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public
class
SocketHandler
extends StreamHandler
java.lang.Object | |||
↳ | java.util.logging.Handler | ||
↳ | java.util.logging.StreamHandler | ||
↳ | java.util.logging.SocketHandler |
Simple network logging Handler.
LogRecords are published to a network stream connection. By default the XMLFormatter class is used for formatting.
Configuration: By default each SocketHandler is initialized using the following LogManager configuration properties where <handler-name> refers to the fully-qualified class name of the handler. If properties are not defined (or have invalid values) then the specified default values are used.
For example, the properties for SocketHandler
would be:
For a custom handler, e.g. com.foo.MyHandler, the properties would be:
The output IO stream is buffered, but is flushed after each LogRecord is written.
Public constructors | |
---|---|
SocketHandler()
Create a SocketHandler, using only LogManager properties (or their defaults). |
|
SocketHandler(String host, int port)
Construct a SocketHandler using a specified host and port. |
Public methods | |
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void
|
close()
Close this output stream. |
void
|
publish(LogRecord record)
Format and publish a LogRecord. |
Inherited methods | |
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public SocketHandler ()
Create a SocketHandler, using only LogManager properties (or their defaults).
Throws | |
---|---|
IllegalArgumentException |
if the host or port are invalid or are not specified as LogManager properties. |
IOException |
if we are unable to connect to the target host and port. |
public SocketHandler (String host, int port)
Construct a SocketHandler using a specified host and port. The SocketHandler is configured based on LogManager properties (or their default values) except that the given target host and port arguments are used. If the host argument is empty, but not null String then the localhost is used.
Parameters | |
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host |
String : target host. |
port |
int : target port. |
Throws | |
---|---|
IllegalArgumentException |
if the host or port are invalid. |
IOException |
if we are unable to connect to the target host and port. |
public void close ()
Close this output stream.
Throws | |
---|---|
SecurityException |
if a security manager exists and if the caller does not have LoggingPermission("control"). |
public void publish (LogRecord record)
Format and publish a LogRecord.
Parameters | |
---|---|
record |
LogRecord : description of the log event. A null record is
silently ignored and is not published |