Add BannerController

Author: michael-simons

src/main/java/ac/simons/doag2016/BannerController.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2016 michael-simons.eu.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package ac.simons.doag2016;
+
+import java.io.IOException;
+import java.io.PrintStream;
+import javax.servlet.http.HttpServletResponse;
+import org.springframework.boot.Banner;
+import org.springframework.core.env.Environment;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+/**
+ * @author Michael J. Simons, 2016-04-15
+ */
+@Controller
+@RequestMapping("/api/banner")
+class BannerController {
+
+    private final Banner banner;
+
+    private final Environment environment;
+
+    BannerController(final Banner banner, final Environment environment) {
+        this.banner = banner;
+        this.environment = environment;
+    }
+
+    @GetMapping(produces = MediaType.APPLICATION_JSON_VALUE)
+    public void get(final HttpServletResponse response) throws IOException {
+        try (PrintStream printStream = new PrintStream(response.getOutputStream())) {
+            banner.printBanner(environment, BannerController.class, printStream);
+        }
+    }
+}