Coverage Report - org.apache.tapestry.markup.JSONWriterImpl
 
Classes in this File Line Coverage Branch Coverage Complexity
JSONWriterImpl
0%
0/22
0%
0/12
2
 
 1  
 // Copyright 2006 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // you may not use this file except in compliance with the License.
 5  
 // You may obtain a copy of the License at
 6  
 //
 7  
 //     http://www.apache.org/licenses/LICENSE-2.0
 8  
 //
 9  
 // Unless required by applicable law or agreed to in writing, software
 10  
 // distributed under the License is distributed on an "AS IS" BASIS,
 11  
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12  
 // See the License for the specific language governing permissions and
 13  
 // limitations under the License.
 14  
 package org.apache.tapestry.markup;
 15  
 
 16  
 import java.io.PrintWriter;
 17  
 
 18  
 import org.apache.hivemind.util.Defense;
 19  
 import org.apache.tapestry.json.IJSONWriter;
 20  
 import org.apache.tapestry.json.JSONArray;
 21  
 import org.apache.tapestry.json.JSONObject;
 22  
 
 23  
 /**
 24  
  * Implementation of {@link IJSONWriter}.
 25  
  * 
 26  
  * @author jkuhnert
 27  
  */
 28  
 public class JSONWriterImpl implements IJSONWriter
 29  
 {   
 30  
     /** Outputstream writer. */
 31  
     protected PrintWriter _writer;
 32  
     
 33  
     /**
 34  
      * Delegate object that handles object json renders.
 35  
      */
 36  
     private JSONObject _json;
 37  
     
 38  
     /**
 39  
      * Delegate array object that handles object array json renders.
 40  
      */
 41  
     private JSONArray _array;
 42  
     
 43  
     /**
 44  
      * Creates a new instance that will write all content to 
 45  
      * the specified {@link PrintWriter}.
 46  
      * 
 47  
      * @param writer The outputstream to write to.
 48  
      */
 49  
     public JSONWriterImpl(PrintWriter writer)
 50  0
     {
 51  0
         Defense.notNull(writer, "writer");
 52  
         
 53  0
         _writer = writer;
 54  0
     }
 55  
 
 56  
     /**
 57  
      * 
 58  
      * {@inheritDoc}
 59  
      */
 60  
     public void close()
 61  
     {
 62  0
         if (_json == null && _array == null)
 63  0
             _json = new JSONObject();
 64  
         
 65  0
         if (_json != null) {
 66  
             
 67  0
             _writer.write(_json.toString());
 68  
         }
 69  
         
 70  0
         if (_array != null) {
 71  
             
 72  0
             _writer.write(_array.toString());
 73  
         }
 74  
         
 75  0
         _writer.flush();
 76  0
         _writer.close();
 77  0
     }
 78  
     
 79  
     /**
 80  
      * {@inheritDoc}
 81  
      */
 82  
     public JSONObject object()
 83  
     {
 84  0
         if (_json == null)
 85  0
             _json = new JSONObject();
 86  
         
 87  0
         return _json;
 88  
     }
 89  
     
 90  
     /**
 91  
      * {@inheritDoc}
 92  
      */
 93  
     public JSONArray array()
 94  
     {
 95  0
         if (_array == null)
 96  0
             _array = new JSONArray();
 97  
         
 98  0
         return _array;
 99  
     }
 100  
     
 101  
     public void flush()
 102  
     {
 103  0
         _writer.flush();
 104  0
     }
 105  
     
 106  
     /**
 107  
      * The outputstream being used to write this 
 108  
      * instance's content.
 109  
      * 
 110  
      * @return  The writer being written to.
 111  
      */
 112  
     protected PrintWriter getWriter()
 113  
     {
 114  0
         return _writer;
 115  
     }
 116  
 }