1 /* DynSequenceHelper.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.DynamicAny; 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 {@link DynSequence}. Following the 1.5 JDK 51 * specifications, DynSequence is always a local object, so the two methods of 52 * this helper ({@link #read} and {@link #write} are not in use, always 53 * throwing {@link MARSHAL}. 54 * 55 * @specnote always throwing MARSHAL in read and write ensures compatibility 56 * with other popular implementations like Sun's. 57 * 58 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 59 */ 60 public abstract class DynSequenceHelper 61 { 62 /** 63 * Cast the passed object into the DynSequence. As DynSequence is a local 64 * object, the method just uses java type cast. 65 * 66 * @param obj the object to narrow. 67 * @return narrowed instance. 68 * @throws BAD_PARAM if the passed object is not a DynSequence. 69 */ narrow(org.omg.CORBA.Object obj)70 public static DynSequence narrow(org.omg.CORBA.Object obj) 71 { 72 try 73 { 74 return (DynSequence) obj; 75 } 76 catch (ClassCastException cex) 77 { 78 throw new BAD_PARAM(obj.getClass().getName() + " is not a DynSequence"); 79 } 80 } 81 82 /** 83 * Narrow the given object to the DynSequence. For the objects that are 84 * always local, this operation does not differ from the ordinary 85 * {@link #narrow} (ClassCastException will be thrown if narrowing something 86 * different). 87 * 88 * @param obj the object to cast. 89 * 90 * @return the casted DynSequence. 91 * 92 * @since 1.5 93 * 94 * @see OMG issue 4158. 95 */ unchecked_narrow(org.omg.CORBA.Object obj)96 public static DynSequence unchecked_narrow(org.omg.CORBA.Object obj) 97 { 98 return narrow(obj); 99 } 100 101 /** 102 * Get the type code of the {@link DynSequence}. 103 */ type()104 public static TypeCode type() 105 { 106 return ORB.init().create_interface_tc(id(), "DynSequence"); 107 } 108 109 /** 110 * Insert the DynSequence into the given Any. 111 * 112 * @param any the Any to insert into. 113 * 114 * @param that the DynSequence to insert. 115 */ insert(Any any, DynSequence that)116 public static void insert(Any any, DynSequence that) 117 { 118 any.insert_Object(that); 119 } 120 121 /** 122 * Extract the DynSequence from given Any. 123 * 124 * @throws BAD_OPERATION if the passed Any does not contain DynSequence. 125 */ extract(Any any)126 public static DynSequence extract(Any any) 127 { 128 return narrow(any.extract_Object()); 129 } 130 131 /** 132 * Get the DynSequence repository id. 133 * 134 * @return "IDL:omg.org/DynamicAny/DynSequence:1.0", always. 135 */ id()136 public static String id() 137 { 138 return "IDL:omg.org/DynamicAny/DynSequence:1.0"; 139 } 140 141 /** 142 * This should read DynSequence from the CDR input stream, but (following the 143 * JDK 1.5 API) it does not. 144 * 145 * @param input a org.omg.CORBA.portable stream to read from. 146 * 147 * @specenote Sun throws the same exception. 148 * 149 * @throws MARSHAL always. 150 */ read(InputStream input)151 public static DynSequence read(InputStream input) 152 { 153 throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id())); 154 } 155 156 /** 157 * This should read DynSequence from the CDR input stream, but (following the 158 * JDK 1.5 API) it does not. 159 * 160 * @param input a org.omg.CORBA.portable stream to read from. 161 * 162 * @specenote Sun throws the same exception. 163 * 164 * @throws MARSHAL always. 165 */ write(OutputStream output, DynSequence value)166 public static void write(OutputStream output, DynSequence value) 167 { 168 throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id())); 169 } 170 }