From e00aa4273108c75d4bce19503800ec53cad39af3 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Thu, 4 Jan 2018 07:00:59 +1300 Subject: Implement Globalstar SPOT protocol --- src/org/traccar/protocol/SpotProtocol.java | 47 ++++++++++++ src/org/traccar/protocol/SpotProtocolDecoder.java | 93 +++++++++++++++++++++++ 2 files changed, 140 insertions(+) create mode 100644 src/org/traccar/protocol/SpotProtocol.java create mode 100644 src/org/traccar/protocol/SpotProtocolDecoder.java (limited to 'src') diff --git a/src/org/traccar/protocol/SpotProtocol.java b/src/org/traccar/protocol/SpotProtocol.java new file mode 100644 index 000000000..cd5ab90f6 --- /dev/null +++ b/src/org/traccar/protocol/SpotProtocol.java @@ -0,0 +1,47 @@ +/* + * Copyright 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.bootstrap.ServerBootstrap; +import org.jboss.netty.channel.ChannelPipeline; +import org.jboss.netty.handler.codec.http.HttpChunkAggregator; +import org.jboss.netty.handler.codec.http.HttpRequestDecoder; +import org.jboss.netty.handler.codec.http.HttpResponseEncoder; +import org.traccar.BaseProtocol; +import org.traccar.TrackerServer; + +import java.util.List; + +public class SpotProtocol extends BaseProtocol { + + public SpotProtocol() { + super("spot"); + } + + @Override + public void initTrackerServers(List serverList) { + serverList.add(new TrackerServer(new ServerBootstrap(), getName()) { + @Override + protected void addSpecificHandlers(ChannelPipeline pipeline) { + pipeline.addLast("httpEncoder", new HttpResponseEncoder()); + pipeline.addLast("httpDecoder", new HttpRequestDecoder()); + pipeline.addLast("httpAggregator", new HttpChunkAggregator(65535)); + pipeline.addLast("objectDecoder", new SpotProtocolDecoder(SpotProtocol.this)); + } + }); + } + +} diff --git a/src/org/traccar/protocol/SpotProtocolDecoder.java b/src/org/traccar/protocol/SpotProtocolDecoder.java new file mode 100644 index 000000000..ed6a03c5f --- /dev/null +++ b/src/org/traccar/protocol/SpotProtocolDecoder.java @@ -0,0 +1,93 @@ +/* + * Copyright 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 com.fasterxml.jackson.databind.util.ByteBufferBackedInputStream; +import org.jboss.netty.channel.Channel; +import org.jboss.netty.handler.codec.http.HttpRequest; +import org.jboss.netty.handler.codec.http.HttpResponseStatus; +import org.traccar.BaseHttpProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.helper.DateUtil; +import org.traccar.model.Position; +import org.w3c.dom.Document; +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; + +import javax.xml.parsers.DocumentBuilder; +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.parsers.ParserConfigurationException; +import javax.xml.xpath.XPath; +import javax.xml.xpath.XPathConstants; +import javax.xml.xpath.XPathExpression; +import javax.xml.xpath.XPathExpressionException; +import javax.xml.xpath.XPathFactory; +import java.net.SocketAddress; +import java.util.LinkedList; +import java.util.List; + +public class SpotProtocolDecoder extends BaseHttpProtocolDecoder { + + private DocumentBuilder documentBuilder; + private XPath xPath; + private XPathExpression messageExpression; + + public SpotProtocolDecoder(SpotProtocol protocol) { + super(protocol); + try { + documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); + xPath = XPathFactory.newInstance().newXPath(); + messageExpression = xPath.compile("//messageList/message"); + } catch (ParserConfigurationException | XPathExpressionException e) { + throw new RuntimeException(e); + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + HttpRequest request = (HttpRequest) msg; + + Document document = documentBuilder.parse(new ByteBufferBackedInputStream(request.getContent().toByteBuffer())); + NodeList nodes = (NodeList) messageExpression.evaluate(document, XPathConstants.NODESET); + + List positions = new LinkedList<>(); + + for (int i = 0; i < nodes.getLength(); i++) { + Node node = nodes.item(i); + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, xPath.evaluate("esnName", node)); + if (deviceSession != null) { + + Position position = new Position(); + position.setProtocol(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.setValid(true); + position.setTime(DateUtil.parseDate(xPath.evaluate("timestamp", node))); + position.setLatitude(Double.parseDouble(xPath.evaluate("latitude", node))); + position.setLongitude(Double.parseDouble(xPath.evaluate("longitude", node))); + + positions.add(position); + + } + } + + sendResponse(channel, HttpResponseStatus.OK); + return positions; + } + +} -- cgit v1.2.3