org.apache.storm.hdfs.bolt

Class SequenceFileBolt

java.lang.Object

org.apache.storm.topology.base.BaseComponent

org.apache.storm.topology.base.BaseRichBolt

org.apache.storm.hdfs.bolt.AbstractHdfsBolt

org.apache.storm.hdfs.bolt.SequenceFileBolt

All Implemented Interfaces:

Serializable, IBolt, IComponent, IRichBolt

public class SequenceFileBolt
extends AbstractHdfsBolt

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.storm.hdfs.bolt.AbstractHdfsBolt

collector, configKey, fileNameFormat, fileRetryCount, fs, fsUrl, hdfsConfig, offset, rotation, rotationActions, rotationPolicy, rotationTimer, syncPolicy, tickTupleInterval, writeLock

Constructor Summary

Constructors

Constructor and Description
SequenceFileBolt()

Method Summary

Modifier and Type	Method and Description
SequenceFileBolt	addRotationAction(RotationAction action)
protected void	closeOutputFile()
protected org.apache.hadoop.fs.Path	createOutputFile()
void	doPrepare(Map conf, TopologyContext topologyContext, OutputCollector collector)
protected void	syncTuples() Make the best effort to sync written data to the underlying file system.
SequenceFileBolt	withCompressionCodec(String codec)
SequenceFileBolt	withCompressionType(org.apache.hadoop.io.SequenceFile.CompressionType compressionType)
SequenceFileBolt	withConfigKey(String configKey)
SequenceFileBolt	withFileNameFormat(FileNameFormat fileNameFormat)
SequenceFileBolt	withFsUrl(String fsUrl)
SequenceFileBolt	withRetryCount(int fileRetryCount)
SequenceFileBolt	withRotationPolicy(FileRotationPolicy rotationPolicy)
SequenceFileBolt	withSequenceFormat(SequenceFormat format)
SequenceFileBolt	withSyncPolicy(SyncPolicy syncPolicy)
SequenceFileBolt	withTickTupleIntervalSeconds(int interval)
protected void	writeTuple(Tuple tuple) writes a tuple to the underlying filesystem but makes no guarantees about syncing data.

Methods inherited from class org.apache.storm.hdfs.bolt.AbstractHdfsBolt

cleanup, declareOutputFields, execute, getComponentConfiguration, prepare, rotateOutputFile

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceFileBolt

public SequenceFileBolt()

Method Detail

withCompressionCodec

public SequenceFileBolt withCompressionCodec(String codec)

withFsUrl

public SequenceFileBolt withFsUrl(String fsUrl)

withConfigKey

public SequenceFileBolt withConfigKey(String configKey)

withFileNameFormat

public SequenceFileBolt withFileNameFormat(FileNameFormat fileNameFormat)

withSequenceFormat

public SequenceFileBolt withSequenceFormat(SequenceFormat format)

withSyncPolicy

public SequenceFileBolt withSyncPolicy(SyncPolicy syncPolicy)

withRotationPolicy

public SequenceFileBolt withRotationPolicy(FileRotationPolicy rotationPolicy)

withCompressionType

public SequenceFileBolt withCompressionType(org.apache.hadoop.io.SequenceFile.CompressionType compressionType)

withTickTupleIntervalSeconds

public SequenceFileBolt withTickTupleIntervalSeconds(int interval)

addRotationAction

public SequenceFileBolt addRotationAction(RotationAction action)

withRetryCount

public SequenceFileBolt withRetryCount(int fileRetryCount)

doPrepare

public void doPrepare(Map conf,
                      TopologyContext topologyContext,
                      OutputCollector collector)
               throws IOException

Specified by:

doPrepare in class AbstractHdfsBolt

Throws:

IOException

syncTuples

protected void syncTuples()
                   throws IOException

Description copied from class: AbstractHdfsBolt

Make the best effort to sync written data to the underlying file system. Concrete classes should very clearly state the file state that sync guarantees. For example, HdfsBolt can make a much stronger guarantee than SequenceFileBolt.

Specified by:

syncTuples in class AbstractHdfsBolt

Throws:

IOException

writeTuple

protected void writeTuple(Tuple tuple)
                   throws IOException

Description copied from class: AbstractHdfsBolt

writes a tuple to the underlying filesystem but makes no guarantees about syncing data.

this.offset is also updated to reflect additional data written

Specified by:

writeTuple in class AbstractHdfsBolt

Throws:

IOException

createOutputFile

protected org.apache.hadoop.fs.Path createOutputFile()
                                              throws IOException

Specified by:

createOutputFile in class AbstractHdfsBolt

Throws:

IOException

closeOutputFile

protected void closeOutputFile()
                        throws IOException

Specified by:

closeOutputFile in class AbstractHdfsBolt

Throws:

IOException