mq5.0-source.main.logger.src.main.java.com.sun.messaging.jmq.util.log.StreamLogHandler Maven / Gradle / Ivy
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/*
* @(#)StreamLogHandler.java 1.8 06/29/07
*/
package com.sun.messaging.jmq.util.log;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;
import com.sun.messaging.jmq.util.log.RollingFileOutputStream;
/**
* A LogHandler that is implemented as a simple OutputStream
* (For example System.err)
*/
public class StreamLogHandler extends LogHandler {
private OutputStream os = null;
public StreamLogHandler() {
}
/**
* Configure the StreamLogHandler with the values contained in
* the passed Properties object. This handler's properties are
* prefixed with the specified prefix.
*
* An example of valid properties are:
*
* jmq.log.console.stream=ERR
* jmq.log.console.output=ERROR|WARNING|INFO
*
* In this case prefix would be "jmq.log.stream"
*
* @param props Properties to get configuration information from
* @param prefix String that this handler's properties are prefixed with
*
* @throws IllegalArgumentException if one or more property values are
* invalid. All valid properties will
* still be set.
*/
public void configure(Properties props, String prefix)
throws IllegalArgumentException {
String value = null;
String property = null;
String error_msg = null;
long bytes = 0L, secs = 0L;;
prefix = prefix + ".";
property = prefix + "stream";
if ((value = props.getProperty(property)) != null) {
if (value.equals("ERR")) {
setLogStream(System.err);
} else if (value.equals("OUT")) {
setLogStream(System.out);
} else {
error_msg = rb.getString(rb.W_BAD_LOGSTREAM, property, value);
}
}
property = prefix + "output";
if ((value = props.getProperty(property)) != null) {
try {
setLevels(value);
} catch (IllegalArgumentException e) {
error_msg = (error_msg != null ? error_msg + rb.NL : "") +
property + ": " + e.getMessage();
}
}
if (error_msg != null) {
throw new IllegalArgumentException(error_msg);
}
}
public void setLogStream(OutputStream os) {
close();
this.os = os;
}
/**
* Publish string to log
*
* @param level Log level to use
* @param message Message to write to log file
*
*/
public void publish(int level, String message) throws IOException {
// ignore FORCE messages if we have explicitly been asked to ignore them
if (level == Logger.FORCE && !isAllowForceMessage()) {
return;
}
if (os != null) {
os.write(message.getBytes());
}
}
/**
* Open handler. This is a no-op. It is assumed the stream is already
* opened.
*/
public void open() throws IOException {
return;
}
/**
* Close handler. This just flushes the output stream.
*/
public void close() {
if (os != null) {
try {
os.flush();
} catch (IOException e) {
}
}
}
/**
* This just flushes the output stream.
*/
public void flush() {
if (os != null) {
try {
os.flush();
} catch (IOException e) {
}
}
}
/**
* Return a string description of this FileHandler. The descirption
* is the class name followed by the path of the file we are logging to.
*/
public String toString() {
return this.getClass().getName() + ":" + os.toString();
}
}