org.apache.ignite.internal.processors.bulkload

Class BulkLoadParser

java.lang.Object

org.apache.ignite.internal.processors.bulkload.BulkLoadParser

Direct Known Subclasses:

BulkLoadCsvParser

public abstract class BulkLoadParser
extends Object

Bulk load file format parser superclass + factory of known formats.

The parser processes a batch of input data and return a list of records.

The parser uses corresponding options from BulkLoadFormat subclass.

Constructor Summary

Constructors

Constructor and Description
BulkLoadParser()

Method Summary

Modifier and Type	Method and Description
static BulkLoadParser	createParser(BulkLoadFormat format) Creates a parser for a given format options.
protected abstract Iterable<List<Object>>	parseBatch(byte[] batchData, boolean isLastBatch) Parses a batch of input data and returns a list of records parsed (in most cases this is a list of strings).

Methods inherited from class java.lang.Object

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

Constructor Detail

BulkLoadParser

public BulkLoadParser()

Method Detail

parseBatch

protected abstract Iterable<List<Object>> parseBatch(byte[] batchData,
                                                     boolean isLastBatch)
                                              throws IgniteCheckedException

Parses a batch of input data and returns a list of records parsed (in most cases this is a list of strings).

Note that conversion between parsed and database table type is done by the other object (see BulkLoadProcessor.dataConverter) by the request processing code. This method is not obliged to do this conversion.

Parameters:

batchData - Data from the current batch.

isLastBatch - true if this is the last batch.

Returns:

The list of records.

Throws:

IgniteCheckedException - If any processing error occurs.

createParser

public static BulkLoadParser createParser(BulkLoadFormat format)

Creates a parser for a given format options.

Parameters:

format - The input format object.

Returns:

The parser.

Throws:

IllegalArgumentException - if the format is not known to the factory.