static void Main(string[] args)
{
Lucene.Net.Util.Version version = Lucene.Net.Util.Version.LUCENE_29;
var dir = new RAMDirectory();
Analyzer analyzer = new PerFieldAnalyzerWrapper(new StandardAnalyzer(version),
new Dictionary <string, Analyzer> {
{ "organization", new KeywordAnalyzer() }
});
// Add content to the index
var indexWriter = new IndexWriter(dir, analyzer, IndexWriter.MaxFieldLength.UNLIMITED);
foreach (var document in CreateDocuments(CreateTestData()))
{
indexWriter.AddDocument(document);
}
indexWriter.Commit();
indexWriter.Dispose();
var orgFieldName = "organization";
var titleFieldName = "title";
var createdAtName = "created_at";
var rangeFacetName = "rangeFacet";
//var orgFacetHandler = new PathFacetHandler(orgFieldName);
//orgFacetHandler.SetSeparator("/");
var orgFacetHandler = new MultiValueFacetHandler(orgFieldName);
FacetHandler titleFacetHandler = new MultiValueFacetHandler(titleFieldName);
var createdAtFacetHandler = new SimpleFacetHandler(createdAtName);
//var ranges = new List<string> { "[2000/01/01 TO 2000/12/30]", "[2001/01/01 TO 2007/12/30]" };
var ranges = new List <string> {
"[20000101 TO 20001230]", "[20040101 TO *]"
};
var rangeFacetHandler = new RangeFacetHandler(rangeFacetName, createdAtName, ranges);
IndexReader reader = IndexReader.Open(dir, true);
// decorate it with a bobo index reader
BoboIndexReader boboReader = BoboIndexReader.GetInstance(reader, new[] { orgFacetHandler, titleFacetHandler, createdAtFacetHandler, rangeFacetHandler });
// creating a browse request
var browseRequest = new BrowseRequest {
Count = 10, Offset = 0, FetchStoredFields = true
};
// add a selection
//var orgSelection = new BrowseSelection(orgFieldName);
//orgSelection.AddValue("A/B");
//browseRequest.AddSelection(orgSelection);
var titleSelction = new BrowseSelection(titleFieldName);
//titleSelction.AddValue("Læge");
browseRequest.AddSelection(titleSelction);
browseRequest.AddSelection(new BrowseSelection(rangeFacetName));
// parse a query
var parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "name", new KeywordAnalyzer());
Query q = parser.Parse("an*");
browseRequest.Query = q;
// add the facet output specs
var orgSpec = new FacetSpec {
OrderBy = FacetSpec.FacetSortSpec.OrderValueAsc
};
browseRequest.SetFacetSpec(orgFieldName, orgSpec);
var titleSpec = new FacetSpec {
MinHitCount = 1, OrderBy = FacetSpec.FacetSortSpec.OrderHitsDesc
};
browseRequest.SetFacetSpec(titleFieldName, titleSpec);
//var createdAtSpec = new FacetSpec { MinHitCount = 1, OrderBy = FacetSpec.FacetSortSpec.OrderHitsDesc };
//browseRequest.SetFacetSpec(createdAtName, createdAtSpec);
var rangeSpec = new FacetSpec {
MinHitCount = 1, OrderBy = FacetSpec.FacetSortSpec.OrderHitsDesc
};
browseRequest.SetFacetSpec(rangeFacetName, rangeSpec);
// perform browse
IBrowsable browser = new BoboBrowser(boboReader);
BrowseResult result = browser.Browse(browseRequest);
// Showing results now
int totalHits = result.NumHits;
BrowseHit[] hits = result.Hits;
Dictionary <String, IFacetAccessible> facetMap = result.FacetMap;
IFacetAccessible orgFacets = facetMap[orgFieldName];
Console.WriteLine("Facets {0}:", orgFieldName);
foreach (BrowseFacet facet in orgFacets.GetFacets())
{
Console.WriteLine(facet.ToString());
}
IFacetAccessible titleFacets = facetMap[titleFieldName];
Console.WriteLine("Facets {0}:", titleFieldName);
foreach (BrowseFacet facet in titleFacets.GetFacets())
{
Console.WriteLine(facet.ToString());
}
if (facetMap.ContainsKey(createdAtName))
{
IFacetAccessible createdAtFacets = facetMap[createdAtName];
Console.WriteLine("Facets {0}:", createdAtName);
foreach (BrowseFacet facet in createdAtFacets.GetFacets())
{
Console.WriteLine(facet.ToString());
}
}
if (facetMap.ContainsKey(rangeFacetName))
{
Console.WriteLine("-------------------------------------");
IFacetAccessible rangeFacets = facetMap[rangeFacetName];
Console.WriteLine("Facets {0}:", rangeFacets);
foreach (BrowseFacet facet in rangeFacets.GetFacets())
{
Console.WriteLine(facet.ToString());
}
Console.WriteLine("-------------------------------------");
}
Console.WriteLine("Actual items (total: {0}) query: {1}:", totalHits, q);
for (int i = 0; i < hits.Length; ++i)
{
BrowseHit browseHit = hits[i];
Console.WriteLine("id = {0}, Name = {1}, Organizations = {{{2}}}, Titles = {{{3}}}, Created at = {4}", browseHit.StoredFields.Get("id"), browseHit.StoredFields.Get("name"), string.Join(", ", browseHit.StoredFields.GetValues("organization").Distinct()), string.Join(", ", browseHit.StoredFields.GetValues("title").Distinct()), browseHit.StoredFields.Get("created_at"));
}
}
private BrowseResult PerformAutoCompleteLookup(string prefix, string indexPath)
{
FacetHandler handler = new MultiValueFacetHandler("title");
Directory directory = FSDirectory.Open(new System.IO.DirectoryInfo(indexPath));
IndexReader indexReader = IndexReader.Open(directory, true);
// decorate it with a bobo index reader
BoboIndexReader boboReader = BoboIndexReader.GetInstance(indexReader, new FacetHandler[] { handler });
BrowseRequest browseRequest = new BrowseRequest();
browseRequest.Count = 8;
browseRequest.Offset = 0;
browseRequest.FetchStoredFields = true;
// add a selection
BrowseSelection sel = new BrowseSelection("title");
//sel.AddValue("alexey");
browseRequest.AddSelection(sel);
// parse a query
// NOTE: this was "Entity" originally
QueryParser parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "title", new KeywordAnalyzer());
Query q = parser.Parse("SPListItem");
browseRequest.Query = q;
// add the facet output specs
FacetSpec spec = new FacetSpec();
spec.Prefix = prefix;
spec.OrderBy = FacetSpec.FacetSortSpec.OrderHitsDesc;
browseRequest.SetFacetSpec("title", spec);
// perform browse
IBrowsable browser = new BoboBrowser(boboReader);
BrowseResult result = browser.Browse(browseRequest);
return result;
//// Showing results now
//Dictionary<String, IFacetAccessible> facetMap = result.FacetMap;
//IFacetAccessible colorFacets = facetMap["Body"];
//IEnumerable<BrowseFacet> facetVals = colorFacets.GetFacets();
//Debug.WriteLine("Facets:");
//int count = 0;
//foreach (BrowseFacet facet in facetVals)
//{
// count++;
// Debug.WriteLine(facet.ToString());
//}
//Debug.WriteLine("Total = " + count);
}
