001 /* _BindingIteratorImplBase.java -- 002 Copyright (C) 2005 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package org.omg.CosNaming; 040 041 import gnu.CORBA.Minor; 042 043 import org.omg.CORBA.BAD_OPERATION; 044 import org.omg.CORBA.BooleanHolder; 045 import org.omg.CORBA.CompletionStatus; 046 import org.omg.CORBA.DynamicImplementation; 047 import org.omg.CORBA.ServerRequest; 048 import org.omg.CORBA.portable.InputStream; 049 import org.omg.CORBA.portable.InvokeHandler; 050 import org.omg.CORBA.portable.OutputStream; 051 import org.omg.CORBA.portable.ResponseHandler; 052 import org.omg.CORBA.portable.Streamable; 053 054 /** 055 * The binding iterator implementation base. 056 * 057 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 058 */ 059 public 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 }