tech.greenfield.aws.Tools.java Source code

Introduction

Here is the source code for tech.greenfield.aws.Tools.java

Source

package tech.greenfield.aws;

import java.util.Objects;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;

/**
 * AWS integration utilities.
 * 
 * Specifically this currently implements credential resolving with support for
 * specifying an AWS profile to be loaded from an AWS credentials file (for testing)
 * using the AWS_PROFILE environment variable
 * 
 * @author odeda
 *
 *     Copyright (C) 2016  GreenfieldTech
 * 
 *     This library is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU Lesser General Public
 *     License as published by the Free Software Foundation; either
 *     version 2.1 of the License, or (at your option) any later version.
 * 
 *     This library is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *     Lesser General Public License for more details.
 * 
 *     You should have received a copy of the GNU Lesser General Public
 *     License along with this library; if not, write to the Free Software
 *     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
public class Tools {

    /**
     * Retrieve the credentials to access AWS using the standard AWS credentials
     * resolution process, with the addition of the option to select a non-default
     * AWS CLI profile from the standard AWS credentials file (used for local testing)
     * by specifying the AWS_PROFILE environment variable
     * @return AWS credentials to use for accessing the AWS API
     */
    public static AWSCredentials getCreds() {
        return getCredsProvider().getCredentials();
    }

    public static AWSCredentialsProvider getCredsProvider() {
        String forceProfile = System.getenv("AWS_PROFILE");
        if (Objects.nonNull(forceProfile) && !forceProfile.isEmpty())
            return new ProfileCredentialsProvider(forceProfile);
        return DefaultAWSCredentialsProviderChain.getInstance();
    }

}