private void AddExifInfo(string filename, Document doc, JToken info)
{
string latitude = null;
string longitude = null;
string latRef = null;
string lonRef = null;
DateTime? createdDate = null;
foreach (var child in info.Children())
{
var prop = child as JProperty;
if (prop != null)
{
foreach (var grandchild in child.Children())
{
var obj = grandchild as JObject;
if (obj != null)
{
foreach (var kv in obj)
{
var val = ToString(kv.Value);
var path = string.Format("{0}.{1}", prop.Name, kv.Key);
// Remove leading & trailing spaces in keywords. I suspect a better way is to
// create a more sophisticated Analyzer, but I haven't worked that out correctly.
// It's important to keep single keyword phrases with spaces together: "mount rushmore"
if (path == "IPTC.Keywords" || path == "XMP.Subject")
{
var tokens = val.Split(',');
for (int idx = 0; idx < tokens.Length; ++idx)
{
tokens[idx] = tokens[idx].Trim();
}
val = String.Join(",", tokens);
if (path == "IPTC.Keywords" && tokens.Length > 0)
{
foreach (var k in tokens)
{
var trimmedKeyword = k.Trim();
if (!String.IsNullOrWhiteSpace(trimmedKeyword))
doc.add(new FacetField(FacetNames.Keywords, trimmedKeyword));
}
}
}
switch (path)
{
case "EXIF.GPSLatitudeRef":
latRef = val;
break;
case "EXIF.GPSLongitudeRef":
lonRef = val;
break;
case "EXIF.GPSLatitude":
latitude = val;
break;
case "EXIF.GPSLongitude":
longitude = val;
break;
case "EXIF.DateTimeOriginal":
case "EXIF.CreateDate":
if (createdDate == null)
{
DateTime temp;
if (DateTime.TryParseExact(val, "yyyy:MM:dd HH:mm:ss", new CultureInfo("en-US"), DateTimeStyles.None, out temp))
{
createdDate = temp;
}
}
break;
}
string docKey;
if (StoredValues.TryGetValue(path, out docKey))
{
doc.add(new TextField(docKey.ToLower(), val, Field.Store.YES));
}
}
}
}
}
}
if (createdDate == null)
{
createdDate = new FileInfo(filename).CreationTime;
}
doc.add(new TextField(FieldName.Date, createdDate.Value.ToString("yyyyMMdd"), Field.Store.NO));
doc.add(new TextField(FieldName.CreatedDate, createdDate.Value.ToString("o"), Field.Store.YES));
doc.add(new TextField(FieldName.Day, createdDate.Value.AllDayNames(), Field.Store.NO));
doc.add(new TextField(FieldName.Month, createdDate.Value.AllMonthNames(), Field.Store.NO));
var facetDate = new []
{
createdDate.Value.Year.ToString(),
createdDate.Value.Month.ToString(),
createdDate.Value.Day.ToString(),
};
doc.add(new FacetField(FacetNames.Date, facetDate));
doc.add(new TextField(FieldName.HasExifInfo, "t", Field.Store.NO));
double latDouble, lonDouble;
if (ConvertLocationRef(latitude, latRef, longitude, lonRef, out latDouble, out lonDouble))
{
doc.add(new DoubleField(FieldName.Latitude, latDouble, Field.Store.YES));
doc.add(new DoubleField(FieldName.Longitude, lonDouble, Field.Store.YES));
var location = new Location(latDouble, lonDouble);
var placeName = location.PlaceName(Location.PlaceNameFilter.None);
if (placeName != null)
{
if (String.IsNullOrWhiteSpace(placeName))
{
logger.Warn("Unable to get a proper placename for {0} ({1})", filename, location);
}
var city = location.City;
if (city != null)
{
doc.add(new TextField(FieldName.LocationCity, city, Field.Store.YES));
}
if (location.Country != null)
{
doc.add(new TextField(FieldName.LocationCountry, location.Country, Field.Store.YES));
}
var site = location.SiteName;
if (site != null)
{
doc.add(new TextField(FieldName.LocationSite, site, Field.Store.YES));
}
var placeTokens = location.PlaceNameParts(Location.PlaceNameFilter.Detailed, true);
if (placeTokens.Length > 0)
doc.add(new FacetField(FacetNames.PlaceName, placeTokens));
doc.add(new TextField(FieldName.LocationPlaceName, placeName, Field.Store.YES));
doc.add(new TextField(FieldName.LocationStandardName, location.PlaceName(Location.PlaceNameFilter.Standard), Field.Store.YES));
}
else
{
logger.Warn("Unable to get placename for {0} ({1})", filename, location);
}
}
thumbnailIndexer.CheckThumbnail(filename, doc.get(FieldName.MimeType), doc.get(FieldName.Size));
}