Support for Flight Delay Prediction (#48)

* initial commit for flight delay prediction

* fix build errors

* fix syntax error readme

* add tests

* update test

* fix typo

Author: tsolakoua

README.md

@@ -325,6 +325,18 @@ PointOfInterest[] pointsOfInterest = amadeus.referenceData.locations.pointsOfInt
     .and("west", "2.160873")
     .and("south", "41.394582")
     .and("east", "2.177181"));
+
+Delay[] flightDelay = amadeus.travel.predictions.flightDelay.get(Params
+    .with("originLocationCode", "NCE")
+    .and("destinationLocationCode", "IST")
+    .and("departureDate", "2020-08-01")
+    .and("departureTime", "18:20:00")
+    .and("arrivalDate", "2020-08-01")
+    .and("arrivalTime", "22:15:00")
+    .and("aircraftCode", "321")
+    .and("carrierCode", "TK")
+    .and("flightNumber", "1816")
+    .and("duration", "PT31H10M"));
 ```
 
 ## Development & Contributing

src/main/java/com/amadeus/Travel.java

@@ -1,6 +1,7 @@
 package com.amadeus;
 
 import com.amadeus.travel.analytics.Analytics;
+import com.amadeus.travel.predictions.Predictions;
 
 /**
  * <p>
@@ -26,12 +27,20 @@ public class Travel {
    * </p>
    */
   public Analytics analytics;
+  /**
+   * <p>
+   *   A namespaced client for the
+   *   <code>/v1/travel/predictions</code> endpoints.
+   * </p>
+   */
+  public Predictions predictions;
 
   /**
    * Constructor.
    * @hide
    */
   public Travel(Amadeus client) {
     this.analytics = new Analytics(client);
+    this.predictions = new Predictions(client);
   }
 }

src/main/java/com/amadeus/resources/Delay.java

@@ -0,0 +1,19 @@
+package com.amadeus.resources;
+
+import lombok.Getter;
+import lombok.ToString;
+
+/**
+ * A Delay object as returned by the FlightDelay API.
+ * @see com.amadeus.travel.predictions.FlightDelay#get()
+ */
+@ToString
+public class Delay extends Resource {
+  protected Delay() {}
+
+  private @Getter String id;
+  private @Getter String probability;
+  private @Getter String result;
+  private @Getter String subType;
+  private @Getter String type;
+}

src/main/java/com/amadeus/travel/Predictions.java

@@ -0,0 +1,38 @@
+package com.amadeus.travel.predictions;
+
+import com.amadeus.Amadeus;
+
+/**
+ * <p>
+ *   A namespaced client for the
+ *   <code>/v1/travel/predictions</code> endpoints.
+ * </p>
+ *
+ * <p>
+ *   Access via the Amadeus client object.
+ * </p>
+ *
+ * <pre>
+ * Amadeus amadeus = Amadeus.builder("clientId", "secret").build();
+ * amadeus.travel.predictions;</pre>
+ *
+ * @hide
+ */
+public class Predictions {
+  /**
+   * <p>
+   *   A namespaced client for the
+   *   <code>/v1/travel/predictions/flight-delay</code> endpoints.
+   * </p>
+   */
+  public FlightDelay flightDelay;
+
+
+  /**
+   * Constructor.
+   * @hide
+   */
+  public Predictions(Amadeus client) {
+    this.flightDelay = new FlightDelay(client);
+  }
+}

src/main/java/com/amadeus/travel/predictions/FlightDelay.java

@@ -0,0 +1,69 @@
+package com.amadeus.travel.predictions;
+
+import com.amadeus.Amadeus;
+import com.amadeus.Params;
+import com.amadeus.Response;
+import com.amadeus.exceptions.ResponseException;
+import com.amadeus.resources.Delay;
+import com.amadeus.resources.Resource;
+
+/**
+ * <p>
+ *   A namespaced client for the
+ *   <code>/v1/travel/predictions/flight-delay</code> endpoints.
+ * </p>
+ *
+ * <p>
+ *   Access via the Amadeus client object.
+ * </p>
+ *
+ * <pre>
