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authorJan-Piet Mens <jpmens@gmail.com>2017-06-13 12:30:49 +0200
committerJan-Piet Mens <jpmens@gmail.com>2017-06-14 07:57:40 +0200
commit7f62f1671b38b9ffbeff66aa4ee79e0f875b1c66 (patch)
treeb9e3bbc21546a8441c7d0162d775126e9102ccad /src/org/traccar/protocol/OwnTracksProtocolDecoder.java
parentb84d627b57181907c73d2c4ebb46ed011be8cfab (diff)
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New protocol decoder for OwnTracks
- removed comments and try/catch as per request - add existence checks
Diffstat (limited to 'src/org/traccar/protocol/OwnTracksProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/OwnTracksProtocolDecoder.java103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/OwnTracksProtocolDecoder.java b/src/org/traccar/protocol/OwnTracksProtocolDecoder.java
new file mode 100644
index 000000000..60f94db96
--- /dev/null
+++ b/src/org/traccar/protocol/OwnTracksProtocolDecoder.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2017 Jan-Piet Mens (jpmens@gmail.com)
+ * Copyright 2013 - 2017 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.jboss.netty.channel.Channel;
+import org.jboss.netty.handler.codec.http.DefaultHttpResponse;
+import org.jboss.netty.handler.codec.http.HttpHeaders;
+import org.jboss.netty.handler.codec.http.HttpRequest;
+import org.jboss.netty.handler.codec.http.HttpResponse;
+import org.jboss.netty.handler.codec.http.HttpResponseStatus;
+import org.jboss.netty.handler.codec.http.HttpVersion;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.model.Position;
+import org.traccar.helper.UnitsConverter;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+
+import java.io.StringReader;
+import javax.json.Json;
+import javax.json.JsonObject;
+
+public class OwnTracksProtocolDecoder extends BaseProtocolDecoder {
+
+ public OwnTracksProtocolDecoder(OwnTracksProtocol protocol) {
+ super(protocol);
+ }
+
+ private void sendResponse(Channel channel, HttpResponseStatus status) {
+ if (channel != null) {
+ HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
+ response.headers().add(HttpHeaders.Names.CONTENT_LENGTH, 0);
+ channel.write(response);
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ HttpRequest request = (HttpRequest) msg;
+ JsonObject root = Json.createReader(
+ new StringReader(request.getContent().toString(StandardCharsets.US_ASCII))).readObject();
+
+ Position position = new Position();
+ position.setProtocol(getProtocolName());
+ position.setValid(true);
+
+ position.setLatitude(root.getJsonNumber("lat").doubleValue());
+ position.setLongitude(root.getJsonNumber("lon").doubleValue());
+
+ if (root.containsKey("vel")) {
+ position.setSpeed(UnitsConverter.knotsFromCps(root.getInt("vel")));
+ }
+ if (root.containsKey("alt")) {
+ position.setAltitude(root.getInt("alt"));
+ }
+ if (root.containsKey("cog")) {
+ position.setCourse(root.getInt("cog"));
+ }
+ if (root.containsKey("acc")) {
+ position.setAccuracy(root.getInt("acc"));
+ }
+ if (root.containsKey("t")) {
+ position.set("t", root.getString("t"));
+ }
+ if (root.containsKey("batt")) {
+ position.set(Position.KEY_BATTERY, root.getInt("batt"));
+ }
+
+ long timestamp = root.getJsonNumber("tst").longValue();
+ if (timestamp < Integer.MAX_VALUE) {
+ timestamp *= 1000;
+ }
+ position.setTime(new Date(timestamp));
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, root.getString("tid"));
+ if (deviceSession == null) {
+ sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ sendResponse(channel, HttpResponseStatus.OK);
+ return position;
+ }
+}