es.prodevelop.pui9.data.converters.MapConverter Maven / Gradle / Ivy

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package es.prodevelop.pui9.data.converters;

import java.util.Collections;
import java.util.Map;
import java.util.Set;

import org.springframework.core.convert.TypeDescriptor;

import es.prodevelop.pui9.json.GsonSingleton;

/**
 * This class allows to set a @RequestParam parameter in your controllers
 * indicating that the type of this parameter is a Map.
 * 
 * @author Marc Gil - [email protected]
 */
public class MapConverter implements IPuiGenericConverter {

	@Override
	public Set getConvertibleTypes() {
		return Collections.singleton(new ConvertiblePair(String.class, Map.class));
	}

	@Override
	public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
		try {
			Class clazz = targetType.getType();
			return GsonSingleton.getSingleton().getGson().fromJson(source.toString(), clazz);
		} catch (Exception e) {
			return null;
		}
	}

}