[英]Firebase persisted write failing after being offline
I have an Android application that uses Firebase as backend. 我有一个使用Firebase作为后端的Android应用程序。 Now that Firebase has support for local persistence I decided to get rid of my own local storage solution and use the built-in instead.
既然Firebase支持本地持久性,我决定放弃自己的本地存储解决方案,而使用内置的解决方案。
Everything is working, except for one thing. 除了一件事,一切都在工作。 Making changes while being offline, closing the app, connect, and start the app.
离线时进行更改,关闭应用程序,然后连接并启动应用程序。
The code that I use to update my data on the server is something like this: 我用来更新服务器上数据的代码如下所示:
public void saveDataToServer(String id, Boolean isHandled) {
Firebase firebase = new Firebase("https://example.firebaseio.com/item_data/items/1234/data").child(id);
if(firebase == null)
return;
firebase.authWithCustomToken(mToken, mAuthResultHandler);
Map<String, Object> children = new HashMap<>();
children.put("updated_at", FireBaseHelper.getFormattedTimestamp());
children.put("is_handled", isHandled);
firebase.updateChildren(children);
}
mMainFirebaseInstance is some Firebase object that is on the root level of where this data is saved. mMainFirebaseInstance是一些Firebase对象,位于保存此数据的根级别上。 And this all runs in a
Service
that is connected to my Activities/Fragments 所有这些都在与我的活动/片段连接的
Service
中运行
Sidenote: I get the authentication token mToken
from some REST API that someone else made for me to use. 旁注:我从其他人供我使用的某些REST API中获取身份验证令牌
mToken
。
When I am connected, have the app connected and make changes: everything works 连接到网络后,连接应用程序并进行更改:一切正常
When I am not connected, open the app, make changes, close the app, open the app and connect: everything works 当我没有连接时,打开应用程序,进行更改,关闭应用程序,打开应用程序并连接:一切正常
When I am not connected, open the app, make changes, close the app, connect and open the app: The following error is logged: 当我没有连接时,打开应用程序,进行更改,关闭应用程序,连接并打开应用程序:记录以下错误:
06-22 17:51:52.343 28073-28395/? W/RepoOperation﹕ Persisted write at /item_data/items/7454/data/7454141033945571998119 failed: FirebaseError: Invalid token in path
I've searched in Firebase's documentation and can't figure out where the problem is. 我在Firebase的文档中进行了搜索,无法确定问题出在哪里。 I would say that this has something to do with the authentication, but I don't know anymore where to look.
我想说这与身份验证有关,但是我不知道在哪里看。
So my question is: What is the problem here? 所以我的问题是:这是什么问题? What am I doing wrong?
我究竟做错了什么?
EDIT: 编辑:
The FireBaseHelper looks like this: FireBaseHelper看起来像这样:
class FireBaseHelper {
public static Firebase getItemsBase(String itemId) {
Firebase fb = new Firebase(Constants.FIREBASE_URL + "item_data/items/" + itemId + "/data");
return fb;
}
public static String getFormattedTimestamp() {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.US);
return simpleDateFormat.format(Calendar.getInstance().getTime());
}
}
It can create the main Firebase instance and return a timestamp in a specific format. 它可以创建主要的Firebase实例,并以特定格式返回时间戳。 Constants.FIREBASE_URL is just
https://example.firebaseio.com/
Constants.FIREBASE_URL只是
https://example.firebaseio.com/
EDIT2: EDIT2:
mMainFirebaseInstance = FireBaseHelper.getItemsBase("1234");
which would be replaceable by 可以被替换
mMainFirebaseInstance = new Firebase("https://example.firebaseio.com/item_data/items/1234/data");
A possible timestamp is: 可能的时间戳是:
2015-06-22 23:12:24
The id that is used in the saveDataToServer is retrieved from a snapshot that is given to me in a ValueEventListener. 从DataEventListener中提供给我的快照中检索saveDataToServer中使用的ID。 For example:
例如:
ValueEventListener valueEventListener = new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
HashMap data = dataSnapshot.getValue(HashMap.class);
Set keySet = data.keySet();
String id = keySet.get(0);
}
...
}
EDIT3: EDIT3:
Android: 5.0 的Android:5.0
Firebase: 2.3.0+ Firebase:2.3.0+
Java: 7 爪哇:7
This turned out to be a bug in the Firebase Android SDK. 原来这是Firebase Android SDK中的错误。 It has been fixed in version 2.3.1 that was just released.
在刚刚发布的2.3.1版本中已修复该问题。 See https://www.firebase.com/docs/android/changelog.html
参见https://www.firebase.com/docs/android/changelog.html
I can reproduce the behavior you're seeing with this Activity.onCreate
: 我可以使用
Activity.onCreate
复制您看到的行为:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Firebase.setAndroidContext(this);
Firebase.getDefaultConfig().setPersistenceEnabled(true);
Firebase.getDefaultConfig().setLogLevel(Logger.Level.DEBUG);
Firebase ref = new Firebase("https://stackoverflow.firebaseio.com/30987733");
Map<String, Object> children = new HashMap<>();
children.put("updated_at", new Date().toString());
children.put("is_handled", true);
ref.updateChildren(children);
}
The steps to reproduce that go with the above code: 复制上述代码的步骤:
updateChildren
updateChildren
In my tests, the second update does get written to Firebase. 在我的测试中,第二个更新确实写入了Firebase。 But there is a warning written in the Android logs:
但是Android日志中有一条警告:
W/RepoOperation﹕ Persisted write at /30987733 failed: FirebaseError: Invalid token in path
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.