public static IQueryable<Package> Search(this IQueryable<Package> source, string searchTerm)
{
// Split the search terms by spaces
var terms = (searchTerm ?? String.Empty).Split();
// Build a list of expressions for each term
var expressions = new List<LambdaExpression>();
foreach (var criteria in searchCriteria)
{
foreach (var term in terms)
{
expressions.Add(criteria(term));
}
}
// Build a giant or statement using the bodies of the lambdas
var body = expressions.Select(p => p.Body)
.Aggregate(Expression.OrElse);
// Now build the final predicate
var parameterExpr = Expression.Parameter(typeof(Package));
// Fix up the body to use our parameter expression
body = new ParameterExpressionReplacer(parameterExpr).Visit(body);
// Build the final predicate
var predicate = Expression.Lambda<Func<Package, bool>>(body, parameterExpr);
// Apply it to the query
return source.Where(predicate);
}
public static IQueryable<Package> Search(this IQueryable<Package> source, string searchTerm)
{
if (String.IsNullOrWhiteSpace(searchTerm))
{
return source;
}
// Split the search terms by spaces
var terms = (searchTerm ?? String.Empty).Split();
// Build a list of expressions for each term
var expressions = new List<LambdaExpression>();
foreach (var term in terms)
{
var localSearchTerm = term.to_lower();
if (localSearchTerm.StartsWith("id:"))
{
expressions.Add(idCriteria(localSearchTerm.Replace("id:", string.Empty)));
}
if (localSearchTerm.StartsWith("author:"))
{
expressions.Add(authorCriteria(localSearchTerm.Replace("author:", string.Empty)));
}
else if (localSearchTerm.StartsWith("tag:"))
{
expressions.Add(tagCriteria(localSearchTerm.Replace("tag:", string.Empty)));
} else
{
foreach (var criteria in searchCriteria)
{
expressions.Add(criteria(localSearchTerm));
}
}
}
//todo this becomes an AND
// Build a giant or statement using the bodies of the lambdas
var body = expressions.Select(p => p.Body)
.Aggregate(Expression.OrElse);
// Now build the final predicate
var parameterExpr = Expression.Parameter(typeof(Package));
// Fix up the body to use our parameter expression
body = new ParameterExpressionReplacer(parameterExpr).Visit(body);
// Build the final predicate
var predicate = Expression.Lambda<Func<Package, bool>>(body, parameterExpr);
// Apply it to the query
return source.Where(predicate);
}
public override IEnumerable<object[]> GetData(MethodInfo testMethod)
{
var folderNames = new List<object[]>
{
new object[] { Constants.PackagesFolderName, true },
new object[] { Constants.UploadsFolderName, false }
};
if (!IncludePermissions)
{
folderNames = folderNames.Select(fn => new[] { fn.ElementAt(0) }).ToList();
}
return folderNames;
}
private static void AddPackages(List<PackageIndexEntity> packages, bool creatingIndex)
{
if (!creatingIndex)
{
// If this is not the first time we're creating the index, clear any package registrations for packages we are going to updating.
var packagesToDelete = from packageRegistrationKey in packages.Select(p => p.PackageRegistrationKey).Distinct()
select new Term("PackageRegistrationKey", packageRegistrationKey.ToString(CultureInfo.InvariantCulture));
indexWriter.DeleteDocuments(packagesToDelete.ToArray());
}
// As per http://stackoverflow.com/a/3894582. The IndexWriter is CPU bound, so we can try and write multiple packages in parallel.
// The IndexWriter is thread safe and is primarily CPU-bound.
Parallel.ForEach(packages, AddPackage);
indexWriter.Commit();
}
public override IEnumerable<object[]> GetData(
MethodInfo methodUnderTest,
Type[] parameterTypes)
{
var folderNames = new List<object[]>
{
new object[] { Const.PackagesFolderName, true },
new object[] { Const.UploadsFolderName, false }
};
if (!IncludePermissions)
folderNames = folderNames.Select(fn => new object[] { fn.ElementAt(0) }).ToList();
return folderNames;
}
