protected Query CreateQueryFromTerm(string term)
{
Query query = null;
if (!string.IsNullOrEmpty(term))
{
// Single and ranged numeric value search on Id field
if (term.Trim().StartsWith("Id"))
{
QueryParser parser = new NumericQueryParser(Lucene.Net.Util.Version.LUCENE_30, "Id", new PersonAnalyzer());
query = parser.Parse(term);
}
else if (term.Trim().StartsWith("IsRestrictedProfile"))
{
QueryParser parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, "IsRestrictedProfile", new PersonAnalyzer());
query = parser.Parse(term);
}
else
{
BooleanQuery topQuery = new BooleanQuery();
// manually construct a wildcard query for each search term for more results
foreach (string termToken in term.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries))
{
BooleanQuery termTokenQuery = new BooleanQuery();
foreach (string field in new string[] { "Name", "MilitaryIDNumber", "Rank", "Function" })
{
string txt = termToken.ToLower();
// perform filtering of non-alphanumeric chars for MilitaryIDNumber field (this would also
// be done via PersonAnalyzer, if we were using a QueryParser to construct the Query).
if (string.Equals("MilitaryIDNumber", field))
{
txt = new string(txt.ToCharArray()
.Where(x => char.IsLetterOrDigit(x))
.ToArray());
}
// default similarity of 0.5 = max edit distance of 2
if (!string.Equals("MilitaryIDNumber", field))
{
termTokenQuery.Add(new FuzzyQuery(new Term(field, txt)), Occur.SHOULD);
}
txt = "*" + txt + "*";
termTokenQuery.Add(new WildcardQuery(new Term(field, txt)), Occur.SHOULD);
}
topQuery.Add(termTokenQuery, Occur.SHOULD);
}
query = topQuery;
}
log.Debug("Search query: " + query.ToString());
}
return(query);
}
// See UnitIndexer.cs for details on how fields were originally indexed.
public IList <LuceneSearchResult> Search(string term, int numResults)
{
using (SearcherManager manager = new SearcherManager(UnitIndexWriterSingleton.Instance))
{
this.searcher = manager.Acquire().Searcher;
QueryParser parser;
if (!string.IsNullOrEmpty(term) && term.Trim().StartsWith("Id"))
{
// Single and ranged numeric value search on Id field
parser = new NumericQueryParser(Lucene.Net.Util.Version.LUCENE_30, "Id", new PersonAnalyzer());
}
else
{
// General search across text fields
parser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_30,
new string[] { "Name", "ParentNameChange", "ChildNameChange", "BackgroundInformation", "Organization" },
new PersonAnalyzer());
// We maintain OR as default for maximum results
parser.DefaultOperator = QueryParser.Operator.OR;
if (!string.IsNullOrEmpty(term))
{
if (!term.Contains(':'))
{
// Edit user's search string and add wildcards.
term = string.Join(" ", term.Split(new string[] { " " }, System.StringSplitOptions.RemoveEmptyEntries)
.Select(x => "*" + x + "*")
.ToArray()
);
}
}
}
parser.AllowLeadingWildcard = true;
try
{
Query query = parser.Parse(term);
log.Debug("Search query: " + query.ToString());
this.topDocs = this.searcher.Search(query, numResults);
return(TransformTopDocs());
}
catch (ParseException e)
{
log.Error("Encountered problem parsing the search term: " + term, e);
return(new List <LuceneSearchResult>());
}
}
}
public IList <LuceneSearchResult> Search(string term, int numResults, AdminUser user, string sortField, bool descending)
{
using (SearcherManager manager = new SearcherManager(RequestIndexWriterSingleton.Instance))
{
this.searcher = manager.Acquire().Searcher;
Query query = null;
if (string.IsNullOrEmpty(term))
{
query = new MatchAllDocsQuery();
}
else
{
QueryParser parser;
if (term.Trim().StartsWith("Id"))
{
// Single and ranged numeric value search on Id field
parser = new NumericQueryParser(Lucene.Net.Util.Version.LUCENE_30, "Id", new KeywordAnalyzer());
}
else
{
// General search across text fields
parser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_30,
new string[] { "ReferenceNumber", "RequestName", "RequestEntity", "RequestType", "CurrentStatus" },
new LowerCaseAnalyzer());
parser.DefaultOperator = QueryParser.Operator.AND;
if (!string.IsNullOrEmpty(term))
{
if (!term.Contains(':'))
{
// Edit user's search string and add wildcards.
