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The AWS SDK for Java with support for OSGi. The AWS SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

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/*
 * Copyright (c) 2016. Amazon.com, 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
 *
 * http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 com.amazonaws.http.apache.client.impl;

import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HttpContext;

import java.io.IOException;

/**
 * An instance of {@link ConnectionManagerAwareHttpClient} that delegates all the requests to the given http client.
 */
public class SdkHttpClient implements
        ConnectionManagerAwareHttpClient {

    private final HttpClient delegate;

    private final HttpClientConnectionManager cm;

    public SdkHttpClient(final HttpClient delegate,
                         final HttpClientConnectionManager cm) {
        if (delegate == null) {
            throw new IllegalArgumentException("delegate " +
                    "cannot be null");
        }
        if (cm == null) {
            throw new IllegalArgumentException("connection manager " +
                    "cannot be null");
        }
        this.delegate = delegate;
        this.cm = cm;
    }

    @Override
    public HttpParams getParams() {
        return delegate.getParams();
    }

    @Override
    public ClientConnectionManager getConnectionManager() {
        return delegate.getConnectionManager();
    }

    @Override
    public HttpResponse execute(HttpUriRequest request) throws IOException, ClientProtocolException {
        return delegate.execute(request);
    }

    @Override
    public HttpResponse execute(HttpUriRequest request, HttpContext context) throws IOException, ClientProtocolException {
        return delegate.execute(request, context);
    }

    @Override
    public HttpResponse execute(HttpHost target, HttpRequest request) throws IOException, ClientProtocolException {
        return delegate.execute(target, request);
    }

    @Override
    public HttpResponse execute(HttpHost target, HttpRequest request, HttpContext context) throws IOException, ClientProtocolException {
        return delegate.execute(target, request, context);
    }

    @Override
    public  T execute(HttpUriRequest request, ResponseHandler responseHandler) throws IOException, ClientProtocolException {
        return delegate.execute(request, responseHandler);
    }

    @Override
    public  T execute(HttpUriRequest request, ResponseHandler responseHandler, HttpContext context) throws IOException, ClientProtocolException {
        return delegate.execute(request, responseHandler, context);
    }

    @Override
    public  T execute(HttpHost target, HttpRequest request, ResponseHandler responseHandler) throws IOException, ClientProtocolException {
        return delegate.execute(target, request, responseHandler);
    }

    @Override
    public  T execute(HttpHost target, HttpRequest request, ResponseHandler responseHandler, HttpContext context) throws IOException, ClientProtocolException {
        return delegate.execute(target, request, responseHandler, context);
    }

    @Override
    public HttpClientConnectionManager getHttpClientConnectionManager() {
        return cm;
    }
}