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     */
020    package org.sonar.xoo.lang;
021    
022    import com.google.common.base.Splitter;
023    import org.apache.commons.io.FileUtils;
024    import org.apache.commons.lang.StringUtils;
025    import org.slf4j.Logger;
026    import org.slf4j.LoggerFactory;
027    import org.sonar.api.batch.fs.FilePredicates;
028    import org.sonar.api.batch.fs.FileSystem;
029    import org.sonar.api.batch.fs.InputFile;
030    import org.sonar.api.batch.sensor.Sensor;
031    import org.sonar.api.batch.sensor.SensorContext;
032    import org.sonar.api.batch.sensor.SensorDescriptor;
033    import org.sonar.xoo.Xoo;
034    
035    import java.io.File;
036    import java.io.IOException;
037    import java.util.Iterator;
038    import java.util.List;
039    
040    /**
041     * Parse files *.xoo.deps
042     */
043    public class DependencySensor implements Sensor {
044    
045      private static final Logger LOG = LoggerFactory.getLogger(DependencySensor.class);
046    
047      private static final String DEPS_EXTENSION = ".deps";
048    
049      private void processDependencies(InputFile inputFile, SensorContext context) {
050        File ioFile = inputFile.file();
051        File depsFile = new File(ioFile.getParentFile(), ioFile.getName() + DEPS_EXTENSION);
052        if (depsFile.exists()) {
053          LOG.debug("Processing " + depsFile.getAbsolutePath());
054          try {
055            List<String> lines = FileUtils.readLines(depsFile, context.fileSystem().encoding().name());
056            int lineNumber = 0;
057            for (String line : lines) {
058              lineNumber++;
059              if (StringUtils.isBlank(line) || line.startsWith("#")) {
060                continue;
061              }
062              processLine(depsFile, lineNumber, context, line, inputFile);
063            }
064          } catch (IOException e) {
065            throw new IllegalStateException(e);
066          }
067        }
068      }
069    
070      private void processLine(File coverPerTest, int lineNumber, SensorContext context, String line, InputFile file) {
071        try {
072          Iterator<String> split = Splitter.on(":").split(line).iterator();
073          String otherFileRelativePath = split.next();
074          FileSystem fs = context.fileSystem();
075          InputFile otherFile = fs.inputFile(fs.predicates().hasRelativePath(otherFileRelativePath));
076          if (otherFile == null) {
077            throw new IllegalStateException("Unable to find file " + otherFileRelativePath);
078          }
079          int weight = Integer.parseInt(split.next());
080          context.newDependency()
081            .from(file)
082            .to(otherFile)
083            .weight(weight)
084            .save();
085        } catch (Exception e) {
086          throw new IllegalStateException("Error processing line " + lineNumber + " of file " + coverPerTest.getAbsolutePath(), e);
087        }
088      }
089    
090      @Override
091      public void describe(SensorDescriptor descriptor) {
092        descriptor
093          .name("Xoo Dependency Sensor")
094          .workOnLanguages(Xoo.KEY)
095          .workOnFileTypes(InputFile.Type.MAIN);
096      }
097    
098      @Override
099      public void execute(SensorContext context) {
100        FileSystem fs = context.fileSystem();
101        FilePredicates p = fs.predicates();
102        for (InputFile file : fs.inputFiles(p.and(p.hasLanguages(Xoo.KEY), p.hasType(InputFile.Type.MAIN)))) {
103          processDependencies(file, context);
104        }
105      }
106    }