/// <summary>
/// Removes a rule from this collection
/// </summary>
/// <param name="rule">The rule to remove.</param>
public void RemoveRule(IndexWriterRule rule)
{
if (columns.Contains(rule))
{
columns.Remove(rule);
}
}
/// <summary>
/// Adds a rule to this collection
/// </summary>
/// <param name="rule">The rule to add.</param>
public void AddRule(IndexWriterRule rule)
{
if (!columns.Contains(rule))
{
columns.Add(rule);
}
}
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);
}
}
}
/// <summary>
/// Determines whether the specified <see cref="System.Object"/> is equal to this instance.
/// </summary>
/// <param name="obj">The <see cref="System.Object"/> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="System.Object"/> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
/// <exception cref="T:System.NullReferenceException">
/// The <paramref name="obj"/> parameter is null.
/// </exception>
public override bool Equals(object obj)
{
if (obj == null || obj.GetType() != typeof(IndexWriterRule))
{
return(false);
}
IndexWriterRule tempRule = (IndexWriterRule)obj;
return(tempRule.appliedType == this.appliedType);
}
/// <summary>
/// Gets a <see cref="IndexLibrary.IndexWriterRule"/> from the specified type
/// </summary>
/// <param name="ruleType">Type of the rule to grab.</param>
/// <returns>If a rule with the specified type exists then that rule; otherwise a new rule for that type</returns>
public IndexWriterRule GetRuleFromType(Type ruleType)
{
IndexWriterRule rule = columns.FirstOrDefault(x => x.AppliedType == ruleType);
if (rule == null)
{
rule = new IndexWriterRule(ruleType);
rule.DefaultValueIfNull = "false";
rule.MaxAllowedFieldLength = 1000;
rule.OnlyIndexIfRuleContainsFieldName = false;
rule.SkipColumnIfNull = true;
this.columns.Add(rule);
}
return(rule);
}
/// <summary>
/// Determines if the specified fieldname should be skipped depending on the rule contained in this instance
/// </summary>
/// <param name="fieldType">Type of the field.</param>
/// <param name="fieldName">Name of the field.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">
/// The <paramref name="fieldType"/> parameter is null
/// </exception>
/// <exception cref="System.ArgumentNullException">
/// The <paramref name="fieldName"/> parameter is null or empty
/// </exception>
public bool SkipField(Type fieldType, string fieldName)
{
if (fieldType == null)
{
throw new ArgumentNullException("fieldType", "fieldType cannot be null");
}
if (string.IsNullOrEmpty(fieldName))
{
throw new ArgumentNullException("fieldName", "fieldName cannot be null or empty");
}
IndexWriterRule rule = GetRuleFromType(fieldType);
// no rule? include it!
if (rule == null)
{
return(false);
}
return(rule.SkipField(fieldType, fieldName));
}
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);
}
}
/// <summary>
/// Determines whether the specified rule is contained in this instance
/// </summary>
/// <param name="rule">The rule to search for.</param>
/// <returns>
/// <c>true</c> if the specified rule contains rule; otherwise, <c>false</c>.
/// </returns>
public bool ContainsRule(IndexWriterRule rule)
{
return(columns.Contains(rule));
}
/// <summary>
/// Gets a <see cref="IndexLibrary.IndexWriterRule"/> from the specified type
/// </summary>
/// <param name="ruleType">Type of the rule to grab.</param>
/// <returns>If a rule with the specified type exists then that rule; otherwise a new rule for that type</returns>
public IndexWriterRule GetRuleFromType(Type ruleType)
{
IndexWriterRule rule = columns.FirstOrDefault(x => x.AppliedType == ruleType);
if (rule == null) {
rule = new IndexWriterRule(ruleType);
rule.DefaultValueIfNull = "false";
rule.MaxAllowedFieldLength = 1000;
rule.OnlyIndexIfRuleContainsFieldName = false;
rule.SkipColumnIfNull = true;
this.columns.Add(rule);
}
return rule;
}
/// <summary>
/// Determines whether the specified rule is contained in this instance
/// </summary>
/// <param name="rule">The rule to search for.</param>
/// <returns>
/// <c>true</c> if the specified rule contains rule; otherwise, <c>false</c>.
/// </returns>
public bool ContainsRule(IndexWriterRule rule)
{
return columns.Contains(rule);
}
/// <summary>
/// Adds a rule to this collection
/// </summary>
/// <param name="rule">The rule to add.</param>
public void AddRule(IndexWriterRule rule)
{
if (!columns.Contains(rule))
columns.Add(rule);
}
/// <summary>
/// Removes a rule from this collection
/// </summary>
/// <param name="rule">The rule to remove.</param>
public void RemoveRule(IndexWriterRule rule)
{
if (columns.Contains(rule))
columns.Remove(rule);
}
