io.cdap.delta.test.mock

Class MockSource

java.lang.Object

io.cdap.delta.test.mock.MockSource

All Implemented Interfaces:

io.cdap.delta.api.assessment.TableAssessorSupplier<io.cdap.delta.api.assessment.TableDetail>, io.cdap.delta.api.DeltaSource

public class MockSource
extends Object
implements io.cdap.delta.api.DeltaSource

Mock DeltaSource used in unit tests. Emits a pre-configured set of events.

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME
static PluginClass	PLUGIN_CLASS

Fields inherited from interface io.cdap.delta.api.DeltaSource

PLUGIN_TYPE

Constructor Summary

Constructors

Constructor and Description
MockSource(io.cdap.delta.test.mock.MockSource.Conf conf)

Method Summary

Modifier and Type	Method and Description
void	configure(io.cdap.delta.api.Configurer configurer)
io.cdap.delta.api.EventReader	createReader(io.cdap.delta.api.EventReaderDefinition definition, io.cdap.delta.api.DeltaSourceContext context, io.cdap.delta.api.EventEmitter emitter)
io.cdap.delta.api.assessment.TableAssessor<io.cdap.delta.api.assessment.TableDetail>	createTableAssessor(io.cdap.delta.api.Configurer configurer)
io.cdap.delta.api.assessment.TableRegistry	createTableRegistry(io.cdap.delta.api.Configurer configurer)
static io.cdap.delta.proto.Plugin	getPlugin(List<? extends io.cdap.delta.api.ChangeEvent> events) Get the plugin configuration for a mock source that should emit the given events in order.
static io.cdap.delta.proto.Plugin	getPlugin(List<? extends io.cdap.delta.api.ChangeEvent> events, File proceedFile) Get the plugin configuration for a mock source that should throw exceptions until the specified proceed file exists.
static io.cdap.delta.proto.Plugin	getPlugin(List<? extends io.cdap.delta.api.ChangeEvent> events, int maxEvents) Get the plugin configuration for a mock source that should emit the given events in order, up to the maximum number of events given.

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

PLUGIN_CLASS

public static final PluginClass PLUGIN_CLASS

Constructor Detail

MockSource

public MockSource(io.cdap.delta.test.mock.MockSource.Conf conf)

Method Detail

configure

public void configure(io.cdap.delta.api.Configurer configurer)

Specified by:

configure in interface io.cdap.delta.api.DeltaSource

createReader

public io.cdap.delta.api.EventReader createReader(io.cdap.delta.api.EventReaderDefinition definition,
                                                  io.cdap.delta.api.DeltaSourceContext context,
                                                  io.cdap.delta.api.EventEmitter emitter)

Specified by:

createReader in interface io.cdap.delta.api.DeltaSource

createTableRegistry

public io.cdap.delta.api.assessment.TableRegistry createTableRegistry(io.cdap.delta.api.Configurer configurer)

Specified by:

createTableRegistry in interface io.cdap.delta.api.DeltaSource

createTableAssessor

public io.cdap.delta.api.assessment.TableAssessor<io.cdap.delta.api.assessment.TableDetail> createTableAssessor(io.cdap.delta.api.Configurer configurer)

Specified by:

createTableAssessor in interface io.cdap.delta.api.assessment.TableAssessorSupplier<io.cdap.delta.api.assessment.TableDetail>

getPlugin

public static io.cdap.delta.proto.Plugin getPlugin(List<? extends io.cdap.delta.api.ChangeEvent> events)

Get the plugin configuration for a mock source that should emit the given events in order.

Parameters:

events - events to emit in order

Returns:

plugin configuration for the mock source

getPlugin

public static io.cdap.delta.proto.Plugin getPlugin(List<? extends io.cdap.delta.api.ChangeEvent> events,
                                                   int maxEvents)

Get the plugin configuration for a mock source that should emit the given events in order, up to the maximum number of events given. When maxEvents is less than the size of the event list, the pipeline will have to be restarted multiple times in order to emit all the events. This is used to test that the pipeline starts from the correct offset.

Parameters:

events - events to emit in order

maxEvents - maximum number of events to emit for a single run of the pipeline

Returns:

plugin configuration for the mock source

getPlugin

public static io.cdap.delta.proto.Plugin getPlugin(List<? extends io.cdap.delta.api.ChangeEvent> events,
                                                   File proceedFile)

Get the plugin configuration for a mock source that should throw exceptions until the specified proceed file exists. After that point, it should emit the specified events.

Parameters:

events - events to emit in order

proceedFile - file that must exist before events are emitted

Returns:

plugin configuration for the mock source