1 files changed, 65 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java b/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java
new file mode 100644
index 000000000..abb6ec9d4
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ *
+ * 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.protocol;
+
+import org.traccar.Context;
+import org.traccar.StringProtocolEncoder;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Command;
+
+import java.util.Map;
+
+public class MeitrackProtocolEncoder extends StringProtocolEncoder {
+
+    private Object formatCommand(Command command, char dataId, String content) {
+        String uniqueId = getUniqueId(command.getDeviceId());
+        int length = 1 + uniqueId.length() + 1 + content.length() + 5;
+        String result = String.format("@@%c%02d,%s,%s*", dataId, length, uniqueId, content);
+        result += Checksum.sum(result) + "\r\n";
+        return result;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        Map<String, Object> attributes = command.getAttributes();
+
+        boolean alternative = Context.getIdentityManager().lookupAttributeBoolean(
+                command.getDeviceId(), "meitrack.alternative", false, true);
+
+        switch (command.getType()) {
+            case Command.TYPE_POSITION_SINGLE:
+                return formatCommand(command, 'Q', "A10");
+            case Command.TYPE_ENGINE_STOP:
+                return formatCommand(command, 'M', "C01,0,12222");
+            case Command.TYPE_ENGINE_RESUME:
+                return formatCommand(command, 'M', "C01,0,02222");
+            case Command.TYPE_ALARM_ARM:
+                return formatCommand(command, 'M', alternative ? "B21,1" : "C01,0,22122");
+            case Command.TYPE_ALARM_DISARM:
+                return formatCommand(command, 'M', alternative ? "B21,0" : "C01,0,22022");
+            case Command.TYPE_REQUEST_PHOTO:
+                int index = command.getInteger(Command.KEY_INDEX);
+                return formatCommand(command, 'D', "D03," + (index > 0 ? index : 1) + ",camera_picture.jpg");
+            case Command.TYPE_SEND_SMS:
+                return formatCommand(command, 'f', "C02,0,"
+                        + attributes.get(Command.KEY_PHONE) + "," + attributes.get(Command.KEY_MESSAGE));
+            default:
+                return null;
+        }
+    }
+
+}