private IEnumerable <FluentColumn> GetColumns(BaseCassandraColumnFamily columnFamily)
{
var schema = ColumnFamily.GetSchema();
var list = new List <FluentColumn>();
var parent = new CassandraColumnParent {
ColumnFamily = columnFamily.FamilyName,
SuperColumn = SuperColumnName
};
SlicePredicate = Helper.SetSchemaForSlicePredicate(SlicePredicate, schema, SuperColumnName == null);
var output = Session.GetClient().get_slice(
Key,
parent,
SlicePredicate,
Session.ReadConsistency
);
foreach (var result in output)
{
var r = Helper.ConvertColumnToFluentColumn(result.Column, schema);
list.Add(r);
}
return(list);
}
public override Void Execute(BaseCassandraColumnFamily columnFamily)
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName,
};
if (SuperColumnName != null)
{
parent.Super_column = SuperColumnName;
}
var column = new Column {
Name = ColumnName,
Value = ColumnValue,
Timestamp = Timestamp.ToTimestamp(),
Ttl = TimeToLive
};
CassandraSession.Current.GetClient().insert(
Key,
parent,
column,
CassandraSession.Current.WriteConsistency
);
return(new Void());
}
public override Void Execute(BaseCassandraColumnFamily columnFamily)
{
var path = new ColumnPath {
Column_family = columnFamily.FamilyName
};
if (SuperColumnName != null)
{
path.Super_column = SuperColumnName;
}
if (ColumnName != null)
{
path.Column = ColumnName;
}
CassandraSession.Current.GetClient().remove(
Key,
path,
DateTimeOffset.Now.ToTimestamp(),
CassandraSession.Current.WriteConsistency
);
return(new Void());
}
private IEnumerable <FluentSuperColumn> GetColumns(BaseCassandraColumnFamily columnFamily)
{
var schema = ColumnFamily.GetSchema();
var parent = new CassandraColumnParent {
ColumnFamily = columnFamily.FamilyName
};
SlicePredicate = Helper.SetSchemaForSlicePredicate(SlicePredicate, schema);
var output = Session.GetClient().get_slice(
Key,
parent,
SlicePredicate,
Session.ReadConsistency
);
foreach (var result in output)
{
var r = Helper.ConvertSuperColumnToFluentSuperColumn(result.Super_column, schema);
columnFamily.Context.Attach(r);
r.MutationTracker.Clear();
yield return(r);
}
}
private IEnumerable <FluentColumnFamily> GetFamilies(BaseCassandraColumnFamily columnFamily)
{
var schema = ColumnFamily.GetSchema();
var parent = new CassandraColumnParent {
ColumnFamily = columnFamily.FamilyName
};
SlicePredicate = Helper.SetSchemaForSlicePredicate(SlicePredicate, schema);
var output = Session.GetClient().get_range_slices(
parent,
SlicePredicate,
KeyRange,
Session.ReadConsistency
);
foreach (var result in output)
{
var r = new FluentColumnFamily(result.Key, columnFamily.FamilyName, columnFamily.GetSchema(), result.Columns.Select(col => {
return(Helper.ConvertColumnToFluentColumn(col.Column, schema));
}));
columnFamily.Context.Attach(r);
r.MutationTracker.Clear();
yield return(r);
}
}
public override IFluentColumnFamily <CompareWith> Execute(BaseCassandraColumnFamily columnFamily)
{
var result = new FluentColumnFamily <CompareWith>(Key, columnFamily.FamilyName, GetColumns(columnFamily));
columnFamily.Context.Attach(result);
result.MutationTracker.Clear();
return(result);
}
internal CassandraSlicePredicateQuery(BaseCassandraColumnFamily family, Expression expression)
{
Family = family;
Expression = expression;
if (Expression == null)
{
Expression = Expression.Constant(this);
}
}
internal CassandraSlicePredicateQuery(CassandraQuerySetup <TResult, CompareWith> setup, BaseCassandraColumnFamily family, Expression expression)
{
Setup = setup;
Family = family;
Expression = expression;
if (Expression == null)
{
Expression = Expression.Constant(this);
}
}
public override Void Execute(BaseCassandraColumnFamily columnFamily)
{
var path = new ColumnPath {
Column_family = columnFamily.FamilyName
};
CassandraSession.Current.GetClient().remove(
Key,
path,
DateTimeOffset.UtcNow.ToTimestamp(),
CassandraSession.Current.WriteConsistency
);
return(new Void());
}
public override IDictionary <BytesType, int> Execute(BaseCassandraColumnFamily columnFamily)
{
CassandraSession _localSession = null;
if (CassandraSession.Current == null)
{
_localSession = new CassandraSession();
}
try
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName
};
if (SuperColumnName != null)
{
parent.Super_column = SuperColumnName;
}
var output = CassandraSession.Current.GetClient().multiget_count(
Keys.ToByteArrayList(),
parent,
SlicePredicate.CreateSlicePredicate(),
CassandraSession.Current.ReadConsistency
);
var results = new Dictionary <BytesType, int>();
foreach (var result in output)
{
results.Add(result.Key, result.Value);
}
return(results);
}
finally
{
if (_localSession != null)
{
_localSession.Dispose();
}
}
}
public override int Execute(BaseCassandraColumnFamily columnFamily)
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName
};
if (SuperColumnName != null)
{
parent.Super_column = SuperColumnName;
}
var result = CassandraSession.Current.GetClient().get_count(
Key,
parent,
SlicePredicate.CreateSlicePredicate(),
CassandraSession.Current.ReadConsistency
);
return(result);
}
