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Adyen API Client Library for Java

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 *
 * Adyen Java API Library
 *
 * Copyright (c) 2020 Adyen B.V.
 * This file is open source and available under the MIT license.
 * See the LICENSE file for more info.
 */
package com.adyen.util;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;

public final class CertificateUtil {

    private CertificateUtil() {
    }

    /**
     * Load Certificate from system file path
     * @param filePath Path of certificate file
     * @return Certificate
     * @throws FileNotFoundException if file is not found
     * @throws CertificateException if any error occurred while reading certificate
     */
    public static Certificate loadCertificate(String filePath) throws FileNotFoundException, CertificateException {
        return loadCertificate(new FileInputStream(filePath));
    }

    /**
     * Load Certificate from a input stream
     * @param inputStream InputStream containing certificate data
     * @return Certificate
     * @throws CertificateException if any error occurred while reading certificate from stream
     */
    public static Certificate loadCertificate(InputStream inputStream) throws CertificateException {
        CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
        return certificateFactory.generateCertificate(inputStream);
    }
}