| Re: [cf-dev] transfer of large files |
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Hello Julien! Thank you for your reply.
The problem occurred always when I tried to transfer the large file of 130MB. Currently, I do not have a unit test for that, but in order to reproduce this behavior just follow these steps:
1) add a new resource within the HelloWorldServer.java: add(new HelloWorldResource(), new FileResource("fileResource", "file.dat")); 2) For the needed FileResource.java use: import java.nio.file.FileSystems; import java.nio.file.Files; import java.nio.file.Path; import org.codehaus.plexus.util.StringUtils; public class FileResource extends CoapResource { private String fileName = "file.dat"; public FileResource(String resourceName, String fileName) { // set resource identifier super(resourceName); this.fileName = fileName; // set display name getAttributes().setTitle("File Resource"); } @Override public void handleGET(CoapExchange exchange) { // respond to the request Path p = FileSystems.getDefault().getPath("C:\\path\\to", fileName); byte[] fileData = null; try { fileData = Files.readAllBytes(p); } catch (IOException e) { System.out.println(StringUtils.join(e.getStackTrace(), "\n")); return; } String string = null; try { string = new String(fileData, "UTF-8"); } catch (UnsupportedEncodingException e) { System.out.println(StringUtils.join(e.getStackTrace(), "\n")); return; } System.out.println("Sending to client."); // exchange.respond(string); exchange.respond(ResponseCode.CONTENT, fileData); } } 3) The file “file.dat“ is some large text document that I simply created with an editor using copy&paste exponentially
J
4) Start the HelloWorldServer 5) Start the GETClient with the argument: “coap://localhost/fileResource” Greetings, Helge Von: cf-dev-bounces@xxxxxxxxxxx [mailto:cf-dev-bounces@xxxxxxxxxxx]
Im Auftrag von Julien Vermillard Wow 130MB is a lot for CoAP, I wonder if it was ever tested.. It's failing 100% of time? Can you provide detailed debug logs or a JUnit test so we can try to reproduce it? Julien _______________________________________________ |