IcebergS3CredentialExtractor.java

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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.datasource.iceberg;

import org.apache.doris.datasource.credentials.CredentialExtractor;

import com.google.common.collect.Maps;
import org.apache.iceberg.aws.s3.S3FileIOProperties;

import java.util.Map;

/**
 * Default credential extractor for S3 credentials.
 */
public class IcebergS3CredentialExtractor implements CredentialExtractor {

    @Override
    public Map<String, String> extractCredentials(Map<String, String> properties) {
        Map<String, String> credentials = Maps.newHashMap();

        if (properties == null || properties.isEmpty()) {
            return credentials;
        }

        // Extract AWS credentials from Iceberg S3 FileIO format
        if (properties.containsKey(S3FileIOProperties.ACCESS_KEY_ID)) {
            credentials.put(BACKEND_AWS_ACCESS_KEY, properties.get(S3FileIOProperties.ACCESS_KEY_ID));
        }
        if (properties.containsKey(S3FileIOProperties.SECRET_ACCESS_KEY)) {
            credentials.put(BACKEND_AWS_SECRET_KEY, properties.get(S3FileIOProperties.SECRET_ACCESS_KEY));
        }
        if (properties.containsKey(S3FileIOProperties.SESSION_TOKEN)) {
            credentials.put(BACKEND_AWS_TOKEN, properties.get(S3FileIOProperties.SESSION_TOKEN));
        }

        return credentials;
    }
}