/*
* 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.log4j.net;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.io.ObjectInputStream;
import java.net.Socket;
import org.apache.log4j.Logger;
import org.apache.log4j.spi.LoggerRepository;
import org.apache.log4j.spi.LoggingEvent;
// Contributors: Moses Hohman <[email protected]>
/**
Read {@link LoggingEvent} objects sent from a remote client using
Sockets (TCP). These logging events are logged according to local
policy, as if they were generated locally.
<p>For example, the socket node might decide to log events to a
local file and also resent them to a second socket node.
@author Ceki Gülcü
@since 0.8.4
*/
public class SocketNode implements Runnable {
Socket socket;
LoggerRepository hierarchy;
ObjectInputStream ois;
static Logger logger = Logger.getLogger(SocketNode.class);
public SocketNode(Socket socket, LoggerRepository hierarchy) {
this.socket = socket;
this.hierarchy = hierarchy;
try {
ois = new ObjectInputStream(
new BufferedInputStream(socket.getInputStream()));
} catch(InterruptedIOException e) {
Thread.currentThread().interrupt();
logger.error("Could not open ObjectInputStream to "+socket, e);
} catch(IOException e) {
logger.error("Could not open ObjectInputStream to "+socket, e);
} catch(RuntimeException e) {
logger.error("Could not open ObjectInputStream to "+socket, e);
}
}
//public
//void finalize() {
//System.err.println("-------------------------Finalize called");
// System.err.flush();
//}
public void run() {
LoggingEvent event;
Logger remoteLogger;
try {
if (ois != null) {
while(true) {
// read an event from the wire
event = (LoggingEvent) ois.readObject();
// get a logger from the hierarchy. The name of the logger is taken to be the name contained in the event.
remoteLogger = hierarchy.getLogger(event.getLoggerName());
//event.logger = remoteLogger;
// apply the logger-level filter
if(event.getLevel().isGreaterOrEqual(remoteLogger.getEffectiveLevel())) {
// finally log the event as if was generated locally
remoteLogger.callAppenders(event);
}
}
}
} catch(java.io.EOFException e) {
logger.info("Caught java.io.EOFException closing conneciton.");
} catch(java.net.SocketException e) {
logger.info("Caught java.net.SocketException closing conneciton.");
} catch(InterruptedIOException e) {
Thread.currentThread().interrupt();
logger.info("Caught java.io.InterruptedIOException: "+e);
logger.info("Closing connection.");
} catch(IOException e) {
logger.info("Caught java.io.IOException: "+e);
logger.info("Closing connection.");
} catch(Exception e) {
logger.error("Unexpected exception. Closing conneciton.", e);
} finally {
if (ois != null) {
try {
ois.close();
} catch(Exception e) {
logger.info("Could not close connection.", e);
}
}
if (socket != null) {
try {
socket.close();
} catch(InterruptedIOException e) {
Thread.currentThread().interrupt();
} catch(IOException ex) {
}
}
}
}
}
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