com.google.cloud.pubsublite
com.google.cloud.pubsublite.cloudpubsub
com.google.cloud.pubsublite.cloudpubsub.internal
com.google.cloud.pubsublite.internal
com.google.cloud.pubsublite.internal.testing
com.google.cloud.pubsublite.internal.wire
com.google.cloud.pubsublite.proto
com.google.cloud.pubsublite.v1
The interfaces provided are listed below, along with usage samples.
AdminServiceClient
Service Description: The service that a client application uses to manage topics and subscriptions, such creating, listing, and deleting topics and subscriptions.
Sample for AdminServiceClient:
try
(
AdminServiceClient
adminServiceClient
=
AdminServiceClient
.
create
())
{
LocationName
parent
=
LocationName
.
of
(
"[PROJECT]"
,
"[LOCATION]"
);
Topic
topic
=
Topic
.
newBuilder
().
build
();
String
topicId
=
"topicId-1139259734"
;
Topic
response
=
adminServiceClient
.
createTopic
(
parent
,
topic
,
topicId
);
}
CursorServiceClient
Service Description: The service that a subscriber client application uses to manage committed cursors while receiving messsages. A cursor represents a subscriber's progress within a topic partition for a given subscription.
Sample for CursorServiceClient:
try
(
CursorServiceClient
cursorServiceClient
=
CursorServiceClient
.
create
())
{
CommitCursorRequest
request
=
CommitCursorRequest
.
newBuilder
()
.
setSubscription
(
"subscription341203229"
)
.
setPartition
(
-
1799810326
)
.
setCursor
(
Cursor
.
newBuilder
().
build
())
.
build
();
CommitCursorResponse
response
=
cursorServiceClient
.
commitCursor
(
request
);
}
PublisherServiceClient
Service Description: The service that a publisher client application uses to publish messages
to topics. Published messages are retained by the service for the duration of the retention
period configured for the respective topic, and are delivered to subscriber clients upon request
(via the SubscriberService
).
Sample for PublisherServiceClient:
try
(
PublisherServiceClient
publisherServiceClient
=
PublisherServiceClient
.
create
())
{
BidiStream
SubscriberServiceClient
Service Description: The service that a subscriber client application uses to receive messages from subscriptions.
Sample for SubscriberServiceClient:
try
(
SubscriberServiceClient
subscriberServiceClient
=
SubscriberServiceClient
.
create
())
{
BidiStream
PartitionAssignmentServiceClient
Service Description: The service that a subscriber client application uses to determine which partitions it should connect to.
Sample for PartitionAssignmentServiceClient:
try
(
PartitionAssignmentServiceClient
partitionAssignmentServiceClient
=
PartitionAssignmentServiceClient
.
create
())
{
BidiStream
TopicStatsServiceClient
Service Description: This service allows users to get stats about messages in their topic.
Sample for TopicStatsServiceClient:
try
(
TopicStatsServiceClient
topicStatsServiceClient
=
TopicStatsServiceClient
.
create
())
{
ComputeMessageStatsRequest
request
=
ComputeMessageStatsRequest
.
newBuilder
()
.
setTopic
(
TopicName
.
of
(
"[PROJECT]"
,
"[LOCATION]"
,
"[TOPIC]"
).
toString
())
.
setPartition
(
-
1799810326
)
.
setStartCursor
(
Cursor
.
newBuilder
().
build
())
.
setEndCursor
(
Cursor
.
newBuilder
().
build
())
.
build
();
ComputeMessageStatsResponse
response
=
topicStatsServiceClient
.
computeMessageStats
(
request
);
}
