/*
* Copyright 2004-2005 Graeme Rocher
*
* 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.injection;
import grails.build.logging.GrailsConsole;
import grails.compiler.ast.ClassInjector;
import grails.compiler.ast.GrailsDomainClassInjector;
import grails.compiler.traits.TraitInjector;
import grails.persistence.Entity;
import groovy.transform.CompilationUnitAware;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.codehaus.groovy.ast.ASTNode;
import org.codehaus.groovy.ast.AnnotatedNode;
import org.codehaus.groovy.ast.AnnotationNode;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.control.CompilationUnit;
import org.codehaus.groovy.control.CompilePhase;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.transform.ASTTransformation;
import org.codehaus.groovy.transform.GroovyASTTransformation;
import org.grails.core.artefact.DomainClassArtefactHandler;
@GroovyASTTransformation(phase = CompilePhase.CANONICALIZATION)
public class EntityASTTransformation implements ASTTransformation, CompilationUnitAware {
private static final ClassNode MY_TYPE = new ClassNode(Entity.class);
private static final String MY_TYPE_NAME = "@" + MY_TYPE.getNameWithoutPackage();
protected CompilationUnit compilationUnit;
public void visit(ASTNode[] astNodes, SourceUnit sourceUnit) {
if (!(astNodes[0] instanceof AnnotationNode) || !(astNodes[1] instanceof AnnotatedNode)) {
throw new RuntimeException("Internal error: wrong types: $node.class / $parent.class");
}
AnnotatedNode parent = (AnnotatedNode) astNodes[1];
AnnotationNode node = (AnnotationNode) astNodes[0];
if (!MY_TYPE.equals(node.getClassNode()) || !(parent instanceof ClassNode)) {
return;
}
ClassNode cNode = (ClassNode) parent;
String cName = cNode.getName();
if (cNode.isInterface()) {
throw new RuntimeException("Error processing interface '" + cName + "'. " +
MY_TYPE_NAME + " not allowed for interfaces.");
}
applyTransformation(sourceUnit, cNode);
}
public void applyTransformation(SourceUnit sourceUnit, ClassNode classNode) {
if(GrailsASTUtils.isApplied(classNode, EntityASTTransformation.class)) {
return;
}
GrailsASTUtils.markApplied(classNode, EntityASTTransformation.class);
GrailsDomainClassInjector domainInjector = new DefaultGrailsDomainClassInjector();
domainInjector.performInjectionOnAnnotatedEntity(classNode);
ClassInjector[] classInjectors = GrailsAwareInjectionOperation.getClassInjectors();
final List<ClassInjector> domainInjectors = ArtefactTypeAstTransformation.findInjectors(DomainClassArtefactHandler.TYPE, classInjectors);
for (ClassInjector injector : domainInjectors) {
try {
injector.performInjection(sourceUnit, classNode);
} catch (RuntimeException e) {
try {
GrailsConsole.getInstance().error("Error occurred calling AST injector ["+injector.getClass().getName()+"]: " + e.getMessage(), e);
} catch (Throwable t) {
// ignore
}
throw e;
}
}
if(compilationUnit != null) {
// TODO this code is showing up in multiple places and should be centralized. See ResourceTransform and ArtefactTypeAstTransformation
GrailsAwareTraitInjectionOperation grailsTraitInjector = new GrailsAwareTraitInjectionOperation(compilationUnit);
List<TraitInjector> traitInjectors = grailsTraitInjector.getTraitInjectors();
List<TraitInjector> injectorsToUse = new ArrayList<TraitInjector>();
for(TraitInjector injector : traitInjectors) {
List<String> artefactTypes = Arrays.asList(injector.getArtefactTypes());
if(artefactTypes.contains(DomainClassArtefactHandler.TYPE)) {
injectorsToUse.add(injector);
}
}
grailsTraitInjector.performTraitInjection(sourceUnit, classNode, injectorsToUse);
}
}
@Override
public void setCompilationUnit(CompilationUnit unit) {
compilationUnit = unit;
}
}