receiveSQS.java Source code

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Here is the source code for receiveSQS.java

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/*
 * Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
import java.util.Arrays;
import java.util.List;
import java.util.Map.Entry;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.auth.PropertiesCredentials;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.sqs.AmazonSQS;
import com.amazonaws.services.sqs.AmazonSQSClient;
import com.amazonaws.services.sqs.model.CreateQueueRequest;
import com.amazonaws.services.sqs.model.DeleteMessageRequest;
import com.amazonaws.services.sqs.model.DeleteQueueRequest;
import com.amazonaws.services.sqs.model.Message;
import com.amazonaws.services.sqs.model.ReceiveMessageRequest;
import com.amazonaws.services.sqs.model.SendMessageRequest;

/**
 * This sample demonstrates how to make basic requests to Amazon SQS using the
 * AWS SDK for Java.
 * <p>
 * <b>Prerequisites:</b> You must have a valid Amazon Web
 * Services developer account, and be signed up to use Amazon SQS. For more
 * information on Amazon SQS, see http://aws.amazon.com/sqs.
 * <p>
 * WANRNING:</b> To avoid accidental leakage of your credentials, DO NOT keep
 * the credentials file in your source directory.
 */
public class receiveSQS {

    public static void main(String[] args) throws Exception {

        /*
         * The ProfileCredentialsProvider will return your [default]
         * credential profile by reading from the credentials file located at
         * ().
         */

        BasicAWSCredentials credentials = new BasicAWSCredentials("AKIAI2ZCFS3NVEENXW5A",
                "tI/GgpSWDF/QrNVhtCRu1G+PX/10A2nJQH+yTOiv");
        try {
            //          credentials = new ProfileCredentialsProvider("default").getCredentials();
        } catch (Exception e) {
            throw new AmazonClientException("Cannot load the credentials from the credential profiles file. "
                    + "Please make sure that your credentials file is at the correct "
                    + "location (/Users/daniel/.aws/credentials), and is in valid format.", e);
        }

        AmazonSQS sqs = new AmazonSQSClient(credentials);
        Region usWest2 = Region.getRegion(Regions.US_WEST_2);
        sqs.setRegion(usWest2);

        System.out.println("===========================================");
        System.out.println("Getting Started with Amazon SQS");
        System.out.println("===========================================\n");

        try {

            // List queues
            System.out.println("Listing all queues in your account.\n");
            for (String queueUrl : sqs.listQueues().getQueueUrls()) {
                System.out.println("  QueueUrl: " + queueUrl);

                System.out.println();
                // Receive messages
                System.out.println("Receiving messages from MyQueue.\n");
                ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(queueUrl);
                System.out.println("Message size:");

                //*****************************************************

                //For some reason, we only get one message at a time and it does not loop over.

                //*****************************************************

                //ReceiveMessageResponse receiveMessageResponse = amazonSQSClient.ReceiveMessage(receiveMessageRequest);
                List<Message> messages = sqs.receiveMessage(receiveMessageRequest).getMessages();
                for (Message message : messages) {
                    System.out.println("  Message");
                    //System.out.println("    MessageId:     " + message.getMessageId());
                    //System.out.println("    ReceiptHandle: " + message.getReceiptHandle());
                    //System.out.println("    MD5OfBody:     " + message.getMD5OfBody());
                    //System.out.println("    Body:          " + message.getBody());
                    String[] tweetdata = message.getBody().split("\\|\\|");
                    System.out.println(Arrays.toString(tweetdata));
                    System.out.println("Deleting a message.\n");
                    String messageRecieptHandle = messages.get(0).getReceiptHandle();
                    sqs.deleteMessage(new DeleteMessageRequest(queueUrl, messageRecieptHandle));

                }
            }

            System.out.println();
            /*
                        // Delete a message
                
                        // Delete a queue
                        System.out.println("Deleting the test queue.\n");
                        sqs.deleteQueue(new DeleteQueueRequest(myQueueUrl));   
              */
        } catch (AmazonServiceException ase) {
            System.out.println("Caught an AmazonServiceException, which means your request made it "
                    + "to Amazon SQS, but was rejected with an error response for some reason.");
            System.out.println("Error Message:    " + ase.getMessage());
            System.out.println("HTTP Status Code: " + ase.getStatusCode());
            System.out.println("AWS Error Code:   " + ase.getErrorCode());
            System.out.println("Error Type:       " + ase.getErrorType());
            System.out.println("Request ID:       " + ase.getRequestId());
        } catch (AmazonClientException ace) {
            System.out.println("Caught an AmazonClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with SQS, such as not "
                    + "being able to access the network.");
            System.out.println("Error Message: " + ace.getMessage());
        }
    }
}