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.jso;
014
015import java.io.*;
016
017import org.apache.juneau.*;
018import org.apache.juneau.parser.*;
019
020/**
021 * Session object that lives for the duration of a single use of {@link JsoParser}.
022 *
023 * <p>
024 * This class is NOT thread safe.
025 * It is typically discarded after one-time use although it can be reused against multiple inputs.
026 */
027@SuppressWarnings("unchecked")
028public class JsoParserSession extends InputStreamParserSession {
029
030   /**
031    * Create a new session using properties specified in the context.
032    *
033    * @param args
034    *    Runtime session arguments.
035    */
036   protected JsoParserSession(ParserSessionArgs args) {
037      super(args);
038   }
039
040   @Override /* ParserSession */
041   protected <T> T doParse(ParserPipe pipe, ClassMeta<T> type) throws IOException, ParseException {
042      ObjectInputStream ois = new ObjectInputStream(pipe.getInputStream());
043      try {
044         return (T)ois.readObject();
045      } catch (ClassNotFoundException e) {
046         throw new ParseException(e);
047      }
048   }
049
050   //-----------------------------------------------------------------------------------------------------------------
051   // Other methods
052   //-----------------------------------------------------------------------------------------------------------------
053
054   @Override /* Session */
055   public ObjectMap toMap() {
056      return super.toMap()
057         .append("JsoParserSession", new DefaultFilteringObjectMap()
058         );
059   }
060}