Java tutorial
/* * Copyright 2011-2019 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. */ package com.amazonaws.services.s3; import com.amazonaws.ClientConfigurationFactory; import com.amazonaws.annotation.NotThreadSafe; import com.amazonaws.annotation.SdkTestInternalApi; import com.amazonaws.client.AwsSyncClientParams; import com.amazonaws.internal.SdkFunction; import com.amazonaws.regions.AwsRegionProvider; /** * Fluent builder for AmazonS3. Capable of building synchronous and asynchronous clients. Use of the * builder is preferred over using constructors of the client class. **/ @NotThreadSafe public final class AmazonS3ClientBuilder extends AmazonS3Builder<AmazonS3ClientBuilder, AmazonS3> { private AmazonS3ClientBuilder() { super(); } @SdkTestInternalApi AmazonS3ClientBuilder(SdkFunction<AmazonS3ClientParamsWrapper, AmazonS3> clientFactory, ClientConfigurationFactory clientConfigFactory, AwsRegionProvider regionProvider) { super(clientFactory, clientConfigFactory, regionProvider); } /** * @return Create new instance of builder with all defaults set. */ public static AmazonS3ClientBuilder standard() { return new AmazonS3ClientBuilder().withCredentials(new S3CredentialsProviderChain()); } /** * @return Default client using the {@link com.amazonaws.regions.DefaultAwsRegionProviderChain} * chain. */ public static AmazonS3 defaultClient() { return standard().build(); } /** * Construct a synchronous implementation of AmazonS3 using the current builder configuration. * * @return Fully configured implementation of AmazonS3. */ @Override protected AmazonS3 build(AwsSyncClientParams clientParams) { return clientFactory.apply(new AmazonS3ClientParamsWrapper(clientParams, resolveS3ClientOptions())); } }