[firestore][android] transactions working
This commit is contained in:
Salakar
parent
5fb1ad6781
commit
dd1bbc87f5
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@ -1,7 +1,9 @@
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package io.invertase.firebase.firestore;
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import android.os.AsyncTask;
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import android.support.annotation.NonNull;
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import android.util.Log;
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import android.util.SparseArray;
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import com.facebook.react.bridge.Arguments;
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import com.facebook.react.bridge.Promise;
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@ -12,8 +14,11 @@ import com.facebook.react.bridge.ReadableArray;
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import com.facebook.react.bridge.ReadableMap;
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import com.facebook.react.bridge.WritableMap;
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import com.google.android.gms.tasks.OnCompleteListener;
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import com.google.android.gms.tasks.OnFailureListener;
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import com.google.android.gms.tasks.OnSuccessListener;
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import com.google.android.gms.tasks.Task;
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import com.google.firebase.FirebaseApp;
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import com.google.firebase.firestore.Transaction;
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import com.google.firebase.firestore.DocumentReference;
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import com.google.firebase.firestore.FieldValue;
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import com.google.firebase.firestore.FirebaseFirestore;
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@ -26,11 +31,12 @@ import java.util.List;
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import java.util.Map;
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import io.invertase.firebase.ErrorUtils;
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import io.invertase.firebase.Utils;
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public class RNFirebaseFirestore extends ReactContextBaseJavaModule {
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private static final String TAG = "RNFirebaseFirestore";
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// private SparseArray<RNFirebaseTransactionHandler> transactionHandlers = new SparseArray<>();
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private SparseArray<RNFirebaseFirestoreTransactionHandler> transactionHandlers = new SparseArray<>();
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RNFirebaseFirestore(ReactApplicationContext reactContext) {
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super(reactContext);
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@ -92,7 +98,7 @@ public class RNFirebaseFirestore extends ReactContextBaseJavaModule {
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break;
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case "SET":
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Map<String, Object> options = (Map) write.get("options");
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if (options != null && options.containsKey("merge") && (boolean)options.get("merge")) {
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if (options != null && options.containsKey("merge") && (boolean) options.get("merge")) {
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batch = batch.set(ref, data, SetOptions.merge());
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} else {
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batch = batch.set(ref, data);
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@ -113,7 +119,7 @@ public class RNFirebaseFirestore extends ReactContextBaseJavaModule {
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promise.resolve(null);
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} else {
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Log.e(TAG, "documentBatch:onComplete:failure", task.getException());
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RNFirebaseFirestore.promiseRejectException(promise, (FirebaseFirestoreException)task.getException());
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RNFirebaseFirestore.promiseRejectException(promise, (FirebaseFirestoreException) task.getException());
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}
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}
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});
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@ -160,6 +166,199 @@ public class RNFirebaseFirestore extends ReactContextBaseJavaModule {
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ref.update(data, promise);
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}
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/**
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* Try clean up previous transactions on reload
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*
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*/
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@Override
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public void onCatalystInstanceDestroy() {
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for (int i = 0, size = transactionHandlers.size(); i < size; i++) {
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RNFirebaseFirestoreTransactionHandler transactionHandler = transactionHandlers.get(i);
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if (transactionHandler != null) {
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transactionHandler.abort();
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}
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}
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transactionHandlers.clear();
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}
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/*
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* Transaction Methods
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*/
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/**
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* Calls the internal Firestore Transaction classes instance .get(ref) method and resolves with
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* the DocumentSnapshot.
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*
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* @param appName
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* @param transactionId
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* @param path
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* @param promise
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*/
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@ReactMethod
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public void transactionGetDocument(String appName, int transactionId, String path, final Promise promise) {
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RNFirebaseFirestoreTransactionHandler handler = transactionHandlers.get(transactionId);
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if (handler == null) {
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promise.reject(
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"internal-error",
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"An internal error occurred whilst attempting to find a native transaction by id."
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);
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} else {
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DocumentReference ref = getDocumentForAppPath(appName, path).getRef();
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handler.getDocument(ref, promise);
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}
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}
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/**
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* Aborts any pending signals and deletes the transaction handler.
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*
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* @param appName
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* @param transactionId
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*/
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@ReactMethod
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public void transactionDispose(String appName, int transactionId) {
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RNFirebaseFirestoreTransactionHandler handler = transactionHandlers.get(transactionId);
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if (handler != null) {
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handler.abort();
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transactionHandlers.delete(transactionId);
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}
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}
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/**
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* Signals to transactionHandler that the command buffer is ready.
