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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
 * .
 *
 */

package org.apache.http.impl.client;

import org.apache.http.annotation.Immutable;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;

/**
 * Factory methods for {@link CloseableHttpClient} instances.
 * @since 4.3
 */
@Immutable
public class HttpClients {

    private HttpClients() {
        super();
    }

    /**
     * Creates builder object for construction of custom
     * {@link CloseableHttpClient} instances.
     */
    public static HttpClientBuilder custom() {
        return HttpClientBuilder.create();
    }

    /**
     * Creates {@link CloseableHttpClient} instance with default
     * configuration.
     */
    public static CloseableHttpClient createDefault() {
        return HttpClientBuilder.create().build();
    }

    /**
     * Creates {@link CloseableHttpClient} instance with default
     * configuration based on ssytem properties.
     */
    public static CloseableHttpClient createSystem() {
        return HttpClientBuilder.create().useSystemProperties().build();
    }

    /**
     * Creates {@link CloseableHttpClient} instance that implements
     * the most basic HTTP protocol support.
     */
    public static CloseableHttpClient createMinimal() {
        return new MinimalHttpClient(new PoolingHttpClientConnectionManager());
    }

    /**
     * Creates {@link CloseableHttpClient} instance that implements
     * the most basic HTTP protocol support.
     */
    public static CloseableHttpClient createMinimal(final HttpClientConnectionManager connManager) {
        return new MinimalHttpClient(connManager);
    }

}