private void RetrieveMatches(
ISearchWrapper wrapper, TopDocs hits, IList<MatchingDocument> matchList,
Func<MatchingDocument,bool> doesMatch, int first, int count)
{
var scoreDocs = hits.scoreDocs;
// Find the earliest acceptable document
int docIndex = 0;
Document doc;
do
{
doc = wrapper.IndexSearcher.doc(scoreDocs[docIndex].doc);
if (doesMatch(new MatchingDocument(doc)))
break;
++docIndex;
} while (docIndex < scoreDocs.Length);
// Find the document that matches 'first' index
int matchIndex = 0;
while (matchIndex < first && docIndex < scoreDocs.Length)
{
doc = wrapper.IndexSearcher.doc(scoreDocs[docIndex].doc);
++docIndex;
if (doesMatch(new MatchingDocument(doc)))
++matchIndex;
}
// Find the remaining matches
while (matchList.Count < count && docIndex < scoreDocs.Length)
{
doc = wrapper.IndexSearcher.doc(scoreDocs[docIndex].doc);
++docIndex;
var matchingDoc = new MatchingDocument(doc);
if (doesMatch(matchingDoc))
{
matchList.Add(matchingDoc);
}
}
}
private bool DoesMatch(MatchingDocument doc)
{
var mimeType = doc.MimeType;
var matches = FileTypes.AcceptedMimeTypes.Contains(mimeType);
if (!matches)
Console.WriteLine("{0} was not accepted", mimeType);
return matches;
}
private string CheckMimeType(string url, MatchingDocument doc)
{
if (!FileTypes.AcceptedMimeTypes.Contains(doc.MimeType))
{
throw new ArgumentException("Not a valid image url: " + url);
}
return doc.MimeType;
}
private dynamic ToMatchingItem(MatchingDocument match, string[] propertyList)
{
var keywords = match.Keywords ?? "";
var path = match.SignatureIndexPath;
var resolveValue = new Func<string,object>( name =>
{
switch(name.ToLowerInvariant())
{
case "id": return PathToId(path);
case "relativepath": return Searcher.ToRelativePath(path);
case "fullurl": return PathToUrl(path);
case "thumburl": return PathToThumbUrl(path);
case "imagename": return Path.GetFileName(path);
case "keywords": return keywords.Split(',');
case "mimetype": return match.MimeType;
case "createddate": return match.CreatedDate.Value.ToString();
case "formattedcreateddate": return match.CreatedDate.Value.ToString(ClientDateFormat);
case "formattedcreatedtimestamp": return match.CreatedDate.Value.ToString(ClientDateTimeFormat);
case "signature": return match.SignatureHash;
case "length": return match.SignatureFileLength;
case "geolocation": return match.GpsPosition;
case "latitude": return match.Latitude;
case "longitude": return match.Longitude;
case "city": return match.City ?? "";
case "country": return match.Country ?? "";
case "locationname": return match.StandardName ?? match.City ?? "";
case "lensinfo": return match.LensInfo ?? "";
case "lensmodel": return match.LensModel ?? "";
case "make": return match.Make ?? "";
case "model": return match.Model ?? "";
case "slideurl": return PathToSlideUrl(path);
}
return null;
});
dynamic mi = new ExpandoObject();
var miAccess = (IDictionary<String, Object>)mi;
foreach (var propertyName in propertyList)
{
var propertyValue = resolveValue(propertyName);
if (propertyValue != null)
miAccess.Add(propertyName, propertyValue);
}
return mi;
}