/*

  * 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.apache.commons.classscan.bcel;

 import java.util.Set;

 import org.apache.bcel.classfile.AnnotationEntry;

 import org.apache.bcel.classfile.ElementValuePair;

 import org.apache.commons.classscan.builtin.ClassNameHelper;

 import org.apache.commons.classscan.spi.model.SpiMetaAnnotation;

 import org.apache.commons.classscan.spi.model.SpiMetaClassLoader;

 import org.apache.commons.classscan.util.NameSet;

 public class BcelAnnotation implements SpiMetaAnnotation {

     private final String name;

     private final NameSet<SpiProperty> properties;

     public BcelAnnotation(AnnotationEntry annotation) {

         name = ClassNameHelper.internalToCanonicalName(annotation.getAnnotationType());

         ElementValuePair[] elementValuePairs = annotation.getElementValuePairs();

         if (elementValuePairs.length == 0) {

             properties = NameSet.emptyNameSet();

         }

         else {

             properties = new NameSet<SpiProperty>(fillMapAndArray(elementValuePairs));

         }

     }

         @Override

         public boolean resolve(SpiMetaClassLoader classLoader) {

                 return properties.resolve(classLoader);

         }

     private SpiProperty[] fillMapAndArray(ElementValuePair[] evPairs) {

         SpiProperty[] values = new SpiProperty[evPairs.length];

         for (int i = 0; i < evPairs.length; ++i) {

             values[i] = new BcelProperty(evPairs[i]);

         }

         return values;

     }

     @Override

     public String getName() {

         return name;

     }

     @Override

     public Set<? extends Property> getProperties() {

         return properties;

     }

     @Override

     public Property getProperty(String propertyName) {

         return properties.getValue(propertyName);

     }

 }