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1: /* UnionMemberHelper.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.CORBA; 40: 41: import gnu.CORBA.Minor; 42: import gnu.CORBA.OrbRestricted; 43: import gnu.CORBA.TypeCodeHelper; 44: 45: import org.omg.CORBA.portable.InputStream; 46: import org.omg.CORBA.portable.OutputStream; 47: 48: /** 49: * A helper operations for the union member. 50: * 51: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 52: */ 53: public abstract class UnionMemberHelper 54: { 55: /** 56: * The cached typecode value (computed once). 57: */ 58: private static TypeCode typeCode; 59: 60: /** 61: * Used in creating recursive unions. 62: */ 63: private static boolean active; 64: 65: /** 66: * Inset the union member into the given Any. 67: */ 68: public static void insert(Any a, UnionMember that) 69: { 70: OutputStream out = a.create_output_stream(); 71: a.type(type()); 72: write(out, that); 73: a.read_value(out.create_input_stream(), type()); 74: } 75: 76: /** 77: * Extract the union member from the given Any. 78: */ 79: public static UnionMember extract(Any a) 80: { 81: return read(a.create_input_stream()); 82: } 83: 84: /** 85: * Create and return the typecode for this union member. 86: */ 87: public static synchronized TypeCode type() 88: { 89: if (typeCode == null) 90: { 91: synchronized (TypeCode.class) 92: { 93: if (typeCode == null) 94: { 95: if (active) 96: { 97: return OrbRestricted.Singleton.create_recursive_tc(id()); 98: } 99: active = true; 100: 101: ORB orb = OrbRestricted.Singleton; 102: 103: StructMember[] members = new StructMember[ 4 ]; 104: TypeCode member; 105: member = orb.create_string_tc(0); 106: member = 107: orb.create_alias_tc(IdentifierHelper.id(), "Identifier", 108: member 109: ); 110: members [ 0 ] = new StructMember("name", member, null); 111: member = orb.get_primitive_tc(TCKind.tk_any); 112: members [ 1 ] = new StructMember("label", member, null); 113: member = orb.create_string_tc(0); 114: member = orb.get_primitive_tc(TCKind.tk_TypeCode); 115: members [ 2 ] = new StructMember("type", member, null); 116: member = IDLTypeHelper.type(); 117: members [ 3 ] = new StructMember("type_def", member, null); 118: typeCode = 119: orb.create_struct_tc(UnionMemberHelper.id(), "UnionMember", 120: members 121: ); 122: active = false; 123: } 124: } 125: } 126: return typeCode; 127: } 128: 129: /** 130: * Return the UnionMember repository id. 131: * 132: * @return "IDL:omg.org/CORBA/UnionMember:1.0", always. 133: */ 134: public static String id() 135: { 136: return "IDL:omg.org/CORBA/UnionMember:1.0"; 137: } 138: 139: /** 140: * Read the union member from the given stream. 141: */ 142: public static UnionMember read(InputStream istream) 143: { 144: try 145: { 146: UnionMember value = new UnionMember(); 147: value.name = istream.read_string(); 148: value.label = istream.read_any(); 149: value.type = TypeCodeHelper.read(istream); 150: value.type_def = IDLTypeHelper.read(istream); 151: return value; 152: } 153: catch (UserException ex) 154: { 155: MARSHAL m = new MARSHAL(); 156: m.minor = Minor.UserException; 157: m.initCause(ex); 158: throw m; 159: } 160: } 161: 162: /** 163: * Write the union member to the given stream. 164: */ 165: public static void write(OutputStream ostream, UnionMember value) 166: { 167: try 168: { 169: ostream.write_string(value.name); 170: ostream.write_any(value.label); 171: TypeCodeHelper.write(ostream, value.type); 172: IDLTypeHelper.write(ostream, value.type_def); 173: } 174: catch (UserException ex) 175: { 176: MARSHAL m = new MARSHAL(); 177: m.minor = Minor.UserException; 178: m.initCause(ex); 179: throw m; 180: } 181: }
GNU Classpath (0.95) |