1 /* TaggedComponentHelper.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 org.omg.IOP; 40 41 import gnu.CORBA.Minor; 42 import gnu.CORBA.OrbRestricted; 43 44 import org.omg.CORBA.Any; 45 import org.omg.CORBA.BAD_OPERATION; 46 import org.omg.CORBA.ORB; 47 import org.omg.CORBA.StructMember; 48 import org.omg.CORBA.TCKind; 49 import org.omg.CORBA.TypeCode; 50 import org.omg.CORBA.portable.InputStream; 51 import org.omg.CORBA.portable.OutputStream; 52 53 /** 54 * A helper operations for the {@link TaggedComponent}. 55 * 56 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 57 */ 58 public abstract class TaggedComponentHelper 59 { 60 /** 61 * Create the TaggedComponent typecode (structure, named "TaggedComponent"). 62 * The typecode states that the structure contains the following fields: tag, 63 * component_data. 64 */ type()65 public static TypeCode type() 66 { 67 ORB orb = OrbRestricted.Singleton; 68 StructMember[] members = new StructMember[2]; 69 70 TypeCode field; 71 72 field = orb.create_alias_tc("IDL:omg.org/IOP/ComponentId:1.0", 73 "ComponentId", 74 orb.get_primitive_tc(TCKind.tk_ulong)); 75 members[0] = new StructMember("tag", field, null); 76 77 field = orb.create_sequence_tc(0, orb.get_primitive_tc(TCKind.tk_octet)); 78 members[1] = new StructMember("component_data", field, null); 79 return orb.create_struct_tc(id(), "TaggedComponent", members); 80 } 81 82 /** 83 * Insert the TaggedComponent into the given Any. This method uses the 84 * TaggedComponentHolder. 85 * 86 * @param any the Any to insert into. 87 * @param that the TaggedComponent to insert. 88 */ insert(Any any, TaggedComponent that)89 public static void insert(Any any, TaggedComponent that) 90 { 91 any.insert_Streamable(new TaggedComponentHolder(that)); 92 } 93 94 /** 95 * Extract the TaggedComponent from given Any. This method uses the 96 * TaggedComponentHolder. 97 * 98 * @throws BAD_OPERATION if the passed Any does not contain TaggedComponent. 99 */ extract(Any any)100 public static TaggedComponent extract(Any any) 101 { 102 try 103 { 104 return ((TaggedComponentHolder) any.extract_Streamable()).value; 105 } 106 catch (ClassCastException cex) 107 { 108 BAD_OPERATION bad = new BAD_OPERATION("TaggedComponent expected"); 109 bad.minor = Minor.Any; 110 bad.initCause(cex); 111 throw bad; 112 } 113 } 114 115 /** 116 * Get the TaggedComponent repository id. 117 * 118 * @return "IDL:omg.org/IOP/TaggedComponent:1.0", always. 119 */ id()120 public static String id() 121 { 122 return "IDL:omg.org/IOP/TaggedComponent:1.0"; 123 } 124 125 /** 126 * Read the structure from the CDR intput stream. Expects the integer 127 * identifier of the tag, then the size of the tag data and then the specified 128 * number of bytes, representing the data of the tag. 129 * 130 * @param input a org.omg.CORBA.portable stream to read from. 131 */ read(InputStream input)132 public static TaggedComponent read(InputStream input) 133 { 134 TaggedComponent value = new TaggedComponent(); 135 value.tag = input.read_long(); 136 int length = input.read_long(); 137 value.component_data = new byte[length]; 138 input.read_octet_array(value.component_data, 0, length); 139 return value; 140 } 141 142 /** 143 * Write the structure to the CDR output stream. Writes the integer identifier 144 * of the tag, then the size of the tag data and then the specified number of 145 * bytes, representing the data of the tag. 146 * 147 * @param output a org.omg.CORBA.portable stream stream to write into. 148 * @param value a value to write. 149 */ write(OutputStream output, TaggedComponent value)150 public static void write(OutputStream output, TaggedComponent value) 151 { 152 output.write_long(value.tag); 153 output.write_long(value.component_data.length); 154 output.write_octet_array(value.component_data, 0, value.component_data.length); 155 } 156 } 157