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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 gnu.CORBA.Minor; 42: 43: import org.omg.CORBA.BAD_PARAM; 44: import org.omg.CORBA.TypeCode; 45: import org.omg.CORBA.ORB; 46: import org.omg.CORBA.Any; 47: import org.omg.CORBA.portable.InputStream; 48: import org.omg.CORBA.MARSHAL; 49: import org.omg.CORBA.portable.OutputStream; 50: 51: /** 52: * The helper operations for the CORBA object {@link POA}. 53: * 54: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 55: */ 56: public abstract class POAHelper 57: { 58: /** 59: * Cast the passed object into the POA. As POA is a local object, the method 60: * just uses java type cast. 61: * 62: * @param obj the object to narrow. 63: * @return narrowed instance. 64: * @throws BAD_PARAM if the passed object is not a POA. 65: */ 66: public static POA narrow(org.omg.CORBA.Object obj) 67: { 68: try 69: { 70: return (POA) obj; 71: } 72: catch (ClassCastException cex) 73: { 74: throw new BAD_PARAM(obj.getClass().getName() + " is not a POA"); 75: } 76: } 77: 78: /** 79: * Get the type code of the {@link POA}. 80: */ 81: public static TypeCode type() 82: { 83: return ORB.init().create_interface_tc(id(), "POA"); 84: } 85: 86: /** 87: * Insert the POA into the given Any. 88: * 89: * @param any the Any to insert into. 90: * 91: * @param that the POA to insert. 92: */ 93: public static void insert(Any any, POA that) 94: { 95: any.insert_Object(that); 96: } 97: 98: /** 99: * Extract the POA from given Any. 100: * 101: * @throws BAD_OPERATION if the passed Any does not contain POA. 102: */ 103: public static POA extract(Any any) 104: { 105: return narrow(any.extract_Object()); 106: } 107: 108: /** 109: * Get the POA repository id. 110: * 111: * @return "IDL:omg.org/PortableServer/POA:2.3", always. 112: */ 113: public static String id() 114: { 115: return "IDL:omg.org/PortableServer/POA:2.3"; 116: } 117: 118: /** 119: * This should read POA from the CDR input stream, but, following the specs, 120: * it doesnot. The jdk 1.5 API specification defines that POA cannot be 121: * exported. 122: * 123: * @param input a org.omg.CORBA.portable stream to read from. 124: * 125: * @specenote Sun throws the same exception. 126: * 127: * @throws MARSHAL, always. 128: */ 129: public static POA read(InputStream input) 130: { 131: MARSHAL m = new MARSHAL("Inappropriate"); 132: m.minor = Minor.Inappropriate; 133: throw m; 134: } 135: 136: /** 137: * This should read POA from the CDR input stream, but, following the specs, 138: * it doesnot. The jdk 1.5 API specification defines that POA cannot be 139: * exported. 140: * 141: * @param input a org.omg.CORBA.portable stream to read from. 142: * 143: * @specenote Sun throws the same exception. 144: * 145: * @throws MARSHAL, always. 146: */ 147: public static void write(OutputStream output, POA value) 148: { 149: MARSHAL m = new MARSHAL("Inappropriate"); 150: m.minor = Minor.Inappropriate; 151: throw m; 152: }
GNU Classpath (0.20) |