001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.json;
014
015import java.util.*;
016
017import org.apache.juneau.*;
018import org.apache.juneau.json.annotation.*;
019
020/**
021 * Metadata on classes specific to the JSON serializers and parsers pulled from the {@link Json @Json} annotation on
022 * the class.
023 */
024public class JsonClassMeta extends ExtendedClassMeta {
025
026   private final List<Json> jsons;
027   private final String wrapperAttr;
028
029   /**
030    * Constructor.
031    *
032    * @param cm The class that this annotation is defined on.
033    * @param mp JSON metadata provider (for finding information about other artifacts).
034    */
035   public JsonClassMeta(ClassMeta<?> cm, JsonMetaProvider mp) {
036      super(cm);
037      this.jsons = cm.getAnnotations(Json.class);
038      
039      String _wrapperAttr = null;
040      for (Json a : this.jsons)
041         if (! a.wrapperAttr().isEmpty())
042            _wrapperAttr = a.wrapperAttr();
043      this.wrapperAttr = _wrapperAttr;
044   }
045
046   /**
047    * Returns the {@link Json @Json} annotations defined on the class.
048    *
049    * @return An unmodifiable list of annotations ordered parent-to-child, or an empty list if not found.
050    */
051   protected List<Json> getAnnotations() {
052      return jsons;
053   }
054
055   /**
056    * Returns the {@link Json#wrapperAttr() @Json(wrapperAttr)} annotation defined on the class.
057    *
058    * @return The value of the annotation, or <jk>null</jk> if not specified.
059    */
060   protected String getWrapperAttr() {
061      return wrapperAttr;
062   }
063}