/*
* 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 org.grails.compiler.web.taglib;
import java.lang.Override;
import java.net.URL;
import java.util.regex.Pattern;
import grails.web.controllers.ControllerMethod;
import org.codehaus.groovy.ast.AnnotationNode;
import org.codehaus.groovy.ast.ClassNode;
import org.grails.core.artefact.ControllerArtefactHandler;
import org.grails.compiler.injection.AbstractGrailsArtefactTransformer;
import grails.compiler.ast.AstTransformer;
import org.grails.io.support.GrailsResourceUtils;
import org.grails.plugins.web.api.ControllerTagLibraryApi;
/**
* Enhances controller classes with a method missing implementation for tags.
*
* @author Graeme Rocher
* @since 2.0
*/
@AstTransformer
public class ControllerTagLibraryTransformer extends AbstractGrailsArtefactTransformer {
public static Pattern CONTROLLER_PATTERN = Pattern.compile(".+/" +
GrailsResourceUtils.GRAILS_APP_DIR + "/controllers/(.+)Controller\\.groovy");
@Override
public Class<?> getInstanceImplementation() {
return ControllerTagLibraryApi.class;
}
@Override
public Class<?> getStaticImplementation() {
return null; // No static api
}
public boolean shouldInject(URL url) {
return url != null && CONTROLLER_PATTERN.matcher(url.getFile()).find();
}
@Override
protected AnnotationNode getMarkerAnnotation() {
return new AnnotationNode(new ClassNode(ControllerMethod.class).getPlainNodeReference());
}
@Override
public String getArtefactType() {
return ControllerArtefactHandler.TYPE;
}
}