Java tutorial
package Server.aws.yulei; /* * 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.io.StringWriter; import java.util.List; import java.util.Map.Entry; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import org.w3c.dom.Document; import com.alchemyapi.api.AlchemyAPI; 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; /** * 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 SQSOperation { //Test /*public static void main(String[] args) throws Exception { * The ProfileCredentialsProvider will return your [default] * credential profile by reading from the credentials file located at * (). AWSCredentials credentials = null; 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 { // Create a queue System.out.println("Creating a new SQS queue called MyQueue.\n"); CreateQueueRequest createQueueRequest = new CreateQueueRequest("MyQueue"); String myQueueUrl = sqs.createQueue(createQueueRequest).getQueueUrl(); // 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(); // Send a message System.out.println("Sending a message to MyQueue.\n"); sqs.sendMessage(new SendMessageRequest(myQueueUrl, "This is my message text.")); // Receive messages System.out.println("Receiving messages from MyQueue.\n"); ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(myQueueUrl); 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()); for (Entry<String, String> entry : message.getAttributes().entrySet()) { System.out.println(" Attribute"); System.out.println(" Name: " + entry.getKey()); System.out.println(" Value: " + entry.getValue()); } } System.out.println(); // Delete a message System.out.println("Deleting a message.\n"); String messageRecieptHandle = messages.get(0).getReceiptHandle(); sqs.deleteMessage(new DeleteMessageRequest(myQueueUrl, messageRecieptHandle)); // 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()); } }*/ public static void sendSQS(String message) { AWSCredentials credentials = null; 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_EAST_1); sqs.setRegion(usWest2); System.out.println("==========================================="); System.out.println("Getting Started with Amazon SQS"); System.out.println("===========================================\n"); try { // Create a queue System.out.println("Creating a new SQS queue called MyQueue.\n"); //CreateQueueRequest createQueueRequest = new CreateQueueRequest("MyQueue"); String myQueueUrl = "https://sqs.us-east-1.amazonaws.com/659322195879/MyQueue"; // 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(); // Send a message System.out.println("Sending a message to MyQueue----\n"); sqs.sendMessage(new SendMessageRequest(myQueueUrl, message)); } catch (Exception e) { Thread.currentThread().interrupt(); } } public static void receiveSQS() { AWSCredentials credentials = null; 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_EAST_1); sqs.setRegion(usWest2); System.out.println("==========================================="); System.out.println("Getting Started with Amazon SQS"); System.out.println("===========================================\n"); try { // Create a queue System.out.println("Creating a new SQS queue called MyQueue.\n"); //CreateQueueRequest createQueueRequest = new CreateQueueRequest("MyQueue"); String myQueueUrl = "https://sqs.us-east-1.amazonaws.com/659322195879/MyQueue"; // List queues System.out.println("Receiving messages from MyQueue.\n"); ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(myQueueUrl); List<Message> messages = sqs.receiveMessage(receiveMessageRequest).getMessages(); for (Message message : messages) { String realData = message.getBody(); AlchemyAPI alchemyObj = AlchemyAPI .GetInstanceFromString("a47635756e657c0dac0bc2d282dbde377de01513"); JSONParser parser = new JSONParser(); JSONObject decodeObj = (JSONObject) parser.parse(realData); String content = (String) decodeObj.get("content"); // load text String text = content; // analyze text Document doc = alchemyObj.TextGetTextSentiment(text); String score = "0.00000"; // parse XML result // String sentiment = doc.getElementsByTagName("type").item(0).getTextContent(); // score = doc.getElementsByTagName("score").item(0).getTextContent(); decodeObj.put("score", score); decodeObj.put("sentiment", "Positive"); StringWriter sw = new StringWriter(); decodeObj.writeJSONString(sw); String jsonText = sw.toString(); SNSPushToGCM.push(jsonText); } } catch (Exception e) { Thread.currentThread().interrupt(); } } }