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Code Issues Releases Wiki Activity

Fixes a subscription duplicating bug in the notification client.

This commit is contained in:
Vavassor 2017-06-05 18:40:56 -04:00
parent 1935253c18
commit 19f140f9c6
1 changed files with 29 additions and 10 deletions
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39
app/src/main/java/com/keylesspalace/tusky/util/PushNotificationClient.java
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@ -3,6 +3,7 @@ package com.keylesspalace.tusky.util;
import android.app.NotificationManager;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v4.util.ArraySet;
import android.text.Spanned;
import android.util.Log;
@ -27,7 +28,6 @@ import org.eclipse.paho.client.mqttv3.MqttMessage;
import java.io.InputStream;
import java.util.ArrayDeque;
import java.util.ArrayList;
import static android.content.Context.NOTIFICATION_SERVICE;
@ -45,10 +45,6 @@ public class PushNotificationClient {
Type type;
String topic;
QueuedAction(Type type) {
this.type = type;
}
QueuedAction(Type type, String topic) {
this.type = type;
this.topic = topic;
@ -57,12 +53,12 @@ public class PushNotificationClient {
private MqttAndroidClient mqttAndroidClient;
private ArrayDeque<QueuedAction> queuedActions;
private ArrayList<String> subscribedTopics;
private ArraySet<String> subscribedTopics;
public PushNotificationClient(final @NonNull Context applicationContext,
@NonNull String serverUri) {
queuedActions = new ArrayDeque<>();
subscribedTopics = new ArrayList<>();
subscribedTopics = new ArraySet<>();
// Create the MQTT client.
String clientId = MqttClient.generateClientId();
@ -95,6 +91,26 @@ public class PushNotificationClient {
});
}
private void queueAction(QueuedAction.Type type, String topic) {
// Search queue for duplicates and if one is found, return before it's added to the queue.
for (QueuedAction action : queuedActions) {
if (action.type == type) {
switch (type) {
case SUBSCRIBE:
case UNSUBSCRIBE:
if (!action.topic.equals(topic)) {
return;
}
break;
case DISCONNECT:
return;
}
}
}
// Add the new unique action.
queuedActions.add(new QueuedAction(type, topic));
}
private void flushQueuedActions() {
while (!queuedActions.isEmpty()) {
QueuedAction action = queuedActions.pop();
@ -160,7 +176,7 @@ public class PushNotificationClient {
/** Disconnect from the MQTT broker. */
public void disconnect() {
if (!mqttAndroidClient.isConnected()) {
queuedActions.add(new QueuedAction(QueuedAction.Type.DISCONNECT));
queueAction(QueuedAction.Type.DISCONNECT, null);
return;
}
try {
@ -178,7 +194,10 @@ public class PushNotificationClient {
/** Subscribe to the push notification topic. */
public void subscribeToTopic(final String topic) {
if (!mqttAndroidClient.isConnected()) {
queuedActions.add(new QueuedAction(QueuedAction.Type.SUBSCRIBE, topic));
queueAction(QueuedAction.Type.SUBSCRIBE, topic);
return;
}
if (subscribedTopics.contains(topic)) {
return;
}
try {
@ -204,7 +223,7 @@ public class PushNotificationClient {
/** Unsubscribe from the push notification topic. */
public void unsubscribeToTopic(String topic) {
if (!mqttAndroidClient.isConnected()) {
queuedActions.add(new QueuedAction(QueuedAction.Type.UNSUBSCRIBE, topic));
queueAction(QueuedAction.Type.UNSUBSCRIBE, topic);
return;
}
try {