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1: /* CurrentHelper.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 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.Delegate; 48: import org.omg.CORBA.portable.InputStream; 49: import org.omg.CORBA.portable.ObjectImpl; 50: import org.omg.CORBA.portable.OutputStream; 51: 52: /** 53: * The helper operations for the CORBA object {@link Current}. 54: * 55: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 56: */ 57: public abstract class CurrentHelper 58: { 59: /** 60: * The Current stub (proxy), used on the client side. 61: * The {@link Current} methods should contain the code for remote 62: * invocaton. As there are no methods defined, this class is only 63: * used for the formal support of the 64: * {@link #narrow(org.omg.CORBA.Object)}. 65: */ 66: private static class _CurrentStub 67: extends ObjectImpl 68: implements Current 69: { 70: /** 71: * Create the naming context stub with the given delegate. 72: */ 73: public _CurrentStub(Delegate delegate) 74: { 75: _set_delegate(delegate); 76: } 77: 78: /** 79: * Return the array of repository ids for this object. 80: */ 81: public String[] _ids() 82: { 83: return new String[] { id() }; 84: } 85: } 86: 87: /** 88: * The cached {@link Current} typecode, computed once. 89: */ 90: private static TypeCode typeCode; 91: 92: /** 93: * Get the type code of the {@link Current}. 94: */ 95: public static TypeCode type() 96: { 97: if (typeCode == null) 98: typeCode = ORB.init().create_interface_tc(id(), "Current"); 99: return typeCode; 100: } 101: 102: /** 103: * Insert the Current into the given Any. 104: * 105: * @param any the Any to insert into. 106: * @param that the Current to insert. 107: */ 108: public static void insert(Any any, Current that) 109: { 110: any.insert_Object(that); 111: } 112: 113: /** 114: * Extract the Current from given Any. 115: * 116: * @throws BAD_OPERATION if the passed Any does not contain Current. 117: */ 118: public static Current extract(Any any) 119: { 120: return narrow(any.extract_Object()); 121: } 122: 123: /** 124: * Get the Current repository id. 125: * 126: * @return "IDL:omg.org/CORBA/Current:1.0", always. 127: */ 128: public static String id() 129: { 130: return "IDL:omg.org/CORBA/Current:1.0"; 131: } 132: 133: /** 134: * Cast the passed object into the Current. If the 135: * object has a different java type, create an instance 136: * of the _CurrentStub, using the same delegate, as for 137: * the passed parameter. Hence, unlike java type cast, 138: * this method may return a different object, than has been passed. 139: * 140: * @param obj the object to narrow. 141: * @return narrowed instance. 142: * 143: * @throws BAD_PARAM if the passed object is not a Current. 144: */ 145: public static Current narrow(org.omg.CORBA.Object obj) 146: { 147: if (obj == null) 148: return null; 149: else if (obj instanceof Current) 150: return (Current) obj; 151: else if (!obj._is_a(id())) 152: throw new BAD_PARAM("Not a Current"); 153: else 154: { 155: Delegate delegate = ((ObjectImpl) obj)._get_delegate(); 156: return new _CurrentStub(delegate); 157: } 158: } 159: 160: /** 161: * Read the Current from the CDR intput stream (IOR profile expected). 162: * 163: * @param input a org.omg.CORBA.portable stream to read from. 164: */ 165: public static Current read(InputStream input) 166: { 167: return narrow(input.read_Object()); 168: } 169: 170: /** 171: * Write the Current to the CDR output stream (as IOR profile). 172: * 173: * @param output a org.omg.CORBA.portable stream stream to write into. 174: * @param value a value to write. 175: */ 176: public static void write(OutputStream output, Current value) 177: { 178: output.write_Object(value); 179: }
GNU Classpath (0.20) |