mvc: add a new name method on @XXXParam annotation

- fix #3762
- mvc: default value on @QueryParam/@CookieParam/@HeaderParam annotation ref #3761

Author: jknack

jooby/src/main/java/io/jooby/Body.java

@@ -20,7 +20,6 @@
 import io.jooby.internal.ByteArrayBody;
 import io.jooby.internal.FileBody;
 import io.jooby.internal.InputStreamBody;
-import io.jooby.internal.MissingValue;
 import io.jooby.value.Value;
 
 /**
@@ -58,11 +57,6 @@ default Value get(int index) {
     return get(Integer.toString(index));
   }
 
-  @Override
-  default Value get(@NonNull String name) {
-    return new MissingValue(name);
-  }
-
   @Override
   default Iterator<Value> iterator() {
     return List.of((Value) this).iterator();
@@ -73,7 +67,7 @@ default Iterator<Value> iterator() {
    *
    * @return Body as byte array.
    */
-  @NonNull byte[] bytes();
+  byte[] bytes();
 
   /**
    * True if body is on memory. False, indicates body is on file system. Body larger than {@link

jooby/src/main/java/io/jooby/DefaultContext.java

@@ -136,7 +136,7 @@ default Value session(@NonNull String name) {
     if (session != null) {
       return session.get(name);
     }
-    return Value.missing(name);
+    return Value.missing(getValueFactory(), name);
   }
 
   @Override
@@ -178,7 +178,9 @@ default Object forward(@NonNull String path) {
   @Override
   default Value cookie(@NonNull String name) {
     String value = cookieMap().get(name);
-    return value == null ? Value.missing(name) : Value.value(getValueFactory(), name, value);
+    return value == null
+        ? Value.missing(getValueFactory(), name)
+        : Value.value(getValueFactory(), name, value);
   }
 
   /**
@@ -221,14 +223,14 @@ default Value lookup(@NonNull String name, ParamSource... sources) {
         .map(source -> source.provider.apply(this, name))
         .filter(value -> !value.isMissing())
         .findFirst()
-        .orElseGet(() -> Value.missing(name));
+        .orElseGet(() -> Value.missing(getValueFactory(), name));
   }
 
   @Override
   default Value path(@NonNull String name) {
     String value = pathMap().get(name);
     return value == null
-        ? new MissingValue(name)
+        ? new MissingValue(getValueFactory(), name)
         : new SingleValue(getValueFactory(), name, UrlParser.decodePathSegment(value));
   }
 

jooby/src/main/java/io/jooby/ForwardingContext.java

@@ -119,6 +119,11 @@ public Value get(@NonNull String name) {
       return delegate.get(name);
     }
 
+    @Override
+    public Value getOrDefault(@NonNull String name, @NonNull String defaultValue) {
+      return delegate.getOrDefault(name, defaultValue);
+    }
+
     @Override
     public int size() {
       return delegate.size();
@@ -320,7 +325,7 @@ public ForwardingValue(Value delegate) {
     }
 
     @Override
-    public Value get(@NonNull int index) {
+    public Value get(int index) {
       return delegate.get(index);
     }
 
@@ -329,6 +334,11 @@ public Value get(@NonNull String name) {
       return delegate.get(name);
     }
 
+    @Override
+    public Value getOrDefault(@NonNull String name, @NonNull String defaultValue) {
+      return delegate.getOrDefault(name, defaultValue);
+    }
+
     @Override
     public int size() {
       return delegate.size();

jooby/src/main/java/io/jooby/annotation/ContextParam.java

@@ -28,9 +28,10 @@
 public @interface ContextParam {
 
   /**
-   * Attribute's name. See {@link io.jooby.Context#getAttribute(String)}
+   * Attribute's name. See {@link io.jooby.Context#getAttribute(String)}. Defaults to method
+   * parameter name.
    *
-   * @return Attribute's name.
+   * @return Attribute's name. Defaults to method parameter name.
    */
-  String value() default "";
+  String name() default "";
 }

jooby/src/main/java/io/jooby/annotation/CookieParam.java

@@ -23,9 +23,9 @@
 @Target(ElementType.PARAMETER)
 public @interface CookieParam {
   /**
-   * Parameter name.
+   * Parameter name. Defaults to method parameter name.
    *
-   * @return Parameter name.
+   * @return Parameter name. Defaults to method parameter name.
    */
-  String value() default "";
+  String name() default "";
 }

jooby/src/main/java/io/jooby/annotation/FlashParam.java

@@ -23,9 +23,9 @@
 @Target(ElementType.PARAMETER)
 public @interface FlashParam {
   /**
-   * Parameter name.
+   * Parameter name. Defaults to method parameter name.
    *
-   * @return Parameter name.
+   * @return Parameter name. Defaults to method parameter name.
    */
-  String value() default "";
+  String name() default "";
 }

jooby/src/main/java/io/jooby/annotation/FormParam.java

@@ -31,9 +31,9 @@
 public @interface FormParam {
 
   /**
-   * Parameter name.
+   * Parameter name. Defaults to method parameter name.
    *
-   * @return Parameter name.
+   * @return Parameter name. Defaults to method parameter name.
    */
-  String value() default "";
+  String name() default "";
 }

jooby/src/main/java/io/jooby/annotation/HeaderParam.java

@@ -28,9 +28,9 @@
 public @interface HeaderParam {
 
   /**
-   * Parameter name.
+   * Parameter name. Defaults to method parameter name.
    *
-   * @return Parameter name.
+   * @return Parameter name. Defaults to method parameter name.
    */
-  String value() default "";
+  String name() default "";
 }

jooby/src/main/java/io/jooby/annotation/Param.java

@@ -28,9 +28,9 @@
 public @interface Param {
 
   /**
-   * Parameter name.
+   * Parameter name. Defaults to method parameter name.
    *
-   * @return Parameter name.
+   * @return Parameter name. Defaults to method parameter name.
    */
   String name() default "";
 

jooby/src/main/java/io/jooby/annotation/PathParam.java

@@ -24,9 +24,9 @@
 @Target(ElementType.PARAMETER)
 public @interface PathParam {
   /**
-   * Path pattern. Default <code>/</code>.
+   * Parameter name. Defaults to method parameter name.
    *
-   * @return Path pattern. Default <code>/</code>.
+   * @return Parameter name. Defaults to method parameter name.
    */
-  String value() default "";
+  String name() default "";
 }