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 * ====================================================================
 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
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 */

package org.apache.http.ssl;

import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;

import javax.net.ssl.SSLContext;

SSLContext factory methods. 
Since:
4.4/**
 * {@link javax.net.ssl.SSLContext} factory methods.
 *
 * @since 4.4
 */
public class SSLContexts {

    
Creates default factory based on the standard JSSE trust material (cacerts file in the security properties directory). System properties are not taken into consideration. 
Returns:
the default SSL socket factory/**
     * Creates default factory based on the standard JSSE trust material
     * ({@code cacerts} file in the security properties directory). System properties
     * are not taken into consideration.
     *
     * @return the default SSL socket factory
     */
    public static SSLContext createDefault() throws SSLInitializationException {
        try {
            final SSLContext sslContext = SSLContext.getInstance(SSLContextBuilder.TLS);
            sslContext.init(null, null, null);
            return sslContext;
        } catch (final NoSuchAlgorithmException ex) {
            throw new SSLInitializationException(ex.getMessage(), ex);
        } catch (final KeyManagementException ex) {
            throw new SSLInitializationException(ex.getMessage(), ex);
        }
    }

    
Creates default SSL context based on system properties. This method obtains default SSL context by calling SSLContext.getInstance("Default"). Please note that Default algorithm is supported as of Java 6. This method will fall back onto createDefault() when Default algorithm is not available. 
Returns:
default system SSL context/**
     * Creates default SSL context based on system properties. This method obtains
     * default SSL context by calling {@code SSLContext.getInstance("Default")}.
     * Please note that {@code Default} algorithm is supported as of Java 6.
     * This method will fall back onto {@link #createDefault()} when
     * {@code Default} algorithm is not available.
     *
     * @return default system SSL context
     */
    public static SSLContext createSystemDefault() throws SSLInitializationException {
        try {
            return SSLContext.getDefault();
        } catch (final NoSuchAlgorithmException ex) {
            return createDefault();
        }
    }

    
Creates custom SSL context.
Returns:
default system SSL context/**
     * Creates custom SSL context.
     *
     * @return default system SSL context
     */
    public static SSLContextBuilder custom() {
        return SSLContextBuilder.create();
    }

}