aboutsummaryrefslogtreecommitdiff
path: root/src/org/traccar/protocol/AisProtocolDecoder.java
diff options
context:
space:
mode:
authorAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
commit59416923dcb3a756eaf532cc4259f2f6625c0762 (patch)
tree9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/org/traccar/protocol/AisProtocolDecoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
downloadtrackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.gz
trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.bz2
trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.zip
Convert project to gradle
Diffstat (limited to 'src/org/traccar/protocol/AisProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/AisProtocolDecoder.java140
1 files changed, 0 insertions, 140 deletions
diff --git a/src/org/traccar/protocol/AisProtocolDecoder.java b/src/org/traccar/protocol/AisProtocolDecoder.java
deleted file mode 100644
index 8970f3d4a..000000000
--- a/src/org/traccar/protocol/AisProtocolDecoder.java
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright 2016 - 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 io.netty.channel.Channel;
-import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
-import org.traccar.Protocol;
-import org.traccar.helper.BitBuffer;
-import org.traccar.helper.Parser;
-import org.traccar.helper.PatternBuilder;
-import org.traccar.model.Position;
-
-import java.net.SocketAddress;
-import java.nio.charset.StandardCharsets;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.regex.Pattern;
-
-public class AisProtocolDecoder extends BaseProtocolDecoder {
-
- public AisProtocolDecoder(Protocol protocol) {
- super(protocol);
- }
-
- private static final Pattern PATTERN = new PatternBuilder()
- .text("!AIVDM,")
- .number("(d+),") // count
- .number("(d+),") // index
- .number("(d+)?,") // id
- .expression(".,") // radio channel
- .expression("([^,]+),") // payload
- .any()
- .compile();
-
- private Position decodePayload(Channel channel, SocketAddress remoteAddress, BitBuffer buf) {
-
- int type = buf.readUnsigned(6);
- if (type == 1 || type == 2 || type == 3 || type == 18) {
-
- buf.readUnsigned(2);
- int mmsi = buf.readUnsigned(30);
-
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(mmsi));
- if (deviceSession == null) {
- return null;
- }
-
- Position position = new Position(getProtocolName());
- position.setDeviceId(deviceSession.getDeviceId());
-
- position.setTime(new Date());
-
- if (type == 18) {
- buf.readUnsigned(8); // reserved
- } else {
- position.set(Position.KEY_STATUS, buf.readUnsigned(4));
- position.set("turn", buf.readSigned(8));
- }
-
- position.setSpeed(buf.readUnsigned(10) * 0.1);
- position.setValid(buf.readUnsigned(1) != 0);
- position.setLongitude(buf.readSigned(28) * 0.0001 / 60.0);
- position.setLatitude(buf.readSigned(27) * 0.0001 / 60.0);
- position.setCourse(buf.readUnsigned(12) * 0.1);
-
- position.set("heading", buf.readUnsigned(9));
-
- return position;
-
- }
-
- return null;
- }
-
- @Override
- protected Object decode(
- Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
-
- String[] sentences = ((String) msg).split("\\r\\n");
-
- List<Position> positions = new ArrayList<>();
- Map<Integer, BitBuffer> buffers = new HashMap<>();
-
- for (String sentence : sentences) {
- if (!sentence.isEmpty()) {
- Parser parser = new Parser(PATTERN, sentence);
- if (parser.matches()) {
-
- int count = parser.nextInt(0);
- int index = parser.nextInt(0);
- int id = parser.nextInt(0);
-
- Position position = null;
-
- if (count == 1) {
- BitBuffer bits = new BitBuffer();
- bits.writeEncoded(parser.next().getBytes(StandardCharsets.US_ASCII));
- position = decodePayload(channel, remoteAddress, bits);
- } else {
- BitBuffer bits = buffers.get(id);
- if (bits == null) {
- bits = new BitBuffer();
- buffers.put(id, bits);
- }
- bits.writeEncoded(parser.next().getBytes(StandardCharsets.US_ASCII));
- if (count == index) {
- position = decodePayload(channel, remoteAddress, bits);
- buffers.remove(id);
- }
- }
-
- if (position != null) {
- positions.add(position);
- }
-
- }
- }
- }
-
- return positions;
- }
-
-}