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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.apt;
21  
22  import com.sun.mirror.apt.AnnotationProcessor;
23  import com.sun.mirror.apt.AnnotationProcessorEnvironment;
24  import com.sun.mirror.apt.AnnotationProcessorFactory;
25  import com.sun.mirror.declaration.AnnotationTypeDeclaration;
26  
27  import java.util.Arrays;
28  import java.util.Collection;
29  import java.util.Collections;
30  import java.util.Set;
31  
32  public class CheckstyleConfigAnnotationProcessorFactory implements AnnotationProcessorFactory  {
33  
34    private static final Collection<String> SUPPORTED_ANNOTATIONS
35        = Collections.unmodifiableCollection(Arrays.asList(
36            "org.apache.myfaces.tobago.apt.annotation.Tag",
37            "org.apache.myfaces.tobago.apt.annotation.TagAttribute",
38            "org.apache.myfaces.tobago.apt.annotation.Taglib"));
39  
40    private static final Collection<String> SUPPORTED_OPTIONS = Collections.emptySet();
41  
42    private CheckstyleConfigAnnotationProcessor annotationProcessor = null;
43  
44    public Collection<String> supportedAnnotationTypes() {
45      return SUPPORTED_ANNOTATIONS;
46    }
47  
48    public Collection<String> supportedOptions() {
49      return SUPPORTED_OPTIONS;
50    }
51  
52    public AnnotationProcessor getProcessorFor(Set<AnnotationTypeDeclaration> declarations,
53        AnnotationProcessorEnvironment env) {
54      if (annotationProcessor == null) {
55        annotationProcessor = new CheckstyleConfigAnnotationProcessor(declarations, env);
56      }
57      return annotationProcessor;
58    }
59  }