allow getMessages with limit directly from Query instance

CHANGELOG.md

@@ -6,7 +6,7 @@ All notable changes to this project will be documented in this file.
 * Updated dependencies
 
 ### Fixed
-* Querying trips with limit directly from `Query` instance (#18)
+* Querying trips and messages with limit directly from `Query` instance (#18)
 
 ### Misc
 * Tested with JDK 19

src/main/java/de/stklcode/pubtrans/ura/UraClient.java

@@ -395,6 +395,20 @@ public class UraClient implements Serializable {
         return getMessages(query, null);
     }
 
+
+    /**
+     * Get list of messages with limit.
+     * If forStops() has been called, those will be used as filter.
+     *
+     * @param limit Maximum number of results.
+     * @return List of trips.
+     * @throws UraClientException Error with API communication.
+     * @since 2.0.4
+     */
+    public List<Message> getMessages(final Integer limit) throws UraClientException {
+        return getMessages(new Query(), limit);
+    }
+
     /**
      * Get list of messages for given stopIDs with result limit.
      *
@@ -690,5 +704,17 @@ public class UraClient implements Serializable {
         public List<Message> getMessages() throws UraClientException {
             return UraClient.this.getMessages(this);
         }
+
+        /**
+         * Get trips for set filters.
+         *
+         * @param limit Maximum number of results.
+         * @return List of matching messages.
+         * @throws UraClientException Error with API communication.
+         * @since 2.0.4
+         */
+        public List<Message> getMessages(final Integer limit) throws UraClientException {
+            return UraClient.this.getMessages(this, limit);
+        }
     }
 }

src/test/java/de/stklcode/pubtrans/ura/UraClientTest.java

@@ -349,12 +349,13 @@ public class UraClientTest {
 
     @Test
     public void getMessages() throws UraClientException {
+        UraClient uraClient = new UraClient(wireMock.baseUrl());
+
         // Mock the HTTP call.
         mockHttpToFile(1, "instant_V1_messages.txt");
 
         // Get messages without filter and verify some values.
-        List<Message> messages = new UraClient(wireMock.baseUrl())
+        List<Message> messages = uraClient.getMessages();
-                .getMessages();
         assertThat(messages, hasSize(2));
         assertThat(messages.get(0).getStop().getId(), is("100707"));
         assertThat(messages.get(0).getUuid(), is("016e1231d4e30014_100707"));
@@ -365,6 +366,12 @@ public class UraClientTest {
         assertThat(messages.get(0).getText(), is("Sehr geehrte Fahrgäste, wegen Strassenbauarbeiten kann diese Haltestelle nicht von den Bussen der Linien 17, 44 und N2 angefahren werden."));
         assertThat(messages.get(1).getText(), is("Sehr geehrte Fahrgäste, diese Haltestelle wird vorübergehend von den Linien 47, 147 und N3 nicht angefahren."));
 
+        // With limit.
+        messages = uraClient.getMessages(1);
+        assertThat(messages, hasSize(1));
+        messages = uraClient.getMessages(3);
+        assertThat(messages, hasSize(2));
+
         mockHttpToException();
         UraClientException exception = assertThrows(
                 UraClientException.class,
@@ -377,19 +384,25 @@ public class UraClientTest {
 
     @Test
     public void getMessagesForStop() throws UraClientException {
+        UraClient uraClient = new UraClient(wireMock.baseUrl(), "/interfaces/ura/instant_V2", "/interfaces/ura/stream");
+
         // Mock the HTTP call.
         mockHttpToFile(2, "instant_V2_messages_stop.txt");
 
         // Get trips for stop ID 100707 (Berensberger Str.) and verify some values.
-        List<Message> messages = new UraClient(wireMock.baseUrl(), "/interfaces/ura/instant_V2", "/interfaces/ura/stream")
+        List<Message> messages = uraClient.forStops("100707").getMessages();
-                .forStops("100707")
-                .getMessages();
         assertThat(messages, hasSize(1));
         assertThat(messages.stream().filter(t -> !t.getStop().getId().equals("100707")).findAny(), is(Optional.empty()));
         assertThat(messages.get(0).getUuid(), is("016e1231d4e30014_100707"));
         assertThat(messages.get(0).getType(), is(0));
         assertThat(messages.get(0).getPriority(), is(3));
         assertThat(messages.get(0).getText(), is("Sehr geehrte Fahrgäste, wegen Strassenbauarbeiten kann diese Haltestelle nicht von den Bussen der Linien 17, 44 und N2 angefahren werden."));
+
+        // With limit.
+        messages = uraClient.forStops("100707").getMessages(0);
+        assertThat(messages, hasSize(0));
+        messages = uraClient.forStops("100707").getMessages(2);
+        assertThat(messages, hasSize(1));
     }
 
     @Test