org.apache.nifi.couchbase

Class CouchbaseClusterService

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.couchbase.CouchbaseClusterService

All Implemented Interfaces:

ConfigurableComponent, ControllerService, CouchbaseClusterControllerService

@CapabilityDescription(value="Provides a centralized Couchbase connection and bucket passwords management. Bucket passwords can be specified via dynamic properties.")
 @Tags(value={"nosql","couchbase","database","connection"})
 @DynamicProperty(name="Bucket Password for BUCKET_NAME",
                 value="bucket password",
                 description="Specify bucket password if neseccery.")
public class CouchbaseClusterService
extends AbstractControllerService
implements CouchbaseClusterControllerService

Provides a centralized Couchbase connection and bucket passwords management.

Field Summary

Fields

Modifier and Type	Field and Description
private static Map<String,String>	bucketPasswords
private com.couchbase.client.java.CouchbaseCluster	cluster
static PropertyDescriptor	CONNECTION_STRING
private static String	DYNAMIC_PROP_BUCKET_PASSWORD
private static List<PropertyDescriptor>	properties

Constructor Summary

Constructors

Constructor and Description
CouchbaseClusterService()

Method Summary

Modifier and Type	Method and Description
protected PropertyDescriptor	getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
void	onConfigured(ConfigurationContext context) Establish a connection to a Couchbase cluster.
com.couchbase.client.java.Bucket	openBucket(String bucketName) Open a bucket connection.
void	shutdown() Disconnect from the Couchbase cluster.

Methods inherited from class org.apache.nifi.controller.AbstractControllerService

getControllerServiceLookup, getIdentifier, getLogger, getProperties, getProperty, getStateManager, init, initialize, onConfigurationChange

Methods inherited from class org.apache.nifi.components.AbstractConfigurableComponent

customValidate, equals, getPropertyDescriptor, getPropertyDescriptors, hashCode, onPropertyModified, toString, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.nifi.controller.ControllerService

initialize

Methods inherited from interface org.apache.nifi.components.ConfigurableComponent

getIdentifier, getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

CONNECTION_STRING

public static final PropertyDescriptor CONNECTION_STRING

properties

private static final List<PropertyDescriptor> properties

DYNAMIC_PROP_BUCKET_PASSWORD

private static final String DYNAMIC_PROP_BUCKET_PASSWORD

See Also:

Constant Field Values

bucketPasswords

private static final Map<String,String> bucketPasswords

cluster

private volatile com.couchbase.client.java.CouchbaseCluster cluster

Constructor Detail

CouchbaseClusterService

public CouchbaseClusterService()

Method Detail

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

getSupportedDynamicPropertyDescriptor

protected PropertyDescriptor getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)

Overrides:

getSupportedDynamicPropertyDescriptor in class AbstractConfigurableComponent

onConfigured

@OnEnabled
public void onConfigured(ConfigurationContext context)
                             throws InitializationException

Establish a connection to a Couchbase cluster.

Parameters:

context - the configuration context

Throws:

InitializationException - if unable to connect a Couchbase cluster

openBucket

public com.couchbase.client.java.Bucket openBucket(String bucketName)

Description copied from interface: CouchbaseClusterControllerService

Open a bucket connection.

Specified by:

openBucket in interface CouchbaseClusterControllerService

Parameters:

bucketName - the bucket name to access

Returns:

a connected bucket instance

shutdown

@OnDisabled
public void shutdown()

Disconnect from the Couchbase cluster.