aws-common/src/main/java/io/druid/common/aws/AWSCredentialsUtils.java

/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 io.druid.common.aws;

import com.amazonaws.auth.AWSCredentialsProviderChain;
import com.amazonaws.auth.EnvironmentVariableCredentialsProvider;
import com.amazonaws.auth.InstanceProfileCredentialsProvider;
import com.amazonaws.auth.SystemPropertiesCredentialsProvider;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;

public class AWSCredentialsUtils
{
  public static AWSCredentialsProviderChain defaultAWSCredentialsProviderChain(final AWSCredentialsConfig config) {
    return new AWSCredentialsProviderChain(
        new ConfigDrivenAwsCredentialsConfigProvider(config),
        new LazyFileSessionCredentialsProvider(config),
        new EnvironmentVariableCredentialsProvider(),
        new SystemPropertiesCredentialsProvider(),
        new ProfileCredentialsProvider(),
        new InstanceProfileCredentialsProvider());
  }
}