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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: */ 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: */ 174: public String[] _ids() 175: { 176: return new String[ 0 ]; 177: } 178: }