// Copyright 1996-2000, International Business Machines
// Corporation. All Rights Reserved.
// Copyright 2000, Ceki Gulcu. All Rights Reserved.
// See the LICENCE file for the terms of usage and distribution.
package org.apache.log4j.net;
import java.net.InetAddress;
import java.net.Socket;
import java.net.ServerSocket;
import java.io.InputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import org.apache.log4j.Category;
import org.apache.log4j.Hierarchy;
import org.apache.log4j.spi.LoggingEvent;
import org.apache.log4j.Priority;
import org.apache.log4j.NDC;
// Contributors: Moses Hohman <mmhohman@rainbow.uchicago.edu>
/**
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;
Hierarchy hierarchy;
ObjectInputStream ois;
static Category cat = Category.getInstance(SocketNode.class.getName());
public
SocketNode(Socket socket, Hierarchy hierarchy) {
this.socket = socket;
this.hierarchy = hierarchy;
try {
ois = new ObjectInputStream(socket.getInputStream());
}
catch(Exception e) {
cat.error("Could not open ObjectInputStream to "+socket, e);
}
}
//public
//void finalize() {
//System.err.println("-------------------------Finalize called");
// System.err.flush();
//}
public void run() {
LoggingEvent event;
Category remoteCategory;
try {
while(true) {
event = (LoggingEvent) ois.readObject();
remoteCategory = hierarchy.getInstance(event.categoryName);
event.category = remoteCategory;
if(event.priority.isGreaterOrEqual(remoteCategory.getChainedPriority())) {
remoteCategory.callAppenders(event);
}
}
}
catch(java.io.EOFException e) {
cat.info("Caught java.io.EOFException closing conneciton.");
}
catch(java.net.SocketException e) {
cat.info("Caught java.net.SocketException closing conneciton.");
}
catch(Exception e) {
cat.error("Unexpected exception. Closing conneciton.", e);
}
try {
ois.close();
}
catch(Exception e) {
cat.info("Could not close connection.", e);
}
}
}