app.SQSMessage.java Source code

Introduction

Here is the source code for app.SQSMessage.java

Source

package app;

/*
 * 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 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.GetQueueUrlRequest;
import com.amazonaws.services.sqs.model.GetQueueUrlResult;
import com.amazonaws.services.sqs.model.SendMessageRequest;
import org.json.simple.JSONObject;

/**
 * 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 SQSMessage {

    //   private final String SQS_QUEUE_NAME = "awseb-e-mef7mxrp3d-stack-AWSEBWorkerQueue-155D75HFVOD2Q";

    //   public  String q_url="https://sqs.us-east-1.amazonaws.com/658627661614/awseb-e-mef7mxrp3d-stack-AWSEBWorkerQueue-155D75HFVOD2Q";

    private final String SQS_QUEUE_NAME = "Twitts";
    //   
    public String q_url = "https://sqs.us-east-1.amazonaws.com/658627661614/Twitts";
    //   

    AWSCredentials credentials = null;

    public void sendmsg(Tweet t, String keyword) throws Exception {

        /*
         * The ProfileCredentialsProvider will return your [default]
         * credential profile by reading from the credentials file located at
         * ().
         */
        credentials = new ProfileCredentialsProvider("default").getCredentials();
        AmazonSQS sqs = new AmazonSQSClient(credentials);
        Region usWest2 = Region.getRegion(Regions.US_EAST_1);
        sqs.setRegion(usWest2);

        System.out.println("===========================================");
        System.out.println("sending tweet to Queue");
        System.out.println("===========================================\n");

        try {

            // Send a message
            System.out.println("Sending a message to TweetQueue.\n");

            JSONObject obj = new JSONObject();

            obj.put("userId", t.getUserId() + "");
            obj.put("lng", t.getLongitude() + "");
            obj.put("lat", t.getLatitude() + "");
            obj.put("text", t.getText());
            // obj.put("time", t.getCreatedTime().toString());
            obj.put("kwd", keyword);

            //String TwtJson = "{\"userId\":\"" + t.getUserId() + "\",\"lng\":\"" + t.getLongitude() + "\",\"lat\":\"" + t.getLatitude() + "\",\"text\":\"" + JSONObject.escape(t.getText()) +  "\",\"time\":\"" + t.getCreatedTime() + "\",\"kwd\":\"" + keyword + "\"}";

            String TwtJson = obj.toString();

            System.out.println(TwtJson);
            sqs.sendMessage(new SendMessageRequest(q_url, TwtJson));

        } 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());
        }
    }
}