public Column GetColumn(string key, ColumnPath columnPath)
{
AssertColumnPath(columnPath);
var op = new Operation <Column>(ClientCounter.READ_FAIL);
op.Handler = client =>
{
try
{
var cosc = client.get(Name, key, columnPath.ToThrift(), ConsistencyLevel.ToThrift());
return(cosc == null ? null : cosc.Column.ToModel());
}
catch (Apache.Cassandra.NotFoundException ex)
{
op.Error = new NotFoundException("Column Not Found: key: " + key + ", " + columnPath.ToString(), ex);
}
return(null);
};
OperateWithFailover(op);
if (op.HasError)
{
throw op.Error;
}
return(op.Result);
}
public int GetCount(string key, ColumnParent columnParent)
{
var op = new Operation <int>(ClientCounter.READ_FAIL,
client =>
{
return(client.get_count(Name, key, columnParent.ToThrift(), ConsistencyLevel.ToThrift()));
});
OperateWithFailover(op);
return(op.Result);
}
public void Remove(string key, ColumnPath columnPath)
{
var op = new VoidOperation(ClientCounter.WRITE_FAIL,
client =>
{
client.remove(Name, key, columnPath.ToThrift(), Util.UnixTimestamp, ConsistencyLevel.ToThrift());
}
);
OperateWithFailover(op);
}
public IEnumerable <SuperColumn> GetSuperSlice(string key, ColumnParent columnParent, SlicePredicate predicate)
{
var op = new Operation <IEnumerable <SuperColumn> >(ClientCounter.READ_FAIL,
client =>
{
return(client.get_slice(Name, key, columnParent.ToThrift(), predicate.ToThrift(), ConsistencyLevel.ToThrift())
.Transform(c => c.Super_column.ToModel()));
});
OperateWithFailover(op);
return(op.Result);
}
//Override
public SuperColumn GetSuperColumn(string key, ColumnPath columnPath, bool reversed, int size)
{
AssertSuperColumnPath(columnPath);
var sliceRange = new Apache.Cassandra.SliceRange(reversed, size);
var op = new Operation <SuperColumn>(ClientCounter.READ_FAIL,
client =>
{
var columnParent = new Apache.Cassandra.ColumnParent(columnPath.ColumnFamily, columnPath.SuperColumn);
var predicate = new Apache.Cassandra.SlicePredicate(null, sliceRange);
var data = client.get_slice(Name, key, columnParent, predicate, ConsistencyLevel.ToThrift());
return(new SuperColumn(columnPath.SuperColumn, GetColumnList(data)));
});
OperateWithFailover(op);
return(op.Result);
}
public void BatchInsert(string key, IDictionary <string, IList <Column> > columnMap, IDictionary <string, IList <SuperColumn> > superColumnMap)
{
if (columnMap == null && superColumnMap == null)
{
throw new Exception("columnMap and SuperColumnMap can not be null at same time");
}
var cfmap = new Dictionary <string, List <Apache.Cassandra.ColumnOrSuperColumn> >();
if (columnMap != null)
{
foreach (var map in columnMap)
{
cfmap.Add(map.Key, GetSoscList(map.Value));
}
}
if (superColumnMap != null)
{
foreach (var map in superColumnMap)
{
cfmap.Add(map.Key, GetSoscSuperList(map.Value));
}
}
var op = new VoidOperation(ClientCounter.WRITE_FAIL,
client => client.batch_insert(Name, key, cfmap, ConsistencyLevel.ToThrift())
);
OperateWithFailover(op);
}
public void Insert(string key, ColumnPath columnPath, byte[] value)
{
AssertColumnPath(columnPath);
var op = new VoidOperation(ClientCounter.WRITE_FAIL,
client =>
{
client.insert(Name, key, columnPath.ToThrift(), value, Util.UnixTimestamp, ConsistencyLevel.ToThrift());
});
OperateWithFailover(op);
}
public IDictionary <string, IList <SuperColumn> > GetSuperRangeSlice(ColumnParent columnParent, SlicePredicate predicate, string start, string finish, int count)
{
var op = new Operation <IDictionary <string, IList <SuperColumn> > >(ClientCounter.READ_FAIL,
client =>
{
var result = new Dictionary <string, IList <SuperColumn> >();
var keySlices = client.get_range_slice(Name, columnParent.ToThrift(), predicate.ToThrift(), start, finish, count, ConsistencyLevel.ToThrift());
if (keySlices == null || keySlices.Count == 0)
{
return(result);
}
foreach (var entry in keySlices.Transform(entry => new { entry.Key, Columns = GetSuperColumnList(entry.Columns) }))
{
result.Add(entry.Key, entry.Columns);
}
return(result);
}
);
OperateWithFailover(op);
return(op.Result);
}
public IDictionary <string, IList <SuperColumn> > MultigetSuperSlice(IList <string> keys, ColumnParent columnParent, SlicePredicate predicate)
{
var op = new Operation <IDictionary <string, IList <SuperColumn> > >(ClientCounter.READ_FAIL,
client =>
{
var result = new Dictionary <string, IList <SuperColumn> >();
var cfmap = client.multiget_slice(Name, new List <string>(keys), columnParent.ToThrift(), predicate.ToThrift(), ConsistencyLevel.ToThrift());
if (string.IsNullOrEmpty(columnParent.SuperColumn))
{
foreach (var entry in cfmap.Transform(m => new { m.Key, List = GetSuperColumnList(m.Value) }))
{
result.Add(entry.Key, entry.List);
}
}
else
{
foreach (var entry in cfmap.Transform(m =>
new
{
m.Key,
List = new List <SuperColumn>
{
new SuperColumn(columnParent.SuperColumn, GetColumnList(m.Value))
}
}))
{
result.Add(entry.Key, entry.List);
}
}
return(result);
}
);
OperateWithFailover(op);
return(op.Result);
}
public IDictionary <string, Column> MultigetColumn(IList <string> keys, ColumnPath columnPath)
{
AssertColumnPath(columnPath);
var op = new Operation <IDictionary <string, Column> >(ClientCounter.READ_FAIL,
client =>
{
var result = new Dictionary <string, Column>();
var cfmap = client.multiget(Name, new List <string>(keys), columnPath.ToThrift(), ConsistencyLevel.ToThrift());
foreach (var entry in cfmap.Transform(entry => new { entry.Key, Column = entry.Value.Column.ToModel() }))
{
result.Add(entry.Key, entry.Column);
}
return(result);
});
OperateWithFailover(op);
return(op.Result);
}