+ * Amadeus amadeus = Amadeus.builder("clientId", "secret").build();
+ * amadeus.travel.predictions.flightDelay;</pre>
+ */
+public class FlightDelay {
+  private Amadeus client;
+
+  /**
+   * Constructor.
+   * @hide
+   */
+  public FlightDelay(Amadeus client) {
+    this.client = client;
+  }
+
+  /**
+   * <p>
+   *   Predicts delay of a given flight.
+   * </p>
+   *
+   * <pre>
+   * Delay[] flightDelay = amadeus.travel.predictions.flightDelay.get(Params
+   *     .with("originLocationCode", "NCE")
+   *     .and("destinationLocationCode", "IST")
+   *     .and("departureDate", "2020-08-01")
+   *     .and("departureTime", "18:20:00"))
+   *     .and("arrivalDate", "2020-08-01")
+   *     .and("arrivalTime", "22:15:00")
+   *     .and("aircraftCode", "321"))
+   *     .and("carrierCode", "TK")
+   *     .and("flightNumber", "1816")
+   *     .and("duration", "PT31H10M"));
+   * </pre>
+   * @param params the parameters to send to the API
+   * @return an API response object
+   * @throws ResponseException when an exception occurs
+   */
+  public Delay[] get(Params params) throws ResponseException {
+    Response response = client.get("/v1/travel/predictions/flight-delay", params);
+    return (Delay[]) Resource.fromArray(response, Delay[].class);
+  }
+
+  /**
+   * Convenience method for calling <code>get</code> without any parameters.
+   * @see FlightDelay#get()
+   */
+  public Delay[] get() throws ResponseException {
+    return get(null);
+  }
+}

src/test/java/com/amadeus/NamespaceTest.java

@@ -8,6 +8,7 @@
 import com.amadeus.referenceData.locations.Airports;
 import com.amadeus.referenceData.locations.PointsOfInterest;
 import com.amadeus.referenceData.urls.CheckinLinks;
+import com.amadeus.resources.Delay;
 import com.amadeus.shopping.FlightDates;
 import com.amadeus.shopping.FlightDestinations;
 import com.amadeus.shopping.FlightOffers;
@@ -21,6 +22,7 @@
 import com.amadeus.travel.analytics.airTraffic.Searched;
 import com.amadeus.travel.analytics.airTraffic.SearchedByDestination;
 import com.amadeus.travel.analytics.airTraffic.Traveled;
+import com.amadeus.travel.predictions.FlightDelay;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;
 import junit.framework.TestCase;
@@ -50,6 +52,7 @@ public void testAllNamespacesExist() {
     TestCase.assertNotNull(client.travel.analytics.airTraffic.booked);
     TestCase.assertNotNull(client.travel.analytics.airTraffic.searched);
     TestCase.assertNotNull(client.travel.analytics.airTraffic.searchedByDestination);
+    TestCase.assertNotNull(client.travel.predictions.flightDelay);
     TestCase.assertNotNull(client.shopping.flightDates);
     TestCase.assertNotNull(client.shopping.flightDestinations);
     TestCase.assertNotNull(client.shopping.flightOffers);
@@ -277,6 +280,15 @@ public void testGetMethods() throws ResponseException {
             .thenReturn(multiResponse);
     HotelSentiments hotelSentiments = new HotelSentiments(client);
     TestCase.assertNotNull(hotelSentiments.get(params));
+
+    // Test flight delay predictions
+    Mockito.when(client.get("/v1/travel/predictions/flight-delay", null))
+        .thenReturn(multiResponse);
+    Mockito.when(client.get("/v1/travel/predictions/flight-delay", params))
+        .thenReturn(multiResponse);
+    FlightDelay flightDelay = new FlightDelay(client);
+    TestCase.assertNotNull(flightDelay.get());
+    TestCase.assertNotNull(flightDelay.get(params));
   }
 
   @Test