@Override public void deserialize(byte[] data, LuceneWorksBuilder hydrator) { final ByteArrayInputStream inputStream = new ByteArrayInputStream(data); final int majorVersion = inputStream.read(); final int minorVersion = inputStream.read(); final Protocol protocol = protocols.getProtocol(majorVersion, minorVersion); Decoder decoder = DecoderFactory.get().binaryDecoder(inputStream, null); GenericDatumReader<GenericRecord> reader = new GenericDatumReader<>(protocol.getType("Message")); GenericRecord result; try { result = reader.read(null, decoder); } catch (IOException e) { throw log.unableToDeserializeAvroStream(e); } classReferences = asListOfString(result, "classReferences"); final List<GenericRecord> operations = asListOfGenericRecords(result, "operations"); final ConversionContext conversionContext = new ContextualExceptionBridgeHelper(); for (GenericRecord operation : operations) { String schema = operation.getSchema().getName(); if ("OptimizeAll".equals(schema)) { hydrator.addOptimizeAll(); } else if ("PurgeAll".equals(schema)) { hydrator.addPurgeAllLuceneWork(asClass(operation, "class")); } else if ("Flush".equals(schema)) { hydrator.addFlush(); } else if ("Delete".equals(schema)) { processId(operation, hydrator); hydrator.addDeleteLuceneWork(asClass(operation, "class"), conversionContext); } else if ("DeleteByQuery".equals(schema)) { String entityClassName = asClass(operation, "class"); int queryKey = asInt(operation, "key"); DeleteByQuerySupport.StringToQueryMapper mapper = DeleteByQuerySupport.getStringToQueryMapper(queryKey); List<Utf8> stringList = asListOfString(operation, "query"); String[] query = new String[stringList.size()]; for (int i = 0; i < stringList.size(); ++i) { query[i] = stringList.get(i).toString(); } hydrator.addDeleteByQueryLuceneWork(entityClassName, mapper.fromString(query)); } else if ("Add".equals(schema)) { buildLuceneDocument(asGenericRecord(operation, "document"), hydrator); Map<String, String> analyzers = getAnalyzers(operation); processId(operation, hydrator); hydrator.addAddLuceneWork(asClass(operation, "class"), analyzers, conversionContext); } else if ("Update".equals(schema)) { buildLuceneDocument(asGenericRecord(operation, "document"), hydrator); Map<String, String> analyzers = getAnalyzers(operation); processId(operation, hydrator); hydrator.addUpdateLuceneWork(asClass(operation, "class"), analyzers, conversionContext); } else { throw log.cannotDeserializeOperation(schema); } } }