Support sticker text (#716)

Author: tawAsh1

line-bot-model/src/main/java/com/linecorp/bot/model/event/message/StickerMessageContent.java

@@ -80,12 +80,28 @@ public enum StickerResourceType {
         POPUP_SOUND,
         /**
          * Custom sticker. You can't retrieve the sticker's custom text with the Messaging API.
+         * @deprecated discontinued. {@link StickerResourceType#CUSTOM } is used instead of
+         * {@link StickerResourceType#NAME_TEXT }.
+         * @see StickerResourceType#CUSTOM
          */
+        @Deprecated
         NAME_TEXT,
         /**
          * Message sticker. You can't retrieve the sticker's custom text with the Messaging API.
+         * @deprecated discontinued. {@link StickerResourceType#MESSAGE } is used instead of
+         * {@link StickerResourceType#PER_STICKER_TEXT }.
+         * @see StickerResourceType#MESSAGE
          */
+        @Deprecated
         PER_STICKER_TEXT,
+        /**
+         * Message sticker.
+         */
+        MESSAGE,
+        /**
+         * Custom sticker. You can't retrieve the sticker's custom text with the Messaging API.
+         */
+        CUSTOM,
         @JsonEnumDefaultValue
         UNKNOWN // For implementation of new sticker resource type in the future!
     }
@@ -101,4 +117,11 @@ public enum StickerResourceType {
      * If the type change in the future, this field will become null.
      */
     List<String> keywords;
+
+    /**
+     * Any text entered by the user.
+     * This property is only included for message stickers.
+     * Max character limit: 100
+     */
+    String text;
 }

line-bot-model/src/test/java/com/linecorp/bot/model/event/CallbackRequestTest.java

@@ -311,6 +311,42 @@ public void testSticker() throws IOException {
         });
     }
 
+    @Test
+    public void testStickerWithText() throws IOException {
+        parse("callback/sticker-with-text.json", callbackRequest -> {
+            assertDestination(callbackRequest);
+            assertThat(callbackRequest.getEvents()).hasSize(1);
+            Event event = callbackRequest.getEvents().get(0);
+            assertThat(event).isInstanceOf(MessageEvent.class);
+            assertThat(event.getSource())
+                    .isInstanceOf(UserSource.class);
+            assertThat(event.getSource().getUserId())
+                    .isEqualTo("u206d25c2ea6bd87c17655609a1c37cb8");
+            assertThat(event.getTimestamp())
+                    .isEqualTo(Instant.parse("2016-05-07T13:57:59.859Z"));
+            assertThat(event.getMode())
+                    .isEqualTo(EventMode.ACTIVE);
+
+            MessageEvent messageEvent = (MessageEvent) event;
+            assertThat(messageEvent.getReplyToken())
+                    .isEqualTo("nHuyWiB7yP5Zw52FIkcQobQuGDXCTA");
+            MessageContent message = messageEvent.getMessage();
+            assertThat(message).isInstanceOf(StickerMessageContent.class);
+            if (message instanceof StickerMessageContent) {
+                assertThat(((StickerMessageContent) message).getStickerId())
+                        .isEqualTo("1");
+                assertThat(((StickerMessageContent) message).getPackageId())
+                        .isEqualTo("1");
+                assertThat(((StickerMessageContent) message).getStickerResourceType())
+                        .isEqualTo(StickerResourceType.MESSAGE);
+                assertThat(((StickerMessageContent) message).getKeywords())
+                        .containsExactly("bed", "sleep", "bedtime");
+                assertThat(((StickerMessageContent) message).getText())
+                        .isEqualTo("userEnteredText");
+            }
+        });
+    }
+
     @Test
     public void testStickerKeywordsBecomeString() throws IOException {
         parse("callback/sticker-keywords-string.json", callbackRequest -> {

line-bot-model/src/test/resources/callback/sticker-with-text.json

@@ -0,0 +1,28 @@
+{
+  "destination": "Uab012345678901234567890123456789",
+  "events": [
+    {
+      "replyToken": "nHuyWiB7yP5Zw52FIkcQobQuGDXCTA",
+      "type": "message",
+      "timestamp": 1462629479859,
+      "mode": "active",
+      "source": {
+        "type": "user",
+        "userId": "u206d25c2ea6bd87c17655609a1c37cb8"
+      },
+      "message": {
+        "id": "325708",
+        "type": "sticker",
+        "packageId": "1",
+        "stickerId": "1",
+        "stickerResourceType": "MESSAGE",
+        "keywords": [
+          "bed",
+          "sleep",
+          "bedtime"
+        ],
+        "text": "userEnteredText"
+      }
+    }
+  ]
+}