public void WriteDataRow(DataRow dataRow, IndexWriterRuleCollection ruleCollection, AnalyzerType analyzerType)
{
if (dataRow == null)
{
throw new ArgumentNullException("dataRow", "dataRow cannot be null");
}
if (ruleCollection == null)
{
throw new ArgumentNullException("ruleCollection", "ruleCollection cannot be null");
}
DataTable dataTable = dataRow.Table;
int totalColumns = dataTable.Columns.Count;
IndexDocument document = new IndexDocument();
for (int j = 0; j < totalColumns; j++)
{
DataColumn column = dataTable.Columns[j];
if (string.IsNullOrEmpty(column.ColumnName))
{
continue;
}
IndexWriterRule rule = ruleCollection.GetRuleFromType(column.DataType);
if (rule.SkipField(column.DataType, column.ColumnName))
{
continue;
}
FieldStorage storageRule = rule.GetStorageRule(column.ColumnName);
// that's all the field data, now lets get the value data
object rowValue = dataRow[j];
bool isRowNull = rowValue == null || rowValue == DBNull.Value;
if (rule.SkipColumnIfNull && isRowNull)
{
continue;
}
else if (!rule.SkipColumnIfNull && string.IsNullOrEmpty(rule.DefaultValueIfNull))
{
continue;
}
string fieldValue = (isRowNull) ? rule.DefaultValueIfNull : rowValue.ToString();
rowValue = null;
document.Add(new FieldNormal(column.ColumnName, fieldValue, storageRule.Store, storageRule.SearchRule, storageRule.VectorRule));
}
if (document.TotalFields > 0)
{
if (analyzerType == AnalyzerType.None || analyzerType == AnalyzerType.Unknown)
{
this.Write(document);
}
else
{
this.Write(document, analyzerType);
}
}
}
public static void WriteInstance <TKey>(this IndexWriter writer, TKey objectToWrite, IndexWriterRuleCollection ruleCollection)
where TKey : class
{
if (writer == null)
{
throw new ArgumentNullException("writer", "writer cannot be null");
}
if (!writer.IsOpen)
{
throw new ObjectDisposedException("writer", "You cannot access this method from a disposed IndexWriter");
}
if (objectToWrite == null)
{
throw new ArgumentNullException("objectToWrite", "objectToWrite cannot be null");
}
if (ruleCollection == null)
{
throw new ArgumentNullException("ruleCollection", "storage cannot be null");
}
List <PropertyInfo> properties = new List <PropertyInfo>(objectToWrite.GetType().GetProperties());
properties.RemoveAll(x => !x.CanRead);
if (properties.Count == 0)
{
throw new InvalidOperationException("You cannot index a class that doesn't have any publicly accessible (get) properties");
}
int totalProperties = properties.Count;
IndexDocument document = new IndexDocument();
int addedProperties = 0;
for (int i = 0; i < totalProperties; i++)
{
PropertyInfo info = properties[i];
IndexWriterRule rule = ruleCollection.GetRuleFromType(info.PropertyType);
object propertyValue = info.GetValue(objectToWrite, null);
if (rule.SkipColumnIfNull && propertyValue == null)
{
continue;
}
else if (!rule.SkipColumnIfNull && string.IsNullOrEmpty(rule.DefaultValueIfNull) && propertyValue == null)
{
continue;
}
string stringValue = string.Empty;
if (propertyValue == null)
{
stringValue = rule.DefaultValueIfNull;
}
else
{
stringValue = propertyValue.ToString();
}
propertyValue = null;
FieldStorage storage = (rule.AppliedColumns.ContainsKey(info.Name)) ? rule.AppliedColumns[info.Name] : rule.DefaultStorageRule;
document.Add(new FieldNormal(info.Name, stringValue, storage.Store, storage.SearchRule, storage.VectorRule));
++addedProperties;
}
if (addedProperties > 0)
{
writer.Write(document);
}
}
