/*
 * Copyright 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 software.amazon.awssdk.http;

import java.io.InputStream;
import software.amazon.awssdk.annotations.SdkPublicApi;

/**
 * Provides the content stream of a request.
 * <p>
 * Each call to to the {@link #newStream()} method must result in a stream whose position is at the beginning of the content.
 * Implementations may return a new stream or the same stream for each call. If returning a new stream, the implementation
 * must ensure to {@code close()} and free any resources acquired by the previous stream. The last stream returned by {@link
 * #newStream()}} will be closed by the SDK.
 *
 */
@SdkPublicApi
@FunctionalInterface
public interface ContentStreamProvider {
    /**
     * @return The content stream.
     */
    InputStream newStream();
}