org.wildfly.security.x500.cert.X509CertificateExtension Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2016 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.wildfly.security.x500.cert;

import java.io.IOException;
import java.io.OutputStream;
import java.security.cert.Extension;

import org.wildfly.security.asn1.ASN1Encodable;
import org.wildfly.security.asn1.DEREncoder;

/**
 * An X.509 certificate extension.
 *
 * @author David M. Lloyd
 */
public abstract class X509CertificateExtension implements ASN1Encodable, Extension {
    private final boolean critical;

    /**
     * Construct a new instance.
     *
     * @param critical {@code true} if this extension is to be marked critical, {@code false} otherwise
     */
    protected X509CertificateExtension(final boolean critical) {
        this.critical = critical;
    }

    /**
     * Get the OID of this extension.
     *
     * @return the OID of this extension (must not be {@code null})
     */
    public abstract String getId();

    /**
     * Determine whether this object represents a critical extension (as defined by RFC 5280).
     *
     * @return {@code true} if the extension is critical, {@code false} otherwise
     */
    public final boolean isCritical() {
        return critical;
    }

    public void encode(final OutputStream out) throws IOException {
        out.write(getValue());
    }

    public byte[] getValue() {
        DEREncoder encoder = new DEREncoder();
        encodeTo(encoder);
        return encoder.getEncoded();
    }
}