fix: Add the ability to set UUID in AssignerSettings (#1296)

* fix: Add the ability to set UUID in AssignerSettings

* 🦉 Updates from OwlBot post-processor

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README.md

@@ -32,13 +32,13 @@ If you are using Maven, add this to your pom.xml file:
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-pubsublite:1.9.1'
+implementation 'com.google.cloud:google-cloud-pubsublite:1.9.2'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-pubsublite" % "1.9.1"
+libraryDependencies += "com.google.cloud" % "google-cloud-pubsublite" % "1.9.2"
 ```
 
 ## Authentication

google-cloud-pubsublite/src/main/java/com/google/cloud/pubsublite/internal/wire/AssignerSettings.java

@@ -35,8 +35,11 @@ public abstract class AssignerSettings {
 
  abstract PartitionAssignmentServiceClient serviceClient();
 
+ // Optional parameters.
+ abstract UUID uuid();
+
  public static Builder newBuilder() {
- return new AutoValue_AssignerSettings.Builder();
+ return new AutoValue_AssignerSettings.Builder().setUuid(UUID.randomUUID());
  }
 
  @AutoValue.Builder
@@ -48,15 +51,18 @@ public abstract static class Builder {
 
  public abstract Builder setServiceClient(PartitionAssignmentServiceClient serviceClient);
 
+ // Optional parameters.
+ public abstract Builder setUuid(UUID uuid);
+
  public abstract AssignerSettings build();
  }
 
  public Assigner instantiate() {
- UUID uuid = UUID.randomUUID();
  ByteBuffer uuidBuffer = ByteBuffer.allocate(16);
- uuidBuffer.putLong(uuid.getMostSignificantBits());
- uuidBuffer.putLong(uuid.getLeastSignificantBits());
- logger.atInfo().log("Subscription %s using UUID %s for assignment.", subscriptionPath(), uuid);
+ uuidBuffer.putLong(uuid().getMostSignificantBits());
+ uuidBuffer.putLong(uuid().getLeastSignificantBits());
+ logger.atInfo().log(
+ "Subscription %s using UUID %s for assignment.", subscriptionPath(), uuid());
 
  InitialPartitionAssignmentRequest initial =
  InitialPartitionAssignmentRequest.newBuilder()