001/* _BindingIteratorImplBase.java -- 002 Copyright (C) 2005 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 039package org.omg.CosNaming; 040 041import gnu.CORBA.Minor; 042 043import org.omg.CORBA.BAD_OPERATION; 044import org.omg.CORBA.BooleanHolder; 045import org.omg.CORBA.CompletionStatus; 046import org.omg.CORBA.DynamicImplementation; 047import org.omg.CORBA.ServerRequest; 048import org.omg.CORBA.portable.InputStream; 049import org.omg.CORBA.portable.InvokeHandler; 050import org.omg.CORBA.portable.OutputStream; 051import org.omg.CORBA.portable.ResponseHandler; 052import org.omg.CORBA.portable.Streamable; 053 054/** 055 * The binding iterator implementation base. 056 * 057 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 058 */ 059public abstract class _BindingIteratorImplBase 060 extends DynamicImplementation 061 implements BindingIterator, InvokeHandler 062{ 063 /** 064 * Use serialVersionUID (v1.4) for interoperability. 065 */ 066 private static final long serialVersionUID = 3472591176635005503L; 067 068 /** 069 * The binding interator repository id. 070 */ 071 private static String[] ids = { BindingIteratorHelper.id() }; 072 073 /** 074 * Return the list of repository ids. 075 */ 076 public String[] _ids() 077 { 078 return ids; 079 } 080 081 /** 082 * Call the required method. 083 */ 084 public OutputStream _invoke(String method, InputStream in, ResponseHandler rh) 085 { 086 OutputStream out = null; 087 088 // We suppose that the next_n should be the most popular. 089 if (method.equals("next_n")) 090 { 091 // The next_n has been invoked. 092 int amount = in.read_ulong(); 093 BindingListHolder a_list = new BindingListHolder(); 094 095 boolean result = next_n(amount, a_list); 096 097 out = rh.createReply(); 098 out.write_boolean(result); 099 BindingListHelper.write(out, a_list.value); 100 } 101 else if (method.equals("next_one")) 102 { 103 // The next_one has been invoked. 104 BindingHolder a_binding = new BindingHolder(); 105 106 boolean result = next_one(a_binding); 107 108 out = rh.createReply(); 109 out.write_boolean(result); 110 BindingHelper.write(out, a_binding.value); 111 } 112 else if (method.equals("destroy")) 113 { 114 // The destroy has been invoked. 115 destroy(); 116 out = rh.createReply(); 117 } 118 else 119 throw new BAD_OPERATION(method, Minor.Method, 120 CompletionStatus.COMPLETED_MAYBE); 121 122 return out; 123 } 124 125 /** 126 * The obsolete invocation using server request. Implemented for 127 * compatibility reasons, but is it more effectinve to use 128 * {@link #_invoke}. 129 * 130 * @param request a server request. 131 */ 132 public void invoke(ServerRequest request) 133 { 134 // "destroy" has a void return type, the two other methods - boolean. 135 Streamable result = 136 request.operation().equals("destroy") ? null : new BooleanHolder(); 137 gnu.CORBA.ServiceRequestAdapter.invoke(request, this, result); 138 } 139}