From 0a853f2aa3556554acd0b43a5008c43c345fa300 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Thu, 29 Sep 2022 17:57:22 -0700
Subject: Synchronize queued commands

---
 .../org/traccar/broadcast/BroadcastInterface.java  |  3 +++
 .../org/traccar/broadcast/BroadcastMessage.java    | 10 ++++++++++
 .../broadcast/MulticastBroadcastService.java       |  9 +++++++++
 .../java/org/traccar/database/CommandsManager.java | 22 ++++++++++++++++++++--
 4 files changed, 42 insertions(+), 2 deletions(-)

(limited to 'src/main/java/org')

diff --git a/src/main/java/org/traccar/broadcast/BroadcastInterface.java b/src/main/java/org/traccar/broadcast/BroadcastInterface.java
index dddba68b6..673ebd8b8 100644
--- a/src/main/java/org/traccar/broadcast/BroadcastInterface.java
+++ b/src/main/java/org/traccar/broadcast/BroadcastInterface.java
@@ -31,6 +31,9 @@ public interface BroadcastInterface {
     default void updateEvent(boolean local, long userId, Event event) {
     }
 
+    default void updateCommand(boolean local, long deviceId) {
+    }
+
     default void invalidateObject(boolean local, Class<? extends BaseModel> clazz, long id) {
     }
 
diff --git a/src/main/java/org/traccar/broadcast/BroadcastMessage.java b/src/main/java/org/traccar/broadcast/BroadcastMessage.java
index 3e22be7e0..985848d04 100644
--- a/src/main/java/org/traccar/broadcast/BroadcastMessage.java
+++ b/src/main/java/org/traccar/broadcast/BroadcastMessage.java
@@ -63,6 +63,16 @@ public class BroadcastMessage {
         this.event = event;
     }
 
+    private Long commandDeviceId;
+
+    public Long getCommandDeviceId() {
+        return commandDeviceId;
+    }
+
+    public void setCommandDeviceId(Long commandDeviceId) {
+        this.commandDeviceId = commandDeviceId;
+    }
+
     private Map<String, Long> changes;
 
     public Map<String, Long> getChanges() {
diff --git a/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java b/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java
index be65b7826..b1b66f1e3 100644
--- a/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java
+++ b/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java
@@ -102,6 +102,13 @@ public class MulticastBroadcastService implements BroadcastService {
         sendMessage(message);
     }
 
+    @Override
+    public void updateCommand(boolean local, long deviceId) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setCommandDeviceId(deviceId);
+        sendMessage(message);
+    }
+
     @Override
     public void invalidateObject(boolean local, Class<? extends BaseModel> clazz, long id) {
         BroadcastMessage message = new BroadcastMessage();
@@ -136,6 +143,8 @@ public class MulticastBroadcastService implements BroadcastService {
             listeners.forEach(listener -> listener.updatePosition(false, message.getPosition()));
         } else if (message.getUserId() != null && message.getEvent() != null) {
             listeners.forEach(listener -> listener.updateEvent(false, message.getUserId(), message.getEvent()));
+        } else if (message.getCommandDeviceId() != null) {
+            listeners.forEach(listener -> listener.updateCommand(false, message.getCommandDeviceId()));
         } else if (message.getChanges() != null) {
             var iterator = message.getChanges().entrySet().iterator();
             if (iterator.hasNext()) {
diff --git a/src/main/java/org/traccar/database/CommandsManager.java b/src/main/java/org/traccar/database/CommandsManager.java
index d56b4d472..53040ad53 100644
--- a/src/main/java/org/traccar/database/CommandsManager.java
+++ b/src/main/java/org/traccar/database/CommandsManager.java
@@ -18,6 +18,8 @@ package org.traccar.database;
 
 import org.traccar.BaseProtocol;
 import org.traccar.ServerManager;
+import org.traccar.broadcast.BroadcastInterface;
+import org.traccar.broadcast.BroadcastService;
 import org.traccar.model.Command;
 import org.traccar.model.Device;
 import org.traccar.model.Position;
@@ -40,21 +42,24 @@ import java.util.Collection;
 import java.util.stream.Collectors;
 
 @Singleton
-public class CommandsManager {
+public class CommandsManager implements BroadcastInterface {
 
     private final Storage storage;
     private final ServerManager serverManager;
     private final SmsManager smsManager;
     private final ConnectionManager connectionManager;
+    private final BroadcastService broadcastService;
 
     @Inject
     public CommandsManager(
             Storage storage, ServerManager serverManager, @Nullable SmsManager smsManager,
-            ConnectionManager connectionManager) {
+            ConnectionManager connectionManager, BroadcastService broadcastService) {
         this.storage = storage;
         this.serverManager = serverManager;
         this.smsManager = smsManager;
         this.connectionManager = connectionManager;
+        this.broadcastService = broadcastService;
+        broadcastService.registerListener(this);
     }
 
     public boolean sendCommand(Command command) throws Exception {
@@ -81,6 +86,7 @@ public class CommandsManager {
                 deviceSession.sendCommand(command);
             } else {
                 storage.addObject(QueuedCommand.fromCommand(command), new Request(new Columns.Exclude("id")));
+                broadcastService.updateCommand(true, deviceId);
                 return false;
             }
         }
@@ -108,4 +114,16 @@ public class CommandsManager {
         }
     }
 
+    @Override
+    public void updateCommand(boolean local, long deviceId) {
+        if (!local) {
+            DeviceSession deviceSession = connectionManager.getDeviceSession(deviceId);
+            if (deviceSession != null && deviceSession.supportsLiveCommands()) {
+                for (Command command : readQueuedCommands(deviceId)) {
+                    deviceSession.sendCommand(command);
+                }
+            }
+        }
+    }
+
 }
-- 
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