Complete menu creation api

src/main/java/cc/ryanc/halo/model/entity/Menu.java

@@ -31,13 +31,13 @@ public class Menu extends BaseEntity {
     /**
      * Menu name.
      */
-    @Column(name = "name", columnDefinition = "varchar(255) not null")
+    @Column(name = "name", columnDefinition = "varchar(50) not null")
     private String name;
 
     /**
      * Menu access url.
      */
-    @Column(name = "url", columnDefinition = "varchar(255) not null")
+    @Column(name = "url", columnDefinition = "varchar(1023) not null")
     private String url;
 
     /**

src/main/java/cc/ryanc/halo/model/params/MenuParam.java

@@ -0,0 +1,40 @@
+package cc.ryanc.halo.model.params;
+
+import cc.ryanc.halo.model.dto.base.InputConverter;
+import cc.ryanc.halo.model.entity.Menu;
+import lombok.Data;
+import lombok.ToString;
+import org.hibernate.validator.constraints.URL;
+
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+
+/**
+ * Menu param.
+ *
+ * @author johnniang
+ * @date 4/3/19
+ */
+@Data
+@ToString
+public class MenuParam implements InputConverter<Menu> {
+
+    @NotBlank(message = "Menu name must not be blank")
+    @Size(max = 50, message = "Length of menu name must not be more than {max}")
+    private String name;
+
+    @NotBlank(message = "Menu url must not be blank")
+    @Size(max = 1023, message = "Length of menu url must not be more than {max}")
+    @URL(message = "Menu url has incorrect url format")
+    private String url;
+
+    @Min(value = 0, message = "Menu sort must not be less than {value}")
+    private Integer sort;
+
+    @Size(max = 50, message = "Length of menu target must not be more than {max}")
+    private String target;
+
+    @Size(max = 50, message = "Length of menu icon must not be more than {max}")
+    private String icon;
+}

src/main/java/cc/ryanc/halo/repository/MenuRepository.java

@@ -2,6 +2,7 @@ package cc.ryanc.halo.repository;
 
 import cc.ryanc.halo.model.entity.Menu;
 import cc.ryanc.halo.repository.base.BaseRepository;
+import org.springframework.lang.NonNull;
 
 /**
  * Menu repository.
@@ -9,4 +10,12 @@ import cc.ryanc.halo.repository.base.BaseRepository;
  * @author johnniang
  */
 public interface MenuRepository extends BaseRepository<Menu, Integer> {
+
+    /**
+     * Exists by menu name.
+     *
+     * @param name must not be blank
+     * @return true if exists; false otherwise
+     */
+    boolean existsByName(@NonNull String name);
 }

src/main/java/cc/ryanc/halo/service/MenuService.java

@@ -2,6 +2,7 @@ package cc.ryanc.halo.service;
 
 import cc.ryanc.halo.model.dto.MenuOutputDTO;
 import cc.ryanc.halo.model.entity.Menu;
+import cc.ryanc.halo.model.params.MenuParam;
 import cc.ryanc.halo.service.base.CrudService;
 import org.springframework.data.domain.Sort;
 import org.springframework.lang.NonNull;
@@ -23,4 +24,13 @@ public interface MenuService extends CrudService<Menu, Integer> {
      */
     @NonNull
     List<MenuOutputDTO> listDtos(@NonNull Sort sort);
+
+    /**
+     * Creates a menu.
+     *
+     * @param menuParam must not be null
+     * @return created menu
+     */
+    @NonNull
+    Menu createBy(@NonNull MenuParam menuParam);
 }

src/main/java/cc/ryanc/halo/service/impl/MenuServiceImpl.java

@@ -1,7 +1,9 @@
 package cc.ryanc.halo.service.impl;
 
+import cc.ryanc.halo.exception.AlreadyExistsException;
 import cc.ryanc.halo.model.dto.MenuOutputDTO;
 import cc.ryanc.halo.model.entity.Menu;
+import cc.ryanc.halo.model.params.MenuParam;
 import cc.ryanc.halo.repository.MenuRepository;
 import cc.ryanc.halo.service.MenuService;
 import cc.ryanc.halo.service.base.AbstractCrudService;
@@ -37,6 +39,22 @@ public class MenuServiceImpl extends AbstractCrudService<Menu, Integer> implemen
         return convertTo(listAll(sort));
     }
 
+    @Override
+    public Menu createBy(MenuParam menuParam) {
+        Assert.notNull(menuParam, "Menu param must not be null");
+
+        // Check the name
+        boolean exists = menuRepository.existsByName(menuParam.getName());
+
+        if (exists) {
+            throw new AlreadyExistsException("The menu name " + menuParam.getName() + " has already existed").setErrorData(menuParam.getName());
+        }
+
+        // Create an return
+        return create(menuParam.convertTo());
+    }
+
+
     private List<MenuOutputDTO> convertTo(List<Menu> menus) {
         if (CollectionUtils.isEmpty(menus)) {
             return Collections.emptyList();

src/main/java/cc/ryanc/halo/web/controller/admin/api/MenuController.java

@@ -1,8 +1,18 @@
 package cc.ryanc.halo.web.controller.admin.api;
 
+import cc.ryanc.halo.model.dto.MenuOutputDTO;
+import cc.ryanc.halo.model.entity.Menu;
+import cc.ryanc.halo.model.params.MenuParam;
 import cc.ryanc.halo.service.MenuService;
-import org.springframework.web.bind.annotation.RequestMapping;
+import io.swagger.annotations.ApiOperation;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.web.SortDefault;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.List;
+
+import static org.springframework.data.domain.Sort.Direction.DESC;
 
 /**
  * Menu controller.
@@ -20,4 +30,15 @@ public class MenuController {
         this.menuService = menuService;
     }
 
+    @GetMapping
+    @ApiOperation("Lists all menus")
+    public List<MenuOutputDTO> listAll(@SortDefault(sort = "sort", direction = DESC) Sort sort) {
+        return menuService.listDtos(sort);
+    }
+
+    @PostMapping
+    @ApiOperation("Creates a menu")
+    public MenuOutputDTO createBy(@RequestBody @Valid MenuParam menuParam) {
+        return new MenuOutputDTO().convertFrom(menuService.createBy(menuParam));
+    }
 }