1 /* StreamHolder.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 package gnu.CORBA; 39 40 import org.omg.CORBA.MARSHAL; 41 import org.omg.CORBA.NO_IMPLEMENT; 42 import org.omg.CORBA.TypeCode; 43 import org.omg.CORBA.portable.InputStream; 44 import org.omg.CORBA.portable.OutputStream; 45 import org.omg.CORBA.portable.Streamable; 46 47 import java.io.IOException; 48 49 /** 50 * A holder that stores the input stream, from that the holder data 51 * can be read. There is no way to write the data into this holder. 52 * 53 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 54 */ 55 public class StreamHolder 56 implements Streamable 57 { 58 /** 59 * The stream, holding the data for this holder. 60 */ 61 protected final InputStream stream; 62 63 /** 64 * Create a holder that will read from the given stream. 65 * 66 * @param a_stream a stream. 67 */ StreamHolder(InputStream a_stream)68 public StreamHolder(InputStream a_stream) 69 { 70 stream = a_stream; 71 } 72 73 /** 74 * This method is not in use, should never be called. 75 */ _type()76 public TypeCode _type() 77 { 78 throw new NO_IMPLEMENT(); 79 } 80 81 /** 82 * Writes the data from the stored stream into the provided 83 * output stream till the end of the input stream is reached. 84 * 85 * @throws MARSHAL if the IOException is thrown during operation. 86 */ _write(OutputStream output)87 public void _write(OutputStream output) 88 { 89 try 90 { 91 int d = stream.read(); 92 93 while (d >= 0) 94 { 95 output.write(d); 96 d = stream.read(); 97 } 98 } 99 catch (IOException ex) 100 { 101 MARSHAL m = new MARSHAL(); 102 m.initCause(ex); 103 m.minor = Minor.CDR; 104 throw m; 105 } 106 } 107 108 /** 109 * This method is not in use, should never be called. 110 */ _read(InputStream input)111 public void _read(InputStream input) 112 { 113 throw new NO_IMPLEMENT(); 114 } 115 116 /** 117 * Get the input stream that has been passed in constructor. 118 */ getInputStream()119 InputStream getInputStream() 120 { 121 return stream; 122 } 123 }