getDataFromCache(...) not working

[papo2608]

I tried to use getDataFromCache(final Class clazz, final String cacheKey) in onResume of an activity but the app ends in an ANR error.

The SpiceManger was started in onStart. I figured out that the service is never connected in this case (onServiceConnected isn't called) and so waitForServiceToBeBound ends in an infinite loop.

Can you please tell me whats the right time/place to call getDataFromCache?

[rciovati]

Could you post a simple project that reproduces this?

[papo2608]

You can reproduce this issue with:

1. checkout robospice-sample-spring-android
2. I'm using Gson instead of Jackson
3. put following lines of code in your MainActivity class:

    @Override
    protected void onResume() {
        super.onResume();
        ListTweets tweets;
        try {
            Future<ListTweets> task = contentManager.getDataFromCache(ListTweets.class, "tweets.android");
            tweets = task.get();
        } catch (CacheLoadingException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (ExecutionException e) {
            e.printStackTrace();
        }
    }

4 search with the query "android"
5 you get an ANR error

[stephanenicolas]

Was you spiceManager started before reaching this line ?

Also, please consider the asynchronous nature of a call to
getDataFromCache. When you call this method, it will return a future as the
spiceManager must bind to the spiceService and, when bound, ask for the
cache content.

When you call the method get() of that future, it will block until the
getDataFromCache actually completes. This operation should not be called on
the main thread but inside an AsyncTask. Otherwise, get will block your UI
thread and create an ANR. There is no workaround for it.

Stéphane

2013/1/19 papo2608 notifications@github.com

You can reproduce this issue with:

1. checkout robospice-sample-spring-android
2. I'm using Gson instead of Jackson
3. put following lines of code in your MainActivity class:

@Override
protected void onResume() {
    super.onResume();
    ListTweets tweets;
    try {
        Future<ListTweets> task = contentManager.getDataFromCache(ListTweets.class, "tweets.android");
        tweets = task.get();
    } catch (CacheLoadingException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } catch (ExecutionException e) {
        e.printStackTrace();
    }
}

4 search with the query "android"
5 you get an ANR error

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/30#issuecomment-12455292.

Stéphane NICOLAS,
OCTO Technology
Développeur & Consultant Android / Java
..........................................................
50, Avenue des Champs-Elysées
75008 Paris
+33 (0)6.26.32.34.09
www.octo.com - blog.octo.com
www.usievents.com
...........................................................

[rciovati]

I was writing what @stephanenicolas said.

BTW, you can use the getFromCachemethod that is async. ;)
We use it in the same sample: http://bit.ly/WrhFNn

[stephanenicolas]

Right. Thx Ricardo. ;)

2013/1/19 Riccardo Ciovati notifications@github.com

I was writing what stephanenicolas said.

BTW, you can use the getFromCachemethod wich is async. ;)

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/30#issuecomment-12455417.

Stéphane NICOLAS,
OCTO Technology
Développeur & Consultant Android / Java
..........................................................
50, Avenue des Champs-Elysées
75008 Paris
+33 (0)6.26.32.34.09
www.octo.com - blog.octo.com
www.usievents.com
...........................................................

[papo2608]

OK, so there is no possibility to get cached data synchronously?