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.collections.*;
019import org.apache.juneau.parser.*;
020
021/**
022 * Session object that lives for the duration of a single use of {@link JsoParser}.
023 *
024 * <p>
025 * This class is NOT thread safe.
026 * It is typically discarded after one-time use although it can be reused against multiple inputs.
027 */
028@SuppressWarnings("unchecked")
029public class JsoParserSession extends InputStreamParserSession {
030
031   /**
032    * Create a new session using properties specified in the context.
033    *
034    * @param args
035    *    Runtime session arguments.
036    */
037   protected JsoParserSession(ParserSessionArgs args) {
038      super(args);
039   }
040
041   @Override /* ParserSession */
042   protected <T> T doParse(ParserPipe pipe, ClassMeta<T> type) throws IOException, ParseException {
043      ObjectInputStream ois = new ObjectInputStream(pipe.getInputStream());
044      try {
045         return (T)ois.readObject();
046      } catch (ClassNotFoundException e) {
047         throw new ParseException(e);
048      }
049   }
050
051   //-----------------------------------------------------------------------------------------------------------------
052   // Other methods
053   //-----------------------------------------------------------------------------------------------------------------
054
055   @Override /* Session */
056   public OMap toMap() {
057      return super.toMap()
058         .a("JsoParserSession", new DefaultFilteringOMap()
059         );
060   }
061}