Examples with ByteBufferSend com.github.ambry.network.ByteBufferSend used on opensource projects

Example 1 with ByteBufferSend

use of com.github.ambry.network.ByteBufferSend in project ambry by linkedin.

the class StoredBlob method makeGetResponse.

/**
 * Make a {@link GetResponse} for the given {@link GetRequest} for which the given {@link ServerErrorCode} was
 * encountered. The request could be for BlobInfo or for Blob (the only two options that the router would request
 * for).
 * @param getRequest the {@link GetRequest} for which the response is being constructed.
 * @param getError the {@link ServerErrorCode} that was encountered.
 * @return the constructed {@link GetResponse}
 * @throws IOException if there was an error constructing the response.
 */
GetResponse makeGetResponse(GetRequest getRequest, ServerErrorCode getError) throws IOException {
    GetResponse getResponse;
    if (getError == ServerErrorCode.No_Error) {
        List<PartitionRequestInfo> infos = getRequest.getPartitionInfoList();
        if (infos.size() != 1 || infos.get(0).getBlobIds().size() != 1) {
            getError = ServerErrorCode.Unknown_Error;
        }
    }
    ServerErrorCode serverError;
    ServerErrorCode partitionError;
    boolean isDataBlob = false;
    try {
        String id = getRequest.getPartitionInfoList().get(0).getBlobIds().get(0).getID();
        isDataBlob = blobs.get(id).type == BlobType.DataBlob;
    } catch (Exception ignored) {
    }
    if (!getErrorOnDataBlobOnly || isDataBlob) {
        // set it in the partitionResponseInfo
        if (getError == ServerErrorCode.No_Error || getError == ServerErrorCode.Blob_Expired || getError == ServerErrorCode.Blob_Deleted || getError == ServerErrorCode.Blob_Not_Found || getError == ServerErrorCode.Blob_Authorization_Failure || getError == ServerErrorCode.Disk_Unavailable) {
            partitionError = getError;
            serverError = ServerErrorCode.No_Error;
        } else {
            serverError = getError;
            // does not matter - this will not be checked if serverError is not No_Error.
            partitionError = ServerErrorCode.No_Error;
        }
    } else {
        serverError = ServerErrorCode.No_Error;
        partitionError = ServerErrorCode.No_Error;
    }
    if (serverError == ServerErrorCode.No_Error) {
        int byteBufferSize;
        ByteBuffer byteBuffer;
        StoreKey key = getRequest.getPartitionInfoList().get(0).getBlobIds().get(0);
        short accountId = Account.UNKNOWN_ACCOUNT_ID;
        short containerId = Container.UNKNOWN_CONTAINER_ID;
        long operationTimeMs = Utils.Infinite_Time;
        StoredBlob blob = blobs.get(key.getID());
        ServerErrorCode processedError = errorForGet(key.getID(), blob, getRequest);
        MessageMetadata msgMetadata = null;
        if (processedError == ServerErrorCode.No_Error) {
            ByteBuffer buf = blobs.get(key.getID()).serializedSentPutRequest.duplicate();
            // read off the size
            buf.getLong();
            // read off the type.
            buf.getShort();
            PutRequest originalBlobPutReq = PutRequest.readFrom(new DataInputStream(new ByteBufferInputStream(buf)), clusterMap);
            switch(getRequest.getMessageFormatFlag()) {
                case BlobInfo:
                    BlobProperties blobProperties = originalBlobPutReq.getBlobProperties();
                    accountId = blobProperties.getAccountId();
                    containerId = blobProperties.getContainerId();
                    operationTimeMs = blobProperties.getCreationTimeInMs();
                    ByteBuffer userMetadata = originalBlobPutReq.getUsermetadata();
                    byteBufferSize = MessageFormatRecord.BlobProperties_Format_V1.getBlobPropertiesRecordSize(blobProperties) + MessageFormatRecord.UserMetadata_Format_V1.getUserMetadataSize(userMetadata);
                    byteBuffer = ByteBuffer.allocate(byteBufferSize);
                    if (originalBlobPutReq.getBlobEncryptionKey() != null) {
                        msgMetadata = new MessageMetadata(originalBlobPutReq.getBlobEncryptionKey().duplicate());
                    }
                    MessageFormatRecord.BlobProperties_Format_V1.serializeBlobPropertiesRecord(byteBuffer, blobProperties);
                    MessageFormatRecord.UserMetadata_Format_V1.serializeUserMetadataRecord(byteBuffer, userMetadata);
                    break;
                case Blob:
                    switch(blobFormatVersion) {
