AmazonS3ClientBuilder - Java

AmazonS3ClientBuilder is a Java class that helps developers build Amazon S3 clients in a flexible and efficient way. With this class, developers can easily configure various aspects of the S3 client, such as region, credentials, and timeouts.

Features

• Flexible configuration of S3 clients
• Supports multiple authentication methods
• Provides easy access to various S3 API operations
• Supports retry and error handling

How to Use AmazonS3ClientBuilder

Step 1: Import the necessary classes

To use AmazonS3ClientBuilder, you need to include the following import statements in your Java code:

import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;

Step 2: Configure the credentials

You can configure the credentials for your S3 client using one of the following methods:

Method 1: Use a profile from the AWS configuration file

AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withCredentials(new ProfileCredentialsProvider())
                    .withRegion(clientRegion)
                    .build();

Method 2: Use access key and secret key

BasicAWSCredentials awsCreds = new BasicAWSCredentials("access_key_id", "secret_access_key");

AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
                    .withRegion(clientRegion)
                    .build();

Step 3: Configure the client

You can configure additional settings for your S3 client using the following methods:

Set the AWS region

AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withRegion(clientRegion)
                    .build();

Set the endpoint URL

AwsClientBuilder.EndpointConfiguration endpointConfiguration =
                    new AwsClientBuilder.EndpointConfiguration(serviceEndpoint, clientRegion);

AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withEndpointConfiguration(endpointConfiguration)
                    .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
                    .build();

Set the connection timeout

ClientConfiguration clientConfiguration = new ClientConfiguration()
                    .withConnectionTimeout(connectionTimeout);

AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withClientConfiguration(clientConfiguration)
                    .build();

Step 4: Use the client

Once you have built your S3 client, you can use it to interact with Amazon S3. For example, you can upload a file to an S3 bucket using the following code:

s3Client.putObject(bucketName, keyName, new File(filePath));

Conclusion

AmazonS3ClientBuilder is a powerful and flexible tool that makes it easy to create and configure S3 clients in Java. With its support for authentication, configurable client settings, and API operations, it is an essential part of any Java developer's toolkit.