Coverage Report - org.apache.tapestry.markup.NestedMarkupWriterImpl
 
Classes in this File Line Coverage Branch Coverage Complexity
NestedMarkupWriterImpl
0%
0/14
0%
0/2
1.5
 
 1  
 // Copyright 2005 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  
 
 15  
 package org.apache.tapestry.markup;
 16  
 
 17  
 import java.io.CharArrayWriter;
 18  
 import java.io.PrintWriter;
 19  
 
 20  
 import org.apache.tapestry.IMarkupWriter;
 21  
 import org.apache.tapestry.NestedMarkupWriter;
 22  
 
 23  
 /**
 24  
  * Nested implementation of {@link org.apache.tapestry.IMarkupWriter}. Accumulates content in a
 25  
  * {@link java.io.CharArrayWriter}, and prints the buffered content (raw) on {@link #close()}.
 26  
  * 
 27  
  * @author Howard M. Lewis Ship
 28  
  * @since 4.0
 29  
  * @see org.apache.tapestry.IMarkupWriter#getNestedWriter()
 30  
  */
 31  
 public class NestedMarkupWriterImpl extends MarkupWriterImpl implements NestedMarkupWriter
 32  
 {
 33  
     private final IMarkupWriter _parent;
 34  
 
 35  
     private final CharArrayWriter _charArrayWriter;
 36  
 
 37  
     private boolean _closed;
 38  
 
 39  
     public NestedMarkupWriterImpl(IMarkupWriter parent, MarkupFilter filter)
 40  
     {
 41  
         // Need to do this awkward double constructor because we want
 42  
         // to create an object and pass it to the parent constructor.
 43  
         // Java language rules get in the way here.
 44  
 
 45  0
         this(parent, new CharArrayWriter(), filter);
 46  0
     }
 47  
 
 48  
     private NestedMarkupWriterImpl(IMarkupWriter parent, CharArrayWriter writer, MarkupFilter filter)
 49  
     {
 50  0
         super(parent.getContentType(), new PrintWriter(writer), filter);
 51  
 
 52  0
         _parent = parent;
 53  0
         _charArrayWriter = writer;
 54  0
     }
 55  
     
 56  
     public String getBuffer()
 57  
     {
 58  0
         if (_closed)
 59  0
             throw new IllegalStateException(MarkupMessages.closeOnce());
 60  
 
 61  0
         _closed = true;
 62  
 
 63  0
         super.close();
 64  
 
 65  0
         return _charArrayWriter.toString();
 66  
     }
 67  
 
 68  
     /**
 69  
      * Closes the internal {@link CharArrayWriter}, then captures its content and invokes
 70  
      * {@link org.apache.tapestry.IMarkupWriter#printRaw(String)} on the parent markup writer
 71  
      * (the writer that created this writer).
 72  
      */
 73  
 
 74  
     public void close()
 75  
     {
 76  0
         String content = getBuffer();
 77  
 
 78  0
         _parent.printRaw(content);
 79  0
     }
 80  
 }