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Refactoring: extracted new TypeConversion class from Utilities.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| /* | ||
| * Copyright (c) 2006 JMockit developers | ||
| * This file is subject to the terms of the MIT license (see LICENSE.txt). | ||
| */ | ||
| package mockit.internal.util; | ||
|
|
||
| import javax.annotation.*; | ||
| import java.math.*; | ||
| import java.util.concurrent.atomic.*; | ||
|
|
||
| import static mockit.internal.util.AutoBoxing.*; | ||
|
|
||
| public final class TypeConversion { | ||
| private TypeConversion() {} | ||
|
|
||
| @Nullable | ||
| public static Object convertFromString(@Nonnull Class<?> targetType, @Nonnull String value) { | ||
| if (targetType == String.class) { | ||
| return value; | ||
| } | ||
| else if (isCharacter(targetType)) { | ||
| return value.charAt(0); | ||
| } | ||
| else if (targetType.isPrimitive() || isWrapperOfPrimitiveType(targetType)) { | ||
| return newWrapperInstance(targetType, value); | ||
| } | ||
| else if (targetType == BigDecimal.class) { | ||
| return new BigDecimal(value.trim()); | ||
| } | ||
| else if (targetType == BigInteger.class) { | ||
| return new BigInteger(value.trim()); | ||
| } | ||
| else if (targetType == AtomicInteger.class) { | ||
| return new AtomicInteger(Integer.parseInt(value.trim())); | ||
| } | ||
| else if (targetType == AtomicLong.class) { | ||
| return new AtomicLong(Long.parseLong(value.trim())); | ||
| } | ||
| else if (targetType.isEnum()) { | ||
| //noinspection unchecked | ||
| return enumValue(targetType, value); | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| private static boolean isCharacter(@Nonnull Class<?> targetType) { | ||
| return targetType == char.class || targetType == Character.class; | ||
| } | ||
|
|
||
| @Nonnull | ||
| private static Object newWrapperInstance(@Nonnull Class<?> targetType, @Nonnull String value) { | ||
| String trimmedValue = value.trim(); | ||
|
|
||
| try { | ||
| if (targetType == int.class || targetType == Integer.class) { | ||
| return Integer.valueOf(trimmedValue); | ||
| } | ||
| else if (targetType == long.class || targetType == Long.class) { | ||
| return Long.valueOf(trimmedValue); | ||
| } | ||
| else if (targetType == short.class || targetType == Short.class) { | ||
| return Short.valueOf(trimmedValue); | ||
| } | ||
| else if (targetType == byte.class || targetType == Byte.class) { | ||
| return Byte.valueOf(trimmedValue); | ||
| } | ||
| else if (targetType == double.class || targetType == Double.class) { | ||
| return Double.valueOf(trimmedValue); | ||
| } | ||
| else if (targetType == float.class || targetType == Float.class) { | ||
| return Float.valueOf(trimmedValue); | ||
| } | ||
| } | ||
| catch (NumberFormatException e) { | ||
| throw new IllegalArgumentException("Invalid value \"" + trimmedValue + "\" for " + targetType); | ||
| } | ||
|
|
||
| return Boolean.valueOf(trimmedValue); | ||
| } | ||
|
|
||
| @Nonnull | ||
| private static <E extends Enum<E>> Object enumValue(Class<?> targetType, @Nonnull String value) { | ||
| @SuppressWarnings("unchecked") Class<E> enumType = (Class<E>) targetType; | ||
| return Enum.valueOf(enumType, value); | ||
| } | ||
| } |
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