/// <summary>
/// Searches for packages based on the configured parameters.
/// </summary>
/// <param name="behavior">The <see cref="CompositeSearchBehavior" /> value.</param>
/// <param name="limit">The limit on the number of matches returned.</param>
/// <returns>A list of <see cref="MatchResult" /> objects.</returns>
protected IReadOnlyList <MatchResult> FindPackages(
CompositeSearchBehavior behavior,
uint limit)
{
PackageCatalog catalog = this.GetPackageCatalog(behavior);
FindPackagesOptions options = this.GetFindPackagesOptions(limit);
return(GetMatchResults(catalog, options));
}
private static void SetQueryInFindPackagesOptions(
ref FindPackagesOptions options,
PackageFieldMatchOption match,
string value)
{
var selector = ComObjectFactory.Value.CreatePackageMatchFilter();
selector.Field = PackageMatchField.CatalogDefault;
selector.Value = value ?? string.Empty;
selector.Option = match;
options.Selectors.Add(selector);
}
private static IReadOnlyList <MatchResult> GetMatchResults(
PackageCatalog catalog,
FindPackagesOptions options)
{
FindPackagesResult result = catalog.FindPackages(options);
if (result.Status == FindPackagesResultStatus.Ok)
{
return(result.Matches);
}
else
{
throw new FindPackagesException(result.Status);
}
}
private static void AddFilterToFindPackagesOptionsIfNotNull(
ref FindPackagesOptions options,
PackageMatchField field,
PackageFieldMatchOption match,
string value)
{
if (value != null)
{
var filter = ComObjectFactory.Value.CreatePackageMatchFilter();
filter.Field = field;
filter.Value = value;
filter.Option = match;
options.Filters.Add(filter);
}
}
private void AddAttributedFiltersToFindPackagesOptions(
ref FindPackagesOptions options,
PackageFieldMatchOption match)
{
IEnumerable <PropertyInfo> properties = this
.GetType()
.GetProperties()
.Where(property => Attribute.IsDefined(property, typeof(FilterAttribute)));
foreach (PropertyInfo info in properties)
{
if (info.GetCustomAttribute(typeof(FilterAttribute), true) is FilterAttribute attribute)
{
PackageMatchField field = attribute.Field;
string value = info.GetValue(this, null) as string;
AddFilterToFindPackagesOptionsIfNotNull(ref options, field, match, value);
}
}
}
