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The AWS SDK for Java Mobile - Core module holds the classes that is used by the individual service clients to interact with Amazon Web Services. Users need to depend on aws-java-sdk artifact for accessing individual client classes.

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/*
 * Copyright 2011-2018 Amazon Technologies, Inc.
 *
 * Licensed 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://aws.amazon.com/apache2.0
 *
 * 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.util;

import com.amazonaws.AmazonWebServiceClient;
import com.amazonaws.internal.SdkFilterInputStream;

import java.io.InputStream;

/**
 * This wrapper input stream holds a reference to the service client. This is
 * mainly done to avoid the AmazonWebServiceClient object being garbage
 * collected when the client reads data from the input stream.
 */
public class ServiceClientHolderInputStream extends SdkFilterInputStream {

    @SuppressWarnings("unused")
    private AmazonWebServiceClient client;

    /**
     * Constructor.
     * @param in the input stream.
     * @param client the AmazonWebServiceClient.
     */
    public ServiceClientHolderInputStream(InputStream in,
            AmazonWebServiceClient client) {
        super(in);
        this.client = client;
    }
}