Java tutorial
/******************************************************************************* * Copyright (c) 2013-2015 Sierra Wireless and others. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * and Eclipse Distribution License v1.0 which accompany this distribution. * * The Eclipse Public License is available at * http://www.eclipse.org/legal/epl-v10.html * and the Eclipse Distribution License is available at * http://www.eclipse.org/org/documents/edl-v10.html. * * Contributors: * Zebra Technologies - initial API and implementation * Sierra Wireless, - initial API and implementation * Bosch Software Innovations GmbH, - initial API and implementation *******************************************************************************/ package org.eclipse.leshan.client.demo; import static org.eclipse.leshan.LwM2mId.*; import static org.eclipse.leshan.client.object.Security.*; import java.net.InetAddress; import java.net.UnknownHostException; import java.util.List; import java.util.Scanner; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.DefaultParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.eclipse.leshan.client.californium.LeshanClient; import org.eclipse.leshan.client.californium.LeshanClientBuilder; import org.eclipse.leshan.client.object.Server; import org.eclipse.leshan.client.resource.LwM2mObjectEnabler; import org.eclipse.leshan.client.resource.ObjectsInitializer; import org.eclipse.leshan.core.request.BindingMode; import org.eclipse.leshan.util.Hex; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class LeshanClientDemo { private static final Logger LOG = LoggerFactory.getLogger(LeshanClientDemo.class); // private static final int OBJECT_ID_TEMPERATURE_SENSOR = 3303; private static final int OBJECT_ID_SECURITY_CAM = 3300; private final static String DEFAULT_ENDPOINT = "LeshanClientDemo"; private final static String USAGE = "java -jar leshan-client-demo.jar [OPTION]"; private static MyLocation locationInstance; public static void main(final String[] args) { // Define options for command line tools Options options = new Options(); options.addOption("h", "help", false, "Display help information."); options.addOption("n", true, String.format("Set the endpoint name of the Client.\nDefault: the local hostname or '%s' if any.", DEFAULT_ENDPOINT)); options.addOption("b", false, "If present use bootstrap."); options.addOption("lh", true, "Set the local CoAP address of the Client.\n Default: any local address."); options.addOption("lp", true, "Set the local CoAP port of the Client.\n Default: A valid port value is between 0 and 65535."); options.addOption("slh", true, "Set the secure local CoAP address of the Client.\nDefault: any local address."); options.addOption("slp", true, "Set the secure local CoAP port of the Client.\nDefault: A valid port value is between 0 and 65535."); options.addOption("u", true, "Set the LWM2M or Bootstrap server URL.\nDefault: localhost:5683."); options.addOption("i", true, "Set the LWM2M or Bootstrap server PSK identity in ascii.\nUse none secure mode if not set."); options.addOption("p", true, "Set the LWM2M or Bootstrap server Pre-Shared-Key in hexa.\nUse none secure mode if not set."); options.addOption("pos", true, "Set the initial location (latitude, longitude) of the device to be reported by the Location object. Format: lat_float:long_float"); options.addOption("sf", true, "Scale factor to apply when shifting position. Default is 1.0."); HelpFormatter formatter = new HelpFormatter(); formatter.setOptionComparator(null); // Parse arguments CommandLine cl = null; try { cl = new DefaultParser().parse(options, args); } catch (ParseException e) { System.err.println("Parsing failed. Reason: " + e.getMessage()); formatter.printHelp(USAGE, options); return; } // Print help if (cl.hasOption("help")) { formatter.printHelp(USAGE, options); return; } // Abort if unexpected options if (cl.getArgs().length > 0) { System.err.println("Unexpected option or arguments : " + cl.getArgList()); formatter.printHelp(USAGE, options); return; } // Abort if we have not identity and key for psk. if ((cl.hasOption("i") && !cl.hasOption("p")) || !cl.hasOption("i") && cl.hasOption("p")) { System.err.println("You should precise identity and Pre-Shared-Key if you want to connect in PSK"); formatter.printHelp(USAGE, options); return; } // Get endpoint name String endpoint; if (cl.hasOption("n")) { endpoint = cl.getOptionValue("n"); } else { try { endpoint = InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException