at.jku.fim.rubanetra.output.impl

Class JsonOutputWriterStrategy

java.lang.Object

at.jku.fim.rubanetra.output.impl.JsonOutputWriterStrategy

All Implemented Interfaces:

OutputWriterStrategy

public class JsonOutputWriterStrategy
extends Object
implements OutputWriterStrategy

This class implements a Json specific transformation (using the Jackson library) of the derived Event/Fact/Activity-data. By default, it tries to pretty-print the resulting JSON-output, flushes the output stream after each written activity and does not fail on empty activities, nor will it close the used output-stream. Because certain classes do not provide appropriate inclusion or exclusion annotations, certain MixIn classes will be used as substitute.

Additionally the implementation version, vendor and title is provided for external parsers.

See Also:

HttpMixIn, PcapMixIn

Constructor Summary

Constructors

Constructor and Description
JsonOutputWriterStrategy(OutputStream outputStream) Creates a new instance of this strategy, all passed activities will be written to the provided output-stream.

Method Summary

Modifier and Type	Method and Description
void	closeWriter() Closes the writer but does not release or close the underlying output stream.
void	writeActivity(Activity activity) Write an Activity to the provided output-stream using the implementation-specific transformation of the content.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JsonOutputWriterStrategy

public JsonOutputWriterStrategy(OutputStream outputStream)

Creates a new instance of this strategy, all passed activities will be written to the provided output-stream.

Parameters:

outputStream - the output-stream to write the received activity-data in JSON-format to

Method Detail

writeActivity

public void writeActivity(Activity activity)

Description copied from interface: OutputWriterStrategy

Write an Activity to the provided output-stream using the implementation-specific transformation of the content.

Specified by:

writeActivity in interface OutputWriterStrategy

Parameters:

activity - the activity that will be transformed according to the strategy in use and written to the provided output-stream

closeWriter

public void closeWriter()

Description copied from interface: OutputWriterStrategy

Closes the writer but does not release or close the underlying output stream. If the writer is already closed then invoking this method has no effect.

Specified by:

closeWriter in interface OutputWriterStrategy