/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.netbeans.modules.j2ee.persistence.editor.completion;

import java.util.List;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.TypeElement;
import org.netbeans.modules.j2ee.persistence.wizard.jpacontroller.JpaControllerUtil;

/**
 *
 * @author Andrei Badea
 */

public class AnnotationUtils {
    
    private AnnotationUtils() {
        assert false;
    }
    
    // XXX maybe just put this in JMIUtils
    
    public static AnnotationMirror getAnnotationByTypeName(TypeElement cls, String typeName) {
        assert cls != null;
        assert typeName != null;
        return JpaControllerUtil.findAnnotation(cls, typeName);
    }
    
    /**
     * Returns an annotation member value when this value is a string literal.
     */
    public static String getStringMemberValue(AnnotationMirror annotation, String memberName) {
        assert annotation != null;
        assert memberName != null;
        return JpaControllerUtil.findAnnotationValueAsString(annotation, memberName);
    }
    
    /**
     * Returns an annotation member value when this value is an array of annotations.
     */
    public static List<AnnotationMirror> getAnnotationsMemberValue(AnnotationMirror annotation, String memberName) {
        assert annotation != null;
        assert memberName != null;
        return JpaControllerUtil.findNestedAnnotations(annotation, memberName);
    }
}
