X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fdemo%2FDemoController.java;h=59cc3defc91de1d8633bcbff063e05eb670e4000;hb=804d85a8ec9c52c570320f1e3a135b5bc8019d1d;hp=b84178097aeae2495b80db7fd87cc4da53cdcc9d;hpb=9de876c5fb510a0ec6ec439aaa371673d6382c58;p=demos%2Fspring-boot

diff --git a/src/main/java/de/juplo/demo/DemoController.java b/src/main/java/de/juplo/demo/DemoController.java
index b841780..59cc3de 100644
--- a/src/main/java/de/juplo/demo/DemoController.java
+++ b/src/main/java/de/juplo/demo/DemoController.java
@@ -2,10 +2,13 @@ package de.juplo.demo;
 
 
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.thymeleaf.util.StringUtils;
 
 
 /**
@@ -16,6 +19,20 @@ import org.springframework.web.bind.annotation.RequestMapping;
 @Slf4j
 public class DemoController
 {
+  @ModelAttribute
+  public Form createForm(
+      @RequestParam(name = "name", required = false) String param)
+  {
+    Form form = new Form();
+    if (param == null)
+    {
+      Stream
+          .of( "foo", "bar" )
+          .forEach(option -> form.map.put(option, false));
+    }
+    return form;
+  }
+
   @RequestMapping("/")
   public String display(@ModelAttribute Form form)
   {
@@ -30,4 +47,27 @@ public class DemoController
             .collect(Collectors.joining(", ", ", ", "")));
     return "form";
   }
+
+  @RequestMapping(path = "/", params = "add")
+  public String add(@ModelAttribute Form form, @RequestParam String name)
+  {
+    if (!StringUtils.isEmptyOrWhitespace(name))
+    {
+      form.map.put(name.trim(), Boolean.FALSE);
+      log.info("Added option \"{}\" to the map", name.trim());
+    }
+    else
+    {
+      log.info("Ignoring empty option-name");
+    }
+    return display(form);
+  }
+
+  @RequestMapping(path = "/", params = "remove")
+  public String remove(@ModelAttribute Form form, @RequestParam String remove)
+  {
+    Boolean value = form.map.remove(remove);
+    log.info("Removed option \"{}\" with value {} from the map", remove, value);
+    return display(form);
+  }
 }