com.univocity.parsers.common.processor

Class ConcurrentRowProcessor

java.lang.Object

com.univocity.parsers.common.processor.core.AbstractConcurrentProcessor<ParsingContext>

com.univocity.parsers.common.processor.ConcurrentRowProcessor

All Implemented Interfaces:

Processor<ParsingContext>, RowProcessor

public class ConcurrentRowProcessor
extends AbstractConcurrentProcessor<ParsingContext>
implements RowProcessor

A RowProcessor implementation to perform row processing tasks in parallel. The ConcurrentRowProcessor wraps another RowProcessor, and collects rows read from the input. The actual row processing is performed in by wrapped RowProcessor in a separate thread.

Author:

Univocity Software Pty Ltd - parsers@univocity.com

See Also:

AbstractParser, RowProcessor

Constructor Summary

Constructors

Constructor and Description
ConcurrentRowProcessor(RowProcessor rowProcessor) Creates a non-blocking ConcurrentRowProcessor, to perform processing of rows parsed from the input in a separate thread.
ConcurrentRowProcessor(RowProcessor rowProcessor, int limit) Creates a blocking ConcurrentRowProcessor, to perform processing of rows parsed from the input in a separate thread.

Method Summary

Modifier and Type	Method and Description
protected ParsingContext	copyContext(ParsingContext context)
protected ParsingContext	wrapContext(ParsingContext context)

Methods inherited from class com.univocity.parsers.common.processor.core.AbstractConcurrentProcessor

getRowCount, isContextCopyingEnabled, processEnded, processStarted, rowProcessed, setContextCopyingEnabled

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.univocity.parsers.common.processor.RowProcessor

processEnded, processStarted, rowProcessed

Constructor Detail

ConcurrentRowProcessor

public ConcurrentRowProcessor(RowProcessor rowProcessor)

Creates a non-blocking ConcurrentRowProcessor, to perform processing of rows parsed from the input in a separate thread.

Parameters:

rowProcessor - a regular RowProcessor implementation which will be executed in a separate thread.

ConcurrentRowProcessor

public ConcurrentRowProcessor(RowProcessor rowProcessor,
                              int limit)

Creates a blocking ConcurrentRowProcessor, to perform processing of rows parsed from the input in a separate thread.

Parameters:

rowProcessor - a regular RowProcessor implementation which will be executed in a separate thread.

limit - the limit of rows to be kept in memory before the input parsing process is blocked.

Method Detail

copyContext

protected ParsingContext copyContext(ParsingContext context)

Specified by:

copyContext in class AbstractConcurrentProcessor<ParsingContext>

wrapContext

protected ParsingContext wrapContext(ParsingContext context)

Specified by:

wrapContext in class AbstractConcurrentProcessor<ParsingContext>