QuantitySnak.java

package mediawiki.info.wikibase.snaks;

import javat.xml.Element;

import org.json.JSONException;
import org.json.JSONObject;

import mediawiki.info.wikibase.ValueSnak;
import mediawiki.info.wikibase.WikibaseQuantity;

public class QuantitySnak extends ValueSnak<WikibaseQuantity> {

	public QuantitySnak(WikibaseQuantity value) {
		super(value);
	}

	@Override
	public JSONObject toJSONObject() throws JSONException {
		JSONObject o = new JSONObject();
		o.put("amount", (getValue().getAmount() >= 0 ? "+" : "")+getValue().getAmount());
		o.put("unit", getValue().getUnit());
		o.put("upperBound", (getValue().getUpperBound() >= 0 ? "+" : "")+getValue().getUpperBound());
		o.put("lowerBound", (getValue().getLowerBound() >= 0 ? "+" : "")+getValue().getLowerBound());
		return o;
	}

	@Override
	public Object toReferenceRepresentation() throws JSONException {
		JSONObject o = new JSONObject();
		o.put("type", "quantity");
		o.put("value", toJSONObject());
		return o;
	}

	@Override
	public Object toClaimRepresentation() throws JSONException {
		return toJSONObject();
	}

	@Override
	public void convert(Element e) throws Exception {
		e = e.getChildren("value").get(0);
		double amount = Double.parseDouble(e.getAttribute("amount").getValue());
		double upperBound = Double.parseDouble(e.getAttribute("upperBound").getValue());
		double lowerBound = Double.parseDouble(e.getAttribute("lowerBound").getValue());
		String unit = e.getAttribute("unit").getValue();
		
		setValue(new WikibaseQuantity(amount,upperBound,lowerBound,unit));
	}

	@Override
	public String getDatatype() {
		return "quantity";
	}

}