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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.util.List;

import org.wildfly.common.Assert;
import org.wildfly.security.asn1.ASN1Encoder;
import org.wildfly.security.x500.X500;
import org.wildfly.security.x500.X500DirectoryAttribute;

/**
 * The subject directory attributes extension as defined by RFC 5280 § 4.2.1.8.
 *
 * @author David M. Lloyd
 */
public final class SubjectDirectoryAttributesExtension extends X509CertificateExtension {
    private final List directoryAttributes;

    /**
     * Construct a new instance.
     *
     * @param directoryAttributes the list of directory attributes (must not be {@code null})
     */
    public SubjectDirectoryAttributesExtension(final List directoryAttributes) {
        super(false);
        Assert.checkNotNullParam("directoryAttributes", directoryAttributes);
        this.directoryAttributes = directoryAttributes;
    }

    public String getId() {
        return X500.OID_CE_SUBJECT_DIRECTORY_ATTRIBUTES;
    }

    public void encodeTo(final ASN1Encoder encoder) {
        encoder.startSequence();
        for (X500DirectoryAttribute directoryAttribute : directoryAttributes) {
            directoryAttribute.encodeTo(encoder);
        }
        encoder.endSequence();
    }
}