-
Notifications
You must be signed in to change notification settings - Fork 33
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
STITCH-1986 - Add watch to remote mongo collection (#98)
- Loading branch information
Showing
48 changed files
with
1,885 additions
and
850 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
80 changes: 80 additions & 0 deletions
80
...e/src/main/java/com/mongodb/stitch/android/services/mongodb/remote/AsyncChangeStream.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * Copyright 2018-present MongoDB, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.mongodb.stitch.android.services.mongodb.remote; | ||
|
|
||
| import com.google.android.gms.tasks.Task; | ||
|
|
||
| import com.mongodb.stitch.android.core.internal.common.TaskDispatcher; | ||
| import com.mongodb.stitch.core.internal.net.StitchEvent; | ||
| import com.mongodb.stitch.core.internal.net.Stream; | ||
| import com.mongodb.stitch.core.services.mongodb.remote.ChangeEvent; | ||
| import com.mongodb.stitch.core.services.mongodb.remote.ChangeStream; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.concurrent.Callable; | ||
|
|
||
| /** | ||
| * An implementation of {@link com.mongodb.stitch.core.services.mongodb.remote.ChangeStream} that | ||
| * returns each event as a {@link Task}. | ||
| * | ||
| * @param <DocumentT> The type of the full document on the underlying change event to be returned | ||
| * asynchronously. | ||
| */ | ||
| public class AsyncChangeStream<DocumentT> extends | ||
| ChangeStream<Task<ChangeEvent<DocumentT>>, DocumentT> { | ||
| private final TaskDispatcher dispatcher; | ||
|
|
||
| /** | ||
| * Initializes a passthrough change stream with the provided underlying event stream. | ||
| * | ||
| * @param stream The event stream. | ||
| * @param dispatcher The event dispatcher. | ||
| */ | ||
| public AsyncChangeStream(final Stream<ChangeEvent<DocumentT>> stream, | ||
| final TaskDispatcher dispatcher) { | ||
| super(stream); | ||
| this.dispatcher = dispatcher; | ||
| } | ||
|
|
||
| /** | ||
| * Returns a {@link Task} whose resolution gives the next event from the underlying stream. | ||
| * @return task providing the next event | ||
| * @throws IOException if the underlying stream throws an {@link IOException} | ||
| */ | ||
| @Override | ||
| public Task<ChangeEvent<DocumentT>> nextEvent() throws IOException { | ||
| return dispatcher.dispatchTask(new Callable<ChangeEvent<DocumentT>>() { | ||
| @Override | ||
| public ChangeEvent<DocumentT> call() throws Exception { | ||
| final StitchEvent<ChangeEvent<DocumentT>> nextEvent = getStream().nextEvent(); | ||
|
|
||
| if (nextEvent == null) { | ||
| return null; | ||
| } | ||
| if (nextEvent.getError() != null) { | ||
| dispatchError(nextEvent); | ||
| return null; | ||
| } | ||
| if (nextEvent.getData() == null) { | ||
| return null; | ||
| } | ||
|
|
||
| return nextEvent.getData(); | ||
| } | ||
| }); | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.