/*
* Copyright (C) 2006-2012 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.tools.javac;
import groovy.lang.GroovyClassLoader;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.classgen.GeneratorContext;
import org.codehaus.groovy.classgen.VariableScopeVisitor;
import org.codehaus.groovy.control.CompilationFailedException;
import org.codehaus.groovy.control.CompilationUnit;
import org.codehaus.groovy.control.CompilerConfiguration;
import org.codehaus.groovy.control.Phases;
import org.codehaus.groovy.control.SourceUnit;
import java.io.File;
import java.io.FileNotFoundException;
import java.net.URL;
import java.util.Map;
/**
* Compilation unit to only generate stubs.
*
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
* @author Guillaume Laforge
*/
public class JavaStubCompilationUnit extends CompilationUnit {
private static final String DOT_GROOVY = ".groovy";
private final JavaStubGenerator stubGenerator;
private int stubCount;
public JavaStubCompilationUnit(final CompilerConfiguration config, final GroovyClassLoader gcl, File destDir) {
super(config, null, gcl);
assert config != null;
Map options = config.getJointCompilationOptions();
if (destDir == null) {
destDir = (File) options.get("stubDir");
}
boolean useJava5 = CompilerConfiguration.isPostJDK5(configuration.getTargetBytecode());
String encoding = configuration.getSourceEncoding();
stubGenerator = new JavaStubGenerator(destDir, false, useJava5, encoding);
addPhaseOperation(new PrimaryClassNodeOperation() {
@Override
public void call(SourceUnit source, GeneratorContext context, ClassNode node) throws CompilationFailedException {
VariableScopeVisitor scopeVisitor = new VariableScopeVisitor(source);
scopeVisitor.visitClass(node);
new JavaAwareResolveVisitor(JavaStubCompilationUnit.this).startResolving(node, source);
}
}, Phases.CONVERSION);
addPhaseOperation(new PrimaryClassNodeOperation() {
@Override
public void call(final SourceUnit source, final GeneratorContext context, final ClassNode node) throws CompilationFailedException {
try {
stubGenerator.generateClass(node);
stubCount++;
} catch (FileNotFoundException e) {
source.addException(e);
}
}
}, Phases.CONVERSION);
}
public JavaStubCompilationUnit(final CompilerConfiguration config, final GroovyClassLoader gcl) {
this(config, gcl, null);
}
public int getStubCount() {
return stubCount;
}
@Override
public void compile() throws CompilationFailedException {
stubCount = 0;
super.compile(Phases.CONVERSION);
}
@Override
public void configure(final CompilerConfiguration config) {
super.configure(config);
// GroovyClassLoader should be able to find classes compiled from java sources
File targetDir = config.getTargetDirectory();
if (targetDir != null) {
final String classOutput = targetDir.getAbsolutePath();
getClassLoader().addClasspath(classOutput);
}
}
@Override
public SourceUnit addSource(final File file) {
if (hasAcceptedFileExtension(file.getName())) {
return super.addSource(file);
}
return null;
}
@Override
public SourceUnit addSource(URL url) {
if (hasAcceptedFileExtension(url.getPath())) {
return super.addSource(url);
}
return null;
}
private boolean hasAcceptedFileExtension(String name) {
String lowerCasedName = name.toLowerCase();
for (String extension : configuration.getScriptExtensions()) {
if (lowerCasedName.endsWith(extension))
return true;
}
return false;
}
}