FritzahaQueryscriptUpdateSwitchCallback.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.fritzaha.internal.hardware.callbacks;

import java.io.IOException;
import java.util.Map;

import org.codehaus.jackson.JsonParseException;
import org.codehaus.jackson.map.JsonMappingException;
import org.codehaus.jackson.map.ObjectMapper;
import org.openhab.binding.fritzaha.internal.hardware.FritzahaWebInterface;
import org.openhab.core.library.types.OnOffType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Callback implementation for updating switch states Supports reauthorization
 *
 * @author Christian Brauers
 * @since 1.3.0
 */
public class FritzahaQueryscriptUpdateSwitchCallback extends FritzahaReauthCallback {
    static final Logger logger = LoggerFactory.getLogger(FritzahaQueryscriptUpdateSwitchCallback.class);
    /**
     * Item to update
     */
    private String itemName;

    /**
     * Constructor for retriable authentication and state updating
     * 
     * @param path
     *            Path to HTTP interface
     * @param args
     *            Arguments to use
     * @param webIface
     *            Web interface to use
     * @param httpMethod
     *            Method used
     * @param retries
     *            Number of retries
     * @param itemName
     *            Name of item to update
     */
    public FritzahaQueryscriptUpdateSwitchCallback(String path, String args, FritzahaWebInterface webIface,
            Method httpMethod, int retries, String itemName) {
        super(path, args, webIface, httpMethod, retries);
        this.itemName = itemName;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void execute(int status, String response) {
        super.execute(status, response);
        if (validRequest) {
            logger.debug("Received State response " + response + " for item " + itemName);
            ObjectMapper jsonReader = new ObjectMapper();
            Map<String, String> deviceData;
            try {
                deviceData = jsonReader.readValue(response, Map.class);
            } catch (JsonParseException e) {
                logger.error("Error parsing JSON:\n" + response);
                return;
            } catch (JsonMappingException e) {
                logger.error("Error mapping JSON:\n" + response);
                return;
            } catch (IOException e) {
                logger.error("An I/O error occured while decoding JSON:\n" + response);
                return;
            }
            if (deviceData.containsKey("DeviceSwitchState")) {
                webIface.postUpdate(itemName,
                        "1".equals(deviceData.get("DeviceSwitchState")) ? OnOffType.ON : OnOffType.OFF);
            }
        }
    }

}