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The Java operations layer for the MongoDB Java Driver. Third parties can wrap this layer to provide custom higher-level APIs

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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.internal.connection;

import org.bson.BsonDocument;
import org.bson.ByteBuf;
import org.bson.codecs.Decoder;

import java.io.Closeable;

/**
 * 

This class is not part of the public API and may be removed or changed at any time

*/ public class ResponseBuffers implements Closeable { private final ReplyHeader replyHeader; private final ByteBuf bodyByteBuffer; private final int bodyByteBufferStartPosition; private volatile boolean isClosed; ResponseBuffers(final ReplyHeader replyHeader, final ByteBuf bodyByteBuffer) { this.replyHeader = replyHeader; this.bodyByteBuffer = bodyByteBuffer; this.bodyByteBufferStartPosition = bodyByteBuffer == null ? 0 : bodyByteBuffer.position(); } /** * Gets the reply header. * * @return the reply header */ public ReplyHeader getReplyHeader() { return replyHeader; } T getResponseDocument(final int messageId, final Decoder decoder) { ReplyMessage replyMessage = new ReplyMessage<>(this, decoder, messageId); reset(); return replyMessage.getDocument(); } /** * Returns a read-only buffer containing the response body. Care should be taken to not use the returned buffer after this instance has * been closed. * * @return a read-only buffer containing the response body */ public ByteBuf getBodyByteBuffer() { return bodyByteBuffer.asReadOnly(); } public void reset() { bodyByteBuffer.position(bodyByteBufferStartPosition); } @Override public void close() { if (!isClosed) { if (bodyByteBuffer != null) { bodyByteBuffer.release(); } isClosed = true; } } }




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