                        case MessageFormatRecord.Blob_Version_V2:
                            if (originalBlobPutReq.getBlobEncryptionKey() != null) {
                                msgMetadata = new MessageMetadata(originalBlobPutReq.getBlobEncryptionKey().duplicate());
                            }
                            byteBufferSize = (int) MessageFormatRecord.Blob_Format_V2.getBlobRecordSize((int) originalBlobPutReq.getBlobSize());
                            byteBuffer = ByteBuffer.allocate(byteBufferSize);
                            MessageFormatRecord.Blob_Format_V2.serializePartialBlobRecord(byteBuffer, (int) originalBlobPutReq.getBlobSize(), originalBlobPutReq.getBlobType());
                            break;
                        case MessageFormatRecord.Blob_Version_V1:
                            byteBufferSize = (int) MessageFormatRecord.Blob_Format_V1.getBlobRecordSize((int) originalBlobPutReq.getBlobSize());
                            byteBuffer = ByteBuffer.allocate(byteBufferSize);
                            MessageFormatRecord.Blob_Format_V1.serializePartialBlobRecord(byteBuffer, (int) originalBlobPutReq.getBlobSize());
                            break;
                        default:
                            throw new IllegalStateException("Blob format version " + blobFormatVersion + " not supported.");
                    }
                    byteBuffer.put(Utils.readBytesFromStream(originalBlobPutReq.getBlobStream(), (int) originalBlobPutReq.getBlobSize()));
                    Crc32 crc = new Crc32();
                    crc.update(byteBuffer.array(), 0, byteBuffer.position());
                    byteBuffer.putLong(crc.getValue());
                    break;
                case All:
                    blobProperties = originalBlobPutReq.getBlobProperties();
                    accountId = blobProperties.getAccountId();
                    containerId = blobProperties.getContainerId();
                    userMetadata = originalBlobPutReq.getUsermetadata();
                    operationTimeMs = originalBlobPutReq.getBlobProperties().getCreationTimeInMs();
                    int blobHeaderSize = MessageFormatRecord.MessageHeader_Format_V2.getHeaderSize();
                    int blobEncryptionRecordSize = originalBlobPutReq.getBlobEncryptionKey() != null ? MessageFormatRecord.BlobEncryptionKey_Format_V1.getBlobEncryptionKeyRecordSize(originalBlobPutReq.getBlobEncryptionKey().duplicate()) : 0;
                    int blobPropertiesSize = MessageFormatRecord.BlobProperties_Format_V1.getBlobPropertiesRecordSize(blobProperties);
                    int userMetadataSize = MessageFormatRecord.UserMetadata_Format_V1.getUserMetadataSize(userMetadata);
                    int blobInfoSize = blobPropertiesSize + userMetadataSize;
                    int blobRecordSize;
                    switch(blobFormatVersion) {
                        case MessageFormatRecord.Blob_Version_V2:
                            blobRecordSize = (int) MessageFormatRecord.Blob_Format_V2.getBlobRecordSize((int) originalBlobPutReq.getBlobSize());
                            break;
                        case MessageFormatRecord.Blob_Version_V1:
                            blobRecordSize = (int) MessageFormatRecord.Blob_Format_V1.getBlobRecordSize((int) originalBlobPutReq.getBlobSize());
                            break;
                        default:
                            throw new IllegalStateException("Blob format version " + blobFormatVersion + " not supported.");
                    }
                    byteBufferSize = blobHeaderSize + key.sizeInBytes() + blobEncryptionRecordSize + blobInfoSize + blobRecordSize;
                    byteBuffer = ByteBuffer.allocate(byteBufferSize);
                    try {
                        MessageFormatRecord.MessageHeader_Format_V2.serializeHeader(byteBuffer, blobEncryptionRecordSize + blobInfoSize + blobRecordSize, originalBlobPutReq.getBlobEncryptionKey() == null ? Message_Header_Invalid_Relative_Offset : blobHeaderSize + key.sizeInBytes(), blobHeaderSize + key.sizeInBytes() + blobEncryptionRecordSize, Message_Header_Invalid_Relative_Offset, blobHeaderSize + key.sizeInBytes() + blobEncryptionRecordSize + blobPropertiesSize, blobHeaderSize + key.sizeInBytes() + blobEncryptionRecordSize + blobInfoSize);
                    } catch (MessageFormatException e) {
                        e.printStackTrace();
                    }
                    byteBuffer.put(key.toBytes());
