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/*
* SonarQube Java
* Copyright (C) 2012 SonarSource
* [email protected]
*
* 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 02
*/
package org.sonar.java;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Joiner;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.sonar.api.resources.InputFile;
import org.sonar.api.resources.InputFileUtils;
import org.sonar.api.utils.TimeProfiler;
import org.sonar.graph.DirectedGraph;
import org.sonar.graph.DirectedGraphAccessor;
import org.sonar.java.ast.AstScanner;
import org.sonar.java.ast.visitors.FileLinesVisitor;
import org.sonar.java.ast.visitors.SemanticModelVisitor;
import org.sonar.java.ast.visitors.SonarSymbolTableVisitor;
import org.sonar.java.ast.visitors.SyntaxHighlighterVisitor;
import org.sonar.java.bytecode.BytecodeScanner;
import org.sonar.java.bytecode.visitor.DITVisitor;
import org.sonar.java.bytecode.visitor.DependenciesVisitor;
import org.sonar.java.bytecode.visitor.LCOM4Visitor;
import org.sonar.java.bytecode.visitor.NOCVisitor;
import org.sonar.java.bytecode.visitor.RFCVisitor;
import org.sonar.java.model.VisitorsBridge;
import org.sonar.squid.api.CodeVisitor;
import org.sonar.squid.api.Query;
import org.sonar.squid.api.SourceCode;
import org.sonar.squid.api.SourceCodeEdge;
import org.sonar.squid.api.SourceCodeSearchEngine;
import org.sonar.squid.indexer.QueryByType;
import org.sonar.squid.indexer.SquidIndex;
import javax.annotation.Nullable;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Set;
public class JavaSquid implements DirectedGraphAccessor, SourceCodeSearchEngine {
private static final Logger LOG = LoggerFactory.getLogger(JavaSquid.class);
private final SquidIndex squidIndex;
private final AstScanner astScanner;
private final BytecodeScanner bytecodeScanner;
private final DirectedGraph graph = new DirectedGraph();
private boolean bytecodeScanned = false;
@VisibleForTesting
public JavaSquid(JavaConfiguration conf, CodeVisitor... visitors) {
this(conf, null, visitors);
}
public JavaSquid(JavaConfiguration conf, @Nullable SonarComponents sonarComponents, CodeVisitor... visitors) {
SemanticModelVisitor semanticModelVisitor = new SemanticModelVisitor();
astScanner = JavaAstScanner.create(conf, semanticModelVisitor);
if (sonarComponents != null) {
astScanner.accept(new FileLinesVisitor(sonarComponents.getFileLinesContextFactory(), conf.getCharset()));
astScanner.accept(new SyntaxHighlighterVisitor(sonarComponents.getResourcePerspectives(), conf.getCharset()));
astScanner.accept(new SonarSymbolTableVisitor(sonarComponents.getResourcePerspectives(), semanticModelVisitor));
VisitorsBridge visitorsBridge = new VisitorsBridge(sonarComponents.getResourcePerspectives(), Iterables.concat(
sonarComponents.createJavaFileScanners(),
Arrays.asList(visitors)
));
visitorsBridge.setSemanticModelProvider(semanticModelVisitor);
astScanner.accept(visitorsBridge);
}
// TODO unchecked cast
squidIndex = (SquidIndex) astScanner.getIndex();
bytecodeScanner = new BytecodeScanner(squidIndex);
bytecodeScanner.accept(new DITVisitor());
bytecodeScanner.accept(new RFCVisitor());
bytecodeScanner.accept(new NOCVisitor());
bytecodeScanner.accept(new LCOM4Visitor(conf.getFieldsToExcludeFromLcom4Calculation()));
bytecodeScanner.accept(new DependenciesVisitor(graph));
// External visitors (typically Check ones):
for (CodeVisitor visitor : visitors) {
if (visitor instanceof CharsetAwareVisitor) {
((CharsetAwareVisitor) visitor).setCharset(conf.getCharset());
}
if (visitor instanceof SemanticModelProviderAwareVisitor) {
((SemanticModelProviderAwareVisitor) visitor).setSemanticModelProvider(semanticModelVisitor);
}
astScanner.accept(visitor);
bytecodeScanner.accept(visitor);
}
}
@VisibleForTesting
public void scanDirectories(Collection sourceDirectories, Collection bytecodeFilesOrDirectories) {
List sourceFiles = Lists.newArrayList();
for (File dir : sourceDirectories) {
sourceFiles.addAll(InputFileUtils.create(dir, FileUtils.listFiles(dir, new String[] {"java"}, true)));
}
scan(sourceFiles, bytecodeFilesOrDirectories);
}
public void scan(Collection sourceFiles, Collection bytecodeFilesOrDirectories) {
scanSources(sourceFiles);
scanBytecode(bytecodeFilesOrDirectories);
}
private void scanSources(Collection sourceFiles) {
TimeProfiler profiler = new TimeProfiler(getClass()).start("Java AST scan");
astScanner.scan(sourceFiles);
profiler.stop();
}
private void scanBytecode(Collection bytecodeFilesOrDirectories) {
if (hasBytecode(bytecodeFilesOrDirectories)) {
TimeProfiler profiler = new TimeProfiler(getClass()).start("Java bytecode scan");
bytecodeScanner.scan(bytecodeFilesOrDirectories);
bytecodeScanned = true;
profiler.stop();
} else {
LOG.warn("Java bytecode has not been made available to the analyzer. The " + Joiner.on(", ").join(bytecodeScanner.getVisitors()) + " are disabled.");
bytecodeScanned = false;
}
}
static boolean hasBytecode(Collection bytecodeFilesOrDirectories) {
if (bytecodeFilesOrDirectories == null) {
return false;
}
for (File bytecodeFilesOrDirectory : bytecodeFilesOrDirectories) {
if (bytecodeFilesOrDirectory.exists() &&
(bytecodeFilesOrDirectory.isFile() ||
!FileUtils.listFiles(bytecodeFilesOrDirectory, new String[] {"class"}, true).isEmpty())) {
return true;
}
}
return false;
}
public boolean isBytecodeScanned() {
return bytecodeScanned;
}
public SquidIndex getIndex() {
return squidIndex;
}
public DirectedGraph getGraph() {
return graph;
}
@Override
public SourceCodeEdge getEdge(SourceCode from, SourceCode to) {
return graph.getEdge(from, to);
}
@Override
public boolean hasEdge(SourceCode from, SourceCode to) {
return graph.hasEdge(from, to);
}
@Override
public Set getVertices() {
return graph.getVertices();
}
@Override
public Collection getOutgoingEdges(SourceCode from) {
return graph.getOutgoingEdges(from);
}
@Override
public Collection getIncomingEdges(SourceCode to) {
return graph.getIncomingEdges(to);
}
public List getEdges(Collection sourceCodes) {
return graph.getEdges(sourceCodes);
}
public Collection search(QueryByType queryByType) {
return squidIndex.search(queryByType);
}
@Override
public SourceCode search(String key) {
return squidIndex.search(key);
}
@Override
public Collection search(Query... query) {
return squidIndex.search(query);
}
}
