001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017 package org.apache.logging.log4j.core.net; 018 019 import org.apache.logging.log4j.core.appender.ManagerFactory; 020 021 import java.io.OutputStream; 022 023 /** 024 * Socket Manager for UDP connections. 025 */ 026 public class DatagramSocketManager extends AbstractSocketManager { 027 028 private static final DatagramSocketManagerFactory FACTORY = new DatagramSocketManagerFactory(); 029 030 /** 031 * The Constructor. 032 * @param os The OutputStream. 033 * @param name The unique name of the connection. 034 * @param host The host to connect to. 035 * @param port The port on the host. 036 */ 037 protected DatagramSocketManager(final OutputStream os, final String name, final String host, final int port) { 038 super(name, os, null, host, port); 039 } 040 041 /** 042 * Obtain a SocketManager. 043 * @param host The host to connect to. 044 * @param port The port on the host. 045 * @return A DatagramSocketManager. 046 */ 047 public static DatagramSocketManager getSocketManager(final String host, final int port) { 048 if (host == null || host.length() == 0) { 049 throw new IllegalArgumentException("A host name is required"); 050 } 051 if (port <= 0) { 052 throw new IllegalArgumentException("A port value is required"); 053 } 054 return (DatagramSocketManager) getManager("UDP:" + host + ":" + port, new FactoryData(host, port), FACTORY 055 ); 056 } 057 058 /** 059 * Data for the factory. 060 */ 061 private static class FactoryData { 062 private final String host; 063 private final int port; 064 065 public FactoryData(final String host, final int port) { 066 this.host = host; 067 this.port = port; 068 } 069 } 070 071 /** 072 * Factory to create the DatagramSocketManager. 073 */ 074 private static class DatagramSocketManagerFactory implements ManagerFactory<DatagramSocketManager, FactoryData> { 075 076 public DatagramSocketManager createManager(final String name, final FactoryData data) { 077 final OutputStream os = new DatagramOutputStream(data.host, data.port); 078 return new DatagramSocketManager(os, name, data.host, data.port); 079 } 080 } 081 }