/// <summary>
/// Read all colleciton, indexes and documents inside current datafile
/// Drop per index, per collection and shrink
/// This steps will check/validate all file data
/// </summary>
private void CheckIntegrity()
{
using (var db = new LiteEngine(this.Filename))
{
var cols = db.GetCollectionNames().ToArray();
foreach (var col in cols)
{
var indexes = db.GetIndexes(col).ToArray();
foreach (var idx in indexes)
{
var q = db.Find(col, Query.All(idx.Field));
foreach (var doc in q)
{
// document are ok!
}
// lets drop this index (if not _id)
if (idx.Field != "_id")
{
db.DropIndex(col, idx.Field);
}
}
// and drop collection
db.DropCollection(col);
}
// and now shrink
db.Shrink();
}
}
public void DropCollection_Test()
{
using (var file = new TempFile())
using (var db = new LiteEngine(file.Filename))
{
Assert.IsFalse(db.GetCollectionNames().Any(x => x == "col"));
db.Insert("col", new BsonDocument { { "a", 1 } });
Assert.IsTrue(db.GetCollectionNames().Any(x => x == "col"));
db.DropCollection("col");
Assert.IsFalse(db.GetCollectionNames().Any(x => x == "col"));
}
}
public void DropCollection()
{
using (var file = new TempFile())
using (var db = new LiteEngine(file.Filename))
{
Assert.IsFalse(db.GetCollectionNames().Any(x => x == "col"));
db.Insert("col", new BsonDocument {
{ "a", 1 }
});
Assert.IsTrue(db.GetCollectionNames().Any(x => x == "col"));
db.DropCollection("col");
Assert.IsFalse(db.GetCollectionNames().Any(x => x == "col"));
}
}
public void Shrink_After_DropCollection()
{
using (var file = new TempFile())
using (var db = new LiteEngine(file.Filename))
{
db.InsertBulk("col", GetDocs(1, 10000));
db.DropCollection("col");
// full disk usage
var size = file.Size;
var r = db.Shrink();
// only header page + reserved lock page
Assert.AreEqual(8192, size - r);
}
}
public void Drop()
{
_db.DropCollection("col_bulk");
}
public IEnumerable <BsonValue> Execute(StringScanner s, LiteEngine engine)
{
var col = this.ReadCollection(engine, s);
yield return(engine.DropCollection(col));
}
public void Execute(LiteEngine engine, StringScanner s, Display display, InputCommand input, Env env)
{
var col = this.ReadCollection(engine, s);
display.WriteResult(engine.DropCollection(col));
}
public void Execute(LiteEngine engine, StringScanner s, Display display, InputCommand input, Env env)
{
var col = this.ReadCollection(engine, s);
display.WriteResult(engine.DropCollection(col));
}
