com.axway.ebxml.CertificateChain.java Source code

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Here is the source code for com.axway.ebxml.CertificateChain.java

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/**
* Copyright 2010 Axway Inc
*
* 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 com.axway.ebxml;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.FileInputStream;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Collection;
import java.util.LinkedList;

/**
 * Represents a DER or p7b encoded certificate file
 */
public class CertificateChain {
    private static Log logger = LogFactory.getLog(CertificateChain.class);

    private X509Certificate[] chain;

    /**
     * Constructor
     * @param certificatePath path to a p7b or DER encoded file
     * @return Array of X509Certificate
     * @throws java.io.FileNotFoundException
     * @throws java.security.cert.CertificateException
     */
    public CertificateChain(String certificatePath) throws CertificateException, IOException {
        if (certificatePath == null)
            throw new IllegalArgumentException("certificatePath expected");

        logger.debug("Loading certificate from: " + certificatePath);

        LinkedList<X509Certificate> returnList = new LinkedList<X509Certificate>();
        FileInputStream fis = new FileInputStream(certificatePath);
        try {
            CertificateFactory cf = CertificateFactory.getInstance("X.509");
            Collection certificates = cf.generateCertificates(fis);
            for (Object cert : certificates) {
                returnList.add((X509Certificate) cert);
                logger.debug("Certificate: " + cert);
            }
        } finally {
            fis.close();
        }

        chain = returnList.toArray(new X509Certificate[returnList.size()]);
    }

    /**
     * Returns an array of certificates loaded from the p7b or DER encoded file
     */
    public X509Certificate[] getCertificates() {
        return chain.clone();
    }
}