/*******************************************************************************
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Californium (Cf) CoAP framework.
******************************************************************************/
package ch.ethz.inf.vs.californium.examples;
import java.net.URI;
import java.net.URISyntaxException;
import ch.ethz.inf.vs.californium.coap.Request;
import ch.ethz.inf.vs.californium.coap.Response;
public class GETClient {
/*
* Application entry point.
*
*/
public static void main(String args[]) {
URI uri = null; // URI parameter of the request
if (args.length > 0) {
// input URI from command line arguments
try {
uri = new URI(args[0]);
} catch (URISyntaxException e) {
System.err.println("Invalid URI: " + e.getMessage());
System.exit(-1);
}
// create new request
Request request = Request.newGet();
// specify URI of target endpoint
request.setURI(uri);
request.send();
// receive response
try {
Response response = request.waitForResponse(1000);
if (response != null) {
// response received, output a pretty-print
System.out.println(response);
} else {
System.out.println("No response received.");
}
} catch (InterruptedException e) {
System.err.println("Receiving of response interrupted: " + e.getMessage());
System.exit(-1);
}
} else {
// display help
System.out.println("Californium (Cf) GET Client");
System.out.println("(c) 2014, Institute for Pervasive Computing, ETH Zurich");
System.out.println();
System.out.println("Usage: " + GETClient.class.getSimpleName() + " URI");
System.out.println(" URI: The CoAP URI of the remote resource to GET");
}
}
}