Package com.illumon.iris.db.tables.dataimport.logtailer

Class DataImportChannelProcessor

java.lang.Object

com.illumon.iris.db.tables.dataimport.logtailer.DataImportProcessorBaseImpl

com.illumon.iris.db.tables.dataimport.logtailer.DataImportStreamProcessor

com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannelProcessor

All Implemented Interfaces:

DataImportChannelProcessorBase, DataImportProcessorBase

public class DataImportChannelProcessor
extends DataImportStreamProcessor
implements DataImportChannelProcessorBase

Process data from at most one concurrent tailer for a given local table location.

Nested Class Summary

Nested classes/interfaces inherited from class com.illumon.iris.db.tables.dataimport.logtailer.DataImportStreamProcessor

DataImportStreamProcessor.Context

Field Summary

Fields inherited from class com.illumon.iris.db.tables.dataimport.logtailer.DataImportProcessorBaseImpl

CHECKPOINT_INTERVAL_MILLIS_SUFFIX, dataStreamProcessorDirectory, DISP_DEFAULT_PREFIX, DISP_PREFIX, FLUSH_INTERVAL_SUFFIX, log, logPrefix, MAX_SHUTDOWN_DELAY_MILLIS_SUFFIX, PROFILING_LEVEL_SUFFIX, schemaService

Fields inherited from interface com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannelProcessorBase

NEW_LINE

Method Summary

Modifier and Type	Method	Description
protected Boolean	checkLiveness()	Test "liveness" for this stream processor.
protected void	close(String reason)
com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannel	getChannel()	Get the DataImportChannel for this channel processor.
protected String	getDescription()
void	handleApplicationMessage(com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannel channel, DataImportChannelItem item)
protected DataImportStreamProcessor.Context	initializeContext(boolean reinitializing)
protected boolean	onInitialization()

Methods inherited from class com.illumon.iris.db.tables.dataimport.logtailer.DataImportStreamProcessor

addPostCommitCallback, addPostPrepareCallback, initialize, shutdown, toString

Methods inherited from class com.illumon.iris.db.tables.dataimport.logtailer.DataImportProcessorBaseImpl

getLog, getLogPrefix

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannelProcessorBase

handleDisconnection, handleProtocolError, handleReadException, handleReject, handleUnexpectedMessage, initializeApplicationHandler, sendReject, sendReject, sendReject

Methods inherited from interface com.illumon.iris.db.tables.dataimport.logtailer.DataImportProcessorBase

getLog, getLogPrefix, shutdown

Method Details

getChannel

@NotNull
public com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannel getChannel()

Description copied from interface: DataImportChannelProcessorBase

Get the DataImportChannel for this channel processor.

Specified by:

getChannel in interface DataImportChannelProcessorBase

Returns:

the DataImportChannel

initializeContext

protected DataImportStreamProcessor.Context initializeContext(boolean reinitializing)

onInitialization

protected boolean onInitialization()

close

protected void close(@NotNull
 String reason)

handleApplicationMessage

public void handleApplicationMessage(@NotNull
 com.illumon.iris.db.tables.dataimport.logtailer.DataImportChannel channel,
 @NotNull
 DataImportChannelItem item)

checkLiveness

protected Boolean checkLiveness()
                         throws InterruptedException,
TimeoutException

Test "liveness" for this stream processor. Not a perfect implementation, correctness-wise, but suitable for our purpose. If the stream processor is not alive, try to wait for it to be done.

Specified by:

checkLiveness in class DataImportStreamProcessor

Returns:

True if alive, false if not, null if uncertain

Throws:

InterruptedException - if the thread is interrupted while waiting

TimeoutException - if the stream processor doesn't go to DONE state within the configured time limit

getDescription

@NotNull
protected String getDescription()