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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.model;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.sonar.sslr.api.RecognitionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.sonar.java.CharsetAwareVisitor;
import org.sonar.java.JavaVersionAwareVisitor;
import org.sonar.java.SonarComponents;
import org.sonar.java.ast.visitors.SonarSymbolTableVisitor;
import org.sonar.java.ast.visitors.VisitorContext;
import org.sonar.java.resolve.SemanticModel;
import org.sonar.plugins.java.api.JavaFileScanner;
import org.sonar.plugins.java.api.JavaFileScannerContext;
import org.sonar.plugins.java.api.tree.CompilationUnitTree;
import org.sonar.plugins.java.api.tree.ImportClauseTree;
import org.sonar.plugins.java.api.tree.Tree;
import org.sonar.squidbridge.AstScannerExceptionHandler;
import org.sonar.squidbridge.api.SourceFile;
import javax.annotation.Nullable;
import java.io.File;
import java.nio.charset.Charset;
import java.util.List;
public class InternalVisitorsBridge {
private static final Logger LOG = LoggerFactory.getLogger(InternalVisitorsBridge.class);
private final List scanners;
private final SonarComponents sonarComponents;
private SemanticModel semanticModel;
private List projectClasspath;
private boolean analyseAccessors;
private VisitorContext context;
@Nullable
private Integer javaVersion;
public InternalVisitorsBridge(Iterable visitors, List projectClasspath, @Nullable SonarComponents sonarComponents) {
ImmutableList.Builder scannersBuilder = ImmutableList.builder();
for (Object visitor : visitors) {
if (visitor instanceof JavaFileScanner) {
scannersBuilder.add((JavaFileScanner) visitor);
}
}
this.scanners = scannersBuilder.build();
this.sonarComponents = sonarComponents;
this.projectClasspath = projectClasspath;
}
public void setAnalyseAccessors(boolean analyseAccessors) {
this.analyseAccessors = analyseAccessors;
}
public void setCharset(Charset charset) {
for (JavaFileScanner scanner : scanners) {
if (scanner instanceof CharsetAwareVisitor) {
((CharsetAwareVisitor) scanner).setCharset(charset);
}
}
}
public void setJavaVersion(@Nullable Integer javaVersion) {
this.javaVersion = javaVersion;
}
public Integer getJavaVersion() {
return this.javaVersion;
}
public void visitFile(@Nullable Tree parsedTree) {
semanticModel = null;
CompilationUnitTree tree = new JavaTree.CompilationUnitTreeImpl(null, Lists.newArrayList(), Lists.newArrayList(), null);
if (parsedTree != null && parsedTree.is(Tree.Kind.COMPILATION_UNIT)) {
tree = (CompilationUnitTree) parsedTree;
if (isNotJavaLangOrSerializable(PackageUtils.packageName(tree.packageDeclaration(), "/"))) {
try {
semanticModel = SemanticModel.createFor(tree, getProjectClasspath());
} catch (Exception e) {
LOG.error("Unable to create symbol table for : " + getContext().getFile().getAbsolutePath(), e);
return;
}
createSonarSymbolTable(tree);
} else {
SemanticModel.handleMissingTypes(tree);
}
}
JavaFileScannerContext javaFileScannerContext = createScannerContext(tree, semanticModel, analyseAccessors, sonarComponents);
for (JavaFileScanner scanner : executableScanners(scanners)) {
scanner.scanFile(javaFileScannerContext);
}
if (semanticModel != null) {
// Close class loader after all the checks.
semanticModel.done();
}
}
private List executableScanners(List scanners) {
ImmutableList.Builder results = ImmutableList.builder();
for (JavaFileScanner scanner : scanners) {
if (shouldBeExecuted(scanner)) {
results.add(scanner);
}
}
return results.build();
}
private boolean shouldBeExecuted(JavaFileScanner scanner) {
if (scanner instanceof JavaVersionAwareVisitor) {
return ((JavaVersionAwareVisitor) scanner).isCompatibleWithJavaVersion(javaVersion);
}
return true;
}
protected JavaFileScannerContext createScannerContext(CompilationUnitTree tree, SemanticModel semanticModel, boolean analyseAccessors, SonarComponents sonarComponents) {
return new DefaultJavaFileScannerContext(
tree,
(SourceFile) getContext().peekSourceCode(),
getContext().getFile(),
semanticModel,
analyseAccessors,
sonarComponents,
javaVersion);
}
private boolean isNotJavaLangOrSerializable(String packageName) {
String name = getContext().getFile().getName();
return !(inJavaLang(packageName) || isAnnotation(packageName, name) || isSerializable(packageName, name));
}
private static boolean isSerializable(String packageName, String name) {
return "java/io".equals(packageName) && "Serializable.java".equals(name);
}
private static boolean isAnnotation(String packageName, String name) {
return "java/lang/annotation".equals(packageName) && "Annotation.java".equals(name);
}
private static boolean inJavaLang(String packageName) {
return "java/lang".equals(packageName);
}
private List getProjectClasspath() {
return projectClasspath;
}
private void createSonarSymbolTable(CompilationUnitTree tree) {
if (sonarComponents != null) {
SonarSymbolTableVisitor symVisitor = new SonarSymbolTableVisitor(sonarComponents.symbolizableFor(getContext().getFile()), semanticModel);
symVisitor.visitCompilationUnit(tree);
}
}
public void processRecognitionException(RecognitionException e) {
for (JavaFileScanner scanner : scanners) {
if (scanner instanceof AstScannerExceptionHandler) {
((AstScannerExceptionHandler) scanner).processRecognitionException(e);
}
}
}
public VisitorContext getContext() {
return context;
}
public void setContext(VisitorContext context) {
this.context = context;
}
}
