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  * Copyright 2010-2015, Inc. or its affiliates. All Rights Reserved.
  * Licensed under the Apache License, Version 2.0 (the "License").
  * You may not use this file except in compliance with the License.
  * A copy of the License is located at
 * or in the "license" file accompanying this file. This file is distributed
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
package com.amazonaws.http.conn;
    private static final Log log = LogFactory.getLog(ClientConnectionManagerFactory.class);

Returns a wrapped instance of org.apache.http.conn.ClientConnectionManager to capture the necessary performance metrics.

orig the target instance to be wrapped
    public static ClientConnectionManager wrap(ClientConnectionManager orig) {
        if (orig instanceof Wrapped)
            throw new IllegalArgumentException();
        final Class<?>[] interfaces;
        if (orig instanceof ConnPoolControl) {
            interfaces = new Class<?>[] { 
        } else {
            interfaces = new Class<?>[] { 
        return (ClientConnectionManager) Proxy.newProxyInstance(
                new Handler(orig));

The handler behind the dynamic proxy for org.apache.http.conn.ClientConnectionManager so that the any returned instance of org.apache.http.conn.ClientConnectionRequest can further wrapped for capturing performance metrics.
    private static class Handler implements InvocationHandler {
        private final ClientConnectionManager orig;
        Handler(ClientConnectionManager real) {
            this. = real;
        public Object invoke(Object proxyMethod methodObject[] argsthrows Throwable {
            try {
                Object ret = method.invoke(args);
                return ret instanceof ClientConnectionRequest
                     ? ClientConnectionRequestFactory.wrap((ClientConnectionRequestret)
                     : ret
            } catch (InvocationTargetException e) {
                throw e.getCause();
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