private void RunChangeTrackerTransientError(
ChangeTrackerMode mode,
Int32 errorCode,
string statusMessage,
Int32 numExpectedChangeCallbacks)
{
var changeTrackerFinishedSignal = new CountdownEvent(1);
var changeReceivedSignal = new CountdownEvent(numExpectedChangeCallbacks);
var client = new ChangeTrackerTestClient(changeTrackerFinishedSignal, changeReceivedSignal);
MockHttpRequestHandler.HttpResponseDelegate sentinal = RunChangeTrackerTransientErrorDefaultResponder();
var responders = new List <MockHttpRequestHandler.HttpResponseDelegate>();
responders.Add(RunChangeTrackerTransientErrorDefaultResponder());
responders.Add(MockHttpRequestHandler.TransientErrorResponder(errorCode, statusMessage));
MockHttpRequestHandler.HttpResponseDelegate chainResponder = (request) =>
{
if (responders.Count > 0)
{
var responder = responders[0];
responders.RemoveAt(0);
return(responder(request));
}
return(sentinal(request));
};
var handler = client.HttpRequestHandler;
handler.SetResponder("_changes", chainResponder);
var testUrl = GetReplicationURL();
var scheduler = new SingleTaskThreadpoolScheduler();
var changeTracker = ChangeTrackerFactory.Create(new ChangeTrackerOptions {
DatabaseUri = testUrl,
Mode = mode,
IncludeConflicts = false,
Client = client,
RetryStrategy = new ExponentialBackoffStrategy(2),
WorkExecutor = new TaskFactory(scheduler)
});
changeTracker.Start();
var success = changeReceivedSignal.Wait(TimeSpan.FromSeconds(30));
Assert.IsTrue(success);
changeTracker.Stop();
success = changeTrackerFinishedSignal.Wait(TimeSpan.FromSeconds(30));
Assert.IsTrue(success);
}
private MockHttpRequestHandler.HttpResponseDelegate RunChangeTrackerTransientErrorDefaultResponder()
{
MockHttpRequestHandler.HttpResponseDelegate responder = (request) =>
{
var json = "{\"results\":[\n" +
"{\"seq\":\"1\",\"id\":\"doc1-138\",\"changes\":[{\"rev\":\"1-82d\"}]}],\n" +
"\"last_seq\":\"*:50\"}";
return(MockHttpRequestHandler.GenerateHttpResponseMessage(System.Net.HttpStatusCode.OK, null, json));
};
return(responder);
}
private void RunChangeTrackerTransientError(
ChangeTrackerMode mode,
Int32 errorCode,
string statusMessage,
Int32 numExpectedChangeCallbacks)
{
var changeTrackerFinishedSignal = new CountDownLatch(1);
var changeReceivedSignal = new CountDownLatch(numExpectedChangeCallbacks);
var client = new ChangeTrackerTestClient(changeTrackerFinishedSignal, changeReceivedSignal);
MockHttpRequestHandler.HttpResponseDelegate sentinal = RunChangeTrackerTransientErrorDefaultResponder();
var responders = new List <MockHttpRequestHandler.HttpResponseDelegate>();
responders.Add(RunChangeTrackerTransientErrorDefaultResponder());
responders.Add(MockHttpRequestHandler.TransientErrorResponder(errorCode, statusMessage));
MockHttpRequestHandler.HttpResponseDelegate chainResponder = (request) =>
{
if (responders.Count > 0)
{
var responder = responders[0];
responders.RemoveAt(0);
return(responder(request));
}
return(sentinal(request));
};
var handler = client.HttpRequestHandler;
handler.SetResponder("_changes", chainResponder);
var testUrl = GetReplicationURL();
var scheduler = new SingleTaskThreadpoolScheduler();
var changeTracker = new ChangeTracker(testUrl, mode, 0, false, client, new TaskFactory(scheduler));
changeTracker.UsePost = IsSyncGateway(testUrl);
changeTracker.Start();
var success = changeReceivedSignal.Await(TimeSpan.FromSeconds(30));
Assert.IsTrue(success);
changeTracker.Stop();
success = changeTrackerFinishedSignal.Await(TimeSpan.FromSeconds(30));
Assert.IsTrue(success);
}
public void TestPushReplicationCanMissDocs()
{
Assert.AreEqual(0, database.LastSequenceNumber);
var properties1 = new Dictionary <string, object>();
properties1["doc1"] = "testPushReplicationCanMissDocs";
var doc1 = CreateDocumentWithProperties(database, properties1);
var properties2 = new Dictionary <string, object>();
properties2["doc2"] = "testPushReplicationCanMissDocs";
var doc2 = CreateDocumentWithProperties(database, properties2);
var doc2UnsavedRev = doc2.CreateRevision();
var attachmentStream = GetAsset("attachment.png");
doc2UnsavedRev.SetAttachment("attachment.png", "image/png", attachmentStream);
var doc2Rev = doc2UnsavedRev.Save();
Assert.IsNotNull(doc2Rev);
var httpClientFactory = new MockHttpClientFactory();
manager.DefaultHttpClientFactory = httpClientFactory;
var httpHandler = httpClientFactory.HttpHandler;
httpHandler.AddResponderFakeLocalDocumentUpdate404();
var json = "{\"error\":\"not_found\",\"reason\":\"missing\"}";
MockHttpRequestHandler.HttpResponseDelegate bulkDocsResponder = (request) =>
{
return(MockHttpRequestHandler.GenerateHttpResponseMessage(HttpStatusCode.NotFound, null, json));
};
httpHandler.SetResponder("_bulk_docs", bulkDocsResponder);
MockHttpRequestHandler.HttpResponseDelegate doc2Responder = (request) =>
{
var responseObject = new Dictionary <string, object>();
responseObject["id"] = doc2.Id;
responseObject["ok"] = true;
responseObject["rev"] = doc2.CurrentRevisionId;
return(MockHttpRequestHandler.GenerateHttpResponseMessage(responseObject));
};
httpHandler.SetResponder(doc2.Id, bulkDocsResponder);
var replicationDoneSignal = new CountDownLatch(1);
var observer = new ReplicationObserver(replicationDoneSignal);
var pusher = database.CreatePushReplication(GetReplicationURL());
pusher.Changed += observer.Changed;
pusher.Start();
var success = replicationDoneSignal.Await(TimeSpan.FromSeconds(5));
Assert.IsTrue(success);
Assert.IsNotNull(pusher.LastError);
System.Threading.Thread.Sleep(TimeSpan.FromMilliseconds(500));
var localLastSequence = database.LastSequenceWithCheckpointId(pusher.RemoteCheckpointDocID());
Log.D(Tag, "dtabase.lastSequenceWithCheckpointId(): " + localLastSequence);
Log.D(Tag, "doc2.getCUrrentRevision().getSequence(): " + doc2.CurrentRevision.Sequence);
// Since doc1 failed, the database should _not_ have had its lastSequence bumped to doc2's sequence number.
// If it did, it's bug: github.com/couchbase/couchbase-lite-java-core/issues/95
Assert.IsFalse(doc2.CurrentRevision.Sequence.ToString().Equals(localLastSequence));
Assert.IsNull(localLastSequence);
Assert.IsTrue(doc2.CurrentRevision.Sequence > 0);
}