mirror of https://github.com/M66B/FairEmail.git
197 lines
6.5 KiB
Java
197 lines
6.5 KiB
Java
|
/*
|
||
|
* Copyright 2018 The Android Open Source Project
|
||
|
*
|
||
|
* 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 androidx.room;
|
||
|
|
||
|
import android.content.ComponentName;
|
||
|
import android.content.Context;
|
||
|
import android.content.Intent;
|
||
|
import android.content.ServiceConnection;
|
||
|
import android.os.IBinder;
|
||
|
import android.os.RemoteException;
|
||
|
import android.util.Log;
|
||
|
|
||
|
import androidx.annotation.NonNull;
|
||
|
import androidx.annotation.Nullable;
|
||
|
|
||
|
import java.util.Set;
|
||
|
import java.util.concurrent.Executor;
|
||
|
import java.util.concurrent.atomic.AtomicBoolean;
|
||
|
|
||
|
/**
|
||
|
* Handles all the communication from {@link RoomDatabase} and {@link InvalidationTracker} to
|
||
|
* {@link MultiInstanceInvalidationService}.
|
||
|
*/
|
||
|
class MultiInstanceInvalidationClient {
|
||
|
|
||
|
/**
|
||
|
* The application context.
|
||
|
*/
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final Context mAppContext;
|
||
|
|
||
|
/**
|
||
|
* The name of the database file.
|
||
|
*/
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final String mName;
|
||
|
|
||
|
/**
|
||
|
* The client ID assigned by {@link MultiInstanceInvalidationService}.
|
||
|
*/
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
int mClientId;
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final InvalidationTracker mInvalidationTracker;
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final InvalidationTracker.Observer mObserver;
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
@Nullable
|
||
|
IMultiInstanceInvalidationService mService;
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final Executor mExecutor;
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final IMultiInstanceInvalidationCallback mCallback =
|
||
|
new IMultiInstanceInvalidationCallback.Stub() {
|
||
|
@Override
|
||
|
public void onInvalidation(final String[] tables) {
|
||
|
mExecutor.execute(new Runnable() {
|
||
|
@Override
|
||
|
public void run() {
|
||
|
mInvalidationTracker.notifyObserversByTableNames(tables);
|
||
|
}
|
||
|
});
|
||
|
}
|
||
|
};
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final AtomicBoolean mStopped = new AtomicBoolean(false);
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final ServiceConnection mServiceConnection = new ServiceConnection() {
|
||
|
|
||
|
@Override
|
||
|
public void onServiceConnected(ComponentName name, IBinder service) {
|
||
|
mService = IMultiInstanceInvalidationService.Stub.asInterface(service);
|
||
|
mExecutor.execute(mSetUpRunnable);
|
||
|
}
|
||
|
|
||
|
@Override
|
||
|
public void onServiceDisconnected(ComponentName name) {
|
||
|
mExecutor.execute(mRemoveObserverRunnable);
|
||
|
mService = null;
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final Runnable mSetUpRunnable = new Runnable() {
|
||
|
@Override
|
||
|
public void run() {
|
||
|
try {
|
||
|
final IMultiInstanceInvalidationService service = mService;
|
||
|
if (service != null) {
|
||
|
mClientId = service.registerCallback(mCallback, mName);
|
||
|
mInvalidationTracker.addObserver(mObserver);
|
||
|
}
|
||
|
} catch (RemoteException e) {
|
||
|
Log.w(Room.LOG_TAG, "Cannot register multi-instance invalidation callback", e);
|
||
|
}
|
||
|
}
|
||
|
};
|
||
|
|
||
|
// synthetic access
|
||
|
@SuppressWarnings("WeakerAccess")
|
||
|
final Runnable mRemoveObserverRunnable = new Runnable() {
|
||
|
@Override
|
||
|
public void run() {
|
||
|
mInvalidationTracker.removeObserver(mObserver);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* @param context The Context to be used for binding
|
||
|
* {@link IMultiInstanceInvalidationService}.
|
||
|
* @param name The name of the database file.
|
||
|
* @param serviceIntent The {@link Intent} used for binding
|
||
|
* {@link IMultiInstanceInvalidationService}.
|
||
|
* @param invalidationTracker The {@link InvalidationTracker}
|
||
|
* @param executor The background executor.
|
||
|
*/
|
||
|
MultiInstanceInvalidationClient(Context context, String name, Intent serviceIntent,
|
||
|
InvalidationTracker invalidationTracker, Executor executor) {
|
||
|
mAppContext = context.getApplicationContext();
|
||
|
mName = name;
|
||
|
mInvalidationTracker = invalidationTracker;
|
||
|
mExecutor = executor;
|
||
|
// Use all tables names for observer.
|
||
|
final Set<String> tableNames = invalidationTracker.mTableIdLookup.keySet();
|
||
|
mObserver = new InvalidationTracker.Observer(tableNames.toArray(new String[0])) {
|
||
|
@Override
|
||
|
public void onInvalidated(@NonNull Set<String> tables) {
|
||
|
if (mStopped.get()) {
|
||
|
return;
|
||
|
}
|
||
|
try {
|
||
|
final IMultiInstanceInvalidationService service = mService;
|
||
|
if (service != null) {
|
||
|
service.broadcastInvalidation(mClientId, tables.toArray(new String[0]));
|
||
|
}
|
||
|
} catch (RemoteException e) {
|
||
|
Log.w(Room.LOG_TAG, "Cannot broadcast invalidation", e);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
@Override
|
||
|
boolean isRemote() {
|
||
|
return true;
|
||
|
}
|
||
|
};
|
||
|
mAppContext.bindService(serviceIntent, mServiceConnection, Context.BIND_AUTO_CREATE);
|
||
|
}
|
||
|
|
||
|
void stop() {
|
||
|
if (mStopped.compareAndSet(false, true)) {
|
||
|
mInvalidationTracker.removeObserver(mObserver);
|
||
|
try {
|
||
|
final IMultiInstanceInvalidationService service = mService;
|
||
|
if (service != null) {
|
||
|
service.unregisterCallback(mCallback, mClientId);
|
||
|
}
|
||
|
} catch (RemoteException e) {
|
||
|
Log.w(Room.LOG_TAG, "Cannot unregister multi-instance invalidation callback", e);
|
||
|
}
|
||
|
mAppContext.unbindService(mServiceConnection);
|
||
|
}
|
||
|
}
|
||
|
}
|