SessionCredentialsProviderFactory.java

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// Copied from
// https://github.com/awslabs/aws-glue-data-catalog-client-for-apache-hive-metastore/blob/branch-3.4.0/
//

package com.amazonaws.glue.catalog.metastore;

import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.AWSSessionCredentials;
import com.amazonaws.auth.BasicSessionCredentials;
import com.amazonaws.internal.StaticCredentialsProvider;

import org.apache.hadoop.conf.Configuration;

import static com.google.common.base.Preconditions.checkArgument;

public class SessionCredentialsProviderFactory implements AWSCredentialsProviderFactory {

    public final static String AWS_ACCESS_KEY_CONF_VAR = "hive.aws_session_access_id";
    public final static String AWS_SECRET_KEY_CONF_VAR = "hive.aws_session_secret_key";
    public final static String AWS_SESSION_TOKEN_CONF_VAR = "hive.aws_session_token";

    @Override
    public AWSCredentialsProvider buildAWSCredentialsProvider(Configuration conf) {

        checkArgument(conf != null, "conf cannot be null.");

        String accessKey = conf.get(AWS_ACCESS_KEY_CONF_VAR);
        String secretKey = conf.get(AWS_SECRET_KEY_CONF_VAR);
        String sessionToken = conf.get(AWS_SESSION_TOKEN_CONF_VAR);

        checkArgument(accessKey != null, AWS_ACCESS_KEY_CONF_VAR + " must be set.");
        checkArgument(secretKey != null, AWS_SECRET_KEY_CONF_VAR + " must be set.");
        checkArgument(sessionToken != null, AWS_SESSION_TOKEN_CONF_VAR + " must be set.");

        AWSSessionCredentials credentials = new BasicSessionCredentials(accessKey, secretKey, sessionToken);

        return new StaticCredentialsProvider(credentials);
    }
}