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The source code/* * Copyright (C) The Apache Software Foundation. All rights reserved. * * This software is published under the terms of the Apache Software License * version 1.1, a copy of which has been included with this distribution in * the LICENSE.txt file. */ package org.apache.log4j.helpers; import java.io.Writer; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.DatagramPacket; import java.net.UnknownHostException; import java.net.SocketException; import java.io.IOException; /** SyslogWriter is a wrapper around the java.net.DatagramSocket class so that it behaves like a java.io.Writer. @since 0.7.3 */ public class SyslogWriter extends Writer { final int SYSLOG_PORT = 514; static String syslogHost; private InetAddress address; private DatagramSocket ds; public SyslogWriter(String syslogHost) { this.syslogHost = syslogHost; try { this.address = InetAddress.getByName(syslogHost); } catch (UnknownHostException e) { LogLog.error("Could not find " + syslogHost + ". All logging will FAIL.", e); } try { this.ds = new DatagramSocket(); } catch (SocketException e) { e.printStackTrace(); LogLog.error("Could not instantiate DatagramSocket to " + syslogHost + ". All logging will FAIL.", e); } } public void write(char[] buf, int off, int len) throws IOException { this.write(new String(buf, off, len)); } public void write(String string) throws IOException { byte[] bytes = string.getBytes(); DatagramPacket packet = new DatagramPacket(bytes, bytes.length, address, SYSLOG_PORT); if(this.ds != null) ds.send(packet); } public void flush() {} public void close() {} } |
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