1 /* DynamicImplementation.java -- 2 Copyright (C) 2005, 2006 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.CORBA; 40 41 import gnu.CORBA.Unexpected; 42 import gnu.CORBA.gnuAny; 43 import gnu.CORBA.gnuNVList; 44 45 import org.omg.CORBA.portable.ObjectImpl; 46 import org.omg.CORBA.portable.OutputStream; 47 48 /** 49 * This class was probably originally thinked as a base of all CORBA 50 * object implementations. However the code, generated by IDL to 51 * java compilers almost never use it, preferring to derive the 52 * object implementation bases directly from the {@link ObjectImpl}. 53 * The class has become deprecated since the 1.4 release. 54 * 55 * @deprecated since 1.4. 56 * 57 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 58 */ 59 public class DynamicImplementation 60 extends ObjectImpl 61 { 62 /** 63 * Invoke the method of the CORBA object. After converting the parameters, 64 * this method delegates call to the {@link ObjectImpl#_invoke}. 65 * 66 * @deprecated since 1.4. 67 * 68 * @param request the container for both passing and returing the parameters, 69 * also contains the method name and thrown exceptions. 70 */ invoke(ServerRequest request)71 public void invoke(ServerRequest request) 72 { 73 Request r = _request(request.operation()); 74 75 // Copy the parameters. 76 NVList args = new gnuNVList(); 77 request.arguments(args); 78 NamedValue v; 79 int i = 0; 80 81 try 82 { 83 // Set the arguments. 84 for (i = 0; i < args.count(); i++) 85 { 86 v = args.item(i); 87 Any n; 88 OutputStream out; 89 90 switch (v.flags()) 91 { 92 case ARG_IN.value: 93 out = v.value().create_output_stream(); 94 v.value().write_value(out); 95 n = r.add_named_in_arg(v.name()); 96 n.read_value(out.create_input_stream(), v.value().type()); 97 break; 98 case ARG_INOUT.value: 99 out = v.value().create_output_stream(); 100 v.value().write_value(out); 101 n = r.add_named_inout_arg(v.name()); 102 n.read_value(out.create_input_stream(), v.value().type()); 103 break; 104 case ARG_OUT.value: 105 r.add_named_out_arg(v.name()); 106 break; 107 108 default: 109 throw new InternalError("Invalid flags " + v.flags()); 110 } 111 } 112 } 113 catch (Bounds b) 114 { 115 throw new Unexpected(args.count() + "[" + i + "]", b); 116 } 117 118 // Set context. 119 r.ctx(request.ctx()); 120 121 // Set the return type (expects that the ServerRequest will initialise 122 // the passed Any. 123 124 gnuAny g = new gnuAny(); 125 request.result(g); 126 r.set_return_type(g.type()); 127 128 // Invoke the method. 129 r.invoke(); 130 131 // Transfer the returned values. 132 NVList r_args = r.arguments(); 133 134 try 135 { 136 // API states that the ServerRequest.arguments must be called only 137 // once. Hence we assume we can just modify the previously returned 138 // value <code>args</code>, and the ServerRequest will preserve the 139 // reference. 140 for (i = 0; i < args.count(); i++) 141 { 142 v = args.item(i); 143 144 if (v.flags() == ARG_OUT.value || v.flags() == ARG_INOUT.value) 145 { 146 OutputStream out = r_args.item(i).value().create_output_stream(); 147 r_args.item(i).value().write_value(out); 148 v.value().read_value(out.create_input_stream(), 149 v.value().type()); 150 } 151 } 152 } 153 catch (Bounds b) 154 { 155 throw new Unexpected(args.count() + "[" + i + "]", b); 156 } 157 158 // Set the returned result (if any). 159 NamedValue returns = r.result(); 160 if (returns != null) 161 request.set_result(returns.value()); 162 } 163 164 /** 165 * Returns the array of the repository ids, supported by this object. 166 * In this implementation, the method must be overrridden to return 167 * a sendible object-specific information. The default method returns 168 * an empty array. 169 * 170 * @deprecated since 1.4. 171 * 172 * @return the empty array, always. 173 */ _ids()174 public String[] _ids() 175 { 176 return new String[ 0 ]; 177 } 178 } 179