term = string.Join(" ", term.Split(new string[] { " " }, System.StringSplitOptions.RemoveEmptyEntries)
.Select(x => "*" + x + "*")
.ToArray()
);
}
}
}
parser.AllowLeadingWildcard = true;
try
{
query = parser.Parse(term);
}
catch (ParseException e)
{
log.Error("Encountered problem parsing the search term: " + term, e);
return(new List <LuceneSearchResult>());
}
}
// when given a user, assumes results must be filtered
if (user != null && user.GetRequestEntity() != null)
{
BooleanQuery bq = new BooleanQuery();
bq.Add(query, Occur.MUST);
BooleanQuery bq2 = new BooleanQuery();
bq2.Add(new TermQuery(new Term("RequestEntity", user.GetRequestEntity().RequestEntityName)), Occur.SHOULD);
bq2.Add(new TermQuery(new Term("CreatorRequestEntity", user.GetRequestEntity().RequestEntityName)), Occur.SHOULD);
bq2.Add(new TermQuery(new Term("Creator", user.UserID)), Occur.SHOULD);
bq.Add(bq2, Occur.MUST);
query = bq;
}
log.Debug("Search query: " + query.ToString());
this.PerformSearch(query, numResults, sortField, descending);
return(TransformTopDocs());
}
}
public IList <LuceneSearchResult> Search(string term, DateTime?start, DateTime?end, int numResults, string sortField, bool descending)
{
using (SearcherManager manager = new SearcherManager(EventIndexWriterSingleton.Instance))
{
this.searcher = manager.Acquire().Searcher;
QueryParser parser;
if (!string.IsNullOrEmpty(term) && term.Trim().StartsWith("Id"))
{
// Single and ranged numeric value search on Id field
parser = new NumericQueryParser(Lucene.Net.Util.Version.LUCENE_30, "Id", new KeywordAnalyzer());
}
else
{
// General search across text fields
parser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_30,
new string[] { "Name", "JhroCaseNumber", "Violation", "NarrativeEn", "NarrativeFr", "Location", "Notes", "StartDateDisplay", "EndDateDisplay" },
new LowerCaseAnalyzer());
parser.DefaultOperator = QueryParser.Operator.AND;
if (!string.IsNullOrEmpty(term))
{
if (!term.Contains(':'))
{
// Edit user's search string and add wildcards.
term = string.Join(" ", term.Split(new string[] { " " }, System.StringSplitOptions.RemoveEmptyEntries)
.Select(x => "*" + x + "*")
.ToArray()
);
}
}
}
parser.AllowLeadingWildcard = true;
try
{
Query query = null;
if (!string.IsNullOrEmpty(term))
{
query = parser.Parse(term);
}
if (start.HasValue || end.HasValue)
{
long?min = null;
if (start.HasValue)
{
min = start.Value.Ticks;
}
long?max = null;
if (end.HasValue)
{
max = end.Value.Ticks;
}
BooleanQuery bq = new BooleanQuery();
if (query != null)
{
bq.Add(query, Occur.MUST);
}
BooleanQuery bq2 = new BooleanQuery();
bq2.Add(NumericRangeQuery.NewLongRange("StartDateSearch", min, max, true, true), Occur.SHOULD);
bq2.Add(NumericRangeQuery.NewLongRange("EndDateSearch", min, max, true, true), Occur.SHOULD);
bq.Add(bq2, Occur.MUST);
query = bq;
}
log.Debug("Search query: " + query.ToString());
this.PerformSearch(query, numResults, sortField, descending);
return(TransformTopDocs());
}
catch (ParseException e)
{
log.Error("Encountered problem parsing the search term: " + term, e);
return(new List <LuceneSearchResult>());
}
}
}
