code: /*
   * 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.skywalking.oap.server.core.analysis;
  
  import java.lang.annotation.Annotation;
  import java.util.HashSet;
  import java.util.Set;
  import org.apache.skywalking.oap.server.core.annotation.AnnotationListener;
  
  /**
   * Disable definition scanner and register.
   */
  public class DisableRegister implements AnnotationListener {
      public static DisableRegister INSTANCE = new DisableRegister();
      private Set<String> disableEntitySet = new HashSet<>();
  
      private DisableRegister() {
      }
  
      @Override
      public Class<? extends Annotation> annotation() {
          return MultipleDisable.class;
      }
  
      @Override
      public void notify(Class aClass) {
          MultipleDisable annotation = (MultipleDisable) aClass.getAnnotation(MultipleDisable.class);
          Disable[] valueList = annotation.value();
          if (valueList != null) {
              for (Disable disable : valueList) {
                  add(disable.value());
              }
          }
      }
  
      public void add(String name) {
          disableEntitySet.add(name);
      }
  
      public boolean include(String name) {
          return disableEntitySet.contains(name);
      }
  
      public static class SingleDisableScanListener implements AnnotationListener {
          @Override
          public Class<? extends Annotation> annotation() {
              return Disable.class;
          }
  
          @Override
          public void notify(Class aClass) {
              String name = ((Disable) aClass.getAnnotation(Disable.class)).value();
              DisableRegister.INSTANCE.disableEntitySet.add(name);
          }
      }
  }
  