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1: /* StructMemberHelper.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.Restricted_ORB; 42: import gnu.CORBA.TypeCodeHelper; 43: 44: import org.omg.CORBA.portable.InputStream; 45: import org.omg.CORBA.portable.OutputStream; 46: 47: /** 48: * Defines a helper operations for StructMember. 49: * 50: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 51: */ 52: public abstract class StructMemberHelper 53: { 54: /** 55: * The cached typecode value, computed once. 56: */ 57: private static TypeCode typeCode; 58: 59: /** 60: * This flag is used when creating typecodes for the recursive structures. 61: */ 62: private static boolean active; 63: 64: /** 65: * Insert the structure member into the given Any. 66: */ 67: public static void insert(Any a, StructMember that) 68: { 69: OutputStream out = a.create_output_stream(); 70: a.type(type()); 71: write(out, that); 72: a.read_value(out.create_input_stream(), type()); 73: } 74: 75: /** 76: * Extract the structure member from the given Any. 77: */ 78: public static StructMember extract(Any a) 79: { 80: return read(a.create_input_stream()); 81: } 82: 83: /** 84: * Get a typecode for the StructMember. 85: */ 86: public static synchronized TypeCode type() 87: { 88: if (typeCode == null) 89: { 90: ORB orb = Restricted_ORB.Singleton; 91: 92: synchronized (TypeCode.class) 93: { 94: if (typeCode == null) 95: { 96: if (active) 97: { 98: return orb.create_recursive_tc(id()); 99: } 100: active = true; 101: 102: StructMember[] members = new StructMember[ 3 ]; 103: TypeCode member = null; 104: 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: 112: member = orb.get_primitive_tc(TCKind.tk_TypeCode); 113: 114: members [ 1 ] = new StructMember("type", member, null); 115: members [ 2 ] = 116: new StructMember("type_def", IDLTypeHelper.type(), null); 117: typeCode = 118: orb.create_struct_tc(StructMemberHelper.id(), "StructMember", 119: members 120: ); 121: active = false; 122: } 123: } 124: } 125: return typeCode; 126: } 127: 128: /** 129: * Return the StructMember repository id. 130: * 131: * @return "IDL:omg.org/CORBA/StructMember:1.0", always. 132: */ 133: public static String id() 134: { 135: return "IDL:omg.org/CORBA/StructMember:1.0"; 136: } 137: 138: /** 139: * Read the StructMember from the input stream. 140: */ 141: public static StructMember read(InputStream istream) 142: { 143: try 144: { 145: StructMember value = new StructMember(); 146: value.name = istream.read_string(); 147: value.type = TypeCodeHelper.read(istream); 148: value.type_def = IDLTypeHelper.read(istream); 149: return value; 150: } 151: catch (UserException ex) 152: { 153: MARSHAL m = new MARSHAL(); 154: m.initCause(ex); 155: throw m; 156: } 157: } 158: 159: /** 160: * Write the StructMember to the input stream. 161: */ 162: public static void write(OutputStream ostream, StructMember value) 163: { 164: try 165: { 166: ostream.write_string(value.name); 167: TypeCodeHelper.write(ostream, value.type); 168: IDLTypeHelper.write(ostream, value.type_def); 169: } 170: catch (UserException ex) 171: { 172: MARSHAL m = new MARSHAL(); 173: m.initCause(ex); 174: throw m; 175: } 176: }
GNU Classpath (0.17) |