ClassUtils.java example

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usergrid-master
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
package org.apache.usergrid.persistence.index.utils;


import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;


public class ClassUtils extends org.apache.commons.lang.ClassUtils {

    @SuppressWarnings("unchecked")
    public static <A, B> B cast( A a ) {
        return ( B ) a;
    }


    @SuppressWarnings("unchecked")
    private static final Set<Class<?>> WRAPPER_TYPES = new HashSet<Class<?>>(
            Arrays.asList( Boolean.class, Byte.class, Character.class, Double.class, Float.class, Integer.class,
                    Long.class, Short.class, Void.class ) );


    public static boolean isWrapperType( Class<?> clazz ) {
        return WRAPPER_TYPES.contains( clazz );
    }


    public static boolean isPrimitiveType( Class<?> clazz ) {
        if ( clazz == null ) {
            return false;
        }
        return clazz.isPrimitive() || isWrapperType( clazz );
    }


    public static boolean isBasicType( Class<?> clazz ) {
        if ( clazz == null ) {
            return false;
        }
        return ( String.class.isAssignableFrom( clazz ) ) || isPrimitiveType( clazz );
    }
}