org.odpi.openmetadata.frameworks.discovery

Class DiscoveryPipeline

java.lang.Object

org.odpi.openmetadata.frameworks.connectors.Connector

org.odpi.openmetadata.frameworks.connectors.ConnectorBase

org.odpi.openmetadata.frameworks.discovery.DiscoveryService

org.odpi.openmetadata.frameworks.discovery.DiscoveryPipeline

All Implemented Interfaces:

VirtualConnectorExtension

public abstract class DiscoveryPipeline
extends DiscoveryService
implements VirtualConnectorExtension

DiscoveryPipeline is a discovery service that is responsible for choreographing the discovery services passed on initializeEmbeddedConnectors.

Nested Class Summary

Nested classes/interfaces inherited from class org.odpi.openmetadata.frameworks.connectors.ConnectorBase

ConnectorBase.ProtectedConnection

Field Summary

Fields

Modifier and Type	Field and Description
protected List<Connector>	embeddedConnectors
protected List<DiscoveryService>	embeddedDiscoveryServices

Fields inherited from class org.odpi.openmetadata.frameworks.discovery.DiscoveryService

discoveryContext, discoveryServiceName

Fields inherited from class org.odpi.openmetadata.frameworks.connectors.ConnectorBase

connectedAssetProperties, connectionBean, connectionProperties, connectorInstanceId, isActive, securedProperties

Constructor Summary

Constructors

Constructor and Description
DiscoveryPipeline()

Method Summary

Modifier and Type	Method and Description
void	disconnect() Free up any resources held since the connector is no longer needed.
void	initializeEmbeddedConnectors(List<Connector> embeddedConnectors) Set up the list of discovery services connectors that will be invoked as part of this discovery pipeline.
protected abstract void	runDiscoveryPipeline() This implementation provides an inline sequential invocation of the supplied discovery services.
void	start() Start the pipeline.

Methods inherited from class org.odpi.openmetadata.frameworks.discovery.DiscoveryService

getDiscoveryContext, getEmbeddedDiscoveryServices, handleUnexpectedException, setDiscoveryContext, setDiscoveryServiceName

Methods inherited from class org.odpi.openmetadata.frameworks.connectors.ConnectorBase

equals, getConnectedAssetProperties, getConnection, getConnectorInstanceId, hashCode, initialize, initializeConnectedAssetProperties, isActive, toString

Methods inherited from class java.lang.Object

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

Field Detail

embeddedConnectors

protected List<Connector> embeddedConnectors

embeddedDiscoveryServices

protected List<DiscoveryService> embeddedDiscoveryServices

Constructor Detail

DiscoveryPipeline

public DiscoveryPipeline()

Method Detail

initializeEmbeddedConnectors

public void initializeEmbeddedConnectors(List<Connector> embeddedConnectors)

Set up the list of discovery services connectors that will be invoked as part of this discovery pipeline. The connectors are initialized waiting to start. After start() is called on the discovery pipeline, it will choreograph the invocation of its embedded discovery services by calling start() to each of them when they are to run. Similarly for disconnect().

Specified by:

initializeEmbeddedConnectors in interface VirtualConnectorExtension

Parameters:

embeddedConnectors - list of embedded connectors that are hopefully discovery services

start

public void start()
           throws ConnectorCheckedException

Start the pipeline.

Overrides:

start in class DiscoveryService

Throws:

ConnectorCheckedException - there is a problem within the discovery service.

runDiscoveryPipeline

protected abstract void runDiscoveryPipeline()
                                      throws ConnectorCheckedException

This implementation provides an inline sequential invocation of the supplied discovery services.

Throws:

ConnectorCheckedException - there is a problem within the discovery service.

disconnect

public void disconnect()
                throws ConnectorCheckedException

Free up any resources held since the connector is no longer needed.

Overrides:

disconnect in class DiscoveryService

Throws:

ConnectorCheckedException - there is a problem within the discovery service.