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1: /* NamingContextExtHelper.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.CosNaming; 40: 41: import gnu.CORBA.Minor; 42: 43: import org.omg.CORBA.Any; 44: import org.omg.CORBA.BAD_OPERATION; 45: import org.omg.CORBA.BAD_PARAM; 46: import org.omg.CORBA.ORB; 47: import org.omg.CORBA.TypeCode; 48: import org.omg.CORBA.portable.Delegate; 49: import org.omg.CORBA.portable.InputStream; 50: import org.omg.CORBA.portable.ObjectImpl; 51: import org.omg.CORBA.portable.OutputStream; 52: 53: /** 54: * The helper operations for the extended naming context. 55: * 56: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 57: */ 58: public abstract class NamingContextExtHelper 59: { 60: /** 61: * The naming context repository id. 62: */ 63: private static String _id = "IDL:omg.org/CosNaming/NamingContextExt:1.0"; 64: 65: /** 66: * The cached {@link NamingContextExt} typecode. 67: */ 68: private static TypeCode typeCode = null; 69: 70: /** 71: * Extract the naming context from the given {@link Any}. 72: */ 73: public static NamingContextExt extract(Any a) 74: { 75: try 76: { 77: return ((NamingContextExtHolder) a.extract_Streamable()).value; 78: } 79: catch (ClassCastException ex) 80: { 81: BAD_OPERATION bad = new BAD_OPERATION("NamingContextExt expected"); 82: bad.initCause(ex); 83: bad.minor = Minor.Any; 84: throw bad; 85: } 86: } 87: 88: /** 89: * Get the {@link NamingContextExt} repository id. 90: */ 91: public static String id() 92: { 93: return _id; 94: } 95: 96: /** 97: * Insert the naming context into the given {@link Any} 98: */ 99: public static void insert(Any a, NamingContextExt that) 100: { 101: a.insert_Streamable(new NamingContextExtHolder(that)); 102: } 103: 104: /** 105: * Cast the passed object into the NamingContextExt. If the 106: * object has a different java type, create an instance 107: * of the NamingContextExt, using the same delegate, as for 108: * the passed parameter. Hence this method may return 109: * a different object, than has been passed. 110: * 111: * @param obj the object to cast. 112: * @return casted instance. 113: */ 114: public static NamingContextExt narrow(org.omg.CORBA.Object obj) 115: { 116: if (obj == null) 117: return null; 118: else if (obj instanceof NamingContextExt) 119: return (NamingContextExt) obj; 120: else if (!obj._is_a(id())) 121: throw new BAD_PARAM(); 122: else 123: { 124: Delegate delegate = ((ObjectImpl) obj)._get_delegate(); 125: return new _NamingContextExtStub(delegate); 126: } 127: } 128: 129: /** 130: * Narrow the given object to the NamingContextExt. No type-checking is 131: * performed to verify that the object actually supports the requested type. 132: * The {@link BAD_OPERATION} will be thrown if unsupported operations are 133: * invoked on the new returned reference, but no failure is expected at the 134: * time of the unchecked_narrow. 135: * 136: * @param obj the object to cast. 137: * 138: * @return the casted NamingContextExt 139: * 140: * @since 1.5 141: * 142: * @see OMG issue 4158. 143: */ 144: public static NamingContextExt unchecked_narrow(org.omg.CORBA.Object obj) 145: { 146: if (obj == null) 147: return null; 148: else if (obj instanceof NamingContextExt) 149: return (NamingContextExt) obj; 150: else 151: { 152: // Do not call the _is_a(..). 153: Delegate delegate = ((ObjectImpl) obj)._get_delegate(); 154: return new _NamingContextExtStub(delegate); 155: } 156: } 157: 158: /** 159: * Read the extended naming context from the given CDR input stream. 160: */ 161: public static NamingContextExt read(InputStream istream) 162: { 163: return narrow(istream.read_Object(_NamingContextExtStub.class)); 164: } 165: 166: /** 167: * Get the type code of the {@link NamingContextExt}. 168: */ 169: public static TypeCode type() 170: { 171: if (typeCode == null) 172: typeCode = 173: ORB.init().create_interface_tc(NamingContextExtHelper.id(), 174: "NamingContextExt" 175: ); 176: return typeCode; 177: } 178: 179: /** 180: * Write the given extended naming context into the given CDR output stream. 181: */ 182: public static void write(OutputStream ostream, NamingContextExt value) 183: { 184: ostream.write_Object(value); 185: } 186: }
GNU Classpath (0.20) |