com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder Maven / Gradle / Ivy
/*
* Copyright 2016-2021 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.dynamodbv2;
import javax.annotation.Generated;
import com.amazonaws.ClientConfigurationFactory;
import com.amazonaws.annotation.NotThreadSafe;
import com.amazonaws.client.builder.AwsSyncClientBuilder;
import com.amazonaws.client.AwsSyncClientParams;
import com.amazonaws.endpointdiscovery.EndpointDiscoveryProviderChain;
import com.amazonaws.endpointdiscovery.DefaultEndpointDiscoveryProviderChain;
import com.amazonaws.internal.config.InternalConfig;
/**
* Fluent builder for {@link com.amazonaws.services.dynamodbv2.AmazonDynamoDB}. Use of the builder is preferred over
* using constructors of the client class.
**/
@NotThreadSafe
@Generated("com.amazonaws:aws-java-sdk-code-generator")
public final class AmazonDynamoDBClientBuilder extends AwsSyncClientBuilder {
private static final ClientConfigurationFactory CLIENT_CONFIG_FACTORY = new com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientConfigurationFactory();
private static final EndpointDiscoveryProviderChain DEFAULT_ENDPOINT_DISCOVERY_PROVIDER = new DefaultEndpointDiscoveryProviderChain();
private boolean endpointDiscoveryEnabled = false;
private boolean endpointDiscoveryDisabled = false;
/**
* @return Create new instance of builder with all defaults set.
*/
public static AmazonDynamoDBClientBuilder standard() {
return new AmazonDynamoDBClientBuilder();
}
/**
* @return Default client using the {@link com.amazonaws.auth.DefaultAWSCredentialsProviderChain} and
* {@link com.amazonaws.regions.DefaultAwsRegionProviderChain} chain
*/
public static AmazonDynamoDB defaultClient() {
return standard().build();
}
private AmazonDynamoDBClientBuilder() {
super(CLIENT_CONFIG_FACTORY);
}
public AmazonDynamoDBClientBuilder enableEndpointDiscovery() {
this.endpointDiscoveryEnabled = true;
return this;
}
public AmazonDynamoDBClientBuilder disableEndpointDiscovery() {
this.endpointDiscoveryDisabled = true;
return this;
}
private boolean endpointDiscoveryEnabled() {
Boolean endpointDiscoveryChainSetting = DEFAULT_ENDPOINT_DISCOVERY_PROVIDER.endpointDiscoveryEnabled();
if (endpointDiscoveryDisabled) {
return false;
}
if (endpointDiscoveryEnabled) {
return true;
}
if (endpointDiscoveryChainSetting != null && endpointDiscoveryChainSetting == false) {
return false;
}
if (endpointDiscoveryChainSetting != null && endpointDiscoveryChainSetting) {
return true;
}
if (InternalConfig.Factory.getInternalConfig().endpointDiscoveryEnabled()) {
return true;
}
return false;
}
/**
* Construct a synchronous implementation of AmazonDynamoDB using the current builder configuration.
*
* @param params
* Current builder configuration represented as a parameter object.
* @return Fully configured implementation of AmazonDynamoDB.
*/
@Override
protected AmazonDynamoDB build(AwsSyncClientParams params) {
if (endpointDiscoveryEnabled() && getEndpoint() == null) {
return new AmazonDynamoDBClient(params, true);
}
return new AmazonDynamoDBClient(params);
}
}