001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 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.api.batch;
021    
022    import org.apache.commons.io.FileUtils;
023    import org.sonar.api.CoreProperties;
024    import org.sonar.api.resources.*;
025    import org.sonar.api.utils.SonarException;
026    
027    import java.io.File;
028    import java.nio.charset.Charset;
029    import java.util.List;
030    
031    /**
032     * A pre-implementation for a sensor that imports sources.
033     * It became too much ugly because of extensability. Methods can't be
034     * refactored because they are heavily overridden in plugins.
035     *
036     * @since 1.10
037     */
038    @Phase(name = Phase.Name.PRE)
039    public abstract class AbstractSourceImporter implements Sensor {
040    
041      private Language language;
042      private boolean enabled = false;
043    
044      public AbstractSourceImporter(Language language) {
045        this.language = language;
046      }
047    
048      /**
049       * {@inheritDoc}
050       */
051      public boolean shouldExecuteOnProject(Project project) {
052        return language.equals(project.getLanguage());
053      }
054    
055      /**
056       * {@inheritDoc}
057       */
058      public void analyse(Project project, SensorContext context) {
059        enabled = isEnabled(project);
060        analyse(project.getFileSystem(), context);
061        onFinished();
062      }
063    
064      protected void onFinished() {
065    
066      }
067    
068      protected void analyse(ProjectFileSystem fileSystem, SensorContext context) {
069        parseDirs(context, fileSystem.getSourceFiles(language), fileSystem.getSourceDirs(), false, fileSystem.getSourceCharset());
070        parseDirs(context, fileSystem.getTestFiles(language), fileSystem.getTestDirs(), true, fileSystem.getSourceCharset());
071      }
072    
073      protected void parseDirs(SensorContext context, List<File> files, List<File> sourceDirs, boolean unitTest, Charset sourcesEncoding) {
074        for (File file : files) {
075          Resource resource = createResource(file, sourceDirs, unitTest);
076          if (resource != null) {
077            try {
078              context.index(resource);
079              if (enabled) {
080                String source = FileUtils.readFileToString(file, sourcesEncoding.name());
081                context.saveSource(resource, source);
082              }
083            } catch (Exception e) {
084              throw new SonarException("Unable to read and import the source file : '" + file.getAbsolutePath() + "' with the charset : '"
085                  + sourcesEncoding.name() + "'.", e);
086            }
087          }
088        }
089      }
090    
091      protected Resource createResource(File file, List<File> sourceDirs, boolean unitTest) {
092        org.sonar.api.resources.File resource = org.sonar.api.resources.File.fromIOFile(file, sourceDirs);
093        if (resource != null) {
094          resource.setLanguage(language);
095          if (unitTest) {
096            resource.setQualifier(Qualifiers.UNIT_TEST_FILE);
097          }
098        }
099        return resource;
100      }
101    
102      protected boolean isEnabled(Project project) {
103        return project.getConfiguration().getBoolean(CoreProperties.CORE_IMPORT_SOURCES_PROPERTY,
104            CoreProperties.CORE_IMPORT_SOURCES_DEFAULT_VALUE);
105      }
106    
107      /**
108       * @return the language
109       */
110      public Language getLanguage() {
111        return language;
112      }
113    }