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SocketHandler

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. If properties are not defined (or have invalid values) then the specified default values are used.

  • java.util.logging.SocketHandler.level specifies the default level for the Handler (defaults to Level.ALL).
  • java.util.logging.SocketHandler.filter specifies the name of a Filter class to use (defaults to no Filter).
  • java.util.logging.SocketHandler.formatter specifies the name of a Formatter class to use (defaults to java.util.logging.XMLFormatter).
  • java.util.logging.SocketHandler.encoding the name of the character set encoding to use (defaults to the default platform encoding).
  • java.util.logging.SocketHandler.host specifies the target host name to connect to (no default).
  • java.util.logging.SocketHandler.port specifies the target TCP port to use (no default).

The output IO stream is buffered, but is flushed after each LogRecord is written.

Summary

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

void close()

Close this output stream.

void publish(LogRecord record)

Format and publish a LogRecord.

Inherited methods

From class java.util.logging.StreamHandler
From class java.util.logging.Handler
From class java.lang.Object

Public constructors

SocketHandler

Added in API level 1
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.

SocketHandler

Added in API level 1
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
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 methods

close

Added in API level 1
void close ()

Close this output stream.

Throws
SecurityException if a security manager exists and if the caller does not have LoggingPermission("control").

publish

Added in API level 1
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
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