Commons Net example source code file (SSLContextUtils.java)

This example Commons Net source code file (SSLContextUtils.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons Net tags/keywords

could, generalsecurityexception, io, ioexception, ioexception, keymanager, keymanager, net, securerandom, security, ssl, ssl, sslcontext, sslcontext, sslcontextutils, trustmanager, trustmanager

The Commons Net SSLContextUtils.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.commons.net.util;

import java.io.IOException;
import java.security.GeneralSecurityException;
import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;

/**
 * General utilities for SSLContext.
 * @since 3.0
 */
public class SSLContextUtils {

    private SSLContextUtils() {
        // Not instantiable
    }

    /**
     * Create and initialise sn SSLContext.
     * @param protocol the protocol used to instatiate the context
     * @param keyManager the key manager, may be {@code null}
     * @param trustManager the trust manager, may be {@code null}
     * @return the initialised context.
     * @throws IOException this is used to wrap any {@link GeneralSecurityException} that occurs
     */
    public static SSLContext createSSLContext(String protocol, KeyManager keyManager, TrustManager trustManager) throws IOException {
        return createSSLContext(protocol,
                keyManager == null ? null : new KeyManager[] { keyManager },
                trustManager == null ? null : new TrustManager[] { trustManager });
    }

    /**
     * Create and initialise sn SSLContext.
     * @param protocol the protocol used to instatiate the context
     * @param keyManagers the array of key managers, may be {@code null} but array entries must not be {@code null}
     * @param trustManagers the array of trust managers, may be {@code null} but array entries must not be {@code null}
     * @return the initialised context.
     * @throws IOException this is used to wrap any {@link GeneralSecurityException} that occurs
     */
    public static SSLContext createSSLContext(String protocol, KeyManager[] keyManagers, TrustManager[] trustManagers)
        throws IOException {
        SSLContext ctx;
        try {
            ctx = SSLContext.getInstance(protocol);
            ctx.init(keyManagers, trustManagers, /*SecureRandom*/ null);
        } catch (GeneralSecurityException e) {
            IOException ioe = new IOException("Could not initialize SSL context");
            ioe.initCause(e);
            throw ioe;
        }
        return ctx;
    }
}