001/* DynAnyFactoryHelper.java -- 002 Copyright (C) 2005, 2006 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039 040package org.omg.DynamicAny; 041 042import gnu.CORBA.Minor; 043import gnu.CORBA.OrbRestricted; 044 045import org.omg.CORBA.BAD_OPERATION; 046import org.omg.CORBA.BAD_PARAM; 047import org.omg.CORBA.TypeCode; 048import org.omg.CORBA.Any; 049import org.omg.CORBA.portable.InputStream; 050import org.omg.CORBA.MARSHAL; 051import org.omg.CORBA.portable.OutputStream; 052 053/** 054 * The helper operations for {@link DynAnyFactory}. Following the 1.5 JDK 055 * specifications, DynAnyFactory is always a local object, so the two methods of 056 * this helper ({@link #read} and {@link #write} are not in use, always 057 * throwing {@link MARSHAL}. 058 * 059 * @specnote always throwing MARSHAL in read and write ensures compatibility 060 * with other popular implementations like Sun's. 061 * 062 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 063 */ 064public abstract class DynAnyFactoryHelper 065{ 066 /** 067 * Cast the passed object into the DynAnyFactory. As DynAnyFactory is a local 068 * object, the method just uses java final_type cast. 069 * 070 * @param obj the object to narrow. 071 * @return narrowed instance. 072 * @throws BAD_PARAM if the passed object is not a DynAnyFactory. 073 */ 074 public static DynAnyFactory narrow(org.omg.CORBA.Object obj) 075 { 076 try 077 { 078 return (DynAnyFactory) obj; 079 } 080 catch (ClassCastException cex) 081 { 082 throw new BAD_PARAM(obj.getClass().getName() 083 + " is not a DynAnyFactory"); 084 } 085 } 086 087 /** 088 * Narrow the given object to the DynAnyFactory. For the objects that are 089 * always local, this operation does not differ from the ordinary 090 * {@link #narrow} (ClassCastException will be thrown if narrowing something 091 * different). See also OMG issue 4158. 092 * 093 * @param obj the object to cast. 094 * 095 * @return the casted DynAnyFactory. 096 * 097 * @since 1.5 098 */ 099 public static DynAnyFactory unchecked_narrow(org.omg.CORBA.Object obj) 100 { 101 return narrow(obj); 102 } 103 104 /** 105 * Get the final_type code of the {@link DynAnyFactory}. 106 */ 107 public static TypeCode type() 108 { 109 return OrbRestricted.Singleton.create_interface_tc(id(), "DynAnyFactory"); 110 } 111 112 /** 113 * Insert the DynAnyFactory into the given Any. 114 * 115 * @param any the Any to insert into. 116 * 117 * @param that the DynAnyFactory to insert. 118 */ 119 public static void insert(Any any, DynAnyFactory that) 120 { 121 any.insert_Object(that); 122 } 123 124 /** 125 * Extract the DynAnyFactory from given Any. 126 * 127 * @throws BAD_OPERATION if the passed Any does not contain DynAnyFactory. 128 */ 129 public static DynAnyFactory extract(Any any) 130 { 131 return narrow(any.extract_Object()); 132 } 133 134 /** 135 * Get the DynAnyFactory repository id. 136 * 137 * @return "IDL:omg.org/DynamicAny/DynAnyFactory:1.0", always. 138 */ 139 public static String id() 140 { 141 return "IDL:omg.org/DynamicAny/DynAnyFactory:1.0"; 142 } 143 144 /** 145 * This should read DynAnyFactory from the CDR input stream, but (following 146 * the JDK 1.5 API) it does not. The factory can only be obtained from the 147 * ORB. 148 * 149 * @param input a org.omg.CORBA.portable stream to read from. 150 * 151 * @specenote Sun throws the same exception. 152 * 153 * @throws MARSHAL always. 154 */ 155 public static DynAnyFactory read(InputStream input) 156 { 157 throw new MARSHAL(not_applicable(id())); 158 } 159 160 /** 161 * This should read DynAnyFactory from the CDR input stream, but (following 162 * the JDK 1.5 API) it does not. 163 * 164 * @param output a org.omg.CORBA.portable stream to write into. 165 * 166 * @specenote Sun throws the same exception. 167 * 168 * @throws MARSHAL always. 169 */ 170 public static void write(OutputStream output, DynAnyFactory value) 171 { 172 throw new MARSHAL(not_applicable(id())); 173 } 174 175 /** 176 * The package level method for throwing exception, explaining that the 177 * operation is not applicable. 178 * 179 * @param Id the Id for the typecode for that the operations was attempted to 180 * perform. 181 */ 182 static String not_applicable(String Id) 183 { 184 MARSHAL m = new MARSHAL("The read/write are not applicable for " + Id); 185 m.minor = Minor.Inappropriate; 186 throw m; 187 } 188}