static IEnumerable <Tuple <string, string> > ListCollections(MongoDatabase sourceServer, List <string> collections, string targetCollection)
{
// Forcing targetcollection to be null if it's empty
if (targetCollection == "")
{
targetCollection = null;
}
if (collections == null || collections.Count == 0)
{
foreach (var c in sourceServer.GetCollectionNames())
{
yield return(Tuple.Create(c, c));
}
}
else
{
var list = sourceServer.GetCollectionNames().ToList();
var hashOrdinal = new HashSet <string> (list, StringComparer.Ordinal);
foreach (var c in collections)
{
if (hashOrdinal.Contains(c))
{
yield return(Tuple.Create(c, (targetCollection ?? c)));
}
else if (c.IndexOf('=') > 0)
{
var split = c.Split('=');
var k = split[0];
var col = hashOrdinal.Contains(k) ? k : list.FirstOrDefault(name => k.Equals(name, StringComparison.OrdinalIgnoreCase));
if (!String.IsNullOrEmpty(col) && !String.IsNullOrEmpty(split[1]))
{
yield return(Tuple.Create(col, split[1]));
}
}
else
{
foreach (var col in list.Where(name => SharedMethods.WildcardIsMatch(c, name, true)))
{
yield return(Tuple.Create(col, (targetCollection ?? c)));
}
}
}
}
}
static IEnumerable <Tuple <MongoDatabase, MongoDatabase> > ListDatabases(MongoServer sourceServer, MongoServer targetServer, List <string> sourceDatabases, List <string> targetDatabases)
{
if (sourceDatabases == null)
{
yield break;
}
if (targetDatabases == null || targetDatabases.Count == 0)
{
targetDatabases = null;
}
// check if we are on the same server!
bool sameServer = ServersAreEqual(sourceServer, targetServer);
// prepare available databases list
var databases = sourceServer.GetDatabaseNames().ToList();
var availableDatabases = new HashSet <string> (databases, StringComparer.Ordinal);
// create mappings
if (targetDatabases == null)
{
for (int i = 0; i < sourceDatabases.Count; i++)
{
string k = sourceDatabases[i];
if (k.IndexOf('=') > 0)
{
var split = k.Split('=');
k = split[0];
var db = availableDatabases.Contains(k) ? k : databases.FirstOrDefault(name => k.Equals(name, StringComparison.OrdinalIgnoreCase));
// check if database was found
if (String.IsNullOrEmpty(db) || String.IsNullOrEmpty(split[1]))
{
continue;
}
yield return(Tuple.Create(sourceServer.GetDatabase(db), targetServer.GetDatabase(split[1])));
}
else
{
foreach (var db in databases.Where(name => SharedMethods.WildcardIsMatch(k, name, true)))
{
yield return(Tuple.Create(sourceServer.GetDatabase(db), targetServer.GetDatabase(db)));
}
}
}
}
else
{
// match
for (int i = 0; i < sourceDatabases.Count; i++)
{
string k = sourceDatabases[i];
var db = availableDatabases.Contains(k) ? k : databases.FirstOrDefault(name => k.Equals(name, StringComparison.OrdinalIgnoreCase));
// check if database was found
if (String.IsNullOrEmpty(db) || String.IsNullOrEmpty(targetDatabases[i]))
{
continue;
}
yield return(Tuple.Create(sourceServer.GetDatabase(db), targetServer.GetDatabase(targetDatabases[i])));
}
}
}
