package org.springblade.core.tool.utils;
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import org.springblade.core.tool.convert.BladeConversionService;
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import org.springframework.core.convert.TypeDescriptor;
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import org.springframework.core.convert.support.GenericConversionService;
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import org.springframework.lang.Nullable;
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/**
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* 基于 spring ConversionService 类型转换
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*
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* @author L.cm
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*/
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@SuppressWarnings("unchecked")
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public class ConvertUtil {
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/**
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* Convenience operation for converting a source object to the specified targetType.
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* {@link TypeDescriptor#forObject(Object)}.
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* @param source the source object
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* @param targetType the target type
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* @param <T> 泛型标记
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* @return the converted value
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* @throws IllegalArgumentException if targetType is {@code null},
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* or sourceType is {@code null} but source is not {@code null}
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*/
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@Nullable
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public static <T> T convert(@Nullable Object source, Class<T> targetType) {
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if (source == null) {
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return null;
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}
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if (ClassUtil.isAssignableValue(targetType, source)) {
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return (T) source;
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}
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GenericConversionService conversionService = BladeConversionService.getInstance();
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return conversionService.convert(source, targetType);
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}
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/**
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* Convenience operation for converting a source object to the specified targetType,
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* where the target type is a descriptor that provides additional conversion context.
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* {@link TypeDescriptor#forObject(Object)}.
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* @param source the source object
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* @param sourceType the source type
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* @param targetType the target type
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* @param <T> 泛型标记
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* @return the converted value
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* @throws IllegalArgumentException if targetType is {@code null},
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* or sourceType is {@code null} but source is not {@code null}
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*/
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@Nullable
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public static <T> T convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
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if (source == null) {
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return null;
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}
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GenericConversionService conversionService = BladeConversionService.getInstance();
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return (T) conversionService.convert(source, sourceType, targetType);
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}
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/**
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* Convenience operation for converting a source object to the specified targetType,
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* where the target type is a descriptor that provides additional conversion context.
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* Simply delegates to {@link #convert(Object, TypeDescriptor, TypeDescriptor)} and
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* encapsulates the construction of the source type descriptor using
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* {@link TypeDescriptor#forObject(Object)}.
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* @param source the source object
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* @param targetType the target type
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* @param <T> 泛型标记
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* @return the converted value
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* @throws IllegalArgumentException if targetType is {@code null},
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* or sourceType is {@code null} but source is not {@code null}
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*/
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@Nullable
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public static <T> T convert(@Nullable Object source, TypeDescriptor targetType) {
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if (source == null) {
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return null;
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}
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GenericConversionService conversionService = BladeConversionService.getInstance();
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return (T) conversionService.convert(source, targetType);
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}
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}
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