/*
* Copyright 2011 SpringSource
*
* 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 com.adaptc.mws.plugins.testing.transformations;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.ast.FieldNode;
import org.codehaus.groovy.ast.expr.ArgumentListExpression;
import org.codehaus.groovy.ast.expr.ClassExpression;
import org.codehaus.groovy.ast.expr.ConstantExpression;
import org.codehaus.groovy.ast.expr.MethodCallExpression;
import org.codehaus.groovy.classgen.GeneratorContext;
import org.codehaus.groovy.control.SourceUnit;
import java.lang.reflect.Modifier;
import java.net.URL;
/**
* Adds a log method to all artifacts.
* <br /><br />
* Note that this comes from Grails.
* @author Graeme Rocher
*/
public class LoggingTransformer implements ClassInjector{
public static final String LOG_PROPERTY = "log";
public void performInjection(SourceUnit source, GeneratorContext context, ClassNode classNode) {
final FieldNode existingField = classNode.getDeclaredField(LOG_PROPERTY);
if (existingField == null && !classNode.isInterface()) {
String logName = "plugins." + classNode.getName();
addLogField(classNode, logName);
}
}
public static void addLogField(ClassNode classNode, String logName) {
FieldNode logVariable = new FieldNode(LOG_PROPERTY,
Modifier.STATIC | Modifier.PRIVATE,
new ClassNode(Log.class),
classNode,
new MethodCallExpression(new ClassExpression(new ClassNode(LogFactory.class)), "getLog", new ArgumentListExpression(new ConstantExpression(logName))));
classNode.addField(logVariable);
}
public void performInjection(SourceUnit source, ClassNode classNode) {
performInjection(source, null, classNode);
}
public boolean shouldInject(URL url) {
return true; // Add log property to all artifact types
}
}