001 /* POAHelper.java -- 002 Copyright (C) 2005, 2006 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package org.omg.PortableServer; 040 041 import gnu.CORBA.Minor; 042 import gnu.CORBA.OrbRestricted; 043 044 import org.omg.CORBA.BAD_OPERATION; 045 import org.omg.CORBA.BAD_PARAM; 046 import org.omg.CORBA.TypeCode; 047 import org.omg.CORBA.Any; 048 import org.omg.CORBA.portable.InputStream; 049 import org.omg.CORBA.MARSHAL; 050 import org.omg.CORBA.portable.OutputStream; 051 052 /** 053 * The helper operations for the CORBA object {@link POA}. 054 * 055 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 056 */ 057 public abstract class POAHelper 058 { 059 /** 060 * Cast the passed object into the POA. As POA is a local object, the method 061 * just uses java type cast. 062 * 063 * @param obj the object to narrow. 064 * @return narrowed instance. 065 * @throws BAD_PARAM if the passed object is not a POA. 066 */ 067 public static POA narrow(org.omg.CORBA.Object obj) 068 { 069 try 070 { 071 return (POA) obj; 072 } 073 catch (ClassCastException cex) 074 { 075 throw new BAD_PARAM(obj.getClass().getName() + " is not a POA"); 076 } 077 } 078 079 /** 080 * Get the type code of the {@link POA}. 081 */ 082 public static TypeCode type() 083 { 084 return OrbRestricted.Singleton.create_interface_tc(id(), "POA"); 085 } 086 087 /** 088 * Insert the POA into the given Any. 089 * 090 * @param any the Any to insert into. 091 * 092 * @param that the POA to insert. 093 */ 094 public static void insert(Any any, POA that) 095 { 096 any.insert_Object(that); 097 } 098 099 /** 100 * Extract the POA from given Any. 101 * 102 * @throws BAD_OPERATION if the passed Any does not contain POA. 103 */ 104 public static POA extract(Any any) 105 { 106 return narrow(any.extract_Object()); 107 } 108 109 /** 110 * Get the POA repository id. 111 * 112 * @return "IDL:omg.org/PortableServer/POA:2.3", always. 113 */ 114 public static String id() 115 { 116 return "IDL:omg.org/PortableServer/POA:2.3"; 117 } 118 119 /** 120 * This should read POA from the CDR input stream, but, following the specs, 121 * it doesnot. The jdk 1.5 API specification defines that POA cannot be 122 * exported. 123 * 124 * @param input a org.omg.CORBA.portable stream to read from. 125 * 126 * @specenote Sun throws the same exception. 127 * 128 * @throws MARSHAL, always. 129 */ 130 public static POA read(InputStream input) 131 { 132 MARSHAL m = new MARSHAL("Inappropriate"); 133 m.minor = Minor.Inappropriate; 134 throw m; 135 } 136 137 /** 138 * This should read POA from the CDR input stream, but, following the specs, 139 * it doesnot. The jdk 1.5 API specification defines that POA cannot be 140 * exported. 141 * 142 * @param output a org.omg.CORBA.portable stream to write into. 143 * 144 * @specenote Sun throws the same exception. 145 * 146 * @throws MARSHAL, always. 147 */ 148 public static void write(OutputStream output, POA value) 149 { 150 MARSHAL m = new MARSHAL("Inappropriate"); 151 m.minor = Minor.Inappropriate; 152 throw m; 153 } 154 }