io.axual.common.resolver

Class GroupPatternResolver

java.lang.Object

io.axual.common.resolver.GroupPatternResolver

All Implemented Interfaces:

GroupResolver, Resolver, org.apache.kafka.common.Configurable

Direct Known Subclasses:

LegacyGroupResolver

public class GroupPatternResolver
extends java.lang.Object
implements GroupResolver

This class is able to resolve and unresolve patterns for Kafka consumer group ids. It is implemented in much the same way as Kafka (de)serializers, by using a default constructor first and calling configure(Map) later. The parameters passed in during configure() determine the behaviour of the resolver. The class implements the GroupResolver interface.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DEFAULT_PLACEHOLDER_VALUE
static java.lang.String	GROUP_ID_PATTERN_CONFIG The name of the property used to pass in the group id pattern.

Fields inherited from interface io.axual.common.resolver.Resolver

DEFAULT_PREFIX

Constructor Summary

Constructors

Constructor and Description
GroupPatternResolver()

Method Summary

Modifier and Type	Method and Description
void	configure(java.util.Map<java.lang.String,?> configs)
java.lang.String	getNameFromContext(java.util.Map<java.lang.String,java.lang.String> context) Fetches the unresolved name from a context that was parsed earlier.
java.lang.String	resolve(java.lang.String group) Translates the internal representation of name to the external one.
java.lang.String	resolveGroup(java.lang.String group) Translates the internal representation of consumer group id to the external one.
java.lang.String	unresolve(java.lang.String group) Translates the external representation of name to the internal one.
java.util.Map<java.lang.String,java.lang.String>	unresolveContext(java.lang.String group) Translates the external representation of a name to the internal one, returning a map of all parsed fields.
java.lang.String	unresolveGroup(java.lang.String group) Translates the external representation of consumer group id to the internal one.

Methods inherited from class java.lang.Object

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

Field Detail

GROUP_ID_PATTERN_CONFIG

public static final java.lang.String GROUP_ID_PATTERN_CONFIG

The name of the property used to pass in the group id pattern.

See Also:

Constant Field Values

DEFAULT_PLACEHOLDER_VALUE

public static final java.lang.String DEFAULT_PLACEHOLDER_VALUE

See Also:

Constant Field Values

Constructor Detail

GroupPatternResolver

public GroupPatternResolver()

Method Detail

configure

public void configure(java.util.Map<java.lang.String,?> configs)

Specified by:

configure in interface Resolver

Specified by:

configure in interface org.apache.kafka.common.Configurable

resolve

public java.lang.String resolve(java.lang.String group)

Description copied from interface: Resolver

Translates the internal representation of name to the external one.

Specified by:

resolve in interface Resolver

Parameters:

group - the internal name

Returns:

the external name

unresolve

public java.lang.String unresolve(java.lang.String group)

Description copied from interface: Resolver

Translates the external representation of name to the internal one.

Specified by:

unresolve in interface Resolver

Parameters:

group - the external name

Returns:

the internal name

unresolveContext

public java.util.Map<java.lang.String,java.lang.String> unresolveContext(java.lang.String group)

Description copied from interface: Resolver

Translates the external representation of a name to the internal one, returning a map of all parsed fields.

Specified by:

unresolveContext in interface Resolver

Parameters:

group - the external name

Returns:

a map with all parsed fields from the external name

getNameFromContext

public java.lang.String getNameFromContext(java.util.Map<java.lang.String,java.lang.String> context)

Description copied from interface: Resolver

Fetches the unresolved name from a context that was parsed earlier.

Specified by:

getNameFromContext in interface Resolver

Parameters:

context - the unresolved context

Returns:

the unresolved name

resolveGroup

public java.lang.String resolveGroup(java.lang.String group)

Description copied from interface: GroupResolver

Translates the internal representation of consumer group id to the external one.

Specified by:

resolveGroup in interface GroupResolver

Parameters:

group - the internal consumer group id

Returns:

the external consumer group id

unresolveGroup

public java.lang.String unresolveGroup(java.lang.String group)

Description copied from interface: GroupResolver

Translates the external representation of consumer group id to the internal one.

Specified by:

unresolveGroup in interface GroupResolver

Parameters:

group - the external consumer group id

Returns:

the internal consumer group id