Watcher: Remove unused hipchat render method (#32211)

The HipChatMessage#render is no longer used, and instead the
HipChatAccount#render is used in the ExecutableHipChatAction. Only a
test that validated the HttpProxy used this render method still. This
commit cleans it up.

x-pack/plugin/watcher/src/main/java/org/elasticsearch/xpack/watcher/notification/hipchat/HipChatMessage.java

@@ -13,14 +13,12 @@
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.xpack.watcher.common.text.TextTemplate;
-import org.elasticsearch.xpack.watcher.common.text.TextTemplateEngine;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
-import java.util.Map;
 import java.util.Objects;
 
 public class HipChatMessage implements ToXContentObject {
@@ -181,26 +179,6 @@ public int hashCode() {
             return Objects.hash(body, rooms, users, from, format, color, notify);
         }
 
-        public HipChatMessage render(TextTemplateEngine engine, Map<String, Object> model) {
-            String body = engine.render(this.body, model);
-            String[] rooms = null;
-            if (this.rooms != null) {
-                rooms = new String[this.rooms.length];
-                for (int i = 0; i < this.rooms.length; i++) {
-                    rooms[i] = engine.render(this.rooms[i], model);
-                }
-            }
-            String[] users = null;
-            if (this.users != null) {
-                users = new String[this.users.length];
-                for (int i = 0; i < this.users.length; i++) {
-                    users[i] = engine.render(this.users[i], model);
-                }
-            }
-            Color color = this.color == null ? null : Color.resolve(engine.render(this.color, model), null);
-            return new HipChatMessage(body, rooms, users, from, format, color, notify);
-        }
-
         @Override
         public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
             builder.startObject();

x-pack/plugin/watcher/src/test/java/org/elasticsearch/xpack/watcher/notification/hipchat/HipChatAccountsTests.java

@@ -12,12 +12,9 @@
 import org.elasticsearch.xpack.watcher.common.http.HttpProxy;
 import org.elasticsearch.xpack.watcher.common.http.HttpRequest;
 import org.elasticsearch.xpack.watcher.common.http.HttpResponse;
-import org.elasticsearch.xpack.watcher.common.text.TextTemplate;
-import org.elasticsearch.xpack.watcher.test.MockTextTemplateEngine;
 import org.junit.Before;
 import org.mockito.ArgumentCaptor;
 
-import java.util.HashMap;
 import java.util.HashSet;
 
 import static org.hamcrest.Matchers.is;
@@ -40,11 +37,7 @@ public void testProxy() throws Exception {
                 new HashSet<>(HipChatService.getSettings())));
         HipChatAccount account = service.getAccount("account1");
 
-        HipChatMessage.Template template = new HipChatMessage.Template.Builder(new TextTemplate("foo"))
-                .addRooms(new TextTemplate("room"))
-                .setFrom("from")
-                .build();
-        HipChatMessage hipChatMessage = template.render(new MockTextTemplateEngine(), new HashMap<>());
+        HipChatMessage hipChatMessage = new HipChatMessage("body", new String[]{"rooms"}, null, "from", null, null, null);
 
         ArgumentCaptor<HttpRequest> argumentCaptor = ArgumentCaptor.forClass(HttpRequest.class);
         when(httpClient.execute(argumentCaptor.capture())).thenReturn(new HttpResponse(200));