                    if (originalBlobPutReq.getBlobEncryptionKey() != null) {
                        MessageFormatRecord.BlobEncryptionKey_Format_V1.serializeBlobEncryptionKeyRecord(byteBuffer, originalBlobPutReq.getBlobEncryptionKey().duplicate());
                        msgMetadata = new MessageMetadata(originalBlobPutReq.getBlobEncryptionKey().duplicate());
                    }
                    MessageFormatRecord.BlobProperties_Format_V1.serializeBlobPropertiesRecord(byteBuffer, blobProperties);
                    MessageFormatRecord.UserMetadata_Format_V1.serializeUserMetadataRecord(byteBuffer, userMetadata);
                    int blobRecordStart = byteBuffer.position();
                    switch(blobFormatVersion) {
                        case MessageFormatRecord.Blob_Version_V2:
                            MessageFormatRecord.Blob_Format_V2.serializePartialBlobRecord(byteBuffer, (int) originalBlobPutReq.getBlobSize(), originalBlobPutReq.getBlobType());
                            break;
                        case MessageFormatRecord.Blob_Version_V1:
                            MessageFormatRecord.Blob_Format_V1.serializePartialBlobRecord(byteBuffer, (int) originalBlobPutReq.getBlobSize());
                            break;
                        default:
                            throw new IllegalStateException("Blob format version " + blobFormatVersion + " not supported.");
                    }
                    byteBuffer.put(Utils.readBytesFromStream(originalBlobPutReq.getBlobStream(), (int) originalBlobPutReq.getBlobSize()));
                    crc = new Crc32();
                    crc.update(byteBuffer.array(), blobRecordStart, blobRecordSize - MessageFormatRecord.Crc_Size);
                    byteBuffer.putLong(crc.getValue());
                    break;
                default:
                    throw new IOException("GetRequest flag is not supported: " + getRequest.getMessageFormatFlag());
            }
        } else if (processedError == ServerErrorCode.Blob_Deleted) {
            if (partitionError == ServerErrorCode.No_Error) {
                partitionError = ServerErrorCode.Blob_Deleted;
            }
            byteBuffer = ByteBuffer.allocate(0);
            byteBufferSize = 0;
        } else if (processedError == ServerErrorCode.Blob_Expired) {
            if (partitionError == ServerErrorCode.No_Error) {
                partitionError = ServerErrorCode.Blob_Expired;
            }
            byteBuffer = ByteBuffer.allocate(0);
            byteBufferSize = 0;
        } else if (processedError == ServerErrorCode.Blob_Authorization_Failure) {
            if (partitionError == ServerErrorCode.No_Error) {
                partitionError = ServerErrorCode.Blob_Authorization_Failure;
            }
            byteBuffer = ByteBuffer.allocate(0);
            byteBufferSize = 0;
        } else {
            if (partitionError == ServerErrorCode.No_Error) {
                partitionError = ServerErrorCode.Blob_Not_Found;
            }
            byteBuffer = ByteBuffer.allocate(0);
            byteBufferSize = 0;
        }
        byteBuffer.flip();
        ByteBufferSend responseSend = new ByteBufferSend(byteBuffer);
        List<MessageInfo> messageInfoList = new ArrayList<>();
        List<MessageMetadata> messageMetadataList = new ArrayList<>();
        List<PartitionResponseInfo> partitionResponseInfoList = new ArrayList<PartitionResponseInfo>();
        if (partitionError == ServerErrorCode.No_Error) {
            messageInfoList.add(new MessageInfo(key, byteBufferSize, false, blob.isTtlUpdated(), blob.isUndeleted(), blob.expiresAt, null, accountId, containerId, operationTimeMs, blob.lifeVersion));
            messageMetadataList.add(msgMetadata);
        }
        PartitionResponseInfo partitionResponseInfo = partitionError == ServerErrorCode.No_Error ? new PartitionResponseInfo(getRequest.getPartitionInfoList().get(0).getPartition(), messageInfoList, messageMetadataList) : new PartitionResponseInfo(getRequest.getPartitionInfoList().get(0).getPartition(), partitionError);
        partitionResponseInfoList.add(partitionResponseInfo);
        getResponse = new GetResponse(getRequest.getCorrelationId(), getRequest.getClientId(), partitionResponseInfoList, responseSend, serverError);
    } else {
        getResponse = new GetResponse(getRequest.getCorrelationId(), getRequest.getClientId(), new ArrayList<PartitionResponseInfo>(), new ByteBufferSend(ByteBuffer.allocate(0)), serverError);
    }
    return getResponse;
}