/*
* Copyright 2011 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.grails.compiler.validation;
import grails.validation.DefaultASTValidateableHelper;
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.ast.expr.Expression;
import org.codehaus.groovy.control.CompilePhase;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.transform.ASTTransformation;
import org.codehaus.groovy.transform.GroovyASTTransformation;
@GroovyASTTransformation(phase = CompilePhase.CANONICALIZATION)
public class ValidateableTransformation implements ASTTransformation{
private static final ClassNode VALIDATEABLE_CLASS_NODE = new ClassNode(grails.validation.Validateable.class);
public void visit(ASTNode[] astNodes, SourceUnit source) {
if (!(astNodes[0] instanceof AnnotationNode) || !(astNodes[1] instanceof AnnotatedNode)) {
throw new RuntimeException("Internal error: wrong types: $node.class / $parent.class");
}
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 (!VALIDATEABLE_CLASS_NODE.equals(node.getClassNode())) {
return;
}
ClassNode cNode = (ClassNode) parent;
String cName = cNode.getName();
if (cNode.isInterface()) {
throw new RuntimeException("Error processing interface '" + cName + "'. @Validateable not allowed for interfaces.");
}
// GRAILS-11416 - Allow override of default nullability
boolean defaultNullable = false;
Expression nullable = node.getMember("nullable");
if (nullable != null) {
defaultNullable = Boolean.parseBoolean(nullable.getText());
}
new DefaultASTValidateableHelper().injectValidateableCode(cNode, defaultNullable);
}
}