public static List <SolrDoc> search(Guid applicationId, string phrase, List <SearchDocType> docTypes, List <Guid> typeIds,
List <string> types, bool additionalId, bool title, bool description, bool tags, bool content, bool fileContent,
bool forceHasContent, int count, int lowerBoundary, bool highlight, ref int totalCount)
{
ISolrOperations <SolrDoc> solr = get_solr_operator();
QueryTerms searchTerms = new QueryTerms(phrase);
List <KeyValuePair <string, double> > fieldBoosts = new List <KeyValuePair <string, double> >();
docTypes = (docTypes == null ? new List <SearchDocType>() : docTypes.Where(d => d != SearchDocType.All)).Distinct().ToList();
if (title)
{
fieldBoosts.Add(new KeyValuePair <string, double>("title", 5));
}
if (tags)
{
fieldBoosts.Add(new KeyValuePair <string, double>("tags", 4));
}
if (description)
{
fieldBoosts.Add(new KeyValuePair <string, double>("description", 3));
}
if (content)
{
fieldBoosts.Add(new KeyValuePair <string, double>("content", 2));
}
if (fileContent)
{
fieldBoosts.Add(new KeyValuePair <string, double>("file_content", 1));
}
if (additionalId)
{
fieldBoosts.Add(new KeyValuePair <string, double>("additional_id", 0));
}
string query = searchTerms.get_query(fieldBoosts, docTypes, typeIds, types, forceHasContent);
QueryOptions queryOptions = new QueryOptions()
{
Rows = count + (count / 2),
StartOrCursor = new StartOrCursor.Start(Math.Max(0, lowerBoundary)),
ExtraParams = new List <KeyValuePair <string, string> >()
{
new KeyValuePair <string, string>("_route_", applicationId.ToString() + "!")
},
Fields = new[] { "id", "search_doc_type", "type_id", "type", "additional_id", "title", "no_content", "deleted" }
};
if (highlight)
{
queryOptions.Highlight = new HighlightingParameters()
{
Fields = fieldBoosts.Where(b => b.Key != "additional_id").Select(b => b.Key).ToArray()
}
}
;
SolrQueryResults <SolrDoc> results = solr.Query(query, queryOptions);
totalCount = results.NumFound;
if (highlight)
{
results.Where(d => results.Highlights.ContainsKey(d.ID)).ToList().ForEach(doc => {
HighlightedSnippets snippets = results.Highlights[doc.ID];
doc.Description = string.Join(" ", snippets.Values.Select(v => string.Join(" ", v)))
.Replace("<em>", "<b>").Replace("</em>", "</b>");
});
}
return(results.ToList());
}
public QueryTerms(string phrase)
{
Terms = QueryTerms.parse(phrase);
}
private static List <string> parse(string phrase)
{
List <string> terms = new List <string>();
if (string.IsNullOrEmpty(phrase))
{
return(terms);
}
phrase = " " + PublicMethods.verify_string(phrase) + " ";
string pattern = "\\s[\\+\\-]?\"[^\"]*\"\\s";
Dictionary <string, string> quotesDic = new Dictionary <string, string>();
MatchCollection matches = null;
while (true)
{
matches = string.IsNullOrEmpty(phrase) ? (MatchCollection)null : (new Regex(pattern)).Matches(phrase);
if (matches == null || matches.Count == 0)
{
break;
}
for (int i = 0; i < matches.Count; i++)
{
string key = PublicMethods.random_string(10);
quotesDic[key] = matches[i].Value;
phrase = phrase.Replace(matches[i].Value.Trim(), " " + key + " ");
}
}
phrase.Split(' ')
.Select(x => x.Trim())
.Where(x => !string.IsNullOrEmpty(x))
.Select(x => quotesDic.ContainsKey(x) ? quotesDic[x].Trim() : x)
.ToList()
.ForEach(x =>
{
string prefix = new[] { "+", "-" }.Where(c => x.StartsWith(c)).FirstOrDefault();
if (!string.IsNullOrEmpty(prefix))
{
x = x.Length > 1 ? x.Substring(1) : string.Empty;
}
if (string.IsNullOrEmpty(x))
{
return;
}
bool isQuote = x[0] == '"' && x[x.Length - 1] == '"';
if (isQuote)
{
if (x.Length <= 2)
{
return;
}
x = x.Substring(1, x.Length - 2).Trim();
}
new[] {
"+", "-", "&", "|", "!", "(", ")", "{", "}", "[", "]", "^", "\"", "~", ":", "/",
"\\", ".", ",", "،", "؛", "؟"
}.ToList().ForEach(c => x = x.Replace(c, " "));
x = x.Trim();
if (string.IsNullOrEmpty(x))
{
return;
}
isQuote = isQuote && x.IndexOf(" ") > 0;
if (isQuote)
{
x = "\"" + x + "\"";
}
if (!string.IsNullOrEmpty(prefix))
{
x = prefix + x;
}
if (!isQuote && x.IndexOf(" ") > 0)
{
terms.AddRange(QueryTerms.parse(x));
}
else
{
if (!isQuote && !(new[] { "?", "*" }).Any(c => x.IndexOf(c) >= 0))
{
x += "~1";
}
else if (isQuote)
{
x += "^";
}
terms.Add(x);
}
});
return(terms.Distinct().Where(t => !string.IsNullOrEmpty(t)).ToList());
}
