# ServerConnFactory.java

    /*
     *  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
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    package org.apache.synapse.transport.http.conn;

    import java.net.InetSocketAddress;
    import java.util.Collections;
    import java.util.Map;
    import java.util.Set;
    import java.util.concurrent.ConcurrentHashMap;

    import org.apache.http.HttpRequestFactory;
    import org.apache.http.impl.DefaultHttpRequestFactory;
    import org.apache.http.impl.nio.DefaultNHttpServerConnection;
    import org.apache.http.nio.reactor.IOSession;
    import org.apache.http.nio.reactor.ssl.SSLIOSession;
    import org.apache.http.nio.reactor.ssl.SSLMode;
    import org.apache.http.nio.util.ByteBufferAllocator;
    import org.apache.http.nio.util.HeapByteBufferAllocator;
    import org.apache.http.params.BasicHttpParams;
    import org.apache.http.params.HttpConnectionParams;
    import org.apache.http.params.HttpParams;

    public class ServerConnFactory {

        private final HttpRequestFactory requestFactory;
        private final ByteBufferAllocator allocator;
        private final SSLContextDetails ssl;
        private final Map<InetSocketAddress, SSLContextDetails> sslByIPMap;
        private final HttpParams params;

        public ServerConnFactory(
                final HttpRequestFactory requestFactory,
                final ByteBufferAllocator allocator,
                final SSLContextDetails ssl,
                final Map<InetSocketAddress, SSLContextDetails> sslByIPMap,
                final HttpParams params) {
            super();
            this.requestFactory = requestFactory != null ? requestFactory : new SynapseHTTPRequestFactory();
            this.allocator = allocator != null ? allocator : new HeapByteBufferAllocator();
            this.ssl = ssl;
            this.sslByIPMap = sslByIPMap != null ? new ConcurrentHashMap<InetSocketAddress, SSLContextDetails>(
                sslByIPMap) : null;
            this.params = params != null ? params : new BasicHttpParams();
        }

        public ServerConnFactory(
                final SSLContextDetails ssl,
                final Map<InetSocketAddress, SSLContextDetails> sslByIPMap,
                final HttpParams params) {
            this(null, null, ssl, sslByIPMap, params);
        }

        public ServerConnFactory(
                final HttpParams params) {
            this(null, null, null, null, params);
        }

        public DefaultNHttpServerConnection createConnection(final IOSession iosession) {
            SSLContextDetails customSSL = null;
            if (sslByIPMap != null) {
                customSSL = sslByIPMap.get(iosession.getLocalAddress());
            }
            if (customSSL == null) {
                customSSL = ssl;
            }
            IOSession customSession;
            if (customSSL != null) {
                customSession = new SSLIOSession(
                    iosession, SSLMode.SERVER, customSSL.getContext(), customSSL.getHandler());
                iosession.setAttribute(SSLIOSession.SESSION_KEY, customSession);
            } else {
                customSession = iosession;
            }
            DefaultNHttpServerConnection conn =  LoggingUtils.createServerConnection(
                    customSession, requestFactory, allocator, params);
            int timeout = HttpConnectionParams.getSoTimeout(params);
            conn.setSocketTimeout(timeout);
            return conn;
        }

        public Set<InetSocketAddress> getBindAddresses() {
            return sslByIPMap != null ? sslByIPMap.keySet() : Collections.<InetSocketAddress>emptySet();
        }

    }