org.apache.nifi.atlas.resolver

Class NamespaceResolvers

java.lang.Object

org.apache.nifi.atlas.resolver.NamespaceResolvers

All Implemented Interfaces:

NamespaceResolver

public class NamespaceResolvers
extends Object
implements NamespaceResolver

Field Summary

Fields

Modifier and Type	Field and Description
private String	defaultNamespace
private Set<NamespaceResolver>	resolvers

Constructor Summary

Constructors

Constructor and Description
NamespaceResolvers(Set<NamespaceResolver> resolvers, String defaultNamespace)

Method Summary

Modifier and Type	Method and Description
void	configure(PropertyContext context) Implementation should clear previous configurations when this method is called again.
String	fromHints(Map<String,String> hints) Resolve a namespace from hints, such as Zookeeper Quorum, client port and znode path
String	fromHostNames(String... hostNames) Resolve a namespace from a list of host names or IP addresses.
PropertyDescriptor	getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)
Collection<ValidationResult>	validate(ValidationContext validationContext)

Methods inherited from class java.lang.Object

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

Field Detail

resolvers

private final Set<NamespaceResolver> resolvers

defaultNamespace

private final String defaultNamespace

Constructor Detail

NamespaceResolvers

public NamespaceResolvers(Set<NamespaceResolver> resolvers,
                          String defaultNamespace)

Method Detail

getSupportedDynamicPropertyDescriptor

public PropertyDescriptor getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)

Specified by:

getSupportedDynamicPropertyDescriptor in interface NamespaceResolver

validate

public Collection<ValidationResult> validate(ValidationContext validationContext)

Specified by:

validate in interface NamespaceResolver

configure

public void configure(PropertyContext context)

Description copied from interface: NamespaceResolver

Implementation should clear previous configurations when this method is called again.

Specified by:

configure in interface NamespaceResolver

Parameters:

context - passed from ReportingTask

fromHostNames

public String fromHostNames(String... hostNames)

Description copied from interface: NamespaceResolver

Resolve a namespace from a list of host names or IP addresses.

Specified by:

fromHostNames in interface NamespaceResolver

Parameters:

hostNames - host names or IP addresses

Returns:

resolved namespace or null

fromHints

public String fromHints(Map<String,String> hints)

Description copied from interface: NamespaceResolver

Resolve a namespace from hints, such as Zookeeper Quorum, client port and znode path

Specified by:

fromHints in interface NamespaceResolver

Parameters:

hints - Contains variables to resolve a namespace

Returns:

resolved namespace or null