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[android,js][database] transactions support implemented

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This commit is contained in:
Salakar
2017-03-24 22:53:56 +00:00
parent 61d6358ce0
commit bb6b1aa7f2
6 changed files with 487 additions and 50 deletions
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android/src/main/java/io/invertase/firebase/database/RNFirebaseDatabase.java
+116 -14
View File
@@ -1,15 +1,16 @@
package io.invertase.firebase.database;
import java.util.List;
import java.util.Map;
import java.util.List;
import java.util.HashMap;
import android.net.Uri;
import android.os.AsyncTask;
import android.util.Log;
import java.util.HashMap;
import com.facebook.react.bridge.Callback;
import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.WritableArray;
import com.facebook.react.bridge.WritableMap;
import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.bridge.ReactMethod;
@@ -19,18 +20,22 @@ import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReadableMapKeySetIterator;
import com.facebook.react.bridge.WritableNativeArray;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.MutableData;
import com.google.firebase.database.ServerValue;
import com.google.firebase.database.OnDisconnect;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ServerValue;
import com.google.firebase.database.Transaction;
import io.invertase.firebase.Utils;
public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
private static final String TAG = "RNFirebaseDatabase";
private HashMap<String, RNFirebaseDatabaseReference> mDBListeners = new HashMap<String, RNFirebaseDatabaseReference>();
private HashMap<String, RNFirebaseDatabaseReference> mDBListeners = new HashMap<>();
private HashMap<String, RNFirebaseTransactionHandler> mTransactionHandlers = new HashMap<>();
private FirebaseDatabase mFirebaseDatabase;
public RNFirebaseDatabase(ReactApplicationContext reactContext) {
@@ -170,6 +175,109 @@ public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
}
}
/**
* @param path
* @param id
* @param applyLocally
*/
@ReactMethod
public void startTransaction(final String path, final String id, final Boolean applyLocally) {
AsyncTask.execute(new Runnable() {
@Override
public void run() {
DatabaseReference transactionRef = FirebaseDatabase.getInstance().getReference(path);
transactionRef.runTransaction(new Transaction.Handler() {
@Override
public Transaction.Result doTransaction(MutableData mutableData) {
final WritableMap updatesMap = Arguments.createMap();
updatesMap.putString("id", id);
updatesMap.putString("type", "update");
if (!mutableData.hasChildren()) {
Utils.mapPutValue("value", mutableData.getValue(), updatesMap);
} else {
Object value = Utils.castValue(mutableData);
if (value instanceof WritableNativeArray) {
updatesMap.putArray("value", (WritableArray) value);
} else {
updatesMap.putMap("value", (WritableMap) value);
}
}
RNFirebaseTransactionHandler rnFirebaseTransactionHandler = new RNFirebaseTransactionHandler();
mTransactionHandlers.put(id, rnFirebaseTransactionHandler);
AsyncTask.execute(new Runnable() {
@Override
public void run() {
Utils.sendEvent(getReactApplicationContext(), "database_transaction_event", updatesMap);
}
});
try {
rnFirebaseTransactionHandler.await();
} catch (InterruptedException e) {
rnFirebaseTransactionHandler.interrupted = true;
return Transaction.abort();
}
if (rnFirebaseTransactionHandler.abort) {
return Transaction.abort();
}
mutableData.setValue(rnFirebaseTransactionHandler.value);
return Transaction.success(mutableData);
}
@Override
public void onComplete(DatabaseError databaseError, boolean committed, DataSnapshot dataSnapshot) {
final WritableMap updatesMap = Arguments.createMap();
updatesMap.putString("id", id);
RNFirebaseTransactionHandler rnFirebaseTransactionHandler = mTransactionHandlers.get(id);
// TODO error conversion util for database to create web sdk codes based on DatabaseError
if (databaseError != null) {
updatesMap.putString("type", "error");
updatesMap.putInt("code", databaseError.getCode());
updatesMap.putString("message", databaseError.getMessage());
} else if (rnFirebaseTransactionHandler.interrupted) {
updatesMap.putString("type", "error");
updatesMap.putInt("code", 666);
updatesMap.putString("message", "RNFirebase transaction was interrupted, aborting.");
} else {
updatesMap.putString("type", "complete");
updatesMap.putBoolean("committed", committed);
updatesMap.putMap("snapshot", Utils.snapshotToMap(dataSnapshot));
}
Utils.sendEvent(getReactApplicationContext(), "database_transaction_event", updatesMap);
mTransactionHandlers.remove(id);
}
}, applyLocally);
}
});
}
/**
*
* @param id
* @param updates
*/
@ReactMethod
public void tryCommitTransaction(final String id, final ReadableMap updates) {
Map<String, Object> updatesReturned = Utils.recursivelyDeconstructReadableMap(updates);
RNFirebaseTransactionHandler rnFirebaseTransactionHandler = mTransactionHandlers.get(id);
if (rnFirebaseTransactionHandler != null) {
rnFirebaseTransactionHandler.signalUpdateReceived(updatesReturned);
}
}
@ReactMethod
public void on(final String path, final String modifiersString, final ReadableArray modifiersArray, final String eventName, final Callback callback) {
RNFirebaseDatabaseReference ref = this.getDBHandle(path, modifiersArray, modifiersString);
@@ -187,11 +295,7 @@ public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
}
@ReactMethod
public void once(final String path,
final String modifiersString,
final ReadableArray modifiersArray,
final String eventName,
final Callback callback) {
public void once(final String path, final String modifiersString, final ReadableArray modifiersArray, final String eventName, final Callback callback) {
RNFirebaseDatabaseReference ref = this.getDBHandle(path, modifiersArray, modifiersString);
ref.addOnceValueEventListener(callback);
}
@@ -336,9 +440,7 @@ public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
}
}
private RNFirebaseDatabaseReference getDBHandle(final String path,
final ReadableArray modifiersArray,
final String modifiersString) {
private RNFirebaseDatabaseReference getDBHandle(final String path, final ReadableArray modifiersArray, final String modifiersString) {
String key = this.getDBListenerKey(path, modifiersString);
RNFirebaseDatabaseReference r = mDBListeners.get(key);