FDITeam / NMEA-extractor

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Commit 705a274be09572666e36e27aca402b0ba55f2a2c

Authored by Aymeric Cretin
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Exists in master

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.gitignore View file @ 705a274
File was created 1 .idea
2 target
3 workspace
pom.xml View file @ 705a274
File was created 1 <?xml version="1.0" encoding="UTF-8"?>
2 <project xmlns="http://maven.apache.org/POM/4.0.0"
3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
5 <modelVersion>4.0.0</modelVersion>
6
7 <groupId>com.fdit</groupId>
8 <artifactId>nmea-extractor</artifactId>
9 <version>1.0-SNAPSHOT</version>
10 <build>
11 <plugins>
12 <plugin>
13 <groupId>org.apache.maven.plugins</groupId>
14 <artifactId>maven-compiler-plugin</artifactId>
15 <configuration>
16 <source>8</source>
17 <target>8</target>
18 </configuration>
19 </plugin>
20 </plugins>
21 </build>
22
23 <dependencies>
24 <dependency>
25 <groupId>com.google.guava</groupId>
26 <artifactId>guava</artifactId>
27 <version>21.0</version>
28 </dependency>
29 <dependency>
30 <groupId>dk.dma.ais.lib</groupId>
31 <artifactId>ais-lib-messages</artifactId>
32 <version>2.4-SNAPSHOT</version>
33 </dependency>
34 <dependency>
35 <groupId>dk.dma.ais.lib</groupId>
36 <artifactId>ais-lib-communication</artifactId>
37 <version>2.4-SNAPSHOT</version>
38 </dependency>
39 <dependency>
40 <groupId>dk.dma.commons</groupId>
41 <artifactId>dma-commons-util</artifactId>
42 <version>0.5-SNAPSHOT</version>
43 </dependency>
44 <dependency>
45 <groupId>dk.dma.enav</groupId>
46 <artifactId>enav-model</artifactId>
47 <version>0.6-SNAPSHOT</version>
48 </dependency>
src/main/java/fr/femto/extractor/track/Main.java View file @ 705a274
File was created 1 package fr.femto.extractor.track;
2
3 import dk.dma.ais.message.AisMessage;
4 import dk.dma.ais.sentence.Vdm;
5
6 import java.io.*;
7 import java.text.SimpleDateFormat;
8 import java.util.List;
9
10 import static com.google.common.collect.Lists.newArrayList;
11 import static java.lang.Integer.parseInt;
12 import static java.lang.Long.parseLong;
13 import static java.lang.System.nanoTime;
14 import static java.time.Instant.now;
15 import static java.util.Arrays.asList;
16 import static java.util.Date.from;
17
18 public class Main {
19
20 private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("dd-MM_hh-mm-ss");
21
22 public static void main(String[] args) throws Exception {
23 final long startTime = nanoTime();
24 if (args.length == 2 && args[0].compareToIgnoreCase("-mm") == 0) {
25 final File input = new File(args[1]);
26 printMinMaxTimestamps(input);
27 }
28 if (args.length == 3) {
29 if (args[0].compareToIgnoreCase("-ev") == 0) {
30 final File input = new File(args[1]);
31 final List<Integer> userIDs = newArrayList();
32 asList(args[2].split(",")).forEach(id -> userIDs.add(parseInt(id)));
33 extractVessels(
34 input,
35 new File(input.getParentFile(), getDateStr() + "_" + input.getName()),
36 userIDs);
37 }
38 if (args[0].compareToIgnoreCase("-fp") == 0) {
39 final File input = new File(args[1]);
40 filterOutPattern(
41 input,
42 new File(input.getParentFile(), getDateStr() + "_" + input.getName()),
43 args[2]);
44 }
45 if (args[0].compareToIgnoreCase("-ep") == 0) {
46 final File input = new File(args[1]);
47 extractPattern(
48 input,
49 new File(input.getParentFile(), getDateStr() + "_" + input.getName()),
50 args[2]);
51 }
52 }
53 if (args.length == 4 && args[0].compareToIgnoreCase("-tw") == 0) {
54 final File input = new File(args[1]);
55 final long lowerTimestamp = parseLong(args[2]);
56 extractTimeWindow(
57 input,
58 new File(input.getParentFile(), getDateStr() + "_" + input.getName()),
59 lowerTimestamp,
60 lowerTimestamp + parseLong(args[3]) * 3600);
61 }
