Class MessageTransforms (1.12.22)

public class MessageTransforms

MessageTransforms details how to transform message representations from Cloud Pub/Sub to Pub/Sub Lite.

Transformers are made public to allow user code that currently uses PubsubMessages to use interfaces interacting with Pub/Sub Lite.

Inheritance

java.lang.Object > MessageTransforms

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Fields

PUBSUB_LITE_EVENT_TIME_TIMESTAMP_PROTO

public static final String PUBSUB_LITE_EVENT_TIME_TIMESTAMP_PROTO

Field Value
Type	Description
`String`

Static Methods

decodeAttributeEventTime(String encoded)

public static Timestamp decodeAttributeEventTime(String encoded)

Decode a timestamp encoded with encodeAttributeEventTime.

Parameter
Name	Description
`encoded`	`String`

Returns
Type	Description
`Timestamp`

Exceptions
Type	Description
`ApiException`

encodeAttributeEventTime(Timestamp timestamp)

public static String encodeAttributeEventTime(Timestamp timestamp)

Encode a timestamp in a way that it will be interpreted as an event time if published on a message with an attribute named PUBSUB_LITE_EVENT_TIME_TIMESTAMP_PROTO.

Parameter
Name	Description
`timestamp`	`Timestamp`

Returns
Type	Description
`String`

fromCpsPublishTransformer(KeyExtractor keyExtractor)

public static MessageTransformer<PubsubMessage,Message> fromCpsPublishTransformer(KeyExtractor keyExtractor)

Parameter
Name	Description
`keyExtractor`	`KeyExtractor`

Returns
Type	Description
`MessageTransformer<com.google.pubsub.v1.PubsubMessage,Message>`

toCpsPublishTransformer()

public static MessageTransformer<Message,PubsubMessage> toCpsPublishTransformer()

Returns
Type	Description
`MessageTransformer<Message,com.google.pubsub.v1.PubsubMessage>`

toCpsSubscribeTransformer()

public static MessageTransformer<SequencedMessage,PubsubMessage> toCpsSubscribeTransformer()

Returns
Type	Description
`MessageTransformer<SequencedMessage,com.google.pubsub.v1.PubsubMessage>`