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*
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* @param appName
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* @param transactionId
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* @param commandBuffer
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*/
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@ReactMethod
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public void transactionApplyBuffer(String appName, int transactionId, ReadableArray commandBuffer) {
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RNFirebaseFirestoreTransactionHandler handler = transactionHandlers.get(transactionId);
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if (handler != null) {
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handler.signalBufferReceived(commandBuffer);
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}
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}
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/**
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* Begin a new transaction via AsyncTask 's
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*
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* @param appName
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* @param transactionId
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*/
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@ReactMethod
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public void transactionBegin(final String appName, int transactionId) {
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final RNFirebaseFirestoreTransactionHandler transactionHandler = new RNFirebaseFirestoreTransactionHandler(appName, transactionId);
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transactionHandlers.put(transactionId, transactionHandler);
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AsyncTask.execute(new Runnable() {
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@Override
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public void run() {
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getFirestoreForApp(appName)
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.runTransaction(new Transaction.Function<Void>() {
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@Override
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public Void apply(@NonNull Transaction transaction) throws FirebaseFirestoreException {
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transactionHandler.setFirestoreTransaction(transaction);
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// emit the update cycle to JS land using an async task
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// otherwise it gets blocked by the pending lock await
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AsyncTask.execute(new Runnable() {
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@Override
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public void run() {
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WritableMap eventMap = transactionHandler.createEventMap(null, "update");
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Utils.sendEvent(getReactApplicationContext(), "firestore_transaction_event", eventMap);
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}
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});
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// wait for a signal to be received from JS land code
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transactionHandler.await();
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// exit early if aborted - has to throw an exception otherwise will just keep trying ...
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if (transactionHandler.aborted) {
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throw new FirebaseFirestoreException("abort", FirebaseFirestoreException.Code.ABORTED);
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}
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// exit early if timeout from bridge - has to throw an exception otherwise will just keep trying ...
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if (transactionHandler.timeout) {
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throw new FirebaseFirestoreException("timeout", FirebaseFirestoreException.Code.DEADLINE_EXCEEDED);
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}
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// process any buffered commands from JS land
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ReadableArray buffer = transactionHandler.getCommandBuffer();
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// exit early if no commands
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if (buffer == null) {
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return null;
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}
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for (int i = 0, size = buffer.size(); i < size; i++) {
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ReadableMap data;
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ReadableMap command = buffer.getMap(i);
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String path = command.getString("path");
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String type = command.getString("type");
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RNFirebaseFirestoreDocumentReference documentReference = getDocumentForAppPath(appName, path);
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switch (type) {
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case "set":
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data = command.getMap("data");
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ReadableMap options = command.getMap("options");
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Map<String, Object> setData = FirestoreSerialize.parseReadableMap(RNFirebaseFirestore.getFirestoreForApp(appName), data);
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if (options != null && options.hasKey("merge") && options.getBoolean("merge")) {
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transaction.set(documentReference.getRef(), setData, SetOptions.merge());
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} else {
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transaction.set(documentReference.getRef(), setData);
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}
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break;
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case "update":
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data = command.getMap("data");
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Map<String, Object> updateData = FirestoreSerialize.parseReadableMap(RNFirebaseFirestore.getFirestoreForApp(appName), data);
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transaction.update(documentReference.getRef(), updateData);
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break;
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case "delete":
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transaction.delete(documentReference.getRef());
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break;
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default:
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throw new IllegalArgumentException("Unknown command type at index " + i + ".");
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}
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}
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return null;
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}
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})
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.addOnSuccessListener(new OnSuccessListener<Void>() {
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@Override
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public void onSuccess(Void aVoid) {
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if (!transactionHandler.aborted) {
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Log.d(TAG, "Transaction onSuccess!");
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WritableMap eventMap = transactionHandler.createEventMap(null, "complete");
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Utils.sendEvent(getReactApplicationContext(), "firestore_transaction_event", eventMap);
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}
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}
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})
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.addOnFailureListener(new OnFailureListener() {
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@Override
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public void onFailure(@NonNull Exception e) {
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if (!transactionHandler.aborted) {
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Log.w(TAG, "Transaction onFailure.", e);
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WritableMap eventMap = transactionHandler.createEventMap((FirebaseFirestoreException) e, "error");
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Utils.sendEvent(getReactApplicationContext(), "firestore_transaction_event", eventMap);
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}
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}
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});
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}
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});
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}
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/*
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* INTERNALS/UTILS
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*/
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@ -145,6 +145,10 @@ public class RNFirebaseFirestoreDocumentReference {
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* INTERNALS/UTILS
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*/
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public DocumentReference getRef() {
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return ref;
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}
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boolean hasListeners() {
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return !documentSnapshotListeners.isEmpty();
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}
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@ -0,0 +1,166 @@
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package io.invertase.firebase.firestore;
