de.phleisch.app.itsucks.processing.impl
Class DataProcessorChainImpl

java.lang.Object
  de.phleisch.app.itsucks.processing.impl.DataProcessorChainImpl

All Implemented Interfaces:

DataProcessorChain

public class DataProcessorChainImpl
extends java.lang.Object
implements DataProcessorChain

This is an implementation of an processor chain.

Author:

olli

Nested Class Summary

protected class	DataProcessorChainImpl.ContainerRuntimeException
protected class	DataProcessorChainImpl.DataConsumerImpl

Field Summary

protected java.util.List<DataProcessor>	mDataProcessors
protected DataRetriever	mDataRetriever
protected boolean	mInitialized
protected Job	mJob
protected JobManager	mJobManager

Constructor Summary

DataProcessorChainImpl()

DataProcessorChainImpl(java.util.List<DataProcessor> pProcessorsForJob)

Method Summary

protected void	abort()
void	addDataProcessor(DataProcessor pDataProcessor) Adds an data processor at the end of the chain.
void	addDataProcessor(java.util.List<DataProcessor> pProcessorsForJob) Adds an list of data processors at the end of the chain.
boolean	canResume() Checks if all processors in the chain are supporting resuming.
boolean	containsConsumer() Returns if the chain contains at least one consumer.
protected void	dispatchChunk(DataChunk pDataChunk)
void	finish() Finalizes the chain and all processors in it.
java.util.List<DataProcessor>	getDataProcessors() Returns a list with all data processors in the chain.
DataRetriever	getDataRetriever() Gets the data retriever.
Job	getJob() Gets the job which the chain is assigned to.
JobManager	getJobManager() Gets the job manager.
long	getProcessedBytes() Gets the already processed bytes in the chain.
void	init() Initializes all the chain and all processors in it.
protected void	internalRun()
void	replaceDataProcessor(DataProcessor pOldDataProcessor, DataProcessor pNewDataProcessor) Replaces an data processor in the chain.
void	resumeAt(long pResumeOffset) Advises all processors to resume at the given position.
protected void	rollback()
void	run() Starts the data retriever and processes the data in the processor chain.
void	setDataRetriever(DataRetriever pDataRetriever) Sets the data retriever.
void	setJob(Job pJob) Sets the job which the chain is assigned to.
void	setJobManager(JobManager pJobManager) Sets the job manager.
int	size() Returns the count of registerd processors.

Methods inherited from class java.lang.Object

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

Field Detail

mDataProcessors

protected java.util.List<DataProcessor> mDataProcessors

mDataRetriever

protected DataRetriever mDataRetriever

mJob

protected Job mJob

mJobManager

protected JobManager mJobManager

mInitialized

protected boolean mInitialized

Constructor Detail

DataProcessorChainImpl

public DataProcessorChainImpl()

DataProcessorChainImpl

public DataProcessorChainImpl(java.util.List<DataProcessor> pProcessorsForJob)

Method Detail

addDataProcessor

public void addDataProcessor(java.util.List<DataProcessor> pProcessorsForJob)

Description copied from interface: DataProcessorChain

Adds an list of data processors at the end of the chain.

Specified by:

addDataProcessor in interface DataProcessorChain

addDataProcessor

public void addDataProcessor(DataProcessor pDataProcessor)

Description copied from interface: DataProcessorChain

Adds an data processor at the end of the chain.

Specified by:

addDataProcessor in interface DataProcessorChain

replaceDataProcessor

public void replaceDataProcessor(DataProcessor pOldDataProcessor,
                                 DataProcessor pNewDataProcessor)

Description copied from interface: DataProcessorChain

Replaces an data processor in the chain.

Specified by:

replaceDataProcessor in interface DataProcessorChain

getDataProcessors

public java.util.List<DataProcessor> getDataProcessors()

Description copied from interface: DataProcessorChain

Returns a list with all data processors in the chain.

Specified by:

getDataProcessors in interface DataProcessorChain

Returns:

init

public void init()
          throws ProcessingException,
                 AbortProcessingException

Description copied from interface: DataProcessorChain

Initializes all the chain and all processors in it.

Specified by:

init in interface DataProcessorChain

Throws:

ProcessingException

AbortProcessingException

run

public void run()
         throws java.io.IOException,
                ProcessingException,
                AbortProcessingException

Description copied from interface: DataProcessorChain

Starts the data retriever and processes the data in the processor chain.

Specified by:

run in interface DataProcessorChain

Throws:

java.io.IOException

ProcessingException

AbortProcessingException

internalRun

protected void internalRun()
                    throws java.io.IOException,
                           ProcessingException

Throws:

java.io.IOException

ProcessingException

finish

public void finish()

Description copied from interface: DataProcessorChain

Finalizes the chain and all processors in it.

Specified by:

finish in interface DataProcessorChain

rollback

protected void rollback()

abort

protected void abort()

dispatchChunk

protected void dispatchChunk(DataChunk pDataChunk)
                      throws ProcessingException

Throws:

ProcessingException

canResume

public boolean canResume()

Description copied from interface: DataProcessorChain

Checks if all processors in the chain are supporting resuming.

Specified by:

canResume in interface DataProcessorChain

Returns:

resumeAt

public void resumeAt(long pResumeOffset)

Description copied from interface: DataProcessorChain

Advises all processors to resume at the given position.

Specified by:

resumeAt in interface DataProcessorChain

setDataRetriever

public void setDataRetriever(DataRetriever pDataRetriever)

Description copied from interface: DataProcessorChain

Sets the data retriever.

Specified by:

setDataRetriever in interface DataProcessorChain

getDataRetriever

public DataRetriever getDataRetriever()

Description copied from interface: DataProcessorChain

Gets the data retriever.

Specified by:

getDataRetriever in interface DataProcessorChain

Returns:

setJobManager

public void setJobManager(JobManager pJobManager)

Description copied from interface: DataProcessorChain

Sets the job manager.

Specified by:

setJobManager in interface DataProcessorChain

getJobManager

public JobManager getJobManager()

Description copied from interface: DataProcessorChain

Gets the job manager.

Specified by:

getJobManager in interface DataProcessorChain

Returns:

setJob

public void setJob(Job pJob)

Description copied from interface: DataProcessorChain

Sets the job which the chain is assigned to.

Specified by:

setJob in interface DataProcessorChain

getJob

public Job getJob()

Description copied from interface: DataProcessorChain

Gets the job which the chain is assigned to.

Specified by:

getJob in interface DataProcessorChain

Returns:

size

public int size()

Description copied from interface: DataProcessorChain

Returns the count of registerd processors.

Specified by:

size in interface DataProcessorChain

Returns:

getProcessedBytes

public long getProcessedBytes()

Description copied from interface: DataProcessorChain

Gets the already processed bytes in the chain.

Specified by:

getProcessedBytes in interface DataProcessorChain

Returns:

containsConsumer

public boolean containsConsumer()

Description copied from interface: DataProcessorChain

Returns if the chain contains at least one consumer.

Specified by:

containsConsumer in interface DataProcessorChain

Returns: