org.dashbuilder.dataprovider.backend.elasticsearch.rest.util

Class ElasticSearchUtils

java.lang.Object

org.dashbuilder.dataprovider.backend.elasticsearch.rest.util.ElasticSearchUtils

public class ElasticSearchUtils
extends Object

Since:

0.3.0

Field Summary

Fields

Modifier and Type	Field and Description
protected ElasticSearchValueTypeMapper	valueTypeMapper

Constructor Summary

Constructors

Constructor and Description
ElasticSearchUtils(ElasticSearchValueTypeMapper valueTypeMapper)

Method Summary

Modifier and Type	Method and Description
Date[]	calculateDateLimits(ElasticSearchClient client, DataSetMetadata metadata, String dateColumnId, Query query) Obtain the minimum date and maximum date values for the given column with identifier dateColumnId.
String	transformPattern(String pattern) ELS wildcard query characters replacement for Dashbuilder the LIKE core function ones: ------------------------------------------------------- | ELS | Dashbuilder | Description | | ?

Methods inherited from class java.lang.Object

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

Field Detail

valueTypeMapper

protected ElasticSearchValueTypeMapper valueTypeMapper

Constructor Detail

ElasticSearchUtils

public ElasticSearchUtils(ElasticSearchValueTypeMapper valueTypeMapper)

Method Detail

calculateDateLimits

public Date[] calculateDateLimits(ElasticSearchClient client,
                                  DataSetMetadata metadata,
                                  String dateColumnId,
                                  Query query)
                           throws ElasticSearchClientGenericException

Obtain the minimum date and maximum date values for the given column with identifier dateColumnId.

Parameters:

client - The client for performing the query to ELS

metadata - The data set metadata

dateColumnId - The column identifier for the date type column

query - The query model, if any, for filtering the results

Returns:

The minimum and maximum dates.

Throws:

ElasticSearchClientGenericException

transformPattern

public String transformPattern(String pattern)

ELS wildcard query characters replacement for Dashbuilder the LIKE core function ones: ------------------------------------------------------- | ELS | Dashbuilder | Description | | ? | _ | Matches any character | | * | % | Matches zero or more characters | -------------------------------------------------------