/*
 * 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.apache.myfaces.tobago.apt;

import com.sun.mirror.apt.AnnotationProcessor;
import com.sun.mirror.apt.AnnotationProcessorEnvironment;
import com.sun.mirror.apt.AnnotationProcessorFactory;
import com.sun.mirror.declaration.AnnotationTypeDeclaration;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Set;

/*
* Created by IntelliJ IDEA.
* User: bommel
* Date: 30.03.2006
* Time: 19:15:08
*/
public class FaceletAnnotationProcessorFactory implements AnnotationProcessorFactory  {

  private static final Collection<String> SUPPORTED_ANNOTATIONS
      = Collections.unmodifiableCollection(Arrays.asList("org.apache.myfaces.tobago.apt.annotation.Tag",
          "org.apache.myfaces.tobago.apt.annotation.TagAttribute", "org.apache.myfaces.tobago.apt.annotation.Taglib",
          "org.apache.myfaces.tobago.apt.annotation.UIComponentTagAttribute"));

  private static final Collection<String> SUPPORTED_OPTIONS = Collections.emptyList();

  private FaceletAnnotationProcessor annotationProcessor = null;

  public Collection<String> supportedAnnotationTypes() {
    return SUPPORTED_ANNOTATIONS;
  }

  public Collection<String> supportedOptions() {
    return SUPPORTED_OPTIONS;
  }

  public AnnotationProcessor getProcessorFor(Set<AnnotationTypeDeclaration> atds,
      AnnotationProcessorEnvironment env) {
    if (annotationProcessor == null) {
      annotationProcessor = new FaceletAnnotationProcessor(atds, env);
    }
    return annotationProcessor;
  }

}
