Implement server statistics collection

2 files changed, 105 insertions, 0 deletions

diff --git a/src/org/traccar/database/DataManager.java b/src/org/traccar/database/DataManager.java
index 02adb0455..c58fe40a5 100644
--- a/src/org/traccar/database/DataManager.java
+++ b/src/org/traccar/database/DataManager.java
@@ -48,6 +48,7 @@ import org.traccar.model.GroupPermission;
 import org.traccar.model.Notification;
 import org.traccar.model.Position;
 import org.traccar.model.Server;
+import org.traccar.model.Statistics;
 import org.traccar.model.User;
 import org.traccar.model.DeviceGeofence;
 import org.traccar.model.GeofencePermission;
@@ -484,4 +485,16 @@ public class DataManager {
                 .setLong("id", attributeAliasId)
                 .executeUpdate();
     }
+
+    public Collection<Statistics> getStatistics() throws SQLException {
+        return QueryBuilder.create(dataSource, getQuery("database.selectStatistics"))
+                .executeQuery(Statistics.class);
+    }
+
+    public void addStatistics(Statistics statistics) throws SQLException {
+        statistics.setId(QueryBuilder.create(dataSource, getQuery("database.insertStatistics"), true)
+                .setObject(statistics)
+                .executeUpdate());
+    }
+
 }
diff --git a/src/org/traccar/database/StatisticsManager.java b/src/org/traccar/database/StatisticsManager.java
new file mode 100644
index 000000000..b21380332
--- /dev/null
+++ b/src/org/traccar/database/StatisticsManager.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.database;
+
+import org.traccar.Context;
+import org.traccar.helper.Log;
+import org.traccar.model.Statistics;
+
+import java.sql.SQLException;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.Set;
+
+public class StatisticsManager {
+
+    private static final int SPLIT_MODE = Calendar.MINUTE;
+
+    private int lastUpdate = Calendar.getInstance().get(SPLIT_MODE);
+
+    private Set<Long> users = new HashSet<>();
+    private Set<Long> devices = new HashSet<>();
+
+    private int requests;
+    private int messagesReceived;
+    private int messagesStored;
+
+    private void checkSplit() {
+        int currentUpdate = Calendar.getInstance().get(SPLIT_MODE);
+        if (lastUpdate != currentUpdate) {
+            Statistics statistics = new Statistics();
+            statistics.setCaptureTime(new Date());
+            statistics.setActiveUsers(users.size());
+            statistics.setActiveDevices(devices.size());
+            statistics.setRequests(requests);
+            statistics.setMessagesReceived(messagesReceived);
+            statistics.setMessagesStored(messagesStored);
+
+            try {
+                Context.getDataManager().addStatistics(statistics);
+            } catch (SQLException e) {
+                Log.warning(e);
+            }
+
+            users.clear();
+            devices.clear();
+            requests = 0;
+            messagesReceived = 0;
+            messagesStored = 0;
+            lastUpdate = currentUpdate;
+        }
+    }
+
+    public synchronized void registerUser(long userId) {
+        checkSplit();
+        users.add(userId);
+    }
+
+    public synchronized void registerDevice(long deviceId) {
+        checkSplit();
+        devices.add(deviceId);
+    }
+
+    public synchronized void registerRequest() {
+        checkSplit();
+        requests += 1;
+    }
+
+    public synchronized void registerMessageReceived() {
+        checkSplit();
+        messagesReceived += 1;
+    }
+
+    public synchronized void registerMessageStored() {
+        checkSplit();
+        messagesStored += 1;
+    }
+
+}