io.axual.common.resolver

Class TopicPatternResolver

java.lang.Object

io.axual.common.resolver.TopicPatternResolver

All Implemented Interfaces:

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

public class TopicPatternResolver
extends java.lang.Object
implements TopicResolver

This class is able to resolve and unresolve Kafka topic names. 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 TopicResolver interface.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	TOPIC_PATTERN_CONFIG The name of the property used to pass in the topic name pattern.

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

DEFAULT_PREFIX

Constructor Summary

Constructors

Constructor and Description
TopicPatternResolver()

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 topic) Translates the internal representation of name to the external one.
java.lang.String	resolveTopic(java.lang.String topic) Translates the internal representation of topic name to the external one.
org.apache.kafka.common.TopicPartition	resolveTopic(org.apache.kafka.common.TopicPartition topicPartition) Translates the internal representation of topic name to the external one.
java.util.Set<org.apache.kafka.common.TopicPartition>	resolveTopicPartitions(java.util.Collection<org.apache.kafka.common.TopicPartition> topicPartitions) Translates the internal representation of topic partitions to the external ones.
java.util.regex.Pattern	resolveTopicPattern(java.util.regex.Pattern pattern) Translates the internal representation of topic pattern to the external one.
java.util.Set<java.lang.String>	resolveTopics(java.util.Collection<java.lang.String> topics) Translates the internal representation of topic names to the external ones.
<V> java.util.Map<org.apache.kafka.common.TopicPartition,V>	resolveTopics(java.util.Map<org.apache.kafka.common.TopicPartition,V> topicPartitionMap) Translates the internal representation of a topic partition map to the external one.
java.lang.String	unresolve(java.lang.String topic) Translates the external representation of name to the internal one.
java.util.Map<java.lang.String,java.lang.String>	unresolveContext(java.lang.String topicName) Translates the external representation of a name to the internal one, returning a map of all parsed fields.
java.lang.String	unresolveTopic(java.lang.String topic) Translates the external representation of topic name to the internal one.
org.apache.kafka.common.TopicPartition	unresolveTopic(org.apache.kafka.common.TopicPartition topicPartition) Translates the external representation of topic partition to the internal one.
java.util.Set<org.apache.kafka.common.TopicPartition>	unresolveTopicPartitions(java.util.Collection<org.apache.kafka.common.TopicPartition> topicPartitions) Translates the external representation of topic partitions to the internal ones.
java.util.Set<java.lang.String>	unresolveTopics(java.util.Collection<java.lang.String> topics) Translates the external representation of topic names to the internal ones.
<V> java.util.Map<org.apache.kafka.common.TopicPartition,V>	unresolveTopics(java.util.Map<org.apache.kafka.common.TopicPartition,V> topicPartitionMap) Translates the external representation of topic partition to the internal one.

Methods inherited from class java.lang.Object

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

Field Detail

TOPIC_PATTERN_CONFIG

public static final java.lang.String TOPIC_PATTERN_CONFIG

The name of the property used to pass in the topic name pattern.

See Also:

Constant Field Values

Constructor Detail

TopicPatternResolver

public TopicPatternResolver()

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 topic)

Description copied from interface: Resolver

Translates the internal representation of name to the external one.

Specified by:

resolve in interface Resolver

Parameters:

topic - the internal name

Returns:

the external name

unresolve

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

Description copied from interface: Resolver

Translates the external representation of name to the internal one.

Specified by:

unresolve in interface Resolver

Parameters:

topic - the external name

Returns:

the internal name

unresolveContext

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

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:

topicName - 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

resolveTopic

public java.lang.String resolveTopic(java.lang.String topic)

Description copied from interface: TopicResolver

Translates the internal representation of topic name to the external one.

Specified by:

resolveTopic in interface TopicResolver

Parameters:

topic - the application's internal topic name

Returns:

the external representation of the topic

resolveTopic

public org.apache.kafka.common.TopicPartition resolveTopic(org.apache.kafka.common.TopicPartition topicPartition)

Description copied from interface: TopicResolver

Translates the internal representation of topic name to the external one.

