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Diffstat (limited to 'src/org/traccar/protocol/MeiligaoProtocolEncoder.java')
-rw-r--r--src/org/traccar/protocol/MeiligaoProtocolEncoder.java114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/MeiligaoProtocolEncoder.java b/src/org/traccar/protocol/MeiligaoProtocolEncoder.java
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+++ b/src/org/traccar/protocol/MeiligaoProtocolEncoder.java
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+/*
+ * Copyright 2015 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.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.Log;
+import org.traccar.model.Command;
+
+import javax.xml.bind.DatatypeConverter;
+import java.nio.charset.Charset;
+import java.util.Map;
+
+public class MeiligaoProtocolEncoder extends BaseProtocolEncoder {
+
+ public static final int MSG_TRACK_ON_DEMAND = 0x4101;
+ public static final int MSG_TRACK_BY_INTERVAL = 0x4102;
+ public static final int MSG_MOVEMENT_ALARM = 0x4106;
+ public static final int MSG_TIME_ZONE = 0x4132;
+ public static final int MSG_REBOOT_GPS = 0x4902;
+
+ private ChannelBuffer encodeContent(long deviceId, int type, ChannelBuffer content) {
+
+ ChannelBuffer buf = ChannelBuffers.dynamicBuffer();
+
+ buf.writeByte('@');
+ buf.writeByte('@');
+
+ buf.writeShort(2 + 2 + 7 + 2 + content.readableBytes() + 2 + 2); // message length
+
+ buf.writeBytes(DatatypeConverter.parseHexBinary((getUniqueId(deviceId) + "FFFFFFFFFFFFFF").substring(0, 14)));
+
+ buf.writeShort(type);
+
+ buf.writeBytes(content);
+
+ buf.writeShort(Checksum.crc16(Checksum.CRC16_CCITT_FALSE, buf.toByteBuffer()));
+
+ buf.writeByte('\r');
+ buf.writeByte('\n');
+
+ return buf;
+ }
+
+ // TODO: remove if not needed
+ private static int radiusToArea(int radius) {
+ if (radius == 0) {
+ return 0x00;
+ } else if (radius <= 30) {
+ return 0x01;
+ } else if (radius <= 50) {
+ return 0x02;
+ } else if (radius <= 100) {
+ return 0x03;
+ } else if (radius <= 200) {
+ return 0x04;
+ } else if (radius <= 300) {
+ return 0x05;
+ } else if (radius <= 500) {
+ return 0x06;
+ } else if (radius <= 1000) {
+ return 0x07;
+ } else if (radius <= 2000) {
+ return 0x08;
+ } else {
+ return 0xff;
+ }
+ }
+
+ @Override
+ protected Object encodeCommand(Command command) {
+
+ ChannelBuffer content = ChannelBuffers.dynamicBuffer();
+ Map<String, Object> attributes = command.getAttributes();
+
+ switch (command.getType()) {
+ case Command.TYPE_POSITION_SINGLE:
+ return encodeContent(command.getDeviceId(), MSG_TRACK_ON_DEMAND, content);
+ case Command.TYPE_POSITION_PERIODIC:
+ content.writeShort(((Number) attributes.get(Command.KEY_FREQUENCY)).intValue() / 10);
+ return encodeContent(command.getDeviceId(), MSG_TRACK_BY_INTERVAL, content);
+ case Command.TYPE_MOVEMENT_ALARM:
+ content.writeShort(((Number) attributes.get(Command.KEY_RADIUS)).intValue());
+ return encodeContent(command.getDeviceId(), MSG_MOVEMENT_ALARM, content);
+ case Command.TYPE_SET_TIMEZONE:
+ int offset = ((Number) attributes.get(Command.KEY_TIMEZONE)).intValue() / 60;
+ content.writeBytes(String.valueOf(offset).getBytes(Charset.defaultCharset()));
+ return encodeContent(command.getDeviceId(), MSG_TIME_ZONE, content);
+ case Command.TYPE_REBOOT_DEVICE:
+ return encodeContent(command.getDeviceId(), MSG_REBOOT_GPS, content);
+ default:
+ Log.warning(new UnsupportedOperationException(command.getType()));
+ break;
+ }
+
+ return null;
+ }
+
+}