Package com.yahoo.log

Class LogMessage

java.lang.Object

com.yahoo.log.LogMessage

public class LogMessage
extends Object

This class implements the common ground log message used by the logserver. A LogMessage is immutable. Note that we have chosen the name LogMessage to avoid confusion with LogRecord which is used in java.util.logging.

Author:

Bjorn Borud, bjorncs

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
String	getComponent()
Event	getEvent()	If the LogMessage was an EVENT then this method can be used to get the Event instance representing the event.
String	getHost()
Level	getLevel()
String	getPayload()
long	getProcessId()
String	getService()
OptionalLong	getThreadId()
Instant	getTimestamp()
int	hashCode()
static LogMessage	of(Instant time, String host, long processId, long threadId, String service, String component, Level level, String payload)
static LogMessage	parseNativeFormat(String msg)	Make a log message from the native format of the logging package.
String	toString()	Return valid representation of log message.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

of

public static LogMessage of(Instant time,
 String host,
 long processId,
 long threadId,
 String service,
 String component,
 Level level,
 String payload)

getTimestamp

public Instant getTimestamp()

getHost

public String getHost()

getProcessId

public long getProcessId()

getThreadId

public OptionalLong getThreadId()

getService

public String getService()

getComponent

public String getComponent()

getLevel

public Level getLevel()

getPayload

public String getPayload()

parseNativeFormat

public static LogMessage parseNativeFormat(String msg)
                                    throws InvalidLogFormatException

Make a log message from the native format of the logging package.

Parameters:

msg - The log message

Returns:

Returns a LogMessage instance

Throws:

InvalidLogFormatException - if the log message can not be parsed, ie. is invalid, we throw this exception.

getEvent

public Event getEvent()
               throws MalformedEventException

If the LogMessage was an EVENT then this method can be used to get the Event instance representing the event. The event instance created the first time this method is called and then cached. TODO: make sure this throws exception!

Returns:

Returns Event instance if this is an event message and the payload is correctly formatted. Otherwise it will return null.

Throws:

MalformedEventException

toString

public String toString()

Return valid representation of log message.

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object