Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2004-2014 the Seasar Foundation and the Others.
 *
 * 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.
 */

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

import java.util.HashMap;

import java.util.Map;

public class Main {
    private static Map<Class<?>, Class<?>> wrapperToPrimitiveMap = new HashMap<Class<?>, Class<?>>();

    protected static boolean isTypeOf(Type type, Class<?> clazz) {
        if (Class.class.isInstance(type)) {
            return clazz.isAssignableFrom(Class.class.cast(type));
        }
        if (ParameterizedType.class.isInstance(type)) {
            final ParameterizedType parameterizedType = ParameterizedType.class.cast(type);
            return isTypeOf(parameterizedType.getRawType(), clazz);
        }
        return false;
    }

    public static boolean isAssignableFrom(Class<?> toClass, Class<?> fromClass) {
        if (toClass == Object.class && !fromClass.isPrimitive()) {
            return true;
        }
        if (toClass.isPrimitive()) {
            fromClass = getPrimitiveClassIfWrapper(fromClass);
        }
        return toClass.isAssignableFrom(fromClass);
    }

    public static Class<?> getPrimitiveClassIfWrapper(Class<?> clazz) {
        Class<?> ret = getPrimitiveClass(clazz);
        if (ret != null) {
            return ret;
        }
        return clazz;
    }

    public static Class<?> getPrimitiveClass(Class<?> clazz) {
        return (Class<?>) wrapperToPrimitiveMap.get(clazz);
    }
}