notifications server refactoring

1 files changed, 90 insertions, 0 deletions

diff --git a/juick-notifications/src/main/java/com/juick/components/FirebaseManager.java b/juick-notifications/src/main/java/com/juick/components/FirebaseManager.java
new file mode 100644
index 00000000..54e7c97a
--- /dev/null
+++ b/juick-notifications/src/main/java/com/juick/components/FirebaseManager.java
@@ -0,0 +1,90 @@
+package com.juick.components;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.android.gcm.server.*;
+import com.juick.ExternalToken;
+import com.juick.User;
+import com.juick.service.component.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class FirebaseManager implements NotificationListener {
+    private static Logger logger = LoggerFactory.getLogger(FirebaseManager.class);
+    @Inject
+    ObjectMapper jsonMapper;
+    @Value("${gcm_key:}")
+    private String gcmKey;
+    @Inject
+    private NotificationsManager notificationsManager;
+
+    private Sender GCMSender;
+
+    @PostConstruct
+    public void initialize() {
+        GCMSender = new Sender(gcmKey, Endpoint.GCM);
+    }
+
+    @Override
+    public void processMessageEvent(MessageEvent messageEvent) {
+        com.juick.Message jmsg = messageEvent.getMessage();
+        List<User> users = messageEvent.getUsers();
+        // GCM
+        List<String> regids = users.stream().flatMap(u -> u.getTokens().stream()).filter(d -> d.getType().equals("gcm"))
+                .map(ExternalToken::getToken).collect(Collectors.toList());
+        if (!regids.isEmpty()) {
+            try {
+                String json = jsonMapper.writeValueAsString(jmsg);
+                logger.info(json);
+                Message message = new Message.Builder().addData("message", json).build();
+                MulticastResult result = GCMSender.send(message, regids, 3);
+                List<Result> results = result.getResults();
+                for (int i = 0; i < results.size(); i++) {
+                    Result currentResult = results.get(i);
+                    logger.info("RES {}: {}", i, currentResult);
+                    List<String> errorCodes = Arrays.asList(Constants.ERROR_MISMATCH_SENDER_ID, Constants.ERROR_NOT_REGISTERED);
+                    if (errorCodes.contains(currentResult.getErrorCodeName())) {
+                        // assuming results are in order of regids
+                        // http://stackoverflow.com/a/11594531/1097384
+                        String currentId = regids.get(i);
+                        logger.info("{} is scheduled to remove", currentId);
+                        notificationsManager.addInvalidGCMToken(currentId);
+                    }
+                }
+            } catch (IOException ex) {
+                logger.error(ex.getMessage(), ex);
+            } catch (IllegalArgumentException err) {
+                logger.warn("Android: Invalid API Key", err);
+            }
+        } else {
+            logger.info("GMS: no recipients");
+        }
+    }
+
+    @Override
+    public void processSubscribeEvent(SubscribeEvent subscribeEvent) {
+
+    }
+
+    @Override
+    public void processLikeEvent(LikeEvent likeEvent) {
+
+    }
+
+    @Override
+    public void processPingEvent(PingEvent pingEvent) {
+
+    }
+
+    @Override
+    public void processMessageReadEvent(MessageReadEvent messageReadEvent) {
+
+    }
+}