示例演练 1：为存储桶配置通知 (消息目标：SNS 主题和 SQS 队列)

// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-s3-developer-guide/blob/master/LICENSE-SAMPLECODE.)

using Amazon.S3;
using Amazon.S3.Model;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace Amazon.DocSamples.S3
{
    class EnableNotificationsTest
    {
        private const string bucketName = "*** bucket name ***";
        private const string snsTopic = "*** SNS topic ARN ***";
        private const string sqsQueue = "*** SQS topic ARN ***";
        // Specify your bucket region (an example region is shown).
        private static readonly RegionEndpoint bucketRegion = RegionEndpoint.USWest2;
        private static IAmazonS3 client;

        public static void Main()
        {
            client = new AmazonS3Client(bucketRegion);
            EnableNotificationAsync().Wait();
        }

        static async Task EnableNotificationAsync()
        {
            try
            {
                PutBucketNotificationRequest request = new PutBucketNotificationRequest
                {
                    BucketName = bucketName
                };

                TopicConfiguration c = new TopicConfiguration
                {
                    Events = new List<EventType> { EventType.ObjectCreatedCopy },
                    Topic = snsTopic
                };
                request.TopicConfigurations = new List<TopicConfiguration>();
                request.TopicConfigurations.Add(c);
                request.QueueConfigurations = new List<QueueConfiguration>();
                request.QueueConfigurations.Add(new QueueConfiguration()
                {
                    Events = new List<EventType> { EventType.ObjectCreatedPut },
                    Queue = sqsQueue
                });
                
                PutBucketNotificationResponse response = await client.PutBucketNotificationAsync(request);
            }
            catch (AmazonS3Exception e)
            {
                Console.WriteLine("Error encountered on server. Message:'{0}' ", e.Message);
            }
            catch (Exception e)
            {
                Console.WriteLine("Unknown error encountered on server. Message:'{0}' ", e.Message);
            }
        }
    }
}

// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-s3-developer-guide/blob/master/LICENSE-SAMPLECODE.)

import java.io.IOException;
import java.util.EnumSet;

import com.amazonaws.AmazonServiceException;
import com.amazonaws.SdkClientException;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.BucketNotificationConfiguration;
import com.amazonaws.services.s3.model.TopicConfiguration;
import com.amazonaws.services.s3.model.QueueConfiguration;
import com.amazonaws.services.s3.model.S3Event;
import com.amazonaws.services.s3.model.SetBucketNotificationConfigurationRequest;

public class EnableNotificationOnABucket {

    public static void main(String[] args) throws IOException {
        String bucketName = "*** Bucket name ***";
        String clientRegion = "*** Client region ***";
        String snsTopicARN = "*** SNS Topic ARN ***";
        String sqsQueueARN = "*** SQS Queue ARN ***";

        try {
            AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withCredentials(new ProfileCredentialsProvider())
                    .withRegion(clientRegion)
                    .build();
            BucketNotificationConfiguration notificationConfiguration = new BucketNotificationConfiguration();

            // Add an SNS topic notification.
            notificationConfiguration.addConfiguration("snsTopicConfig",
                    new TopicConfiguration(snsTopicARN, EnumSet.of(S3Event.ObjectCreated)));

            // Add an SQS queue notification.
            notificationConfiguration.addConfiguration("sqsQueueConfig",
                    new QueueConfiguration(sqsQueueARN, EnumSet.of(S3Event.ObjectCreated)));
            
            // Create the notification configuration request and set the bucket notification configuration.
            SetBucketNotificationConfigurationRequest request = new SetBucketNotificationConfigurationRequest(
                    bucketName, notificationConfiguration);
            s3Client.setBucketNotificationConfiguration(request);
        }
        catch(AmazonServiceException e) {
            // The call was transmitted successfully, but Amazon S3 couldn't process 
            // it, so it returned an error response.
            e.printStackTrace();
        }
        catch(SdkClientException e) {
            // Amazon S3 couldn't be contacted for a response, or the client
            // couldn't parse the response from Amazon S3.
            e.printStackTrace();
        }
    }
}