Package org.odpi.openmetadata.repositoryservices.connectors.openmetadatatopic

Class OpenMetadataTopicConsumerBase

java.lang.Object

org.odpi.openmetadata.frameworks.connectors.Connector

org.odpi.openmetadata.frameworks.connectors.ConnectorBase

org.odpi.openmetadata.repositoryservices.connectors.openmetadatatopic.OpenMetadataTopicConsumerBase

All Implemented Interfaces:

AuditLoggingComponent, VirtualConnectorExtension

Direct Known Subclasses:

OpenMetadataTopicListenerConnectorBase, OpenMetadataTopicSenderConnectorBase

public class OpenMetadataTopicConsumerBase
extends ConnectorBase
implements VirtualConnectorExtension, AuditLoggingComponent

OpenMetadataTopicConnectorBase is a base class to topic connectors that only send events on the embedded event bus connector

Nested Class Summary

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

ConnectorBase.ProtectedConnection

Field Summary

Fields

Modifier and Type	Field	Description
protected AuditLog	auditLog
protected String	connectionName
protected List<OpenMetadataTopicConnector>	eventBusConnectors

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

connectedAssetProperties, connectionBean, connectionProperties, connectorInstanceId, securedProperties

Constructor Summary

Constructors

Constructor	Description
OpenMetadataTopicConsumerBase()

Method Summary

Modifier and Type	Method	Description
void	disconnect()	Free up any resources held since the connector is no longer needed.
ComponentDescription	getConnectorComponentDescription()	Return the component description that is used by this connector in the audit log.
void	initializeEmbeddedConnectors(List<Connector> embeddedConnectors)	Set up the list of connectors that this virtual connector will use to support its interface.
void	setAuditLog(AuditLog auditLog)	Receive an audit log object that can be used to record audit log messages.
void	start()	Indicates that the connector is completely configured and can begin processing.
protected void	validateEventBusConnectors(String methodName)	Validates that there is at least one event bus connector receiving events.

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

eventBusConnectors

protected List<OpenMetadataTopicConnector> eventBusConnectors

connectionName

protected String connectionName

auditLog

protected AuditLog auditLog

Constructor Detail

OpenMetadataTopicConsumerBase

public OpenMetadataTopicConsumerBase()

Method Detail

initializeEmbeddedConnectors

public void initializeEmbeddedConnectors(List<Connector> embeddedConnectors)

Set up the list of connectors that this virtual connector will use to support its interface. The connectors are initialized waiting to start. When start() is called on the virtual connector, it needs to pass start() to each of the embedded connectors. Similarly for disconnect().

Specified by:

initializeEmbeddedConnectors in interface VirtualConnectorExtension

Parameters:

embeddedConnectors - list of connectors

setAuditLog

public void setAuditLog(AuditLog auditLog)

Receive an audit log object that can be used to record audit log messages. The caller has initialized it with the correct component description and log destinations.

Specified by:

setAuditLog in interface AuditLoggingComponent

Parameters:

auditLog - audit log object

getConnectorComponentDescription

public ComponentDescription getConnectorComponentDescription()

Return the component description that is used by this connector in the audit log.

Specified by:

getConnectorComponentDescription in interface AuditLoggingComponent

Returns:

id, name, description, wiki page URL.

validateEventBusConnectors

protected void validateEventBusConnectors(String methodName)
                                   throws ConnectorCheckedException

Validates that there is at least one event bus connector receiving events.

Parameters:

methodName - calling method

Throws:

ConnectorCheckedException - no event bus connectors available.

start

public void start()
           throws ConnectorCheckedException

Indicates that the connector is completely configured and can begin processing. OMRSTopicConnector needs to pass on the start() to its embedded connectors.

Overrides:

start in class ConnectorBase

Throws:

ConnectorCheckedException - there is a problem within the connector.

disconnect

public void disconnect()
                throws ConnectorCheckedException

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

Overrides:

disconnect in class ConnectorBase

Throws:

ConnectorCheckedException - there is a problem within the connector.