JMSLogWriter (CSS Core API)

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org.csstudio.logging
Class JMSLogWriter

java.lang.Object
  org.csstudio.logging.JMSLogWriter

public class JMSLogWriter
extends java.lang.Object
extends java.lang.Object

Thread that reads log messages from queue and writes them to JMS.

Uses a Formatter, but only invokes Formatter.formatMessage() to expand parameters in the message text. If the log record contains exception info, that is added to the message text.

The remaining LogRecord elements are directly placed in the JMS log message and not formatted into (possibly) one long string via a call to Formatter.format().

Author:: Kay Kasemir

Constructor Summary
`JMSLogWriter(java.lang.String application_id, java.lang.String jms_url, java.lang.String topic, java.util.concurrent.BlockingQueue<java.util.logging.LogRecord> records, java.util.logging.Formatter formatter)` Initialize

Method Summary
`void`	`onException(JMSException exception)` JMS Exception handler
`void`	`start()` Start the writer's background thread
`void`	`stop()` Stop the writer's background thread

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

JMSLogWriter

public JMSLogWriter(java.lang.String application_id,
                    java.lang.String jms_url,
                    java.lang.String topic,
                    java.util.concurrent.BlockingQueue<java.util.logging.LogRecord> records,
                    java.util.logging.Formatter formatter)

Initialize

Parameters:: application_id - Application ID to include in JMS messages; jms_url - JMS server URL; topic - JMS topic; records - BlockingQueue from which log messages are read; formatter - Formatter that's partially used to format the message text

Method Detail

start

public void start()

Start the writer's background thread

stop

public void stop()

Stop the writer's background thread

onException

public void onException(JMSException exception)

JMS Exception handler