test1.SimpleQueueServiceSample.java Source code

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Here is the source code for test1.SimpleQueueServiceSample.java

Source

package test1;

/*
 * 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.ArrayList;
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.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;

public class SimpleQueueServiceSample {
    public static AmazonSQS init() {
        AWSCredentials credentials = null;
        try {
            credentials = new ProfileCredentialsProvider("default").getCredentials();
        } catch (Exception e) {
            throw new AmazonClientException(e);
        }

        AmazonSQS sqs = new AmazonSQSClient(credentials);
        Region usEast1 = Region.getRegion(Regions.US_EAST_1);
        sqs.setRegion(usEast1);
        return sqs;
    }

    public static String createQueue(AmazonSQS sqs) throws Exception {
        System.out.println("Creating a new SQS queue called MyQueue.\n");
        CreateQueueRequest createQueueRequest = new CreateQueueRequest("MyQueue");
        String myQueueUrl = sqs.createQueue(createQueueRequest).getQueueUrl();
        return myQueueUrl;
    }

    public static List<Message> receive(AmazonSQS sqs, String myQueueUrl) throws Exception {
        ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(myQueueUrl);
        List<Message> messages = sqs.receiveMessage(receiveMessageRequest).getMessages();
        for (Message message : messages)
            SimpleQueueServiceSample.deleteMessage(sqs, myQueueUrl, message);
        return messages;
    }

    public static void deleteMessage(AmazonSQS sqs, String myQueueUrl, Message messages) throws Exception {

        String messageRecieptHandle = messages.getReceiptHandle();
        sqs.deleteMessage(new DeleteMessageRequest(myQueueUrl, messageRecieptHandle));

    }

    public static void getMessage(String msg, AmazonSQS sqs, String myQueueUrl) {
        try {
            sqs.sendMessage(new SendMessageRequest(myQueueUrl, msg));

        } 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());
        }
    }

}