e) { endpoint = DEFAULT_ENDPOINT; } } // Get server URI String serverURI; if (cl.hasOption("u")) { if (cl.hasOption("i")) serverURI = "coaps://" + cl.getOptionValue("u"); else serverURI = "coap://" + cl.getOptionValue("u"); } else { if (cl.hasOption("i")) serverURI = "coaps://localhost:5684"; else serverURI = "coap://leshan.eclipse.org:5683"; } // get security info byte[] pskIdentity = null; byte[] pskKey = null; if (cl.hasOption("i") && cl.hasOption("p")) { pskIdentity = cl.getOptionValue("i").getBytes(); pskKey = Hex.decodeHex(cl.getOptionValue("p").toCharArray()); } // get local address String localAddress = null; int localPort = 0; if (cl.hasOption("lh")) { localAddress = cl.getOptionValue("lh"); } if (cl.hasOption("lp")) { localPort = Integer.parseInt(cl.getOptionValue("lp")); } // get secure local address String secureLocalAddress = null; int secureLocalPort = 0; if (cl.hasOption("slh")) { secureLocalAddress = cl.getOptionValue("slh"); } if (cl.hasOption("slp")) { secureLocalPort = Integer.parseInt(cl.getOptionValue("slp")); } Float latitude = null; Float longitude = null; Float scaleFactor = 1.0f; // get initial Location if (cl.hasOption("pos")) { try { String pos = cl.getOptionValue("pos"); int colon = pos.indexOf(':'); if (colon == -1 || colon == 0 || colon == pos.length() - 1) { System.err.println( "Position must be a set of two floats separated by a colon, e.g. 48.131:11.459"); formatter.printHelp(USAGE, options); return; } latitude = Float.valueOf(pos.substring(0, colon)); longitude = Float.valueOf(pos.substring(colon + 1)); } catch (NumberFormatException e) { System.err.println("Position must be a set of two floats separated by a colon, e.g. 48.131:11.459"); formatter.printHelp(USAGE, options); return; } } if (cl.hasOption("sf")) { try { scaleFactor = Float.valueOf(cl.getOptionValue("sf")); } catch (NumberFormatException e) { System.err.println("Scale factor must be a float, e.g. 1.0 or 0.01"); formatter.printHelp(USAGE, options); return; } } createAndStartClient(endpoint, localAddress, localPort, secureLocalAddress, secureLocalPort, cl.hasOption("b"), serverURI, pskIdentity, pskKey, latitude, longitude, scaleFactor); } public static void createAndStartClient(String endpoint, String localAddress, int localPort, String secureLocalAddress, int secureLocalPort, boolean needBootstrap, String serverURI, byte[] pskIdentity, byte[] pskKey, Float latitude, Float longitude, float scaleFactor) { locationInstance = new MyLocation(latitude, longitude, scaleFactor); // Initialize object list ObjectsInitializer initializer = new ObjectsInitializer(); if (needBootstrap) { if (pskIdentity == null) initializer.setInstancesForObject(SECURITY, noSecBootstap(serverURI)); else initializer.setInstancesForObject(SECURITY, pskBootstrap(serverURI, pskIdentity, pskKey)); } else { if (pskIdentity == null) { initializer.setInstancesForObject(SECURITY, noSec(serverURI, 123)); initializer.setInstancesForObject(SERVER, new Server(123, 30, BindingMode.U, false)); } else { initializer.setInstancesForObject(SECURITY, psk(serverURI, 123, pskIdentity, pskKey)); initializer.setInstancesForObject(SERVER, new Server(123, 30, BindingMode.U, false)); } } initializer.setClassForObject(DEVICE, MyDevice.class); // Create instances of LWM2M objects // initializer.setInstancesForObject(LOCATION, locationInstance); //initializer.setInstancesForObject(OBJECT_ID_TEMPERATURE_SENSOR, new RandomTemperatureSensor()); initializer.setInstancesForObject(OBJECT_ID_SECURITY_CAM, new MySecurityHub()); // Add objects to enabler list List<LwM2mObjectEnabler> enablers = initializer.create(SECURITY, SERVER, DEVICE, OBJECT_ID_SECURITY_CAM); // Create client LeshanClientBuilder builder = new LeshanClientBuilder(endpoint); builder.setLocalAddress(localAddress, localPort); builder.setLocalSecureAddress(secureLocalAddress, secureLocalPort); builder.setObjects(enablers); final LeshanClient client = builder.build(); LOG.info("Press 'w','a','s','d' to change reported Location ({},{}).", locationInstance.getLatitude(), locationInstance.getLongitude()); // Start the client client.start(); // De-register on shutdown and stop client. Runtime.getRuntime().addShutdownHook(new Thread() { @Override public void run() { client.destroy(true); // send de-registration request before destroy } }); // Change the location through the Console try (Scanner scanner = new Scanner(System.in)) { while (scanner.hasNext()) { String nextMove = scanner.next(); locationInstance.moveLocation(nextMove); } } } }