Examples with LazyNonPrimitive org.apache.hadoop.hive.serde2.lazy.LazyNonPrimitive used on opensource projects

Example 1 with LazyNonPrimitive

use of org.apache.hadoop.hive.serde2.lazy.LazyNonPrimitive in project cdap by caskdata.

the class ObjectSerializer method serialize.

public Writable serialize(Object o, ObjectInspector objectInspector) {
    //overwrite field names (as they get lost by Hive)
    StructTypeInfo structTypeInfo = (StructTypeInfo) TypeInfoUtils.getTypeInfoFromObjectInspector(objectInspector);
    structTypeInfo.setAllStructFieldNames(columnNames);
    List<TypeInfo> info = structTypeInfo.getAllStructFieldTypeInfos();
    List<String> names = structTypeInfo.getAllStructFieldNames();
    Map<String, Object> recordMap = new HashMap<>();
    List<Object> recordObjects = ((StructObjectInspector) objectInspector).getStructFieldsDataAsList(o);
    for (int structIndex = 0; structIndex < info.size(); structIndex++) {
        Object obj = recordObjects.get(structIndex);
        TypeInfo objType = info.get(structIndex);
        if (obj instanceof LazyNonPrimitive || obj instanceof LazyPrimitive) {
            // In case the SerDe that deserialized the object is the one of a native table
            recordMap.put(names.get(structIndex), fromLazyObject(objType, obj));
        } else if (obj instanceof Writable) {
            // Native tables sometimes introduce primitive Writable objects at this point
            recordMap.put(names.get(structIndex), fromWritable((Writable) obj));
        } else {
            // In case the deserializer is the DatasetSerDe
            recordMap.put(names.get(structIndex), serialize(obj, objType));
        }
    }
    // TODO Improve serialization logic - CDAP-11
    return new Text(GSON.toJson(recordMap));
}