| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache license, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the license for the specific language governing permissions and |
| * limitations under the license. |
| */ |
| package org.apache.logging.log4j.core.net; |
| |
| import java.io.OutputStream; |
| import java.io.Serializable; |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.logging.log4j.core.Layout; |
| import org.apache.logging.log4j.core.appender.ManagerFactory; |
| import org.apache.logging.log4j.util.Strings; |
| |
| /** |
| * Socket Manager for UDP connections. |
| */ |
| public class DatagramSocketManager extends AbstractSocketManager { |
| |
| private static final DatagramSocketManagerFactory FACTORY = new DatagramSocketManagerFactory(); |
| |
| /** |
| * The Constructor. |
| * @param name The unique name of the connection. |
| * @param os The OutputStream. |
| * @param inetAddress |
| * @param host The host to connect to. |
| * @param port The port on the host. |
| * @param layout The layout |
| * @param bufferSize The buffer size |
| */ |
| protected DatagramSocketManager(final String name, final OutputStream os, final InetAddress inetAddress, final String host, |
| final int port, final Layout<? extends Serializable> layout, final int bufferSize) { |
| super(name, os, inetAddress, host, port, layout, true, bufferSize); |
| } |
| |
| /** |
| * Obtain a SocketManager. |
| * @param host The host to connect to. |
| * @param port The port on the host. |
| * @param layout The layout. |
| * @param bufferSize The buffer size. |
| * @return A DatagramSocketManager. |
| */ |
| public static DatagramSocketManager getSocketManager(final String host, final int port, |
| final Layout<? extends Serializable> layout, final int bufferSize) { |
| if (Strings.isEmpty(host)) { |
| throw new IllegalArgumentException("A host name is required"); |
| } |
| if (port <= 0) { |
| throw new IllegalArgumentException("A port value is required"); |
| } |
| return (DatagramSocketManager) getManager("UDP:" + host + ':' + port, |
| new FactoryData(host, port, layout, bufferSize), FACTORY); |
| } |
| |
| /** |
| * Gets this DatagramSocketManager's content format. Specified by: |
| * <ul> |
| * <li>Key: "protocol" Value: "udp"</li> |
| * <li>Key: "direction" Value: "out"</li> |
| * </ul> |
| * |
| * @return Map of content format keys supporting DatagramSocketManager |
| */ |
| @Override |
| public Map<String, String> getContentFormat() { |
| final Map<String, String> result = new HashMap<>(super.getContentFormat()); |
| result.put("protocol", "udp"); |
| result.put("direction", "out"); |
| return result; |
| } |
| |
| /** |
| * Data for the factory. |
| */ |
| private static class FactoryData { |
| private final String host; |
| private final int port; |
| private final Layout<? extends Serializable> layout; |
| private final int bufferSize; |
| |
| public FactoryData(final String host, final int port, final Layout<? extends Serializable> layout, final int bufferSize) { |
| this.host = host; |
| this.port = port; |
| this.layout = layout; |
| this.bufferSize = bufferSize; |
| } |
| } |
| |
| /** |
| * Factory to create the DatagramSocketManager. |
| */ |
| private static class DatagramSocketManagerFactory implements ManagerFactory<DatagramSocketManager, FactoryData> { |
| |
| @Override |
| public DatagramSocketManager createManager(final String name, final FactoryData data) { |
| InetAddress inetAddress; |
| try { |
| inetAddress = InetAddress.getByName(data.host); |
| } catch (final UnknownHostException ex) { |
| LOGGER.error("Could not find address of " + data.host, ex); |
| return null; |
| } |
| final OutputStream os = new DatagramOutputStream(data.host, data.port, data.layout.getHeader(), |
| data.layout.getFooter()); |
| return new DatagramSocketManager(name, os, inetAddress, data.host, data.port, data.layout, data.bufferSize); |
| } |
| } |
| } |