jadex.transformation.jsonserializer.processors.JsonCurrencyProcessor Maven / Gradle / Ivy

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package jadex.transformation.jsonserializer.processors;

import java.lang.reflect.Type;
import java.util.Currency;
import java.util.List;

import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.JsonValue;

import jadex.common.SReflect;
import jadex.common.transformation.IStringConverter;
import jadex.common.transformation.traverser.ITraverseProcessor;
import jadex.common.transformation.traverser.Traverser;
import jadex.common.transformation.traverser.Traverser.MODE;
import jadex.transformation.jsonserializer.JsonTraverser;

/**
 *  Read java.util.Currency objects.
 */
public class JsonCurrencyProcessor extends AbstractJsonProcessor
{
	/**
	 *  Test if the processor is applicable.
	 *  @param object The object.
	 *  @param targetcl	If not null, the traverser should make sure that the result object is compatible with the class loader,
	 *    e.g. by cloning the object using the class loaded from the target class loader.
	 *  @return True, if is applicable. 
	 */
	protected boolean isApplicable(Object object, Type type, ClassLoader targetcl, JsonReadContext context)
	{
		Class clazz = SReflect.getClass(type);
		return object instanceof JsonObject && SReflect.isSupertype(Currency.class, clazz);
	}
	
	/**
	 *  Test if the processor is applicable.
	 *  @param object The object.
	 *  @param targetcl	If not null, the traverser should make sure that the result object is compatible with the class loader,
	 *    e.g. by cloning the object using the class loaded from the target class loader.
	 *  @return True, if is applicable. 
	 */
	protected boolean isApplicable(Object object, Type type, ClassLoader targetcl, JsonWriteContext context)
	{
		Class clazz = SReflect.getClass(type);
		return SReflect.isSupertype(Currency.class, clazz);
	}
	
	/**
	 *  Process an object.
	 *  @param object The object.
	 * @param targetcl	If not null, the traverser should make sure that the result object is compatible with the class loader,
	 *    e.g. by cloning the object using the class loaded from the target class loader.
	 *  @return The processed object.
	 */
	protected Object readObject(Object object, Type type, Traverser traverser, List conversionprocessors, List processors, IStringConverter converter, MODE mode, ClassLoader targetcl, JsonReadContext context)
	{
		JsonObject obj = (JsonObject)object;
		String	code = obj.getString("currencyCode", null);
		Currency	ret	= Currency.getInstance(code);
		
		JsonValue idx = (JsonValue)obj.get(JsonTraverser.ID_MARKER);
		if(idx!=null)
			((JsonReadContext)context).addKnownObject(ret, idx.asInt());
		
		return ret;

	}
	
	/**
	 *  Process an object.
	 *  @param object The object.
	 * @param targetcl	If not null, the traverser should make sure that the result object is compatible with the class loader,
	 *    e.g. by cloning the object using the class loaded from the target class loader.
	 *  @return The processed object.
	 */
	protected Object writeObject(Object object, Type type, Traverser traverser, List conversionprocessors, List processors, IStringConverter converter, MODE mode, ClassLoader targetcl, JsonWriteContext wr)
	{
		wr.addObject(wr.getCurrentInputObject());

		String code = ((Currency)object).getCurrencyCode();
		
		wr.write("{");
		wr.writeNameString("currencyCode", code);
		if(wr.isWriteClass())
			wr.write(",").writeClass(object.getClass());
		if(wr.isWriteId())
			wr.write(",").writeId();
		wr.write("}");
		
		return object;
	}
}