001 /* 002 Licensed to the Apache Software Foundation (ASF) under one 003 or more contributor license agreements. See the NOTICE file 004 distributed with this work for additional information 005 regarding copyright ownership. The ASF licenses this file 006 to you under the Apache License, Version 2.0 (the 007 "License"); you may not use this file except in compliance 008 with the License. You may obtain a copy of the License at 009 010 http://www.apache.org/licenses/LICENSE-2.0 011 012 Unless required by applicable law or agreed to in writing, 013 software distributed under the License is distributed on an 014 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 KIND, either express or implied. See the License for the 016 specific language governing permissions and limitations 017 under the License. 018 */ 019 package org.apache.wiki.rpc; 020 021 /** 022 * A base class for managing RPC calls. 023 * 024 * @since 2.5.4 025 */ 026 public class RPCManager 027 { 028 /** 029 * Private constructor to prevent initialization. 030 */ 031 protected RPCManager() {} 032 033 /** 034 * Gets an unique RPC ID for a callable object. This is required because a plugin 035 * does not know how many times it is already been invoked. 036 * <p> 037 * The id returned contains only upper and lower ASCII characters and digits, and 038 * it always starts with an ASCII character. Therefore the id is suitable as a 039 * programming language construct directly (e.g. object name). 040 * 041 * @param c An RPCCallable 042 * @return An unique id for the callable. 043 */ 044 public static String getId( RPCCallable c ) 045 { 046 return "RPC"+c.hashCode(); 047 } 048 049 050 }