Java tutorial
/** * Copyright (c) 2010-2019 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.octoller.internal; import java.util.Dictionary; import org.apache.commons.lang.StringUtils; import org.octoller.devicecom.Connection; import org.openhab.binding.octoller.OctollerBindingProvider; import org.openhab.core.binding.AbstractActiveBinding; import org.openhab.core.types.Command; import org.osgi.service.cm.ConfigurationException; import org.osgi.service.cm.ManagedService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * This class sends commands and polls the states to / from the connected blocks * the octoller. * * @author JPlenert * @since 1.8.0 */ public class OctollerBinding extends AbstractActiveBinding<OctollerBindingProvider> implements ManagedService { private static final Logger logger = LoggerFactory.getLogger(OctollerBinding.class); /** * the refresh interval which is used to poll values from the octoller * server (optional, defaults to 60000ms) */ private long refreshInterval = 60000; public OctollerBinding() { } @Override public void activate() { } @Override public void deactivate() { // 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 "octoller Refresh Service"; } /** * @{inheritDoc */ @Override protected void execute() { logger.debug("execute() method is called!"); for (OctollerBindingProvider provider : providers) { for (String itemName : provider.getItemNames()) { OctollerBindingConfig config = provider.getConfig(itemName); if (config == null) { continue; } try { Connection con = new Connection(config.GatewayHost); String result = con.doCommand(con.buildCommandString(config, "", "")); con.processResultToPublisher(eventPublisher, itemName, result); con.close(); logger.debug("OctollerBinding: Got state from " + itemName + " -> " + result); } catch (Exception e) { e.printStackTrace(); } } } } /** * @{inheritDoc */ @Override protected void internalReceiveCommand(String itemName, Command command) { for (OctollerBindingProvider provider : providers) { OctollerBindingConfig config = provider.getConfig(itemName); if (config == null) { continue; } try { Connection con = new Connection(config.GatewayHost); String result = con.doCommand( con.buildCommandString(config, command.getClass().getSimpleName(), command.toString())); con.processResultToPublisher(eventPublisher, itemName, result); con.close(); } catch (Exception e) { e.printStackTrace(); } } } protected void addBindingProvider(OctollerBindingProvider bindingProvider) { super.addBindingProvider(bindingProvider); } protected void removeBindingProvider(OctollerBindingProvider bindingProvider) { super.removeBindingProvider(bindingProvider); } /** * {@inheritDoc} */ @Override public void updated(Dictionary<String, ?> config) throws ConfigurationException { if (config != null) { String refreshIntervalString = (String) config.get("refresh"); if (StringUtils.isNotBlank(refreshIntervalString)) { refreshInterval = Long.parseLong(refreshIntervalString); } setProperlyConfigured(true); } } }