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Add GuardedResultAsyncTask 

Reviewed By: andreicoman11

Differential Revision: D2679459

fb-gh-sync-id: 8a9ec170ce76bbc3340c9e8872e19b78ae5a5c2d
This commit is contained in:
Alexander Blom 2015-11-23 02:16:27 -08:00 committed by facebook-github-bot-6
parent 54470021ca
commit f57c2a9140
2 changed files with 45 additions and 3 deletions
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5
ReactAndroid/src/main/java/com/facebook/react/bridge/GuardedAsyncTask.java
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@ -16,9 +16,8 @@ import android.os.AsyncTask;
* handled by the {@link com.facebook.react.bridge.NativeModuleCallExceptionHandler} registered if
* the app is in dev mode.
*
* This class doesn't allow doInBackground to return a results. This is mostly because when this
* class was written that functionality wasn't used and it would require some extra code to make
* work correctly with caught exceptions. Don't let that stop you from adding it if you need it :)
* This class doesn't allow doInBackground to return a results. If you need this
* use GuardedResultAsyncTask instead.
*/
public abstract class GuardedAsyncTask<Params, Progress>
extends AsyncTask<Params, Progress, Void> {

43
ReactAndroid/src/main/java/com/facebook/react/bridge/GuardedResultAsyncTask.java Normal file
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@ -0,0 +1,43 @@
// Copyright 2004-present Facebook. All Rights Reserved.
package com.facebook.react.bridge;
import android.os.AsyncTask;
/**
* Abstract base for a AsyncTask with result support that should have any RuntimeExceptions it
* throws handled by the {@link com.facebook.react.bridge.NativeModuleCallExceptionHandler}
* registered if the app is in dev mode.
*/
public abstract class GuardedResultAsyncTask<Result>
extends AsyncTask<Void, Void, Result> {
private final ReactContext mReactContext;
protected GuardedResultAsyncTask(ReactContext reactContext) {
mReactContext = reactContext;
}
@Override
protected final Result doInBackground(Void... params) {
try {
return doInBackgroundGuarded();
} catch (RuntimeException e) {
mReactContext.handleException(e);
throw e;
}
}
@Override
protected final void onPostExecute(Result result) {
try {
onPostExecuteGuarded(result);
} catch (RuntimeException e) {
mReactContext.handleException(e);
}
}
protected abstract Result doInBackgroundGuarded();
protected abstract void onPostExecuteGuarded(Result result);
}