private static void testSendGetSGRequests(ScatterGatherBuilder<Greeting> sg, Long[] requestIds)
throws ServiceUnavailableException, InterruptedException {
Collection<ScatterGatherBuilder.RequestInfo<Greeting>> scatterGatherRequests =
buildScatterGatherGetRequests(sg, requestIds);
final Map<String, Greeting> results = new ConcurrentHashMap<String, Greeting>();
final CountDownLatch latch = new CountDownLatch(scatterGatherRequests.size());
final List<Throwable> errors = new ArrayList<Throwable>();
final List<BatchResponse<Greeting>> responses = new ArrayList<BatchResponse<Greeting>>();
for (ScatterGatherBuilder.RequestInfo<Greeting> requestInfo : scatterGatherRequests) {
Callback<Response<BatchResponse<Greeting>>> cb =
new Callback<Response<BatchResponse<Greeting>>>() {
@Override
public void onSuccess(Response<BatchResponse<Greeting>> response) {
results.putAll(response.getEntity().getResults());
synchronized (responses) {
responses.add(response.getEntity());
}
latch.countDown();
}
@Override
public void onError(Throwable e) {
synchronized (errors) {
errors.add(e);
}
latch.countDown();
}
};
REST_CLIENT.sendRequest(requestInfo.getRequest(), requestInfo.getRequestContext(), cb);
}
latch.await();
if (!errors.isEmpty()) {
Assert.fail("Errors in scatter/gather: " + errors.toString());
}
Assert.assertEquals(results.values().size(), requestIds.length);
Set<Set<String>> responseIdSets = new HashSet<Set<String>>();
Set<Long> responseIds = new HashSet<Long>();
for (BatchResponse<Greeting> response : responses) {
Set<String> theseIds = response.getResults().keySet();
Assert.assertFalse(responseIdSets.contains(theseIds)); // no duplicate requests
for (String id : theseIds) {
Assert.assertFalse(responseIds.contains(Long.parseLong(id))); // no duplicate ids
responseIds.add(Long.parseLong(id));
}
responseIdSets.add(theseIds);
}
Assert.assertTrue(responseIds.containsAll(Arrays.asList(requestIds)));
Assert.assertEquals(responseIds.size(), requestIds.length);
}
private static void testBuildSGGetRequests(
int numEndpoints, ScatterGatherBuilder<Greeting> sg, Long[] ids)
throws ServiceUnavailableException {
Collection<ScatterGatherBuilder.RequestInfo<Greeting>> requests =
buildScatterGatherGetRequests(sg, ids);
Assert.assertEquals(requests.size(), numEndpoints);
Set<Set<String>> requestIdSets = new HashSet<Set<String>>();
Set<Long> requestIds = new HashSet<Long>();
for (ScatterGatherBuilder.RequestInfo<Greeting> requestInfo : requests) {
// URI will be something like
// "greetings/?ids=21&ids=4&ids=53&ids=60&ids=66&ids=88&ids=93&foo=bar"
BatchRequest<BatchResponse<Greeting>> request = requestInfo.getBatchRequest();
Set<String> expectedParams = new HashSet<String>();
expectedParams.add(RestConstants.QUERY_BATCH_IDS_PARAM);
expectedParams.add("foo");
expectedParams.add(RestConstants.FIELDS_PARAM);
Set<String> expectedFields = Collections.singleton("message");
testRequest(request, expectedParams, expectedFields, null, requestIdSets, requestIds);
}
Assert.assertTrue(requestIds.containsAll(Arrays.asList(ids)));
Assert.assertEquals(requestIds.size(), ids.length);
}
