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1: /* POAHelper.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.PortableServer; 40: 41: import org.omg.CORBA.BAD_PARAM; 42: import org.omg.CORBA.TypeCode; 43: import org.omg.CORBA.ORB; 44: import org.omg.CORBA.Any; 45: import org.omg.CORBA.portable.InputStream; 46: import org.omg.CORBA.MARSHAL; 47: import org.omg.CORBA.portable.OutputStream; 48: 49: /** 50: * The helper operations for the CORBA object {@link POA}. 51: * 52: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 53: */ 54: public abstract class POAHelper 55: { 56: /** 57: * Cast the passed object into the POA. As POA is a local object, the method 58: * just uses java type cast. 59: * 60: * @param obj the object to narrow. 61: * @return narrowed instance. 62: * @throws BAD_PARAM if the passed object is not a POA. 63: */ 64: public static POA narrow(org.omg.CORBA.Object obj) 65: { 66: try 67: { 68: return (POA) obj; 69: } 70: catch (ClassCastException cex) 71: { 72: throw new BAD_PARAM(obj.getClass().getName() + " is not a POA"); 73: } 74: } 75: 76: /** 77: * Get the type code of the {@link POA}. 78: */ 79: public static TypeCode type() 80: { 81: return ORB.init().create_interface_tc(id(), "POA"); 82: } 83: 84: /** 85: * Insert the POA into the given Any. 86: * 87: * @param any the Any to insert into. 88: * 89: * @param that the POA to insert. 90: */ 91: public static void insert(Any any, POA that) 92: { 93: any.insert_Object(that); 94: } 95: 96: /** 97: * Extract the POA from given Any. 98: * 99: * @throws BAD_OPERATION if the passed Any does not contain POA. 100: */ 101: public static POA extract(Any any) 102: { 103: return narrow(any.extract_Object()); 104: } 105: 106: /** 107: * Get the POA repository id. 108: * 109: * @return "IDL:omg.org/PortableServer/POA:2.3", always. 110: */ 111: public static String id() 112: { 113: return "IDL:omg.org/PortableServer/POA:2.3"; 114: } 115: 116: /** 117: * This should read POA from the CDR input stream, but, following the specs, 118: * it doesnot. The jdk 1.5 API specification defines that POA cannot be 119: * exported. 120: * 121: * @param input a org.omg.CORBA.portable stream to read from. 122: * 123: * @specenote Sun throws the same exception. 124: * 125: * @throws MARSHAL, always. 126: */ 127: public static POA read(InputStream input) 128: { 129: throw new MARSHAL("Not applicable"); 130: } 131: 132: /** 133: * This should read POA from the CDR input stream, but, following the specs, 134: * it doesnot. The jdk 1.5 API specification defines that POA cannot be 135: * exported. 136: * 137: * @param input a org.omg.CORBA.portable stream to read from. 138: * 139: * @specenote Sun throws the same exception. 140: * 141: * @throws MARSHAL, always. 142: */ 143: public static void write(OutputStream output, POA value) 144: { 145: throw new MARSHAL("Not applicable"); 146: }
GNU Classpath (0.18) |