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The MongoDB Driver uber-artifact that combines mongodb-driver-sync and the legacy driver

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/*
 * Copyright 2008-present MongoDB, 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://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 under the License.
 */

package com.mongodb.client.gridfs;

import com.mongodb.annotations.NotThreadSafe;
import com.mongodb.client.gridfs.model.GridFSFile;

import java.io.InputStream;

/**
 * A GridFS InputStream for downloading data from GridFS
 *
 * 

Provides the {@code GridFSFile} for the file to being downloaded as well as the {@code read} methods of a {@link InputStream}

* *

This implementation of a {@code InputStream} will not throw {@link java.io.IOException}s. However, it will throw a * {@link com.mongodb.MongoException} if there is an error reading from MongoDB.

* * @since 3.1 */ @NotThreadSafe public abstract class GridFSDownloadStream extends InputStream { /** * Gets the corresponding {@link GridFSFile} for the file being downloaded * * @return the corresponding GridFSFile for the file being downloaded */ public abstract GridFSFile getGridFSFile(); /** * Sets the number of chunks to return per batch. * *

Can be used to control the memory consumption of this InputStream. The smaller the batchSize the lower the memory consumption * and higher latency.

* * @param batchSize the batch size * @return this * @mongodb.driver.manual reference/method/cursor.batchSize/#cursor.batchSize Batch Size */ public abstract GridFSDownloadStream batchSize(int batchSize); @Override public abstract int read(); @Override public abstract int read(byte[] b); @Override public abstract int read(byte[] b, int off, int len); @Override public abstract long skip(long n); @Override public abstract int available(); /** * Marks the current position in this input stream. * *

A subsequent call to the {@code reset} method repositions this stream at the last marked position so that subsequent reads * re-read the same bytes.

*/ public abstract void mark(); @Override public abstract void reset(); @Override public abstract void close(); }




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