org.thales.punch.libraries.punchlang.resource.builder

Class AbstractCsvResourceBuilder

java.lang.Object

org.thales.punch.libraries.punchlang.resource.builder.AbstractCsvLineResourceBuilder

org.thales.punch.libraries.punchlang.resource.builder.AbstractCsvResourceBuilder

All Implemented Interfaces:

IResourceBuilder

Direct Known Subclasses:

CsvToMapInPlaceResourceBuilder, CsvToMapResourceBuilder

public abstract class AbstractCsvResourceBuilder
extends AbstractCsvLineResourceBuilder

In addition to AbstractCsvLineResourceBuilder, this abstract class addthe processing of extracting one of the column using a provided column name, and ocnstructs a dictionary.

This class passes the processing to an IResourceTuple.addKeyValue(String, Tuple) method for each read value. s * @author dimi

Nested Class Summary

Nested classes/interfaces inherited from interface org.thales.punch.libraries.punchlang.api.IResourceBuilder

IResourceBuilder.CompactionType

Field Summary

Fields inherited from class org.thales.punch.libraries.punchlang.resource.builder.AbstractCsvLineResourceBuilder

columns, csvOperator

Constructor Summary

Constructors

Constructor and Description
AbstractCsvResourceBuilder(List<String> columns, String delimiter, boolean inferTypes, String hashKey, boolean lowerCase, boolean hasHeader) Ctor.

Method Summary

Modifier and Type	Method and Description
Tuple	onEnd() Callback that tells you the scan is done.

Methods inherited from class org.thales.punch.libraries.punchlang.resource.builder.AbstractCsvLineResourceBuilder

onStart, onStream

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.thales.punch.libraries.punchlang.api.IResourceBuilder

prepare

Constructor Detail

AbstractCsvResourceBuilder

public AbstractCsvResourceBuilder(List<String> columns,
                                  String delimiter,
                                  boolean inferTypes,
                                  String hashKey,
                                  boolean lowerCase,
                                  boolean hasHeader)

Ctor.

Parameters:

columns - the expected csv columns

delimiter - the csv delimiter

inferTypes - true to make the inner tuple typed.

hashKey - not null to declare the key to be used to build the hash table

lowerCase - true if keys must be converted to loewr cases

hasHeader - true if the csv file has a header with column declared

compact - true to leverage compact tuples

Method Detail

onEnd

public Tuple onEnd()

Description copied from interface: IResourceBuilder

Callback that tells you the scan is done. You can safely terminate and return the building of your resource.

You should typically free any temporary storage, if any, used to build your resource.

Returns:

the built resource.