public void AddReduce(string reduceKeyHash, object reduceObject)
{
if (_reduceDocuments.TryGetValue(reduceKeyHash, out var outputs) == false)
{
outputs = new List <BlittableJsonReaderObject>(1);
_reduceDocuments.Add(reduceKeyHash, outputs);
}
var djv = new DynamicJsonValue();
if (_index.OutputReduceToCollectionPropertyAccessor == null)
{
_index.OutputReduceToCollectionPropertyAccessor = PropertyAccessor.Create(reduceObject.GetType(), reduceObject);
}
foreach (var property in _index.OutputReduceToCollectionPropertyAccessor.PropertiesInOrder)
{
var value = property.Value.GetValue(reduceObject);
djv[property.Key] = TypeConverter.ToBlittableSupportedType(value);
}
djv[Constants.Documents.Metadata.Key] = new DynamicJsonValue
{
[Constants.Documents.Metadata.Collection] = _outputReduceToCollection
};
var doc = _indexContext.ReadObject(djv, "output-of-reduce-doc", BlittableJsonDocumentBuilder.UsageMode.ToDisk);
outputs.Add(doc);
}
public void AddReduce(string reduceKeyHash, object reduceObject)
{
var key = _outputReduceToCollection + "/" + reduceKeyHash;
var djv = new DynamicJsonValue();
if (_index.OutputReduceToCollectionPropertyAccessor == null)
{
_index.OutputReduceToCollectionPropertyAccessor = PropertyAccessor.Create(reduceObject.GetType());
}
foreach (var property in _index.OutputReduceToCollectionPropertyAccessor.PropertiesInOrder)
{
var value = property.Value.GetValue(reduceObject);
djv[property.Key] = TypeConverter.ToBlittableSupportedType(value);
}
djv[Constants.Documents.Metadata.Key] = new DynamicJsonValue
{
[Constants.Documents.Metadata.Collection] = _outputReduceToCollection
};
_reduceDocuments.Add(new OutputReduceDocument
{
Key = key,
Document = _jsonContext.ReadObject(djv, key, BlittableJsonDocumentBuilder.UsageMode.ToDisk)
});
}
public static PropertyAccessor GetPropertyAccessorForMapReduceOutput(object value, HashSet <CompiledIndexField> groupByFields)
{
var type = value.GetType();
if (value is Dictionary <string, object> ) // don't use cache when using dictionaries
{
return(PropertyAccessor.Create(type, value));
}
return(PropertyAccessorCache.GetOrAdd(type, x => PropertyAccessor.CreateMapReduceOutputAccessor(type, value, groupByFields)));
}
public static PropertyAccessor GetPropertyAccessor(object value)
{
var type = value.GetType();
if (value is Dictionary <string, object> ) // don't use cache when using dictionaries
{
return(PropertyAccessor.Create(type, value));
}
return(PropertyAccessorCache.GetOrAdd(type, x => PropertyAccessor.Create(type, value)));
}
public static void PopulateFromDataReader <T>(this T obj, IDataReader reader, bool tryRead) where T : class, new()
{
if (obj == null)
{
throw new InvalidOperationException(
"Cannot call PopulateFromDataReader<T> on a null object - initialise it before populating.");
}
if (!tryRead || reader.Read())
{
for (int i = 0; i < reader.FieldCount; i++)
{
string name = reader.GetName(i);
KeyValuePair <Type, string> key = new KeyValuePair <Type, string>(typeof(T), name);
object value = reader[i].IsDbNull() ? null : reader[i];
PropertyInfo propertyInfo = propertyCache[key];
if (propertyInfo != null)
{
try
{
PropertyAccessor.Create(propertyInfo).Set(obj, value);
}
catch (Exception ex)
{
throw new InvalidOperationException(
string.Format("Failed to populate property {0} of type {1} with value of type {2}", name,
propertyInfo.PropertyType, value != null ? value.GetType().Name : "null"), ex);
}
}
else
{
try
{
FieldInfo fieldInfo = fieldCache[key];
if (fieldInfo != null)
{
fieldInfo.SetValue(obj, value);
}
}
catch (ArgumentException ex)
{
throw new InvalidOperationException(
string.Format("Failed to populate property or field {0} with value of type {1}", name,
value != null ? value.GetType().Name : "null"), ex);
}
}
}
}
}
public InvokeTypeInfo(
TypeAnalysis typeAnalysis)
: base(
typeAnalysis.name,
typeAnalysis.level,
typeAnalysis.opcode,
typeAnalysis.keywords,
typeAnalysis.tags)
{
if (typeAnalysis.properties.Length != 0)
{
this.properties = typeAnalysis.properties;
this.accessors = new PropertyAccessor <ContainerType> [this.properties.Length];
for (int i = 0; i < this.accessors.Length; i++)
{
this.accessors[i] = PropertyAccessor <ContainerType> .Create(this.properties[i]);
}
}
}
protected override AggregationResult AggregateOn(List <BlittableJsonReaderObject> aggregationBatch, TransactionOperationContext indexContext, CancellationToken token)
{
_blittableToDynamicWrapper.InitializeForEnumeration(aggregationBatch);
var resultObjects = new List <object>();
foreach (var output in _reducingFunc(_blittableToDynamicWrapper))
{
token.ThrowIfCancellationRequested();
if (_propertyAccessor == null)
{
