/** Handle service periodic maintenance calls. */
@Override
public void handleMaintenance(Operation post) {
post.complete();
Operation.CompletionHandler handler =
(Operation op, Throwable failure) -> {
if (null != failure) {
// query failed so abort and retry next time
logFailure(failure);
return;
}
NodeSelectorService.SelectOwnerResponse rsp =
op.getBody(NodeSelectorService.SelectOwnerResponse.class);
if (!getHost().getId().equals(rsp.ownerNodeId)) {
ServiceUtils.logInfo(
TaskTriggerService.this,
"Host[%s]: Not owner of scheduler [%s] (Owner Info [%s])",
getHost().getId(),
getSelfLink(),
Utils.toJson(rsp));
return;
}
State state = new State();
sendSelfPatch(state);
};
Operation selectOwnerOp =
Operation.createPost(null)
.setExpiration(ServiceUtils.computeExpirationTime(OWNER_SELECTION_TIMEOUT_MILLIS))
.setCompletion(handler);
getHost().selectOwner(null, getSelfLink(), selectOwnerOp);
}
private void createTenantEntity(final String tenantId) {
final Service service = this;
Operation.CompletionHandler completionHandler =
new Operation.CompletionHandler() {
@Override
public void handle(Operation operation, Throwable throwable) {
if (null != throwable) {
failTask(throwable);
}
try {
State patchState = buildPatch(TaskState.TaskStage.FINISHED, null);
patchState.tenantServiceLink =
operation.getBody(TenantService.State.class).documentSelfLink;
TaskUtils.sendSelfPatch(service, patchState);
} catch (Throwable t) {
failTask(t);
}
}
};
Operation op =
Operation.createPost(UriUtils.buildUri(getHost(), TenantFactoryService.SELF_LINK))
.setBody(createTenantServiceState(tenantId))
.setCompletion(completionHandler);
sendRequest(op);
}
/**
* Does any additional processing after the patch operation has been completed.
*
* @param current
*/
private void processPatch(final State current) {
try {
Type stateType = Class.forName(current.triggerStateClassName);
ServiceDocument postState = Utils.fromJson(current.serializedTriggerState, stateType);
postState.documentExpirationTimeMicros =
ServiceUtils.computeExpirationTime(current.taskExpirationAgeMillis);
Operation post =
Operation.createPost(UriUtils.buildUri(getHost(), current.factoryServiceLink))
.setBody(postState);
this.sendRequest(post);
} catch (ClassNotFoundException ex) {
logFailure(ex);
}
}
/**
* Trigger image replication.
*
* @param request
* @return
* @throws Throwable
*/
private String triggerReplication(ReplicateImageRequest request) throws Throwable {
// Prepare replication service call.
ImageReplicatorService.State postReq = new ImageReplicatorService.State();
postReq.image = request.getImage();
postReq.datastore = request.getDatastore();
// Create the operation and call for replication.
Operation postOperation =
Operation.createPost(UriUtils.buildUri(dcpHost, ImageReplicatorServiceFactory.class))
.setBody(postReq)
.setReferer(UriUtils.buildUri(dcpHost, REFERRER_PATH))
.setExpiration(Utils.getNowMicrosUtc() + dcpOperationTimeoutMicros)
.setContextId(LoggingUtils.getRequestId());
OperationLatch opLatch = new OperationLatch(postOperation);
dcpHost.sendRequest(postOperation);
Operation op = opLatch.await();
// Return operation id.
return op.getBody(ImageReplicatorService.State.class).documentSelfLink;
}