Android™
SQS Receive Message

Retrieves one or more messages from an Amazon SQS queue, with a maximum limit of 10 messages, from the specified queue.
See SQS ReceiveMessage or detailed information.
Chilkat Android™ Downloads

Android™
// 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;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest = new CkRest();

    // Connect to the Amazon AWS REST server.
    // such as https://sqs.us-west-2.amazonaws.com/
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    success = rest.Connect("sqs.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    // the region should match our URL above..
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("sqs");

    rest.SetAuthAws(authAws);

    rest.AddQueryParam("Action","ReceiveMessage");
    rest.AddQueryParam("MaxNumberOfMessages","5");
    rest.AddQueryParam("VisibilityTimeout","15");
    rest.AddQueryParam("AttributeName","All");
    rest.AddQueryParam("MessageAttributeName","All");

    // Use the actual path part of your SQS queue URL here:
    String responseXml = rest.fullRequestNoBody("GET","/123456789123/chilkatTest");
    if (rest.get_LastMethodSuccess() != true) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    // A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        Log.i(TAG, "response status code = " + String.valueOf(rest.get_ResponseStatusCode()));
        Log.i(TAG, "response status text = " + rest.responseStatusText());
        Log.i(TAG, "response header: " + rest.responseHeader());
        Log.i(TAG, "response body: " + responseXml);
        return;
        }

    // Examine the successful XML response.
    CkXml xml = new CkXml();
    xml.LoadXml(responseXml);
    Log.i(TAG, xml.getXml());
    Log.i(TAG, "----");

    // A successful response looks like this:
    // <?xml version="1.0" encoding="utf-8" ?>
    // <ReceiveMessageResponse xmlns="http://queue.amazonaws.com/doc/2012-11-05/">
    //     <ReceiveMessageResult>
    //         <Message>
    //             <Body>this is a test</Body>
    //             <MD5OfBody>54b0c58c7ce9f2a8b551351102ee0938</MD5OfBody>
    //             <ReceiptHandle>AQEBMyLof...UbKBTvHtEg==</ReceiptHandle>
    //             <Attribute>
    //                 <Name>SenderId</Name>
    //                 <Value>957491831129</Value>
    //             </Attribute>
    //             <Attribute>
    //                 <Name>ApproximateFirstReceiveTimestamp</Name>
    //                 <Value>1475013283557</Value>
    //             </Attribute>
    //             <Attribute>
    //                 <Name>ApproximateReceiveCount</Name>
    //                 <Value>4</Value>
    //             </Attribute>
    //             <Attribute>
    //                 <Name>SentTimestamp</Name>
    //                 <Value>1475013283557</Value>
    //             </Attribute>
    //             <MessageId>52882c65-5e21-4450-9024-93a3b01e61d3</MessageId>
    //             <MD5OfMessageAttributes>2ff68603f4239272bd03f543254ed040</MD5OfMessageAttributes>
    //         </Message>
    //     </ReceiveMessageResult>
    //     <ResponseMetadata>
    //         <RequestId>05ba5c92-80ee-5f87-be76-0cf67b7475d6</RequestId>
    //     </ResponseMetadata>
    // </ReceiveMessageResponse>

    // Get some values from the XML:
    Log.i(TAG, "Body: " + xml.chilkatPath("ReceiveMessageResult|Message|Body|*"));
    Log.i(TAG, "MessageId: " + xml.chilkatPath("ReceiveMessageResult|Message|MessageId|*"));

    String unused = xml.chilkatPath("ReceiveMessageResult|Message[0]|Attribute|$");

    CkXml rec = xml.FindNextRecord("Name","SenderId");
    Log.i(TAG, "SenderId: " + rec.getChildContent("Value"));

    rec = xml.FindNextRecord("Name","ApproximateFirstReceiveTimestamp");
    Log.i(TAG, "ApproximateFirstReceiveTimestamp: " + rec.getChildContent("Value"));

    rec = xml.FindNextRecord("Name","ApproximateReceiveCount");
    Log.i(TAG, "ApproximateReceiveCount: " + rec.getChildContent("Value"));

    rec = xml.FindNextRecord("Name","SentTimestamp");
    Log.i(TAG, "SentTimestamp: " + rec.getChildContent("Value"));

    xml.GetRoot2();

  }

  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."
  }
}