3 files changed, 226 insertions, 5 deletions
diff --git a/src/org/traccar/database/AliasesManager.java b/src/org/traccar/database/AliasesManager.java
new file mode 100644
index 000000000..6c09e8731
--- /dev/null
+++ b/src/org/traccar/database/AliasesManager.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ * Copyright 2016 Andrey Kunitsyn (abyss@fox5.ru)
+ *
+ * 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 java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.traccar.Context;
+import org.traccar.helper.Log;
+import org.traccar.model.AttributeAlias;
+
+public class AliasesManager {
+
+    private final DataManager dataManager;
+
+    private final Map<Long, Set<AttributeAlias>> deviceAliases = new ConcurrentHashMap<>();
+    private final Map<Long, AttributeAlias> aliasesById = new ConcurrentHashMap<>();
+
+    public AliasesManager(DataManager dataManager) {
+        this.dataManager = dataManager;
+        if (dataManager != null) {
+            try {
+                for (AttributeAlias attributeAlias : dataManager.getAttributeAliases()) {
+                    getAttributeAliases(attributeAlias.getDeviceId())
+                            .add(attributeAlias);
+                    aliasesById.put(attributeAlias.getId(), attributeAlias);
+                }
+            } catch (SQLException error) {
+                Log.warning(error);
+            }
+        }
+    }
+
+    public Set<AttributeAlias> getAttributeAliases(long deviceId) {
+        if (!deviceAliases.containsKey(deviceId)) {
+            deviceAliases.put(deviceId, new HashSet<AttributeAlias>());
+        }
+        return deviceAliases.get(deviceId);
+    }
+
+    public void removeDevice(long deviceId) {
+        for (AttributeAlias attributeAlias : getAttributeAliases(deviceId)) {
+            aliasesById.remove(attributeAlias.getId());
+        }
+        deviceAliases.remove(deviceId);
+    }
+
+    public void addAttributeAlias(AttributeAlias attributeAlias) throws SQLException {
+        dataManager.addAttributeAlias(attributeAlias);
+        aliasesById.put(attributeAlias.getId(), attributeAlias);
+        getAttributeAliases(attributeAlias.getDeviceId()).add(attributeAlias);
+    }
+
+    public void updateAttributeAlias(AttributeAlias attributeAlias) throws SQLException {
+        dataManager.updateAttributeAlias(attributeAlias);
+        AttributeAlias cachedAlias = aliasesById.get(attributeAlias.getId());
+        if (cachedAlias.getDeviceId() != attributeAlias.getDeviceId()) {
+            getAttributeAliases(cachedAlias.getDeviceId()).remove(cachedAlias);
+            cachedAlias.setDeviceId(attributeAlias.getDeviceId());
+            getAttributeAliases(cachedAlias.getDeviceId()).add(cachedAlias);
+        }
+        cachedAlias.setAttribute(attributeAlias.getAttribute());
+        cachedAlias.setAlias(attributeAlias.getAlias());
+    }
+
+    public void removeArrtibuteAlias(long attributeAliasId) throws SQLException {
+        dataManager.removeAttributeAlias(attributeAliasId);
+        AttributeAlias cachedAlias = aliasesById.get(attributeAliasId);
+        getAttributeAliases(cachedAlias.getDeviceId()).remove(cachedAlias);
+        aliasesById.remove(attributeAliasId);
+    }
+
+    public AttributeAlias getAttributeAlias(long deviceId, String attribute) {
+        for (AttributeAlias alias : getAttributeAliases(deviceId)) {
+            if (alias.getAttribute().equals(attribute)) {
+                return alias;
+            }
+        }
+        return null;
+    }
+
+    public Collection<AttributeAlias> getAllAttributeAliases(long userId) {
+        Collection<AttributeAlias> userDevicesAliases = new ArrayList<>();
+        for (long deviceId : Context.getPermissionsManager().getDevicePermissions(userId)) {
+            userDevicesAliases.addAll(getAttributeAliases(deviceId));
+        }
+        return userDevicesAliases;
+    }
+
+    public AttributeAlias getAttributeAlias(long id) {
+        return aliasesById.get(id);
+    }
+
+}
diff --git a/src/org/traccar/database/DataManager.java b/src/org/traccar/database/DataManager.java
index 78f1b4109..02adb0455 100644
--- a/src/org/traccar/database/DataManager.java
+++ b/src/org/traccar/database/DataManager.java
@@ -37,6 +37,7 @@ import liquibase.resource.ResourceAccessor;
 
 import org.traccar.Config;
 import org.traccar.helper.Log;
+import org.traccar.model.AttributeAlias;
 import org.traccar.model.Device;
 import org.traccar.model.DevicePermission;
 import org.traccar.model.Event;
@@ -305,7 +306,7 @@ public class DataManager {
     }
 
