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/*
* Copyright 2008 the original author or authors.
*
* 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.
*/
package org.powermock.reflect.internal.primitivesupport;
import java.util.HashMap;
import java.util.Map;
/**
* The purpose of the Primitive Wrapper is to provide methods that deals with
* translating wrapper types to its related primitive type.
*/
public class PrimitiveWrapper {
private static final Map, Class>> primitiveWrapper = new HashMap, Class>>();
static {
primitiveWrapper.put(Integer.class, int.class);
primitiveWrapper.put(Long.class, long.class);
primitiveWrapper.put(Float.class, float.class);
primitiveWrapper.put(Double.class, double.class);
primitiveWrapper.put(Boolean.class, boolean.class);
primitiveWrapper.put(Byte.class, byte.class);
primitiveWrapper.put(Short.class, short.class);
primitiveWrapper.put(Character.class, char.class);
}
/**
* Convert all wrapper types in types
to their primitive
* counter parts.
*
* @param types
* The array of types that should be converted.
* @return A new array where all wrapped types have been converted to their
* primitive counter part.
*/
public static Class>[] toPrimitiveType(Class>[] types) {
if (types == null) {
throw new IllegalArgumentException("types cannot be null");
}
Class>[] convertedTypes = new Class>[types.length];
for (int i = 0; i < types.length; i++) {
final Class> originalType = types[i];
Class> primitiveType = primitiveWrapper.get(originalType);
if (primitiveType == null) {
convertedTypes[i] = originalType;
} else {
convertedTypes[i] = primitiveType;
}
}
return convertedTypes;
}
/**
* Get the primitive counter part from a wrapped type. For example:
*
*
* getPrimitiveFromWrapperType(Integer.class)
will return
* int.class
.
*
*
* @param wrapperType
* The wrapper type to convert to its primitive counter part.
* @return The primitive counter part or null
if the class did
* not have a primitive counter part.
*
*/
public static Class> getPrimitiveFromWrapperType(Class> wrapperType) {
return primitiveWrapper.get(wrapperType);
}
/**
* Returns true
if type
has a primitive
* counter-part. E.g. if type
if Integer
then this
* method will return true
.
*
* @param type
* The type to check whether or not it has a primitive
* counter-part.
* @return true
if this type has a primitive counter-part.
*/
public static boolean hasPrimitiveCounterPart(Class> type) {
return primitiveWrapper.containsKey(type);
}
}