org.openhab.binding.smartbus.internal.SmartBusBinding.java Source code

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Here is the source code for org.openhab.binding.smartbus.internal.SmartBusBinding.java

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/**
 * Copyright (c) 2010-2013, openHAB.org and others.
 *
 * 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.smartbus.internal;

import java.net.SocketException;
import java.util.Dictionary;

import org.apache.commons.lang.StringUtils;
import org.openhab.binding.smartbus.SmartBusBindingProvider;
import org.openhab.core.binding.AbstractActiveBinding;
import org.openhab.core.library.types.OnOffType;
import org.openhab.core.types.Command;
import org.openhab.core.types.State;
import org.osgi.service.cm.ConfigurationException;
import org.osgi.service.cm.ManagedService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import se.brittatorp.common.Helpers;
import se.brittatorp.homeauto.smartbus.SmartbusCallbacks;
import se.brittatorp.homeauto.smartbus.operations.ForwardlyReportStatus;
import se.brittatorp.homeauto.smartbus.operations.OperationBase;
import se.brittatorp.homeauto.smartbus.operations.SingleChannelControl;
import se.brittatorp.homeauto.smartbus.transports.*;;

/**
 * Implement this class if you are going create an actively polling service
 * like querying a Website/Device.
 * 
 * @author Mattias
 * @since 1.4.0
 */
public class SmartBusBinding extends AbstractActiveBinding<SmartBusBindingProvider>
        implements ManagedService, SmartbusCallbacks {

    private static final Logger logger = LoggerFactory.getLogger(SmartBusBinding.class);

    /** 
     * the refresh interval which is used to poll values from the SmartBus
     * server (optional, defaults to 60000ms)
     */
    private long refreshInterval = 60000;
    private TransportIP transportUdp;

    public SmartBusBinding() {
    }

    public void activate() {
        try {
            transportUdp = new TransportIP(this);
        } catch (SocketException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        transportUdp.start();
        logger.debug("transportUDP thread started!");
    }

    public void deactivate() {
        transportUdp.interrupt();
        try {
            transportUdp.join();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        // deallocate resources here that are no longer needed and 
        // should be reset when activating this binding again
    }

    /**
     * @{inheritDoc}
     */
    @Override
    protected long getRefreshInterval() {
        return refreshInterval;
    }

    /**
     * @{inheritDoc}
     */
    @Override
    protected String getName() {
        return "SmartBus Refresh Service";
    }

    /**
     * @{inheritDoc}
     */
    @Override
    protected void execute() {
        // the frequently executed code (polling) goes here ...
        logger.debug("execute() method is called!");
        logger.debug(transportUdp.getState().name());
    }

    /**
     * @{inheritDoc}
     */
    @Override
    protected void internalReceiveCommand(String itemName, Command command) {
        // the code being executed when a command was sent on the openHAB
        // event bus goes here. This method is only called if one of the 
        // BindingProviders provide a binding for the given 'itemName'.
        logger.debug("internalReceiveCommand() is called!");
        SmartBusBindingProvider provider = findFirstMatchingBindingProvider(itemName);
        int channelNo = provider.getChannelNo(itemName);
        int devId = provider.getDeviceId(itemName);
        int snetId = provider.getSubnetId(itemName);
        logger.debug("DevId: " + devId);
        SingleChannelControl operation = new SingleChannelControl((short) channelNo, (short) 1, 1);
        SmartbusPacket packet = new SmartbusPacket((short) 1, (short) 1, 118, (short) snetId, (short) devId,
                (OperationBase) operation);
        transportUdp.send(packet);
    }

    private SmartBusBindingProvider findFirstMatchingBindingProvider(String itemName) {

        SmartBusBindingProvider firstMatchingProvider = null;

        for (SmartBusBindingProvider provider : this.providers) {

            int channelNo = provider.getChannelNo(itemName);

            if (channelNo > 0) {
                firstMatchingProvider = provider;
                break;
            }
        }

        return firstMatchingProvider;
    }

    /**
     * @{inheritDoc}
     */
    @Override
    protected void internalReceiveUpdate(String itemName, State newState) {
        // the code being executed when a state was sent on the openHAB
        // event bus goes here. This method is only called if one of the 
        // BindingProviders provide a binding for the given 'itemName'.
        logger.debug("internalReceiveCommand() is called!");
    }

    /**
     * @{inheritDoc}
     */
    @Override
    public void updated(Dictionary<String, ?> config) throws ConfigurationException {
        if (config != null) {

            // to override the default refresh interval one has to add a 
            // parameter to openhab.cfg like <bindingName>:refresh=<intervalInMs>
            String refreshIntervalString = (String) config.get("refresh");
            if (StringUtils.isNotBlank(refreshIntervalString)) {
                refreshInterval = Long.parseLong(refreshIntervalString);
            }

            // read further config parameters here ...

            setProperlyConfigured(true);
        }
    }

    @Override
    public void PackageReceivedEvent(SmartbusPacket smartbusPacket) {
        switch (smartbusPacket.getOperationCode()) {
        case 0xEFFF:
            ForwardlyReportStatus operation = new ForwardlyReportStatus(smartbusPacket);
            for (SmartBusBindingProvider provider : providers) {
                for (String itemName : provider.getItemNames()) {
                    if ((provider.getSubnetId(itemName) == smartbusPacket.getOriginalSubnetId())
                            & (provider.getDeviceId(itemName) == smartbusPacket.getOriginalDeviceId())) {
                        eventPublisher.postUpdate(itemName,
                                operation.statusOfChannel[provider.getChannelNo(itemName) - 1] ? OnOffType.ON
                                        : OnOffType.OFF);
                    }
                }
            }
            break;
        default:
            OperationBase operationBase = OperationBase.getOperation(smartbusPacket);
            if (operationBase != null) {
                logger.debug("OperationFields: " + Helpers.getDeclaredFieldsAsString(operationBase));
            }
        }

    }

}