public override IEnumerable <IFluentColumnFamily <CompareWith> > Execute(BaseCassandraColumnFamily columnFamily)
{
CassandraSession _localSession = null;
if (CassandraSession.Current == null)
{
_localSession = new CassandraSession();
}
try
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName
};
var output = CassandraSession.Current.GetClient().multiget_slice(
Keys.ToByteArrayList(),
parent,
SlicePredicate.CreateSlicePredicate(),
CassandraSession.Current.ReadConsistency
);
foreach (var result in output)
{
var r = new FluentColumnFamily <CompareWith>(result.Key, columnFamily.FamilyName, result.Value.Select(col => {
return(Helper.ConvertColumnToFluentColumn <CompareWith>(col.Column));
}));
columnFamily.Context.Attach(r);
r.MutationTracker.Clear();
yield return(r);
}
}
finally
{
if (_localSession != null)
{
_localSession.Dispose();
}
}
}
private IEnumerable <IFluentColumn <CompareSubcolumnWith> > GetColumns(BaseCassandraColumnFamily columnFamily)
{
CassandraSession _localSession = null;
if (CassandraSession.Current == null)
{
_localSession = new CassandraSession();
}
try
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName
};
if (SuperColumnName != null)
{
parent.Super_column = SuperColumnName;
}
var output = CassandraSession.Current.GetClient().get_slice(
Key,
parent,
SlicePredicate.CreateSlicePredicate(),
CassandraSession.Current.ReadConsistency
);
foreach (var result in output)
{
var r = Helper.ConvertColumnToFluentColumn <CompareSubcolumnWith>(result.Column);
yield return(r);
}
}
finally
{
if (_localSession != null)
{
_localSession.Dispose();
}
}
}
private IEnumerable <IFluentColumnFamily <CompareWith> > GetFamilies(BaseCassandraColumnFamily columnFamily)
{
CassandraSession _localSession = null;
if (CassandraSession.Current == null)
{
_localSession = new CassandraSession();
}
try
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName
};
var output = CassandraSession.Current.GetClient().get_indexed_slices(
parent,
IndexClause.CreateIndexClause(),
SlicePredicate.CreateSlicePredicate(),
CassandraSession.Current.ReadConsistency
);
foreach (var result in output)
{
var r = new FluentColumnFamily <CompareWith>(result.Key, columnFamily.FamilyName, result.Columns.Select(col => {
return(Helper.ConvertColumnToFluentColumn <CompareWith>(col.Column));
}));
columnFamily.Context.Attach(r);
r.MutationTracker.Clear();
yield return(r);
}
}
finally
{
if (_localSession != null)
{
_localSession.Dispose();
}
}
}
public override IFluentColumn <CompareWith> Execute(BaseCassandraColumnFamily columnFamily)
{
var path = new ColumnPath {
Column_family = columnFamily.FamilyName
};
if (SuperColumnName != null)
{
path.Super_column = SuperColumnName;
}
if (ColumnName != null)
{
path.Column = ColumnName;
}
var output = CassandraSession.Current.GetClient().get(
Key,
path,
CassandraSession.Current.ReadConsistency
);
return((IFluentColumn <CompareWith>)Helper.ConvertToFluentBaseColumn <CompareWith, VoidType>(output));
}
public virtual bool TryExecute(BaseCassandraColumnFamily columnFamily, out TResult result)
{
try
{
result = Execute(columnFamily);
}
catch (Exception exc)
{
Debug.WriteLine(exc);
string message = exc.Message;
if (exc is InvalidRequestException)
{
message = ((InvalidRequestException)exc).Why;
}
result = default(TResult);
HasError = true;
Error = new CassandraException(message, exc);
}
return(!HasError);
}
public override Void Execute(BaseCassandraColumnFamily columnFamily)
{
CassandraSession.Current.GetClient().truncate(columnFamily.FamilyName);
return(new Void());
}
public abstract TResult Execute(BaseCassandraColumnFamily columnFamily);
public override IEnumerable <IFluentSuperColumn <CompareWith, CompareSubcolumnWith> > Execute(BaseCassandraColumnFamily columnFamily)
{
CassandraSession _localSession = null;
if (CassandraSession.Current == null)
{
_localSession = new CassandraSession();
}
try
{
var parent = new ColumnParent {
Column_family = columnFamily.FamilyName
};
if (SuperColumnName != null)
{
parent.Super_column = SuperColumnName;
}
var output = CassandraSession.Current.GetClient().get_range_slices(
parent,
SlicePredicate.CreateSlicePredicate(),
KeyRange.CreateKeyRange(),
CassandraSession.Current.ReadConsistency
);
foreach (var result in output)
{
var r = new FluentSuperColumn <CompareWith, CompareSubcolumnWith>(result.Columns.Select(col => {
return(Helper.ConvertColumnToFluentColumn <CompareSubcolumnWith>(col.Column));
}));
columnFamily.Context.Attach(r);
r.MutationTracker.Clear();
yield return(r);
}
}
finally
{
if (_localSession != null)
{
_localSession.Dispose();
}
}
}
public override IEnumerable <IFluentColumnFamily <CompareWith> > Execute(BaseCassandraColumnFamily columnFamily)
{
return(GetFamilies(columnFamily));
}
public override FluentSuperColumn <CompareWith, CompareSubcolumnWith> Execute(BaseCassandraColumnFamily columnFamily)
{
var result = new FluentSuperColumn <CompareWith, CompareSubcolumnWith>(GetColumns(columnFamily));
columnFamily.Context.Attach(result);
result.MutationTracker.Clear();
return(result);
}
