GcsAuth.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.datasource.property.storage.auth;

import java.util.Optional;

/** Immutable authentication choice shared by GCS clients, cache identity and protocol builders. */
public final class GcsAuth {
    public enum Mode {
        HMAC, ADC, COMPUTE_ENGINE, ANONYMOUS
    }

    private final Mode mode;
    private final GcpCredential nativeCredential;

    GcsAuth(Mode mode, String impersonationServiceAccount) {
        this.mode = mode;
        this.nativeCredential = mode == Mode.ADC || mode == Mode.COMPUTE_ENGINE
                ? new GcpCredential(mode == Mode.ADC ? GcpCredentialProviderType.DEFAULT
                        : GcpCredentialProviderType.COMPUTE_ENGINE, impersonationServiceAccount)
                : null;
    }

    public Mode getMode() {
        return mode;
    }

    public boolean isAnonymous() {
        return mode == Mode.ANONYMOUS;
    }

    public Optional<GcpCredential> getNativeCredential() {
        return Optional.ofNullable(nativeCredential);
    }
}