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/*
* SonarQube :: Batch
* Copyright (C) 2009-2016 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.batch.cpd;
import com.google.common.collect.Lists;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.List;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.sonar.api.CoreProperties;
import org.sonar.api.batch.fs.FilePredicates;
import org.sonar.api.batch.fs.FileSystem;
import org.sonar.api.batch.fs.InputFile;
import org.sonar.api.batch.fs.internal.DefaultInputFile;
import org.sonar.api.config.Settings;
import org.sonar.batch.cpd.index.SonarDuplicationsIndex;
import org.sonar.duplications.block.Block;
import org.sonar.duplications.block.BlockChunker;
import org.sonar.duplications.java.JavaStatementBuilder;
import org.sonar.duplications.java.JavaTokenProducer;
import org.sonar.duplications.statement.Statement;
import org.sonar.duplications.statement.StatementChunker;
import org.sonar.duplications.token.TokenChunker;
public class JavaCpdIndexer extends CpdIndexer {
private static final Logger LOG = LoggerFactory.getLogger(JavaCpdIndexer.class);
private static final int BLOCK_SIZE = 10;
private final FileSystem fs;
private final Settings settings;
private final SonarDuplicationsIndex index;
public JavaCpdIndexer(FileSystem fs, Settings settings, SonarDuplicationsIndex index) {
this.fs = fs;
this.settings = settings;
this.index = index;
}
@Override
public boolean isLanguageSupported(String language) {
return "java".equals(language);
}
@Override
public void index(String languageKey) {
String[] cpdExclusions = settings.getStringArray(CoreProperties.CPD_EXCLUSIONS);
logExclusions(cpdExclusions, LOG);
FilePredicates p = fs.predicates();
List<InputFile> sourceFiles = Lists.newArrayList(fs.inputFiles(p.and(
p.hasType(InputFile.Type.MAIN),
p.hasLanguage(languageKey),
p.doesNotMatchPathPatterns(cpdExclusions))));
if (sourceFiles.isEmpty()) {
return;
}
createIndex(sourceFiles);
}
private void createIndex(Iterable<InputFile> sourceFiles) {
TokenChunker tokenChunker = JavaTokenProducer.build();
StatementChunker statementChunker = JavaStatementBuilder.build();
BlockChunker blockChunker = new BlockChunker(BLOCK_SIZE);
for (InputFile inputFile : sourceFiles) {
LOG.debug("Populating index from {}", inputFile);
String resourceEffectiveKey = ((DefaultInputFile) inputFile).key();
List<Statement> statements;
Reader reader = null;
try {
reader = new InputStreamReader(new FileInputStream(inputFile.file()), fs.encoding());
statements = statementChunker.chunk(tokenChunker.chunk(reader));
} catch (FileNotFoundException e) {
throw new IllegalStateException("Cannot find file " + inputFile.file(), e);
} finally {
IOUtils.closeQuietly(reader);
}
List<Block> blocks = blockChunker.chunk(resourceEffectiveKey, statements);
index.insert(inputFile, blocks);
}
}
}
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