Java tutorial
/** * Copyright (c) 2010-2015, 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.panasonictv.internal; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.net.Socket; import java.util.Dictionary; import java.util.Enumeration; import java.util.HashMap; import java.util.Map; import org.apache.commons.lang.StringUtils; import org.openhab.binding.panasonictv.PanasonicTVBindingConfig; import org.openhab.binding.panasonictv.PanasonicTVBindingProvider; import org.openhab.core.binding.AbstractBinding; import org.openhab.core.library.types.OnOffType; 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 in mainly used for receiving internal command and to send them to * the Panasonic TV. * * @author Andr Heuer * @since 1.7.0 */ public class PanasonicTVBinding extends AbstractBinding<PanasonicTVBindingProvider> implements ManagedService { private Map<String, String> registeredTVs = new HashMap<String, String>(); private static final Logger logger = LoggerFactory.getLogger(PanasonicTVBinding.class); /** * the refresh interval which is used to poll values from the PanansonicTV * server (optional, defaults to 60000ms) */ private long refreshInterval = 60000; /** * Listening port of the TV */ private final int tvPort = 55000; public PanasonicTVBinding() { } public void activate() { } public void deactivate() { } /** * @{inheritDoc */ @Override protected void internalReceiveCommand(String itemName, Command command) { logger.debug("internalReceiveCommand() for item: " + itemName + " with command: " + command.toString()); if (this.providers.isEmpty()) { logger.error("Binding is properly configured or loaded. No provider was found."); return; } for (PanasonicTVBindingProvider provider : this.providers) { PanasonicTVBindingConfig config = provider.getBindingConfigForItem(itemName); if (config == null) continue; int response = sendCommand(config); if (response != 200) { logger.warn("Command " + config.getCommand() + " to TV with IP " + registeredTVs.get(config.getTv()) + " failed with HTTP Reponse Code " + response); continue; } eventPublisher.postUpdate(itemName, OnOffType.OFF); } } /** * @{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); } for (Enumeration<?> e = config.keys(); e.hasMoreElements();) { String tv = (String) e.nextElement(); if (tv.equalsIgnoreCase("service.pid") || tv.equalsIgnoreCase("refresh")) { continue; } logger.info("TV registered '" + tv + "' with IP '" + config.get(tv) + "'"); registeredTVs.put(tv, config.get(tv).toString()); } if (registeredTVs.isEmpty()) { logger.debug("No TV was registered in config file"); } } } /** * This methods sends the command to the TV * * @return HTTP response code from the TV (should be 200) */ private int sendCommand(PanasonicTVBindingConfig config) { String command = config.getCommand().toUpperCase(); final String soaprequest_skeleton = "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\">" + "<s:Body><u:X_SendKey xmlns:u=\"urn:panasonic-com:service:p00NetworkControl:1\">" + "<X_KeyEvent>NRC_%s</X_KeyEvent></u:X_SendKey></s:Body></s:Envelope>\r"; String soaprequest = ""; if (config.getCommand().toUpperCase().startsWith("HDMI")) { soaprequest = String.format(soaprequest_skeleton, command); } else { soaprequest = String.format(soaprequest_skeleton, command + "-ONOFF"); } String tvIp = registeredTVs.get(config.getTv()); if ((tvIp == null) || tvIp.isEmpty()) { return 0; } try { Socket client = new Socket(tvIp, tvPort); BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(client.getOutputStream(), "UTF8")); String header = "POST /nrc/control_0/ HTTP/1.1\r\n"; header = header + "Host: " + tvIp + ":" + tvPort + "\r\n"; header = header + "SOAPACTION: \"urn:panasonic-com:service:p00NetworkControl:1#X_SendKey\"\r\n"; header = header + "Content-Type: text/xml; charset=\"utf-8\"\r\n"; header = header + "Content-Length: " + soaprequest.length() + "\r\n"; header = header + "\r\n"; String request = header + soaprequest; logger.debug("Request send to TV with IP " + tvIp + ": " + request); wr.write(header); wr.write(soaprequest); wr.flush(); InputStream inFromServer = client.getInputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(inFromServer)); String response = reader.readLine(); client.close(); logger.debug("TV Response from " + tvIp + ": " + response); return Integer.parseInt(response.split(" ")[1]); } catch (IOException e) { logger.error("Exception during communication to the TV: " + e.getStackTrace()); } catch (Exception e) { logger.error("Exception in binding during execution of command: " + e.getStackTrace()); } return 0; } }