BooleanCharacteristic.java

package com.beowulfe.hap.characteristics;

import javax.json.JsonNumber;
import javax.json.JsonValue;
import javax.json.JsonValue.ValueType;

/**
 * Characteristic that exposes a Boolean value.
 *
 * @author Andy Lintner
 */
public abstract class BooleanCharacteristic extends BaseCharacteristic<Boolean> {
	
	/**
	 * Default constructor
	 * 
	 * @param type a string containing a UUID that indicates the type of characteristic. Apple defines a set of these,
	 *  however implementors can create their own as well.
	 * @param isWritable indicates whether the value can be changed.
	 * @param isReadable indicates whether the value can be retrieved.
	 * @param description a description of the characteristic to be passed to the consuming device.
	 */
	public BooleanCharacteristic(String type, boolean isWritable, boolean isReadable, String description) {
		super(	type,
				"bool",
				isWritable,
				isReadable,
				description);
		
	}
	
	/**
	 * {@inheritDoc}
	 */
	@Override
	protected Boolean convert(JsonValue jsonValue) {
		if (jsonValue.getValueType().equals(ValueType.NUMBER)) {
			return ((JsonNumber) jsonValue).intValue() > 0;
		}
		return jsonValue.equals(JsonValue.TRUE);
	}
	
	/**
	 * {@inheritDoc}
	 */
	@Override
	protected Boolean getDefault() {
		return false;
	}

}