Clover coverage report - ActiveIO - 1.0
Coverage timestamp: Fri Apr 22 2005 14:27:22 PDT
file stats: LOC: 111   Methods: 10
NCLOC: 75   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
PacketByteArrayOutputStream.java 0% 0% 0% 0%
coverage
 1   
 /**
 2   
  * 
 3   
  * Copyright 2004 Hiram Chirino
 4   
  * 
 5   
  * Licensed under the Apache License, Version 2.0 (the "License"); 
 6   
  * you may not use this file except in compliance with the License. 
 7   
  * You may obtain a copy of the License at 
 8   
  * 
 9   
  * http://www.apache.org/licenses/LICENSE-2.0
 10   
  * 
 11   
  * Unless required by applicable law or agreed to in writing, software
 12   
  * distributed under the License is distributed on an "AS IS" BASIS, 
 13   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 14   
  * See the License for the specific language governing permissions and 
 15   
  * limitations under the License. 
 16   
  * 
 17   
  **/
 18   
 package org.activeio.adapter;
 19   
 
 20   
 import java.io.IOException;
 21   
 import java.io.OutputStream;
 22   
 
 23   
 import org.activeio.Packet;
 24   
 import org.activeio.packet.AppendedPacket;
 25   
 import org.activeio.packet.ByteArrayPacket;
 26   
 
 27   
 /**
 28   
  *
 29   
  */
 30   
 final public class PacketByteArrayOutputStream extends OutputStream {
 31   
     
 32   
     private Packet result;
 33   
     private Packet current;
 34   
     int nextAllocationSize=0;
 35   
     
 36  0
     public PacketByteArrayOutputStream() {
 37  0
         this( 1024 );
 38   
     }
 39   
     
 40  0
     public PacketByteArrayOutputStream(int initialSize) {
 41  0
         nextAllocationSize = initialSize;
 42  0
         current = allocate();
 43   
     }
 44   
     
 45  0
     protected Packet allocate() {
 46  0
         ByteArrayPacket packet = new ByteArrayPacket(new byte[nextAllocationSize]);
 47  0
         nextAllocationSize <<= 3; // x by 8
 48  0
         return packet;
 49   
     }
 50   
     
 51  0
     public void skip(int size) {
 52  0
         while( size > 0 ) {
 53  0
             if( !current.hasRemaining() ) {
 54  0
                 allocatedNext();
 55   
             }
 56   
             
 57  0
             int skip = ((size <= current.remaining()) ? size : current.remaining());
 58  0
             current.position(current.position()+skip);
 59  0
             size -= skip;
 60   
         }
 61   
     }
 62   
     
 63  0
     public void write(int b) throws IOException {
 64  0
         if( !current.hasRemaining() ) {
 65  0
             allocatedNext();
 66   
         }
 67  0
         current.write(b);
 68   
     }
 69   
     
 70  0
     public void write(byte[] b, int off, int len) throws IOException {
 71  0
         while( len > 0 ) {
 72  0
             if( !current.hasRemaining() ) {
 73  0
                 allocatedNext();
 74   
             }
 75  0
             int wrote = current.write(b,off,len);
 76  0
             off+=wrote;
 77  0
             len-=wrote;
 78   
         }
 79   
     }
 80   
     
 81  0
     private void allocatedNext() {
 82  0
         if( result == null ) {
 83  0
             current.flip();
 84  0
             result = current;
 85   
         } else {
 86  0
             current.flip();
 87  0
             result = AppendedPacket.join(result, current);            
 88   
         }
 89  0
         current = allocate();
 90   
     }
 91   
     
 92  0
     public Packet getPacket() {
 93  0
         if( result == null ) {
 94  0
             current.flip();
 95  0
             return current.slice();
 96   
         } else {
 97  0
             current.flip();
 98  0
             return AppendedPacket.join(result, current);                
 99   
         }
 100   
     }
 101   
 
 102  0
     public void reset() {
 103  0
         result = null;
 104  0
         current.clear();
 105   
     }
 106   
 
 107  0
     public int position() {
 108  0
         return current.position() + (result==null ? 0 : result.remaining());
 109   
     }
 110   
 }
 111