/// <summary>
/// Search facet content in the existing index.
/// </summary>
/// <param name="text">The text to search for.</param>
/// <param name="indexFields">The array of index fields to search in.</param>
/// <param name="facetPaths">The array of facet paths to perform a drill down search on.</param>
/// <param name="numberToReturn">The maximum number of documents to return.</param>
/// <returns>The facet document.</returns>
/// <remarks>Use wildcard chars ('*', '?', '\'), logical ('AND', 'OR'), Quoted exact phrase ("search this").</remarks>
public Nequeo.Search.Engine.FacetDocument SearchFacetDocument(string text, FacetData.IndexField[] indexFields, FacetPath[] facetPaths, int numberToReturn = Int32.MaxValue)
{
Nequeo.Search.Engine.FacetDocument documents = new FacetDocument();
documents.TotalHits = 0;
try
{
// If text exists.
if (!String.IsNullOrEmpty(text))
{
// Load the searcher.
Lucene.Net.Search.IndexSearcher searcher = new Lucene.Net.Search.IndexSearcher(_reader);
string searchFieldName = "facetcontent";
Query query = null;
DrillDownQuery queryFacet = null;
TopDocs results = null;
// Build the facet configuration information.
FacetsConfig config = new FacetsConfig();
// Add the config.
foreach (FacetData.IndexField item in indexFields)
{
config.SetIndexFieldName(item.DimensionName, item.IndexFieldName);
}
// Get bytes
char[] textArray = text.ToCharArray();
// Search logical.
if (text.Contains("AND") || text.Contains("OR"))
{
// Create the query.
query = CreateLogicalQuery(text, searchFieldName);
}
else if (textArray[0].Equals('"') && textArray[textArray.Length - 1].Equals('"'))
{
// Create the query.
query = CreateQuotedQuery(new string(textArray, 1, textArray.Length - 2), searchFieldName);
}
else
{
// Create the query.
query = CreateBoolenQuery(text, BooleanClause.Occur.SHOULD, searchFieldName);
}
// Create the facet query.
queryFacet = new DrillDownQuery(config, query);
foreach (FacetPath facetPath in facetPaths)
{
// Add the path.
queryFacet.Add(facetPath.DimensionName, facetPath.Path);
}
// The collector.
FacetsCollector collector = new FacetsCollector();
// Search.
if (queryFacet != null)
{
results = FacetsCollector.Search(searcher, queryFacet, numberToReturn, collector);
}
// Get the total number of results that was asked for.
int totalResult = ((results.ScoreDocs != null && results.ScoreDocs.Length > 0) ? results.ScoreDocs.Length : 0);
// If result found.
if (results != null && results.TotalHits > 0)
{
List <TextDataResult> textDataResults = new List <TextDataResult>();
List <FileDocumentResult> fileDocResults = new List <FileDocumentResult>();
List <FacetPathResult> facetPathResults = new List <FacetPathResult>();
IDictionary <string, Facets> facetsMap = new Dictionary <string, Facets>();
// Add the facet count.
foreach (FacetData.IndexField item in indexFields)
{
// Add the facet for each index field.
facetsMap[item.DimensionName] = GetTaxonomyFacetCounts(_facetReader, config, collector, item.IndexFieldName);
}
// Create the multi facet list.
foreach (FacetPath facetPath in facetPaths)
{
try
{
// Add the facets.
Facets facets = facetsMap.First(u => u.Key.ToLower().Contains(facetPath.DimensionName.ToLower())).Value;
float number = facets.GetSpecificValue(facetPath.DimensionName, facetPath.Path);
// Add the path.
facetPathResults.Add(new FacetPathResult(facetPath.DimensionName, number, facetPath.Path));
}
catch { }
}
// For each document found.
for (int i = 0; i < totalResult; i++)
{
FileDocumentResult fileDocument = null;
TextDataResult textData = null;
int docID = results.ScoreDocs[i].Doc;
Lucene.Net.Documents.Document doc = searcher.Doc(docID);
try
{
// Get the data for each field.
IndexableField[] textNameFields = doc.GetFields("textname");
// If this field exists then text data.
if (textNameFields.Length > 0)
{
// Assign the data to the text document.
textData = new TextDataResult();
textData.Name = textNameFields.Length > 0 ? textNameFields[0].StringValue : null;
textData.Score = results.ScoreDocs[i].Score;
textData.Doc = docID;
// Do not know if the text was stored.