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import com.facebook.react.bridge.Arguments;
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import com.facebook.react.bridge.Promise;
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import com.facebook.react.bridge.ReadableArray;
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import com.facebook.react.bridge.WritableMap;
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import com.google.firebase.firestore.DocumentReference;
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import com.google.firebase.firestore.DocumentSnapshot;
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import com.google.firebase.firestore.FirebaseFirestoreException;
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import com.google.firebase.firestore.Transaction;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.locks.Condition;
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import java.util.concurrent.locks.ReentrantLock;
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import javax.annotation.Nullable;
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class RNFirebaseFirestoreTransactionHandler {
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private String appName;
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private long timeoutAt;
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private int transactionId;
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private final ReentrantLock lock;
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private final Condition condition;
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private ReadableArray commandBuffer;
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private Transaction firestoreTransaction;
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boolean aborted = false;
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boolean timeout = false;
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RNFirebaseFirestoreTransactionHandler(String app, int id) {
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appName = app;
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transactionId = id;
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updateInternalTimeout();
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lock = new ReentrantLock();
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condition = lock.newCondition();
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}
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/*
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* -------------
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* PACKAGE API
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* -------------
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*/
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/**
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* Abort the currently in progress transaction if any.
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*/
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void abort() {
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aborted = true;
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safeUnlock();
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}
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/**
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* Keep a ref to the Transaction instance.
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*
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* @param firestoreTransaction
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*/
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void setFirestoreTransaction(Transaction firestoreTransaction) {
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this.firestoreTransaction = firestoreTransaction;
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}
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/**
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* Signal that the transaction buffer has been received and needs to be processed.
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*
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* @param buffer
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*/
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void signalBufferReceived(ReadableArray buffer) {
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lock.lock();
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try {
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commandBuffer = buffer;
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condition.signalAll();
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} finally {
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safeUnlock();
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}
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}
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/**
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* Wait for signalBufferReceived to signal condition
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*
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* @throws InterruptedException
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*/
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void await() {
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lock.lock();
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updateInternalTimeout();
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try {
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while (!aborted && !timeout && !condition.await(10, TimeUnit.MILLISECONDS)) {
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if (System.currentTimeMillis() > timeoutAt) timeout = true;
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}
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} catch (InterruptedException ie) {
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// should never be interrupted
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} finally {
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safeUnlock();
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}
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}
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/**
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* Get the current pending command buffer.
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*
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* @return
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*/
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ReadableArray getCommandBuffer() {
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return commandBuffer;
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}
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/**
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* Get and resolve a DocumentSnapshot from transaction.get(ref);
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*
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* @param ref
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* @param promise
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*/
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void getDocument(DocumentReference ref, Promise promise) {
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updateInternalTimeout();
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try {
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DocumentSnapshot documentSnapshot = firestoreTransaction.get(ref);
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WritableMap writableMap = FirestoreSerialize.snapshotToWritableMap(documentSnapshot);
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promise.resolve(writableMap);
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} catch (FirebaseFirestoreException firestoreException) {
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WritableMap jsError = RNFirebaseFirestore.getJSError(firestoreException);
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promise.reject(jsError.getString("code"), jsError.getString("message"));
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}
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}
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/**
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* Event map for `firestore_transaction_event` events.
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*
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* @param error
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* @param type
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* @return
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*/
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WritableMap createEventMap(@Nullable FirebaseFirestoreException error, String type) {
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WritableMap eventMap = Arguments.createMap();
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eventMap.putInt("id", transactionId);
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eventMap.putString("appName", appName);
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if (error != null) {
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eventMap.putString("type", "error");
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eventMap.putMap("error", RNFirebaseFirestore.getJSError(error));
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} else {
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eventMap.putString("type", type);
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}
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return eventMap;
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}
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/*
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* -------------
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* INTERNAL API
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* -------------
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*/
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private void safeUnlock() {
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if (lock.isLocked()) {
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lock.unlock();
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}
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}
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private void updateInternalTimeout() {
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timeoutAt = System.currentTimeMillis() + 15000;
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}
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}
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