Examples with StreamsList io.pravega.controller.server.rest.generated.model.StreamsList used on opensource projects

Example 6 with StreamsList

use of io.pravega.controller.server.rest.generated.model.StreamsList in project pravega by pravega.

the class StreamMetadataResourceImpl method listReaderGroups.

@Override
public void listReaderGroups(final String scopeName, final SecurityContext securityContext, final AsyncResponse asyncResponse) {
    long traceId = LoggerHelpers.traceEnter(log, "listReaderGroups");
    long requestId = requestIdGenerator.nextLong();
    try {
        restAuthHelper.authenticateAuthorize(getAuthorizationHeader(), authorizationResource.ofReaderGroupsInScope(scopeName), READ);
    } catch (AuthException e) {
        log.warn(requestId, "Get reader groups for {} failed due to authentication failure.", scopeName);
        asyncResponse.resume(Response.status(Status.fromStatusCode(e.getResponseCode())).build());
        LoggerHelpers.traceLeave(log, "listReaderGroups", traceId);
        return;
    }
    // Each reader group is represented by a stream within the mentioned scope.
    controllerService.listStreamsInScope(scopeName, requestId).thenApply(streamsList -> {
        ReaderGroupsList readerGroups = new ReaderGroupsList();
        streamsList.forEach((stream, config) -> {
            if (stream.startsWith(READER_GROUP_STREAM_PREFIX)) {
                ReaderGroupsListReaderGroups readerGroup = new ReaderGroupsListReaderGroups();
                readerGroup.setReaderGroupName(stream.substring(READER_GROUP_STREAM_PREFIX.length()));
                readerGroups.addReaderGroupsItem(readerGroup);
            }
        });
        log.info(requestId, "Successfully fetched readerGroups for scope: {}", scopeName);
        return Response.status(Status.OK).entity(readerGroups).build();
    }).exceptionally(exception -> {
        if (exception.getCause() instanceof StoreException.DataNotFoundException || exception instanceof StoreException.DataNotFoundException) {
            log.warn(requestId, "Scope name: {} not found", scopeName);
            return Response.status(Status.NOT_FOUND).build();
        } else {
            log.warn(requestId, "listReaderGroups for {} failed with exception: ", scopeName, exception);
            return Response.status(Status.INTERNAL_SERVER_ERROR).build();
        }
    }).thenApply(asyncResponse::resume).thenAccept(x -> LoggerHelpers.traceLeave(log, "listReaderGroups", traceId));
}