun = dryRun;
052        this.project = project;
053        this.settings = settings;
054      }
055    
056      public void install(Module module) {
057        for (Map.Entry<String, Plugin> entry : pluginRepository.getPluginsByKey().entrySet()) {
058          for (Object extension : entry.getValue().getExtensions()) {
059            installExtension(module, extension, entry.getKey());
060          }
061        }
062        installExtensionProviders(module);
063      }
064    
065      void installExtensionProviders(Module module) {
066        List<ExtensionProvider> providers = module.getComponents(ExtensionProvider.class);
067        for (ExtensionProvider provider : providers) {
068          Object obj = provider.provide();
069          if (obj instanceof Iterable) {
070            for (Object extension : (Iterable) obj) {
071              installExtension(module, extension, "");
072            }
073          } else {
074            installExtension(module, obj, "");
075          }
076        }
077      }
078    
079      private Object installExtension(Module module, Object extension, String pluginKey) {
080        if (ExtensionUtils.isBatchExtension(extension) &&
081            ExtensionUtils.isSupportedEnvironment(extension, environment) &&
082            ExtensionUtils.isInstantiationStrategy(extension, InstantiationStrategy.PER_PROJECT) &&
083            ExtensionUtils.checkDryRun(extension, dryRun.isEnabled()) &&
084            !isDeactivatedCoverageExtension(extension, pluginKey, project, settings) &&
085            !isMavenExtensionOnEmulatedMavenProject(extension, project)) {
086          module.addCoreSingleton(extension);
087          return extension;
088        }
089        return null;
090      }
091    
092      /**
093       * Special use-case: the extension point ProjectBuilder is used in a Maven environment to define some
094       * new sub-projects without pom.
095       * Example : C# plugin adds sub-projects at runtime, even if they are not defined in root pom.
096       */
097      static boolean isMavenExtensionOnEmulatedMavenProject(Object extension, Project project) {
098        return ExtensionUtils.isMavenExtensionOnly(extension) && project.getPom() == null;
099      }
100    
101      /**
102       * TODO this code is specific to Java projects and should be moved somewhere else
103       */
104      static boolean isDeactivatedCoverageExtension(Object extension, String pluginKey, Project project, Settings settings) {
105        if (!ExtensionUtils.isType(extension, CoverageExtension.class)) {
106          return false;
107        }
108    
109        if (!project.getAnalysisType().isDynamic(true)) {
110          // not dynamic and not reuse reports
111          return true;
112        }
113    
114        if (StringUtils.equals(project.getLanguageKey(), Java.KEY)) {
115          String[] selectedPluginKeys = settings.getStringArray(CoreProperties.CORE_COVERAGE_PLUGIN_PROPERTY);
116          if (ArrayUtils.isEmpty(selectedPluginKeys)) {
117            selectedPluginKeys = new String[]{AbstractCoverageExtension.DEFAULT_PLUGIN};
118          }
119          return !ArrayUtils.contains(selectedPluginKeys, pluginKey);
120        }
121        return false;
122      }
123    }