     public void clearPositionsHistory() throws SQLException {
-        int historyDays = config.getInteger("database.positionsHistoryDays");
+        long historyDays = config.getInteger("database.positionsHistoryDays");
         if (historyDays != 0) {
             QueryBuilder.create(dataSource, getQuery("database.deletePositions"))
                     .setDate("serverTime", new Date(System.currentTimeMillis() - historyDays * 24 * 3600 * 1000))
@@ -460,4 +461,27 @@ public class DataManager {
                 .setLong("id", notification.getId())
                 .executeUpdate();
     }
+
+    public Collection<AttributeAlias> getAttributeAliases() throws SQLException {
+        return QueryBuilder.create(dataSource, getQuery("database.selectAttributeAliases"))
+                .executeQuery(AttributeAlias.class);
+    }
+
+    public void addAttributeAlias(AttributeAlias attributeAlias) throws SQLException {
+        attributeAlias.setId(QueryBuilder.create(dataSource, getQuery("database.insertAttributeAlias"), true)
+                .setObject(attributeAlias)
+                .executeUpdate());
+    }
+
+    public void updateAttributeAlias(AttributeAlias attributeAlias) throws SQLException {
+        QueryBuilder.create(dataSource, getQuery("database.updateAttributeAlias"))
+                .setObject(attributeAlias)
+                .executeUpdate();
+    }
+
+    public void removeAttributeAlias(long attributeAliasId) throws SQLException {
+        QueryBuilder.create(dataSource, getQuery("database.deleteAttributeAlias"))
+                .setLong("id", attributeAliasId)
+                .executeUpdate();
+    }
 }
diff --git a/src/org/traccar/database/DeviceManager.java b/src/org/traccar/database/DeviceManager.java
index 3476139f2..f32c7edd2 100644
--- a/src/org/traccar/database/DeviceManager.java
+++ b/src/org/traccar/database/DeviceManager.java
@@ -194,7 +194,7 @@ public class DeviceManager implements IdentityManager {
 
     public boolean isLatestPosition(Position position) {
         Position lastPosition = getLastPosition(position.getDeviceId());
-        return lastPosition == null || position.getFixTime().compareTo(lastPosition.getFixTime()) > 0;
+        return lastPosition == null || position.getFixTime().compareTo(lastPosition.getFixTime()) >= 0;
     }
 
     public void updateLatestPosition(Position position) throws SQLException {
@@ -316,7 +316,87 @@ public class DeviceManager implements IdentityManager {
         groupsById.remove(groupId);
     }
 
-    public String lookupAttribute(long deviceId, String attributeName) {
+    public boolean lookupServerBoolean(long deviceId, String attributeName, boolean defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, true);
+        if (result != null) {
+            return Boolean.parseBoolean(result);
+        }
+        return defaultValue;
+    }
+
+    public String lookupServerString(long deviceId, String attributeName, String defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, true);
+        if (result != null) {
+            return result;
+        }
+        return defaultValue;
+    }
+
+    public int lookupServerInteger(long deviceId, String attributeName, int defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, true);
+        if (result != null) {
+            return Integer.parseInt(result);
+        }
+        return defaultValue;
+    }
+
+    public long lookupServerLong(long deviceId, String attributeName, long defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, true);
+        if (result != null) {
+            return Long.parseLong(result);
+        }
+        return defaultValue;
+    }
+
+    public double lookupServerDouble(long deviceId, String attributeName, double defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, true);
+        if (result != null) {
+            return Double.parseDouble(result);
+        }
+        return defaultValue;
+    }
+
+    public boolean lookupConfigBoolean(long deviceId, String attributeName, boolean defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, false);
+        if (result != null) {
+            return Boolean.parseBoolean(result);
+        }
+        return defaultValue;
+    }
+
+    public String lookupConfigString(long deviceId, String attributeName, String defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, false);
+        if (result != null) {
+            return result;
+        }
+        return defaultValue;
+    }
+
+    public int lookupConfigInteger(long deviceId, String attributeName, int defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, false);
+        if (result != null) {
+            return Integer.parseInt(result);
+        }
+        return defaultValue;
+    }
+
+    public long lookupConfigLong(long deviceId, String attributeName, long defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, false);
+        if (result != null) {
+            return Long.parseLong(result);
+        }
+        return defaultValue;
+    }
+
+    public double lookupConfigDouble(long deviceId, String attributeName, double defaultValue) {
+        String result = lookupAttribute(deviceId, attributeName, false);
+        if (result != null) {
+            return Double.parseDouble(result);
+        }
+        return defaultValue;
+    }
+
+    private String lookupAttribute(long deviceId, String attributeName, boolean lookupServer) {
         String result = null;
         Device device = getDeviceById(deviceId);
         if (device != null) {
@@ -338,8 +418,12 @@ public class DeviceManager implements IdentityManager {
                 }
             }
             if (result == null) {
-                Server server = Context.getPermissionsManager().getServer();
-                result = (String) server.getAttributes().get(attributeName);
+                if (lookupServer) {
+                    Server server = Context.getPermissionsManager().getServer();
+                    result = (String) server.getAttributes().get(attributeName);
+                } else {
+                    result = Context.getConfig().getString(attributeName);
+                }
             }
         }
         return result;