62 final long endTime = nanoTime();
63 System.out.println("Execution time in milliseconds: " + (endTime - startTime) / 1000000);
64 }
65
66 private static String getDateStr() {
67 return DATE_FORMAT.format(from(now()));
68 }
69
70 private static void printMinMaxTimestamps(final File input) throws IOException {
71 try (final FileReader fileReader = new FileReader(input);
72 final BufferedReader bufferedReader = new BufferedReader(fileReader)) {
73 String currentMessage = bufferedReader.readLine();
74 long maxTimestamp = Long.MIN_VALUE;
75 long minTimestamp = Long.MAX_VALUE;
76 while (currentMessage != null) {
77 if (!currentMessage.isEmpty()) {
78 try {
79 final long timestamp = parseLong(currentMessage.substring(3).split(",")[0]);
80 if (timestamp < minTimestamp) {
81 minTimestamp = timestamp;
82 }
83 if (timestamp > maxTimestamp) {
84 maxTimestamp = timestamp;
85 }
86 } catch (final Exception ignored) {
87 }
88 }
89 currentMessage = bufferedReader.readLine();
90 }
91 System.out.println("Min timestamp: " + minTimestamp);
92 System.out.println("Max timestamp: " + maxTimestamp);
93 }
94 }
95
96 private static void extractVessels(final File input,
97 final File output,
98 final List<Integer> MMSIs) throws IOException {
99 try (final FileReader fileReader = new FileReader(input);
100 final BufferedReader bufferedReader = new BufferedReader(fileReader);
101 final FileWriter fileWriter = new FileWriter(output);
102 final BufferedWriter bufferedWriter = new BufferedWriter(fileWriter)) {
103 String currentMessage = bufferedReader.readLine();
104 while (currentMessage != null) {
105 if (!currentMessage.isEmpty()) {
106 final Vdm vdm = new Vdm();
107 try {
108 vdm.parse(currentMessage);
109 if (MMSIs.contains(AisMessage.getInstance(vdm).getUserId())) {
110 bufferedWriter.write(currentMessage + "\n");
111 }
112 } catch (final Exception ignored) {
113
114 }
115 }
116 currentMessage = bufferedReader.readLine();
117 }
118 }
119 }
120
121 private static void filterOutPattern(final File input,
122 final File output,
123 final String pattern) throws IOException {
124 try (final FileReader fileReader = new FileReader(input);
125 final BufferedReader bufferedReader = new BufferedReader(fileReader);
126 final FileWriter fileWriter = new FileWriter(output);
127 final BufferedWriter bufferedWriter = new BufferedWriter(fileWriter)) {
128 String currentMessage = bufferedReader.readLine();
129 while (currentMessage != null) {
130 if (!currentMessage.isEmpty()) {
131 if (!currentMessage.contains(pattern)) {
132 bufferedWriter.write(currentMessage + "\n");
133 }
134 }
135 currentMessage = bufferedReader.readLine();
136 }
137 }
138 }
139
140 private static void extractPattern(final File input,
141 final File output,
142 final String pattern) throws IOException {
143 try (final FileReader fileReader = new FileReader(input);
144 final BufferedReader bufferedReader = new BufferedReader(fileReader);
145 final FileWriter fileWriter = new FileWriter(output);
146 final BufferedWriter bufferedWriter = new BufferedWriter(fileWriter)) {
147 String currentMessage = bufferedReader.readLine();
148 while (currentMessage != null) {
149 if (!currentMessage.isEmpty()) {
150 if (currentMessage.contains(pattern)) {
151 bufferedWriter.write(currentMessage + "\n");
152 }
153 }
154 currentMessage = bufferedReader.readLine();
155 }
156 }
157 }
158
159 private static void extractTimeWindow(final File input,
160 final File output,
161 final long lowerTimestamp,
162 final long upperTimestamp) throws IOException {
163 try (final FileReader fileReader = new FileReader(input);
164 final BufferedReader bufferedReader = new BufferedReader(fileReader);
165 final FileWriter fileWriter = new FileWriter(output);
166 final BufferedWriter bufferedWriter = new BufferedWriter(fileWriter)) {