org.apache.flume.serialization

Class HeaderAndBodyTextEventSerializer

java.lang.Object

org.apache.flume.serialization.HeaderAndBodyTextEventSerializer

All Implemented Interfaces:

EventSerializer

public class HeaderAndBodyTextEventSerializer
extends Object
implements EventSerializer

This class simply writes the body of the event to the output stream and appends a newline after each event.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HeaderAndBodyTextEventSerializer.Builder

Field Summary

Fields inherited from interface org.apache.flume.serialization.EventSerializer

CTX_PREFIX

Method Summary

Methods

Modifier and Type	Method and Description
void	afterCreate() Hook to write a header after file is opened for the first time.
void	afterReopen() Hook to handle any framing needed when file is re-opened (for write). Could have been named afterOpenForAppend().
void	beforeClose() Hook to write a trailer before the stream is closed.
void	flush() Hook to flush any internal write buffers to the underlying stream.
boolean	supportsReopen() Specify whether this output format supports reopening files for append.
void	write(Event e) Serialize and write the given event.

Methods inherited from class java.lang.Object

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

Method Detail

supportsReopen

public boolean supportsReopen()

Description copied from interface: EventSerializer

Specify whether this output format supports reopening files for append. For example, this method should return false if EventSerializer.beforeClose() writes a trailer that "finalizes" the file (this type of behavior is file format-specific).
Could have been named supportsAppend().

Specified by:

supportsReopen in interface EventSerializer

afterCreate

public void afterCreate()

Description copied from interface: EventSerializer

Hook to write a header after file is opened for the first time.

Specified by:

afterCreate in interface EventSerializer

afterReopen

public void afterReopen()

Description copied from interface: EventSerializer

Hook to handle any framing needed when file is re-opened (for write).
Could have been named afterOpenForAppend().

Specified by:

afterReopen in interface EventSerializer

beforeClose

public void beforeClose()

Description copied from interface: EventSerializer

Hook to write a trailer before the stream is closed. Implementations must not buffer data in this call since EventSerializer.flush() is not guaranteed to be called after beforeClose().

Specified by:

beforeClose in interface EventSerializer

write

public void write(Event e)
           throws IOException

Description copied from interface: EventSerializer

Serialize and write the given event.

Specified by:

write in interface EventSerializer

Parameters:

e - Event to write to the underlying stream.

Throws:

IOException

flush

public void flush()
           throws IOException

Description copied from interface: EventSerializer

Hook to flush any internal write buffers to the underlying stream. It is NOT necessary for an implementation to then call flush() / sync() on the underlying stream itself, since those semantics would be provided by the driver that calls this API.

Specified by:

flush in interface EventSerializer

Throws:

IOException