Read the REST Response Body in Chunks

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Demonstrates Rest.ReadRespChunkBd, which reads the response body one chunk at a time, appending each chunk to a BinData. A return value of 0 signals the body is complete, while -1 indicates a read failure.

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    CkRest rest = new CkRest();
    boolean bTls = true;
    boolean bAutoReconnect = true;
    success = rest.Connect("example.com",443,bTls,bAutoReconnect);
    if (success == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    success = rest.SendReqNoBody("GET","/api/largefile");
    if (success == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    int statusCode = rest.ReadResponseHeader();
    if (statusCode < 0) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    //  Check for the expected success status code.  If the response is not 200, the body is likely
    //  error text formatted as JSON, XML, or HTML rather than the expected content.  In that case read
    //  the body as text, report it, and return.
    if (statusCode != 200) {
        CkStringBuilder sbError = new CkStringBuilder();
        success = rest.ReadRespSb(sbError);
        if (success == false) {
            Log.i(TAG, rest.lastErrorText());
            return;
            }

        Log.i(TAG, "Request failed with status code " + String.valueOf(statusCode));
        Log.i(TAG, sbError.getAsString());
        return;
        }

    //  The status code is 200.  Read the response body in chunks, appending each chunk to the BinData.
    //  Each call waits until at least the requested number of bytes is available, unless the response
    //  ends first.  A return value of 0 means the final bytes were returned and the body is complete;
    //  -1 indicates a read failure.
    CkBinData bdBody = new CkBinData();
    int chunkResult = rest.ReadRespChunkBd(8192,bdBody);
    while (chunkResult > 0) {
        chunkResult = rest.ReadRespChunkBd(8192,bdBody);
        }

    if (chunkResult < 0) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    Log.i(TAG, "Received " + String.valueOf(bdBody.get_NumBytes()) + " bytes.");

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}