org.bouncycastle.cert.ocsp.OCSPUtils Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified.

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package org.bouncycastle.cert.ocsp;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.bouncycastle.asn1.ASN1GeneralizedTime;
import org.bouncycastle.asn1.x509.Extensions;
import org.bouncycastle.cert.X509CertificateHolder;

class OCSPUtils
{
    static final X509CertificateHolder[] EMPTY_CERTS = new X509CertificateHolder[0];

    static Set EMPTY_SET = Collections.unmodifiableSet(new HashSet());
    static List EMPTY_LIST = Collections.unmodifiableList(new ArrayList());

    static Date extractDate(ASN1GeneralizedTime time)
    {
        try
        {
            return time.getDate();
        }
        catch (Exception e)
        {
            throw new IllegalStateException("exception processing GeneralizedTime: " + e.getMessage());
        }
    }

    static Set getCriticalExtensionOIDs(Extensions extensions)
    {
        if (extensions == null)
        {
            return EMPTY_SET;
        }

        return Collections.unmodifiableSet(new HashSet(Arrays.asList(extensions.getCriticalExtensionOIDs())));
    }

    static Set getNonCriticalExtensionOIDs(Extensions extensions)
    {
        if (extensions == null)
        {
            return EMPTY_SET;
        }

        // TODO: should probably produce a set that imposes correct ordering
        return Collections.unmodifiableSet(new HashSet(Arrays.asList(extensions.getNonCriticalExtensionOIDs())));
    }

    static List getExtensionOIDs(Extensions extensions)
    {
        if (extensions == null)
        {
            return EMPTY_LIST;
        }

        return Collections.unmodifiableList(Arrays.asList(extensions.getExtensionOIDs()));
    }
}