_propertyAccessor = PropertyAccessor.Create(output.GetType(), output);
}
resultObjects.Add(output);
}
return(new AggregatedAnonymousObjects(resultObjects, _propertyAccessor, indexContext));
}
protected override AggregationResult AggregateOn(List <BlittableJsonReaderObject> aggregationBatch, TransactionOperationContext indexContext, IndexingStatsScope stats, CancellationToken token)
{
_blittableToDynamicWrapper.InitializeForEnumeration(aggregationBatch);
var resultObjects = new List <object>();
var indexingFunctionType = _indexType.IsJavaScript() ? IndexingOperation.Map.Jint : IndexingOperation.Map.Linq;
var funcStats = stats?.For(indexingFunctionType, start: false);
foreach (var output in new TimeCountingEnumerable(_reducingFunc(_blittableToDynamicWrapper), funcStats))
{
token.ThrowIfCancellationRequested();
if (_propertyAccessor == null)
{
_propertyAccessor = PropertyAccessor.Create(output.GetType());
}
resultObjects.Add(output);
}
return(new AggregatedAnonymousObjects(resultObjects, _propertyAccessor, indexContext));
}
public bool MoveNext()
{
if (_enumerator.MoveNext() == false)
{
return(false);
}
var document = _enumerator.Current;
using (_createBlittableResult.Start())
{
var accessor = _parent._propertyAccessor ?? (_parent._propertyAccessor = PropertyAccessor.Create(document.GetType()));
var mapResult = new DynamicJsonValue();
_reduceKeyProcessor.Reset();
foreach (var field in accessor.PropertiesInOrder)
{
var value = field.Value.GetValue(document);
var blittableValue = TypeConverter.ToBlittableSupportedType(value);
mapResult[field.Key] = blittableValue;
if (_groupByFields.Contains(field.Key))
{
_reduceKeyProcessor.Process(_parent._indexContext.Allocator, blittableValue);
}
}
var reduceHashKey = _reduceKeyProcessor.Hash;
Current.Data = _parent._indexContext.ReadObject(mapResult, "map-result");
Current.ReduceKeyHash = reduceHashKey;
}
return(true);
}
internal static DataTable ToDataTable <U>(IEnumerable <U> collection)
{
string collectionTypeName;
Type tableType = typeof(U);
if (collection == null)
{
throw new QueryTalkException("ToDataTable<T>", QueryTalkExceptionType.CollectionNullOrEmpty,
String.Format("data class = {0}", tableType), Text.Method.ToDataTable);
}
collectionTypeName = collection.GetType().Name;
if (collection is Wall.IResult)
{
collectionTypeName = Text.Class.ResultSet;
}
if (collectionTypeName == Text.Class.ResultSet)
{
var resultSet = (ResultSet <U>)collection;
if (resultSet.DataTable != null)
{
return(resultSet.DataTable);
}
// check dynamic - not convertable
if (tableType == typeof(System.Object))
{
if (collection.Count() == 0)
{
throw new QueryTalkException("ResultSet.getTableType", QueryTalkExceptionType.EmptyResultset,
"table type = dynamic", Text.Method.ToDataTable);
}
// infer type from the item
using (var enumerator = collection.GetEnumerator())
{
enumerator.MoveNext();
tableType = enumerator.Current.GetType();
}
}
}
DataTable dataTable = new DataTable();
dataTable.Locale = System.Globalization.CultureInfo.InvariantCulture;
// always build new getters (not using cache)
var getters = new List <IPropertyAccessor>();
var props = tableType.GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly)
.Where(prop => prop.GetGetMethod() != null)
.ToArray();
PropertyInfo[] properties;
if (tableType.IsDbRow())
{
var node = DbMapping.GetNodeMap(tableType);
var propsByDatabaseOrder = new List <PropertyInfo>();
foreach (var column in node.SortedColumnsByDatabaseOrder)
{
var prop = props.Where(a => a.Name.EqualsCS(column.ClrName)).Select(a => a).FirstOrDefault();
if (prop != null)
{
propsByDatabaseOrder.Add(prop);
}
}
properties = propsByDatabaseOrder.ToArray();
}
else
{
properties = props;
}
if (properties.Length == 0)
{
throw new QueryTalkException("ResultSet.ToDataTable", QueryTalkExceptionType.InvalidDataClass,
String.Format("data class = {0}", tableType), Text.Method.ToDataTable);
}
int numberOfPropertiesUsed = 0;
foreach (PropertyInfo property in properties)
{
Type clrType;
QueryTalkException exception;
var clrTypeMatch = Mapping.CheckClrCompliance(property.PropertyType, out clrType, out exception);
if (clrTypeMatch == Mapping.ClrTypeMatch.NodeMatch)
{
continue;
}
if (clrTypeMatch != Mapping.ClrTypeMatch.ClrMatch)
{
ThrowNotClrCompliantException(exception, property.PropertyType);
}
dataTable.Columns.Add(property.Name, clrType);
getters.Add(PropertyAccessor.Create(tableType, property));
++numberOfPropertiesUsed;
}
foreach (U item in collection)
{
DataRow row = dataTable.NewRow();
for (int i = 0; i < numberOfPropertiesUsed; i++)
{
row[i] = getters[i].GetValue(item) ?? DBNull.Value;
}
dataTable.Rows.Add(row);
}
return(dataTable);
}
