1 /* BufferedCdrOutput.java -- 2 Copyright (C) 2005 Free Software Foundation, Inc. 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 39 package gnu.CORBA.CDR; 40 41 import java.io.ByteArrayOutputStream; 42 43 /** 44 * A CORBA output stream, writing data into the internal buffer ({@link ByteArrayOutputStream}). 45 * 46 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) 47 */ 48 public class BufferedCdrOutput 49 extends AbstractCdrOutput 50 implements gnuValueStream 51 { 52 /** 53 * Use serialVersionUID for interoperability. 54 */ 55 private static final long serialVersionUID = 1; 56 57 /** 58 * The byte buffer. 59 */ 60 public final AligningOutput buffer; 61 62 /** 63 * Creates the instance with the given initial buffer size. 64 * 65 * @param bufSize the buffer size. 66 */ BufferedCdrOutput(int bufSize)67 public BufferedCdrOutput(int bufSize) 68 { 69 buffer = new AligningOutput(bufSize); 70 setOutputStream(buffer); 71 } 72 73 /** 74 * Creates the instance with the default buffer size. 75 */ BufferedCdrOutput()76 public BufferedCdrOutput() 77 { 78 buffer = new AligningOutput(); 79 setOutputStream(buffer); 80 } 81 82 /** 83 * Set the alignment offset, if the index of the first byte in the stream is 84 * different from 0. 85 */ setOffset(int an_offset)86 public void setOffset(int an_offset) 87 { 88 buffer.setOffset(an_offset); 89 } 90 91 /** 92 * Align the curretn position at the given natural boundary. 93 */ align(int boundary)94 public void align(int boundary) 95 { 96 buffer.align(boundary); 97 } 98 99 /** 100 * Return the input stream that reads the previously written values. 101 */ create_input_stream()102 public org.omg.CORBA.portable.InputStream create_input_stream() 103 { 104 BufferredCdrInput in = new BufferredCdrInput(buffer.toByteArray()); 105 in.setOrb(orb); 106 107 in.setVersion(giop); 108 in.setCodeSet(getCodeSet()); 109 110 return in; 111 } 112 113 /** 114 * Resets (clears) the buffer. 115 */ reset()116 public void reset() 117 { 118 buffer.reset(); 119 setOutputStream(buffer); 120 } 121 122 /** 123 * Get the current position in the buffer. 124 * 125 * @return The position in the buffer, taking offset into consideration. 126 */ getPosition()127 public int getPosition() 128 { 129 return buffer.getPosition(); 130 } 131 132 /** 133 * Get the associated RunTime. 134 */ getRunTime()135 public gnuRuntime getRunTime() 136 { 137 return runtime; 138 } 139 140 /** 141 * Replace the instance of RunTime. 142 */ setRunTime(gnuRuntime a_runtime)143 public void setRunTime(gnuRuntime a_runtime) 144 { 145 runtime = a_runtime; 146 } 147 148 /** 149 * Seek to the given position. 150 */ seek(int position)151 public void seek(int position) 152 { 153 buffer.seek(position); 154 } 155 156 } 157