Specified by:

resolveTopic in interface TopicResolver

Parameters:

topicPartition - the application's internal topic partition

Returns:

the external representation of the topic partition

resolveTopicPattern

public java.util.regex.Pattern resolveTopicPattern(java.util.regex.Pattern pattern)

Description copied from interface: TopicResolver

Translates the internal representation of topic pattern to the external one.

Specified by:

resolveTopicPattern in interface TopicResolver

Parameters:

pattern - the application's internal topic pattern

Returns:

the external representation of the topic pattern

resolveTopics

public java.util.Set<java.lang.String> resolveTopics(java.util.Collection<java.lang.String> topics)

Description copied from interface: TopicResolver

Translates the internal representation of topic names to the external ones.

Specified by:

resolveTopics in interface TopicResolver

Parameters:

topics - the application's internal topic names

Returns:

the external representation of the topics

resolveTopicPartitions

public java.util.Set<org.apache.kafka.common.TopicPartition> resolveTopicPartitions(java.util.Collection<org.apache.kafka.common.TopicPartition> topicPartitions)

Description copied from interface: TopicResolver

Translates the internal representation of topic partitions to the external ones.

Specified by:

resolveTopicPartitions in interface TopicResolver

Parameters:

topicPartitions - the application's internal topic partitions

Returns:

the external representation of the topic partitions

resolveTopics

public <V> java.util.Map<org.apache.kafka.common.TopicPartition,V> resolveTopics(java.util.Map<org.apache.kafka.common.TopicPartition,V> topicPartitionMap)

Description copied from interface: TopicResolver

Translates the internal representation of a topic partition map to the external one.

Specified by:

resolveTopics in interface TopicResolver

Type Parameters:

V - any type used as Value in the Map

Parameters:

topicPartitionMap - the map containing the application's internal topic partitions as Keys

Returns:

the map containing the external representation of the topic partitions as Keys

unresolveTopic

public java.lang.String unresolveTopic(java.lang.String topic)

Description copied from interface: TopicResolver

Translates the external representation of topic name to the internal one.

Specified by:

unresolveTopic in interface TopicResolver

Parameters:

topic - the external topic name

Returns:

the internal consumer topic name

unresolveTopic

public org.apache.kafka.common.TopicPartition unresolveTopic(org.apache.kafka.common.TopicPartition topicPartition)

Description copied from interface: TopicResolver

Translates the external representation of topic partition to the internal one.

Specified by:

unresolveTopic in interface TopicResolver

Parameters:

topicPartition - the external topic partition

Returns:

the internal consumer topic partition

unresolveTopics

public java.util.Set<java.lang.String> unresolveTopics(java.util.Collection<java.lang.String> topics)

Description copied from interface: TopicResolver

Translates the external representation of topic names to the internal ones.

Specified by:

unresolveTopics in interface TopicResolver

Parameters:

topics - the external topic names

Returns:

the internal consumer topic names

unresolveTopicPartitions

public java.util.Set<org.apache.kafka.common.TopicPartition> unresolveTopicPartitions(java.util.Collection<org.apache.kafka.common.TopicPartition> topicPartitions)

Description copied from interface: TopicResolver

Translates the external representation of topic partitions to the internal ones.

Specified by:

unresolveTopicPartitions in interface TopicResolver

Parameters:

topicPartitions - the external topic partitions

Returns:

the internal consumer topic partitions

unresolveTopics

public <V> java.util.Map<org.apache.kafka.common.TopicPartition,V> unresolveTopics(java.util.Map<org.apache.kafka.common.TopicPartition,V> topicPartitionMap)

Description copied from interface: TopicResolver

Translates the external representation of topic partition to the internal one.

Specified by:

unresolveTopics in interface TopicResolver

Type Parameters:

V - any type used as Value in the Map

Parameters:

topicPartitionMap - the map containing the application's external topic partitions as keys

Returns:

the map containing the internal representation of the topic partitions as keys