/**
* Gets the system diagnostics for this NiFi instance.
*
* @return A systemDiagnosticsEntity.
* @throws InterruptedException if interrupted
*/
@GET
@Consumes(MediaType.WILDCARD)
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(
value = "Gets the diagnostics for the system NiFi is running on",
response = SystemDiagnosticsEntity.class,
authorizations = {@Authorization(value = "Read - /system", type = "")})
@ApiResponses(
value = {
@ApiResponse(code = 401, message = "Client could not be authenticated."),
@ApiResponse(code = 403, message = "Client is not authorized to make this request."),
})
public Response getSystemDiagnostics(
@ApiParam(
value =
"Whether or not to include the breakdown per node. Optional, defaults to false",
required = false)
@QueryParam("nodewise")
@DefaultValue(NODEWISE)
final Boolean nodewise,
@ApiParam(value = "The id of the node where to get the status.", required = false)
@QueryParam("clusterNodeId")
final String clusterNodeId)
throws InterruptedException {
authorizeSystem();
// ensure a valid request
if (Boolean.TRUE.equals(nodewise) && clusterNodeId != null) {
throw new IllegalArgumentException(
"Nodewise requests cannot be directed at a specific node.");
}
if (isReplicateRequest()) {
// determine where this request should be sent
if (clusterNodeId == null) {
final NodeResponse nodeResponse;
// Determine whether we should replicate only to the cluster coordinator, or if we should
// replicate directly
// to the cluster nodes themselves.
if (getReplicationTarget() == ReplicationTarget.CLUSTER_NODES) {
nodeResponse =
getRequestReplicator()
.replicate(
HttpMethod.GET, getAbsolutePath(), getRequestParameters(), getHeaders())
.awaitMergedResponse();
} else {
nodeResponse =
getRequestReplicator()
.forwardToCoordinator(
getClusterCoordinatorNode(),
HttpMethod.GET,
getAbsolutePath(),
getRequestParameters(),
getHeaders())
.awaitMergedResponse();
}
final SystemDiagnosticsEntity entity =
(SystemDiagnosticsEntity) nodeResponse.getUpdatedEntity();
// ensure there is an updated entity (result of merging) and prune the response as necessary
if (entity != null && !nodewise) {
entity.getSystemDiagnostics().setNodeSnapshots(null);
}
return nodeResponse.getResponse();
} else {
return replicate(HttpMethod.GET);
}
}
final SystemDiagnosticsDTO systemDiagnosticsDto = serviceFacade.getSystemDiagnostics();
// create the response
final SystemDiagnosticsEntity entity = new SystemDiagnosticsEntity();
entity.setSystemDiagnostics(systemDiagnosticsDto);
// generate the response
return clusterContext(generateOkResponse(entity)).build();
}
