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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 org.omg.CORBA.Any; 42: import org.omg.CORBA.BAD_OPERATION; 43: import org.omg.CORBA.ORB; 44: import org.omg.CORBA.StructMember; 45: import org.omg.CORBA.TCKind; 46: import org.omg.CORBA.TypeCode; 47: import org.omg.CORBA.portable.InputStream; 48: import org.omg.CORBA.portable.OutputStream; 49: 50: /** 51: * A helper operations for the {@link TaggedComponent}. 52: * 53: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 54: */ 55: public abstract class TaggedComponentHelper 56: { 57: /** 58: * The cached typecode value, computed only once. 59: */ 60: private static TypeCode typeCode; 61: 62: /** 63: * Create the TaggedComponent typecode (structure, 64: * named "TaggedComponent"). 65: * The typecode states that the structure contains the 66: * following fields: tag, component_data. 67: */ 68: public static TypeCode type() 69: { 70: if (typeCode == null) 71: { 72: ORB orb = ORB.init(); 73: StructMember[] members = new StructMember[ 2 ]; 74: 75: TypeCode field; 76: 77: field = 78: orb.create_alias_tc("IDL:omg.org/IOP/ComponentId:1.0", "ComponentId", 79: orb.get_primitive_tc(TCKind.tk_ulong) 80: ); 81: members [ 0 ] = new StructMember("tag", field, null); 82: 83: field = 84: orb.create_sequence_tc(0, orb.get_primitive_tc(TCKind.tk_octet)); 85: members [ 1 ] = new StructMember("component_data", field, null); 86: typeCode = orb.create_struct_tc(id(), "TaggedComponent", members); 87: } 88: return typeCode; 89: } 90: 91: /** 92: * Insert the TaggedComponent into the given Any. 93: * This method uses the TaggedComponentHolder. 94: * 95: * @param any the Any to insert into. 96: * @param that the TaggedComponent to insert. 97: */ 98: public static void insert(Any any, TaggedComponent that) 99: { 100: any.insert_Streamable(new TaggedComponentHolder(that)); 101: } 102: 103: /** 104: * Extract the TaggedComponent from given Any. 105: * This method uses the TaggedComponentHolder. 106: * 107: * @throws BAD_OPERATION if the passed Any does not contain TaggedComponent. 108: */ 109: public static TaggedComponent extract(Any any) 110: { 111: try 112: { 113: return ((TaggedComponentHolder) any.extract_Streamable()).value; 114: } 115: catch (ClassCastException cex) 116: { 117: BAD_OPERATION bad = new BAD_OPERATION("TaggedComponent expected"); 118: bad.initCause(cex); 119: throw bad; 120: } 121: } 122: 123: /** 124: * Get the TaggedComponent repository id. 125: * 126: * @return "IDL:omg.org/IOP/TaggedComponent:1.0", always. 127: */ 128: public static String id() 129: { 130: return "IDL:omg.org/IOP/TaggedComponent:1.0"; 131: } 132: 133: /** 134: * Read the structure from the CDR intput stream. Expects the integer 135: * identifier of the tag, then the size of the tag data 136: * and then the specified number of bytes, representing the data 137: * of the tag. 138: * 139: * @param input a org.omg.CORBA.portable stream to read from. 140: */ 141: public static TaggedComponent read(InputStream input) 142: { 143: TaggedComponent value = new TaggedComponent(); 144: value.tag = input.read_long(); 145: value.component_data = new byte[ input.read_long() ]; 146: for (int i0 = 0; i0 < value.component_data.length; i0++) 147: value.component_data [ i0 ] = input.read_octet(); 148: return value; 149: } 150: 151: /** 152: * Write the structure to the CDR output stream. 153: * Writes the integer identifier of the tag, then the size of the tag data 154: * and then the specified number of bytes, representing the data 155: * of the tag. 156: * 157: * @param output a org.omg.CORBA.portable stream stream to write into. 158: * @param value a value to write. 159: */ 160: public static void write(OutputStream output, TaggedComponent value) 161: { 162: output.write_long(value.tag); 163: output.write_long(value.component_data.length); 164: for (int i0 = 0; i0 < value.component_data.length; i0++) 165: output.write_octet(value.component_data [ i0 ]); 166: }
GNU Classpath (0.17) |