IndexableField[] textValueFields = doc.GetFields("textcomplete");
textData.Text = textValueFields.Length > 0 ? textValueFields[0].StringValue : null;
}
}
catch { }
// If text data exists then add.
if (textData != null)
{
textDataResults.Add(textData);
}
try
{
// Get the data for each field.
IndexableField[] pathNameFields = doc.GetFields("path");
IndexableField[] modifiedNameFields = doc.GetFields("modified");
// If this field exists then file document.
if (pathNameFields.Length > 0)
{
// Assign the data to the path document.
fileDocument = new FileDocumentResult();
fileDocument.Path = pathNameFields.Length > 0 ? pathNameFields[0].StringValue : null;
fileDocument.Modified = modifiedNameFields.Length > 0 ? modifiedNameFields[0].StringValue : null;
fileDocument.Score = results.ScoreDocs[i].Score;
fileDocument.Doc = docID;
}
}
catch { }
// If file data exists then add.
if (fileDocument != null)
{
fileDocResults.Add(fileDocument);
}
}
// Assign the facet document values.
documents.MaxScore = results.MaxScore;
documents.TotalHits = results.TotalHits;
documents.FacetPathResults = facetPathResults.ToArray();
documents.TextDataResults = textDataResults.ToArray();
documents.FileDocumentResults = fileDocResults.ToArray();
}
}
// Return the documents.
return(documents);
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// Search text in the existing index.
/// </summary>
/// <param name="text">The text to search for.</param>
/// <param name="numberToReturn">The maximum number of documents to return.</param>
/// <returns>The text data.</returns>
/// <remarks>Search for text that is stored along with the index data.
/// Use wildcard chars ('*', '?', '\'), logical ('AND', 'OR'), Quoted exact phrase ("search this")</remarks>
public Nequeo.Search.Engine.TextData SearchText(string text, int numberToReturn = Int32.MaxValue)
{
Nequeo.Search.Engine.TextData documents = new TextData();
documents.TotalHits = 0;
try
{
// If text exists.
if (!String.IsNullOrEmpty(text))
{
// Load the searcher.
Lucene.Net.Search.IndexSearcher searcher = new Lucene.Net.Search.IndexSearcher(_reader);
string searchFieldName = "text";
Query query = null;
TopDocs results = null;
// Get bytes
char[] textArray = text.ToCharArray();
// Search logical.
if (text.Contains("AND") || text.Contains("OR"))
{
// Create the query.
query = CreateLogicalQuery(text, searchFieldName);
}
else if (textArray[0].Equals('"') && textArray[textArray.Length - 1].Equals('"'))
{
// Create the query.
query = CreateQuotedQuery(new string(textArray, 1, textArray.Length - 2), searchFieldName);
}
else
{
// Create the query.
query = CreateBoolenQuery(text, BooleanClause.Occur.SHOULD, searchFieldName);
}
// Search.
if (query != null)
{
results = searcher.Search(query, numberToReturn);
}
// Get the total number of results that was asked for.
int totalResult = ((results.ScoreDocs != null && results.ScoreDocs.Length > 0) ? results.ScoreDocs.Length : 0);
// If result found.
if (results != null && results.TotalHits > 0)
{
List <TextDataResult> textDataResults = new List <TextDataResult>();
// For each document found.
for (int i = 0; i < totalResult; i++)
{
TextDataResult document = new TextDataResult();
int docID = results.ScoreDocs[i].Doc;
Lucene.Net.Documents.Document doc = searcher.Doc(docID);
// Get the data for each field.
IndexableField[] textNameFields = doc.GetFields("textname");
// Assign the data to the text document.
document.Name = textNameFields.Length > 0 ? textNameFields[0].StringValue : null;
document.Score = results.ScoreDocs[i].Score;
document.Doc = docID;
try
{
// Do not know if the text was stored.
IndexableField[] textValueFields = doc.GetFields("textcomplete");
document.Text = textValueFields.Length > 0 ? textValueFields[0].StringValue : null;
}
catch { }
// Add the document.
textDataResults.Add(document);
}
// Assign
documents.TotalHits = results.TotalHits;
documents.MaxScore = results.MaxScore;
documents.Results = textDataResults.ToArray();
}
}
// Return the documents.
return(documents);
}
catch (Exception)
{
throw;
}
}
