Java™ Platform
Standard Ed. 6

java.util.logging
Class SocketHandler

java.lang.Object
  extended by java.util.logging.Handler
      extended by java.util.logging.StreamHandler
          extended by java.util.logging.SocketHandler

public class SocketHandler
extends StreamHandler

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.

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

Since:
1.4

Constructor Summary
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.
 
Method Summary
 void close()
          Close this output stream.
 void publish(LogRecord record)
          Format and publish a LogRecord.
 
Methods inherited from class java.util.logging.StreamHandler
flush, isLoggable, setEncoding, setOutputStream
 
Methods inherited from class java.util.logging.Handler
getEncoding, getErrorManager, getFilter, getFormatter, getLevel, reportError, setErrorManager, setFilter, setFormatter, setLevel
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SocketHandler

public SocketHandler()
              throws IOException
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

public SocketHandler(String host,
                     int port)
              throws IOException
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 - target host.
port - target port.
Throws:
IllegalArgumentException - if the host or port are invalid.
IOException - if we are unable to connect to the target host and port.
Method Detail

close

public void close()
           throws SecurityException
Close this output stream.

Overrides:
close in class StreamHandler
Throws:
SecurityException - if a security manager exists and if the caller does not have LoggingPermission("control").

publish

public void publish(LogRecord record)
Format and publish a LogRecord.

Overrides:
publish in class StreamHandler
Parameters:
record - description of the log event. A null record is silently ignored and is not published

Java™ Platform
Standard Ed. 6

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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