com.yahoo.bard.webservice.table.availability

Class MetricUnionAvailability

java.lang.Object

com.yahoo.bard.webservice.table.availability.BaseCompositeAvailability

com.yahoo.bard.webservice.table.availability.MetricUnionAvailability

All Implemented Interfaces:

Availability

public class MetricUnionAvailability
extends BaseCompositeAvailability
implements Availability

An implementation of Availability which describes a union of source availabilities, filtered by required metrics and then intersected on time available for required columns.

For example, with three source availabilities with the following metric availability:

 
 Source Availability 1:
 +---------------+
 |  metric1      |
 +---------------+
 |  [2017/2018]  |
 +---------------+

 Source Availability 2:
 +------------------+
 |  metric2         |
 +------------------+
 |  [2016/2017-03]  |
 +------------------+

 Source Availability 3:
 +-----------+
 |  metric3  |
 +-----------+
 |  None     |
 +-----------+
 
 

Then the available intervals for the following sets of metrics required by a constraint are:

 +----------------------+------------------+
 |  Requested metrics   |  Available       |
 +----------------------+------------------+
 |  [metric1]           |  [2017/2018]     |
 +----------------------+------------------+
 |  [metric2]           |  [2016/2017-03]  |
 +----------------------+------------------+
 |  [metric1, metric2]  | [2017/2018]      |
 +----------------------+------------------+
 |  [metric1, metric3]  |  []              |
 +-------------------+---------------------+
 

Constructor Summary

Constructors

Constructor and Description
MetricUnionAvailability(Set<Availability> availabilities, Map<Availability,Set<String>> availabilitiesToMetricNames) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
SimplifiedIntervalList	getAvailableIntervals(PhysicalDataSourceConstraint constraint) Fetch a SimplifiedIntervalList representing the coalesced available intervals on this availability as filtered by the PhysicalDataSourceConstraint.
int	hashCode()
String	toString()

Methods inherited from class com.yahoo.bard.webservice.table.availability.BaseCompositeAvailability

getAllAvailableIntervals, getAllSourceAvailabilities, getDataSourceNames

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.yahoo.bard.webservice.table.availability.Availability

getAllAvailableIntervals, getAvailableIntervals, getAvailableIntervals, getDataSourceNames, getDataSourceNames, getDataSourceNames

Constructor Detail

MetricUnionAvailability

public MetricUnionAvailability(@NotNull
                               Set<Availability> availabilities,
                               @NotNull
                               Map<Availability,Set<String>> availabilitiesToMetricNames)

Constructor.

Parameters:

availabilities - A set of Availabilities whose Dimension schemas are (typically) the same and the Metric columns are unique(i.e. no overlap) on every availability

availabilitiesToMetricNames - A map of all availabilities to set of metric names will respond with

Method Detail

getAvailableIntervals

public SimplifiedIntervalList getAvailableIntervals(PhysicalDataSourceConstraint constraint)

Description copied from interface: Availability

Fetch a SimplifiedIntervalList representing the coalesced available intervals on this availability as filtered by the PhysicalDataSourceConstraint.

Specified by:

getAvailableIntervals in interface Availability

Parameters:

constraint - PhysicalDataSourceConstraint containing Schema and ApiFilters

Returns:

A SimplifiedIntervalList of intervals available

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object