/// <summary>
/// Extends a Content version with text extract.
/// </summary>
public static void AddTextExtract(int versionId, string textExtract)
{
// 1: load indexDocument.
var docData = SearchManager.LoadIndexDocumentByVersionId(versionId);
var indexDoc = docData.IndexDocument;
// 2: original and new text extract concatenation.
textExtract = (indexDoc.GetStringValue(IndexFieldName.AllText) ?? "") + textExtract;
indexDoc.Add(new IndexField(IndexFieldName.AllText, textExtract, IndexingMode.Analyzed, IndexStoringMode.No,
IndexTermVector.No));
// 3: save indexDocument.
docData.IndexDocumentChanged();
DataProvider.SaveIndexDocument(versionId, docData.SerializedIndexDocument);
// 4: distributed cache invalidation because of version timestamp.
DataBackingStore.RemoveNodeDataFromCacheByVersionId(versionId);
// 5: index update.
var node = Node.LoadNodeByVersionId(versionId);
if (node != null)
{
SearchManager.GetIndexPopulator().RebuildIndex(node);
}
}
public static void AddTextExtract(int versionId, string textExtract)
{
// 1: load indexDocumentInfo.
var docData = StorageContext.Search.LoadIndexDocumentByVersionId(versionId);
var buffer = docData.IndexDocumentInfoBytes;
var docStream = new System.IO.MemoryStream(buffer);
var formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
var info = (IndexDocumentInfo)formatter.Deserialize(docStream);
// 2: original and new text extract concatenation.
var allTextField = info.Fields.FirstOrDefault(f => f.Name == LucObject.FieldName.AllText);
if (allTextField != null)
{
textExtract = allTextField.Value + textExtract;
info.Fields.Remove(allTextField);
}
info.Fields.Add(
new IndexFieldInfo(
LucObject.FieldName.AllText,
textExtract,
FieldInfoType.StringField,
Lucene.Net.Documents.Field.Store.NO,
Lucene.Net.Documents.Field.Index.ANALYZED,
Lucene.Net.Documents.Field.TermVector.NO));
// 3: save indexDocumentInfo.
using (var docStream2 = new MemoryStream())
{
var formatter2 = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
formatter2.Serialize(docStream2, info);
docStream2.Flush();
docStream2.Position = 0;
var bytes = docStream2.GetBuffer();
DataProvider.SaveIndexDocument(versionId, bytes);
}
// 4: distributed cache invalidation because of version timestamp.
DataBackingStore.RemoveNodeDataFromCacheByVersionId(versionId);
// 5: distributed lucene index update.
var node = Node.LoadNodeByVersionId(versionId);
if (node != null)
{
StorageContext.Search.SearchEngine.GetPopulator().RefreshIndex(node, false);
}
}