private void buildAttribute(Object element, LuceneWorksBuilder hydrator) {
if (element instanceof GenericRecord) {
GenericRecord record = (GenericRecord) element;
String name = record.getSchema().getName();
if ("TokenTrackingAttribute".equals(name)) {
@SuppressWarnings("unchecked")
List<Integer> positionList = (List<Integer>) record.get("positions");
hydrator.addTokenTrackingAttribute(positionList);
} else if ("CharTermAttribute".equals(name)) {
hydrator.addCharTermAttribute((CharSequence) record.get("sequence"));
} else if ("PayloadAttribute".equals(name)) {
hydrator.addPayloadAttribute(asByteArray(record, "payload"));
} else if ("KeywordAttribute".equals(name)) {
hydrator.addKeywordAttribute(asBoolean(record, "isKeyword"));
} else if ("PositionIncrementAttribute".equals(name)) {
hydrator.addPositionIncrementAttribute(asInt(record, "positionIncrement"));
} else if ("FlagsAttribute".equals(name)) {
hydrator.addFlagsAttribute(asInt(record, "flags"));
} else if ("TypeAttribute".equals(name)) {
hydrator.addTypeAttribute(asString(record, "type"));
} else if ("OffsetAttribute".equals(name)) {
hydrator.addOffsetAttribute(asInt(record, "startOffset"), asInt(record, "endOffset"));
} else {
throw log.unknownAttributeSerializedRepresentation(name);
}
} else if (element instanceof ByteBuffer) {
hydrator.addSerializedAttribute(asByteArray((ByteBuffer) element));
} else {
throw log.unknownAttributeSerializedRepresentation(element.getClass().getName());
}
}
private void processId(GenericRecord operation, LuceneWorksBuilder hydrator) {
GenericRecord id = (GenericRecord) operation.get("id");
Object value = id.get("value");
if (value instanceof ByteBuffer) {
hydrator.addIdAsJavaSerialized(asByteArray((ByteBuffer) value));
} else if (value instanceof Utf8) {
hydrator.addId(value.toString());
} else {
// the rest are serialized objects
hydrator.addId((Serializable) value);
}
}
private void buildAttributes(GenericRecord record, String field, LuceneWorksBuilder hydrator) {
@SuppressWarnings("unchecked")
List<List<?>> tokens = (List<List<?>>) record.get(field);
for (List<?> token : tokens) {
for (Object attribute : token) {
buildAttribute(attribute, hydrator);
}
hydrator.addToken();
}
}
@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);
}
}
}
private void buildLuceneDocument(GenericRecord document, LuceneWorksBuilder hydrator) {
hydrator.defineDocument();
List<GenericRecord> fieldables = asListOfGenericRecords(document, "fieldables");
for (GenericRecord field : fieldables) {
String schema = field.getSchema().getName();
if ("CustomFieldable".equals(schema)) {
hydrator.addFieldable(asByteArray(field, "instance"));
} else if ("NumericIntField".equals(schema)) {
hydrator.addIntNumericField(
asInt(field, "value"),
asString(field, "name"),
asInt(field, "precisionStep"),
asStore(field),
asBoolean(field, "indexed"),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("NumericFloatField".equals(schema)) {
hydrator.addFloatNumericField(
asFloat(field, "value"),
asString(field, "name"),
asInt(field, "precisionStep"),
asStore(field),
asBoolean(field, "indexed"),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("NumericLongField".equals(schema)) {
hydrator.addLongNumericField(
asLong(field, "value"),
asString(field, "name"),
asInt(field, "precisionStep"),
asStore(field),
asBoolean(field, "indexed"),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("NumericDoubleField".equals(schema)) {
hydrator.addDoubleNumericField(
asDouble(field, "value"),
asString(field, "name"),
asInt(field, "precisionStep"),
asStore(field),
asBoolean(field, "indexed"),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("BinaryField".equals(schema)) {
hydrator.addFieldWithBinaryData(
asString(field, "name"),
asByteArray(field, "value"),
asInt(field, "offset"),
asInt(field, "length"));
} else if ("StringField".equals(schema)) {
hydrator.addFieldWithStringData(
asString(field, "name"),
asString(field, "value"),
asStore(field),
asIndex(field),
asTermVector(field),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("TokenStreamField".equals(schema)) {
buildAttributes(field, "value", hydrator);
hydrator.addFieldWithTokenStreamData(
asString(field, "name"),
asTermVector(field),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("ReaderField".equals(schema)) {
hydrator.addFieldWithSerializableReaderData(
asString(field, "name"),
asByteArray(field, "value"),
asTermVector(field),
asFloat(field, "boost"),
asBoolean(field, "omitNorms"),
asBoolean(field, "omitTermFreqAndPositions"));
} else if ("BinaryDocValuesField".equals(schema)) {
hydrator.addDocValuesFieldWithBinaryData(
asString(field, "name"),
asString(field, "type"),
asByteArray(field, "value"),
asInt(field, "offset"),
asInt(field, "length"));
} else if ("NumericDocValuesField".equals(schema)) {
hydrator.addDocValuesFieldWithNumericData(
asString(field, "name"), asString(field, "type"), asLong(field, "value"));
} else {
throw log.cannotDeserializeField(schema);
}
}
}