package org.springframework.beans;
import java.lang.reflect.Field;
import org.springframework.core.MethodParameter;
import org.springframework.core.convert.ConversionException;
import org.springframework.core.convert.ConverterNotFoundException;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
public abstract class TypeConverterSupport extends PropertyEditorRegistrySupport implements TypeConverter {
@Nullable
TypeConverterDelegate typeConverterDelegate;
@Override
@Nullable
public <T> T convertIfNecessary(@Nullable Object value, @Nullable Class<T> requiredType) throws TypeMismatchException {
return convertIfNecessary(value, requiredType, TypeDescriptor.valueOf(requiredType));
}
@Override
@Nullable
public <T> T convertIfNecessary(@Nullable Object value, @Nullable Class<T> requiredType,
@Nullable MethodParameter methodParam) throws TypeMismatchException {
return convertIfNecessary(value, requiredType,
(methodParam != null ? new TypeDescriptor(methodParam) : TypeDescriptor.valueOf(requiredType)));
}
@Override
@Nullable
public <T> T convertIfNecessary(@Nullable Object value, @Nullable Class<T> requiredType, @Nullable Field field)
throws TypeMismatchException {
return convertIfNecessary(value, requiredType,
(field != null ? new TypeDescriptor(field) : TypeDescriptor.valueOf(requiredType)));
}
@Nullable
@Override
public <T> T convertIfNecessary(@Nullable Object value, @Nullable Class<T> requiredType,
@Nullable TypeDescriptor typeDescriptor) throws TypeMismatchException {
Assert.state(this.typeConverterDelegate != null, "No TypeConverterDelegate");
try {
return this.typeConverterDelegate.convertIfNecessary(null, null, value, requiredType, typeDescriptor);
}
catch (ConverterNotFoundException | IllegalStateException ex) {
throw new ConversionNotSupportedException(value, requiredType, ex);
}
catch (ConversionException | IllegalArgumentException ex) {
throw new TypeMismatchException(value, requiredType, ex);
}
}
}