Method to return the declared type name of the provided TypeMirror. - Java Reflection

Java examples for Reflection:Method Name

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Description

Method to return the declared type name of the provided TypeMirror.

Demo Code

/**********************************************************************
Copyright (c) 2010 Andy Jefferson and others. All rights reserved.
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/*  ww w  .  j  a  v a  2  s .  c  om*/

    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.

Contributors:
   ...
 **********************************************************************/
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.AnnotationValue;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.ArrayType;
import javax.lang.model.type.PrimitiveType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;

public class Main{
    /**
     * Method to return the declared type name of the provided TypeMirror.
     * @param processingEnv Processing environment
     * @param type The type (mirror)
     * @param box Whether to (auto)box this type
     * @return The type name (e.g "java.lang.String")
     */
    public static String getDeclaredTypeName(
            ProcessingEnvironment processingEnv, TypeMirror type,
            boolean box) {
        if (type == null || type.getKind() == TypeKind.NULL
                || type.getKind() == TypeKind.WILDCARD) {
            return "java.lang.Object";
        }
        if (type.getKind() == TypeKind.ARRAY) {
            TypeMirror comp = ((ArrayType) type).getComponentType();
            return getDeclaredTypeName(processingEnv, comp, false);
        }

        if (box && AnnotationProcessorUtils.typeIsPrimitive(type)) {
            type = processingEnv.getTypeUtils()
                    .boxedClass((PrimitiveType) type).asType();
        }
        if (AnnotationProcessorUtils.typeIsPrimitive(type)) {
            return ((PrimitiveType) type).toString();
        }
        return processingEnv.getTypeUtils().asElement(type).toString();
    }
    /**
     * Convenience method to return if the provided type is a primitive.
     * @param type The type
     * @return Whether it is a primitive
     */
    public static boolean typeIsPrimitive(TypeMirror type) {
        TypeKind kind = type.getKind();
        return kind == TypeKind.BOOLEAN || kind == TypeKind.BYTE
                || kind == TypeKind.CHAR || kind == TypeKind.DOUBLE
                || kind == TypeKind.FLOAT || kind == TypeKind.INT
                || kind == TypeKind.LONG || kind == TypeKind.SHORT;
    }
}

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