Java

Example: Http.ResumeDownload method

Demonstrates the ResumeDownload method. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkHttp http = new CkHttp();
    http.put_KeepResponseBody(true);

    //  To demonstrate resuming a download, we've created a file on the chilkatsoft.com
    //  web server that contains the first 82,379 bytes of the full  279,658 bytes of the hamlet.xml file.

    //  We'll first download the partial file, and pretend it was a previous incomplete attempt to download the entire file.
    String localFilePath = "c:/temp/qa_output/hamlet.xml";
    success = http.Download("https://www.chilkatsoft.com/testData/hamlet_partial.xml",localFilePath);
    if (success == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    //  Download the remainder of hamlet.xml.
    success = http.ResumeDownload("https://www.chilkatsoft.com/testData/hamlet.xml",localFilePath);
    int statusCode = http.get_LastStatus();
    if (success == false) {
        if (statusCode == 0) {
            //  Unable to either send the request or get the response.
            System.out.println(http.lastErrorText());
            }
        else {
            //  We got a response, but the status code was not in the 200s
            System.out.println("Response status code: " + statusCode);
            //  Examine the response body.
            System.out.println("Response body:");
            System.out.println(http.lastResponseBody());
            }

        System.out.println("Download failed.");

        }
    else {
        System.out.println("Download success, response status = " + statusCode);
        }

    //  The hamlet.xml file should be 279,658 bytes
    CkFileAccess fac = new CkFileAccess();
    System.out.println("size of hamlet.xml: " + fac.FileSize(localFilePath));

    System.out.println("Success.");
  }
}