/// <summary>
/// Update the specified data in the index
/// </summary>
/// <param name='data'>
/// If set to <c>true</c> data.
/// </param>
public bool Update(T data, LuceneUpdateOptions updateOptions)
{
if (_disposed)
{
throw new ObjectDisposedException("Resource was disposed.");
}
if (writer == null)
{
throw new ArgumentNullException("indexwriter not opened!");
}
Document doc = createDocument(data, updateOptions);
String id = String.Empty;
String fieldname = String.Empty;
if (getId(data, out id, out fieldname))
{
doc = GetUpdateDocument(id, doc, updateOptions);
if (!String.IsNullOrEmpty(id))
{
log.Debug("update document with id: " + id + " idfield: " + fieldname);
//Console.WriteLine("update document with id: " + id + " idfield: " + fieldname);
writer.UpdateDocument(new Lucene.Net.Index.Term(fieldname, id), doc);
return(true);
}
else
{
log.Warn("Update: could not find id");
}
}
return(false);
}
private bool AddField(XmlNode node, LuceneUpdateOptions updateOptions)
{
if (updateOptions == LuceneUpdateOptions.Empty)
{
return(true);
}
if (updateOptions.UpdateMode == LuceneUpdateOptions.UpdateModes.Normal)
{
return(true);
}
if (updateOptions.UpdateMode == LuceneUpdateOptions.UpdateModes.SelectedFields)
{
if (updateOptions.Fields.Count == 0)
{
throw new Exception("no fields specified for mode 'UpdateModes.SelectedFields'");
}
String fieldName = FieldDescription.GetFieldName(node);
return(updateOptions.Fields.Any(f => f.Equals(fieldName, StringComparison.OrdinalIgnoreCase)));
}
return(false);
}
void UpdateFields(Document sourceDocument, Document input, LuceneUpdateOptions options)
{
foreach (var field in sourceDocument.GetFields())
{
if (!options.Fields.Any(f => f.Equals(field.Name, StringComparison.OrdinalIgnoreCase)))
{
input.Add(field);
}
}
// foreach (var field in options.Fields) {
// sourceDocument.RemoveField(field);
// Field f = input.GetField(field);
// sourceDocument.Add(f);
// }
}
private Document GetUpdateDocument(String id, Document input, LuceneUpdateOptions options)
{
if (options.UpdateMode == LuceneUpdateOptions.UpdateModes.Normal)
{
return(input);
}
if (options.UpdateMode == LuceneUpdateOptions.UpdateModes.SelectedFields)
{
Document sourceDocument = GetDocument(id);
if (sourceDocument != null)
{
UpdateFields(sourceDocument, input, options);
return(input);
}
}
return(null);
}
private Document createDocument(object data, LuceneUpdateOptions updateOptions)
{
try
{
Document ret = new Document();
FileInfo fi = Sharpend.Configuration.ConfigurationManager.getConfigFile("searchdescription.xml");
if (!fi.Exists)
{
throw new Exception("could not load searchdescription.xml");
}
String className = data.GetType().ToString();
String assembly = data.GetType().Assembly.FullName;
assembly = assembly.Split(',')[0];
log.Debug("create new document for class " + className + " assembly " + assembly);
XmlNodeList lst = Sharpend.Configuration.ConfigurationManager.getValues("searchdescription.xml", "//field[(../../@class='" + className + "') and (../../@assembly='" + assembly + "')]");
if (lst.Count == 0)
{
log.Warn("there are no matching fields specified for this class: " + className + " assembly" + assembly);
}
foreach (XmlNode nd in lst)
{
if (AddField(nd, updateOptions))
{
Field f = FieldDescription.CreateInstance(data, nd);
if (VerboseMode)
{
log.Debug("add new field: Name: " + f.Name + " ToString: " + f.ToString());
}
ret.Add(f);
}
}
return(ret);
} catch (Exception ex)
{
log.Error(ex);
throw;
}
}
