Java tutorial
/** * * Copyright (c) 2009-2016 Freedomotic team http://freedomotic.com * * This file is part of Freedomotic * * This Program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation; either version 2, or (at your option) any later version. * * This Program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * Freedomotic; see the file COPYING. If not, see * <http://www.gnu.org/licenses/>. */ package com.freedomotic.plugins.devices.tcw122bcm; import com.freedomotic.api.EventTemplate; import com.freedomotic.api.Protocol; import com.freedomotic.app.Freedomotic; import com.freedomotic.events.ProtocolRead; import com.freedomotic.exceptions.UnableToExecuteException; import com.freedomotic.reactions.Command; import java.io.*; import java.net.*; import java.util.*; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.commons.codec.binary.Base64; public class Tcw122bcm extends Protocol { private static final Logger LOG = Logger.getLogger(Tcw122bcm.class.getName()); Map<String, Board> devices = new HashMap<String, Board>(); private static int BOARD_NUMBER = 1; private static int POLLING_TIME = 1000; private Socket socket = null; private DataOutputStream outputStream = null; private BufferedReader inputStream = null; private String[] address = null; private int SOCKET_TIMEOUT = configuration.getIntProperty("socket-timeout", 1000); private int SNMP_PORT = configuration.getIntProperty("snmp-port", 161); private String SNMP_COMMUNITY = configuration.getStringProperty("snmp-community", "public"); private String SNMP_OID = configuration.getStringProperty("snmp-oid", "1.3.6.1.4.38783"); private String D1_VALUE = configuration.getStringProperty("digital-input1-value", "3.1.0"); private String D2_VALUE = configuration.getStringProperty("digital-input2-value", "3.2.0"); private String R1_STATE = configuration.getStringProperty("r1", "3.3.0"); private String R2_STATE = configuration.getStringProperty("r2", "3.5.0"); private String A1_VALUE = configuration.getStringProperty("analog-input1-value", "3.7.0"); private String A2_VALUE = configuration.getStringProperty("analog2-input2-value", "3.8.0"); private String T1_VALUE = configuration.getStringProperty("temperature1-value", "3.9.0"); private String T2_VALUE = configuration.getStringProperty("temperature2-value", "3.10.0"); private String H1_VALUE = configuration.getStringProperty("humidity1-value", "3.11.0"); private String H2_VALUE = configuration.getStringProperty("humidity2-value", "3.12.0"); private String HTTP_AUTHENTICATION = configuration.getStringProperty("http-authentication", "true"); private String USERNAME = configuration.getStringProperty("username", "admin"); private String PASSWORD = configuration.getStringProperty("password", "admin"); /** * Initializations */ public Tcw122bcm() { super("TCW122B-CM", "/tcw122bcm/tcw122bcm-manifest.xml"); setPollingWait(POLLING_TIME); } // load boards data from file manifest tcw122bcm.xml private void loadBoards() { if (devices == null) { devices = new HashMap<String, Board>(); } setDescription("Reading status changes from"); //empty description for (int i = 0; i < BOARD_NUMBER; i++) { String ipToQuery; String alias; String relayObjectTemplate; String temperatureObjectTemplate; String humidityObjectTemplate; int portNumber; alias = configuration.getTuples().getStringProperty(i, "alias", "default"); relayObjectTemplate = configuration.getTuples().getStringProperty(i, "relay-template", "light"); temperatureObjectTemplate = configuration.getTuples().getStringProperty(i, "temperature-template", "thermostat"); humidityObjectTemplate = configuration.getTuples().getStringProperty(i, "relay-humidity", "hygrometer"); ipToQuery = configuration.getTuples().getStringProperty(i, "ip-to-query", "192.168.1.201"); portNumber = configuration.getTuples().getIntProperty(i, "port-number", 80); Board board = new Board(alias, ipToQuery, portNumber, "2000", "2000", "2000", "2000", "2000", "2000", "2000", "2000", "2000", "2000", relayObjectTemplate, temperatureObjectTemplate, humidityObjectTemplate); devices.put(alias, board); setDescription(getDescription() + " " + ipToQuery); } } /* * Sensor side */ @Override public void onStart() { POLLING_TIME = configuration.getIntProperty("polling-time", 1000); // number of configured boards in manifest file BOARD_NUMBER = configuration.getTuples().size(); setPollingWait(POLLING_TIME); loadBoards(); } @Override public void onStop() { //release resources devices.clear(); devices = null; setPollingWait(-1); //disable polling //display the default description setDescription(configuration.getStringProperty("description", "TCW122B-CM")); } @Override protected void onRun() { Set keys = devices.keySet(); Iterator keyIter = keys.iterator(); while (keyIter.hasNext()) { String alias = (String) keyIter.next(); Board board = (Board) devices.get(alias); evaluateDiff(board); } try { Thread.sleep(POLLING_TIME); } catch (InterruptedException ex) { Logger.getLogger(Tcw122bcm.class.getName()).log(Level.SEVERE, null, ex); } } // } private void sendEvent(String objectAddress, String eventProperty, String eventValue, String objectTemplate) { ProtocolRead event = new ProtocolRead(this, "tcw122bcm", objectAddress); event.addProperty(eventProperty, eventValue); //publish the event on the messaging bus this.notifyEvent(event); } // this method sends a Freedomotic event only if there is any change in input values or relays // @param board // board object to evaluate // @return // no value private void evaluateDiff(Board board) { //String address = board.getIpAddress() + ":" + board.getPortNumber(); //String address = board.getAlias(); String value = null; MYSNMP snmpRequest = new MYSNMP(); //temperature1 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + T1_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getTemperature1())) { sendEvent(address + ":T1", "sensor.temperature", value, board.getTemperatureObjectTemplate()); board.setTemperature1(value); } //temperature2 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + T2_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getTemperature2())) { sendEvent(address + ":T2", "sensor.temperature", value, board.getTemperatureObjectTemplate()); board.setTemperature2(value); } //humidity1 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + H1_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getHumidity1())) { sendEvent(address + ":H1", "sensor.humidity", value, board.getHumidityObjectTemplate()); board.setHumidity1(value); } //humidity2 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + H2_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getHumidity2())) { sendEvent(address + ":H2", "sensor.humidity", value, board.getHumidityObjectTemplate()); board.setHumidity2(value); } //digital input 1 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + D1_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getDigitalInput1())) { sendEvent(address + ":D1", "digital.input.value", value, "default"); board.setDigitalInput1(value); } //digital input 2 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + D2_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getDigitalInput2())) { sendEvent(address + ":D2", "digital.input.value", value, "default"); board.setDigitalInput2(value); } //analog input 1 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + A1_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getAnalogInput1())) { sendEvent(address + ":A1", "analog.input.value", value, "default"); board.setAnalogInput1(value); } //analog input 2 value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + A2_VALUE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getAnalogInput2())) { sendEvent(address + ":A2", "analog.input.value", value, "default"); board.setAnalogInput2(value); } //relay1 state value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + R1_STATE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getRelay1())) { sendEvent(address + ":R1", "relay.state", value, board.getRelayObjectTemplate()); board.setRelay1(value); } //relay2 state value = snmpRequest.SNMP_GET(board.getIpAddress(), SNMP_PORT, SNMP_OID + "." + R2_STATE, SNMP_COMMUNITY); if (!value.equalsIgnoreCase(board.getRelay2())) { sendEvent(address + ":R2", "relay.state", value, board.getRelayObjectTemplate()); board.setRelay2(value); } } /** * Actuator side */ @Override public void onCommand(Command c) throws UnableToExecuteException { String delimiter = configuration.getProperty("address-delimiter"); Integer control = 0; address = c.getProperty("address").split(delimiter); //retrieve the board handle from alias key Board board = (Board) devices.get(address[0]); String hostname = board.getIpAddress(); int hostport = board.getPortNumber(); String relay = address[1].toLowerCase(); //convert control if (c.getProperty("control").equalsIgnoreCase("ON")) { control = 1; } if (c.getProperty("control").equalsIgnoreCase("OFF")) { control = 0; } // call the method for changing relay status changeRelayStatus(hostname, hostport, relay, control); } // This method changes the relay status using http commands // If set in the configuration file it uses the http authentication // @param hostname // TCW122B-CM ip address // @param hostport // TCW122B-CM tcp port (default value 80) // @param relayNumber // relay number - allowed values 1,2 // @param control // action to perform - allowed value 0 (off), 1 (on) // @return // no value private void changeRelayStatus(String hostname, int hostport, String relayNumber, int control) { try { String authString = USERNAME + ":" + PASSWORD; //System.out.println("auth string: " + authString); byte[] authEncBytes = Base64.encodeBase64(authString.getBytes()); String authStringEnc = new String(authEncBytes); //System.out.println("Base64 encoded auth string: " + authStringEnc); //FOR DEBUG //Create a URL for the desired page URL url = new URL("http://" + hostname + ":" + hostport + "/?" + relayNumber + "=" + control); LOG.info("Freedomotic sends the command " + url); URLConnection urlConnection = url.openConnection(); // if required set the authentication if (HTTP_AUTHENTICATION.equalsIgnoreCase("true")) { urlConnection.setRequestProperty("Authorization", "Basic " + authStringEnc); } InputStream is = urlConnection.getInputStream(); InputStreamReader isr = new InputStreamReader(is); int numCharsRead; char[] charArray = new char[1024]; StringBuffer sb = new StringBuffer(); while ((numCharsRead = isr.read(charArray)) > 0) { sb.append(charArray, 0, numCharsRead); } String result = sb.toString(); } catch (MalformedURLException e) { LOG.severe("Change relay status malformed URL " + e.toString()); } catch (IOException e) { LOG.severe("Change relay status IOexception" + e.toString()); } } @Override protected boolean canExecute(Command c) { throw new UnsupportedOperationException("Not supported yet."); } @Override protected void onEvent(EventTemplate event) { throw new UnsupportedOperationException("Not supported yet."); } public static Object getKeyFromValue(Map hm, Object value) { for (Object o : hm.keySet()) { if (hm.get(o).equals(value)) { return o; } } return null; } }