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1: /* BindingIteratorHelper.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 {@link BindingIterator} 55: * 56: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 57: */ 58: public abstract class BindingIteratorHelper 59: { 60: /** 61: * The {@link BindingIterator} repository id. 62: */ 63: private static String _id = "IDL:omg.org/CosNaming/BindingIterator:1.0"; 64: 65: /** 66: * The cached type code value. 67: */ 68: private static TypeCode typeCode = null; 69: 70: /** 71: * Extract the binding iterator from the given {@link Any}. 72: */ 73: public static BindingIterator extract(Any a) 74: { 75: try 76: { 77: return ((BindingIteratorHolder) a.extract_Streamable()).value; 78: } 79: catch (ClassCastException ex) 80: { 81: BAD_OPERATION bad = new BAD_OPERATION("Binding iterator expected"); 82: bad.initCause(ex); 83: bad.minor = Minor.Any; 84: throw bad; 85: } 86: } 87: 88: /** 89: * Return the binding iterator repository id. 90: */ 91: public static String id() 92: { 93: return _id; 94: } 95: 96: /** 97: * Insert the binding iterator into the given {@link Any}. 98: */ 99: public static void insert(Any a, BindingIterator that) 100: { 101: a.insert_Streamable(new BindingIteratorHolder(that)); 102: } 103: 104: /** 105: * Narrow the given object to the BindingIterator. The narrowing 106: * means either direct casting or re-instantiating with the same 107: * delegate. 108: * 109: * @param obj the object to cast. 110: * 111: * @return the casted binding iterator. 112: */ 113: public static BindingIterator narrow(org.omg.CORBA.Object obj) 114: { 115: if (obj == null) 116: return null; 117: else if (obj instanceof BindingIterator) 118: return (BindingIterator) obj; 119: else if (!obj._is_a(id())) 120: throw new BAD_PARAM(); 121: else 122: { 123: Delegate delegate = ((ObjectImpl) obj)._get_delegate(); 124: return new _BindingIteratorStub(delegate); 125: } 126: } 127: 128: /** 129: * Narrow the given object to the BindingIterator. No type-checking is 130: * performed to verify that the object actually supports the requested type. 131: * The {@link BAD_OPERATION} will be thrown if unsupported operations are 132: * invoked on the new returned reference, but no failure is expected at the 133: * time of the unchecked_narrow. 134: * 135: * @param obj the object to cast. 136: * 137: * @return the casted binding iterator. 138: * 139: * @since 1.5 140: * 141: * @see OMG issue 4158. 142: */ 143: public static BindingIterator unchecked_narrow(org.omg.CORBA.Object obj) 144: { 145: if (obj == null) 146: return null; 147: else if (obj instanceof BindingIterator) 148: return (BindingIterator) obj; 149: else 150: { 151: // Do not call the _is_a(..). 152: Delegate delegate = ((ObjectImpl) obj)._get_delegate(); 153: return new _BindingIteratorStub(delegate); 154: } 155: } 156: 157: /** 158: * Read the exception from the given CDR stream. 159: */ 160: public static BindingIterator read(InputStream istream) 161: { 162: return narrow(istream.read_Object(_BindingIteratorStub.class)); 163: } 164: 165: /** 166: * Create the type code for the BindingIterator. 167: */ 168: public static TypeCode type() 169: { 170: if (typeCode == null) 171: typeCode = ORB.init().create_interface_tc(id(), "BindingIterator"); 172: return typeCode; 173: } 174: 175: /** 176: * Write the exception to the CDR output stream. 177: */ 178: public static void write(OutputStream ostream, BindingIterator value) 179: { 180: ostream.write_Object((org.omg.CORBA.Object) value); 181: } 182: }
GNU Classpath (0.20) |