add: graphs et rushs

3 files changed, 86 insertions, 0 deletions

diff --git a/graphs/java/travel/src/main/java/fr/epita/assistants/travel/Country.java b/graphs/java/travel/src/main/java/fr/epita/assistants/travel/Country.java
new file mode 100644
index 0000000..e616e64
--- /dev/null
+++ b/graphs/java/travel/src/main/java/fr/epita/assistants/travel/Country.java
@@ -0,0 +1,44 @@
+package fr.epita.assistants.travel;
+
+import com.opencsv.CSVReader;
+
+import java.io.FileReader;
+import java.time.ZoneId;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+public class Country {
+    String countryName;
+    public Map<String, Integer> travelTimes;
+    ZoneId countryZone;
+    String filename;
+
+    public Country(String countryName, String countryZone, String inputFilePath) {
+        this.countryName = countryName;
+        this.countryZone = ZoneId.of(countryZone);
+        this.filename = inputFilePath;
+        this.travelTimes = initTravelTimes(inputFilePath);
+    }
+
+    public Map<String, Integer> initTravelTimes(String inputFilePath) {
+        Map<String, Integer> res = new HashMap<>();
+        try {
+            CSVReader c = new CSVReader(new FileReader(inputFilePath));
+            List<String[]> lines = c.readAll();
+            lines.removeFirst();
+            for (String[] line : lines) {
+                if (Objects.equals(line[0], this.countryName)) {
+                    res.put(line[1], Integer.parseInt(line[2]));
+                }
+                else if (Objects.equals(line[1], this.countryName)) {
+                    res.put(line[0], Integer.parseInt(line[2]));
+                }
+            }
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        return res;
+    }
+}
diff --git a/graphs/java/travel/src/main/java/fr/epita/assistants/travel/Travel.java b/graphs/java/travel/src/main/java/fr/epita/assistants/travel/Travel.java
new file mode 100644
index 0000000..9302e18
--- /dev/null
+++ b/graphs/java/travel/src/main/java/fr/epita/assistants/travel/Travel.java
@@ -0,0 +1,13 @@
+package fr.epita.assistants.travel;
+
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class Travel {
+    public static void travelTo(Country source, Country destination) {
+        ZonedDateTime t1 = ZonedDateTime.now(source.countryZone);
+        ZonedDateTime t2 = ZonedDateTime.now(destination.countryZone).plusHours(source.travelTimes.get(destination.countryName));
+        System.out.println("Boarding in " + source.countryName + ", local date and time is: " + t1.format(DateTimeFormatter.RFC_1123_DATE_TIME));
+        System.out.println("Landing in " + destination.countryName + ", local date and time on arrival will be: " + t2.format(DateTimeFormatter.RFC_1123_DATE_TIME));
+    }
+}
diff --git a/graphs/java/travel/src/main/resources/travel_times.csv b/graphs/java/travel/src/main/resources/travel_times.csv
new file mode 100644
index 0000000..a6b720b
--- /dev/null
+++ b/graphs/java/travel/src/main/resources/travel_times.csv
@@ -0,0 +1,29 @@
+source,destination,travel_time
+France,Italy,1
+France,England,2
+France,Vietnam,12
+France,Chicago,9
+France,Brazil,12
+France,Egypt,4
+France,Australia,24
+Italy,England,3
+Italy,Vietnam,11
+Italy,Chicago,9
+Italy,Brazil,12
+Italy,Egypt,3
+Italy,Australia,17
+England,Vietnam,12
+England,Chicago,11
+England,Brazil,12
+England,Egypt,5
+England,Australia,21
+Vietnam,Chicago,21
+Vietnam,Brazil,21
+Vietnam,Egypt,17
+Vietnam,Australia,6
+Chicago,Brazil,13
+Chicago,Egypt,13
+Chicago,Australia,21
+Brazil,Egypt,17
+Brazil,Australia,21
+Egypt,Australia,19
\ No newline at end of file