public string UpdateColumnFamily(Server server, CfDef definition)
{
_cachedKeyspaceDescription = null;
using (var session = new CassandraSession(new ConnectionBuilder(KeyspaceName, server.Host, server.Port)))
return(session.GetClient().system_update_column_family(definition));
}
public string UpdateColumnFamily(CfDef definition)
{
Keyspace.ClearCachedKeyspaceSchema();
return(ExecuteOperation(new SimpleOperation <string>(ctx => {
return ctx.Session.GetClient().system_update_column_family(definition);
})));
}
public static CfDef ToCfDefFromColumnFamily(ColumnFamily cf)
{
CfDef cfdef = new CfDef();
cfdef.Name = cf.Name;
cfdef.Keyspace = cf.Keyspace;
return(cfdef);
}
public static ColumnFamily ToColumnFamilyFromCfDef(CfDef cfdef)
{
ColumnFamily cf = new ColumnFamily();
cf.Name = cfdef.Name;
cf.Keyspace = cfdef.Keyspace;
return(cf);
}
public static CfDef ToCassandraCfDef(this ColumnFamily columnFamily, string keyspace)
{
if (columnFamily == null)
{
return(null);
}
var result = new CfDef
{
Id = columnFamily.Id,
Name = columnFamily.Name,
Keyspace = keyspace,
Column_type = "Standard",
Comparator_type = columnFamily.ComparatorType.ToString(),
Caching = columnFamily.ToCassandraCachingValue()
};
if (columnFamily.Compression != null)
{
result.Compression_options = columnFamily.Compression.ToCassandraCompressionDef();
}
if (columnFamily.GCGraceSeconds.HasValue)
{
result.Gc_grace_seconds = columnFamily.GCGraceSeconds.Value;
}
if (columnFamily.ReadRepairChance != null)
{
result.Read_repair_chance = columnFamily.ReadRepairChance.Value;
}
var compactionStrategy = columnFamily.CompactionStrategy;
if (compactionStrategy != null)
{
result.Compaction_strategy = compactionStrategy.CompactionStrategyType.ToStringValue();
result.Compaction_strategy_options = compactionStrategy.CompactionStrategyOptions.ToCassandraCompactionStrategyOptions();
}
if (columnFamily.BloomFilterFpChance.HasValue)
{
result.Bloom_filter_fp_chance = columnFamily.BloomFilterFpChance.Value;
}
if (columnFamily.DefaultTtl.HasValue)
{
result.Default_time_to_live = columnFamily.DefaultTtl.Value;
}
return(result);
}
public static ColumnFamily FromCassandraCfDef(this CfDef cfDef)
{
if (cfDef == null)
{
return(null);
}
var result = new ColumnFamily
{
Name = cfDef.Name,
Id = cfDef.Id,
ComparatorType = new ColumnComparatorType(cfDef.Comparator_type)
};
if (cfDef.__isset.gc_grace_seconds)
{
result.GCGraceSeconds = cfDef.Gc_grace_seconds;
}
if (cfDef.__isset.caching)
{
result.Caching = cfDef.Caching.ToColumnFamilyCaching();
}
if (cfDef.__isset.read_repair_chance)
{
result.ReadRepairChance = cfDef.Read_repair_chance;
}
if (cfDef.Compression_options != null)
{
result.Compression = cfDef.Compression_options.FromCassandraCompressionOptions();
}
var compactionStrategyType = cfDef.Compaction_strategy.FromStringValue <CompactionStrategyType>();
var compactionStrategyOptions = cfDef.Compaction_strategy_options.FromCassandraCompactionStrategyOptions();
result.CompactionStrategy = new CompactionStrategy(compactionStrategyType, compactionStrategyOptions);
if (cfDef.__isset.bloom_filter_fp_chance)
{
result.BloomFilterFpChance = cfDef.Bloom_filter_fp_chance;
}
if (cfDef.__isset.default_time_to_live)
{
result.DefaultTtl = cfDef.Default_time_to_live;
}
return(result);
}
public CassandraColumnFamilySchema(CfDef def)
{
_def = def;
KeyspaceName = def.Keyspace;
var familyType = ColumnType.Standard;
Enum.TryParse <ColumnType>(def.Column_type, out familyType);
var defaultKeyValueType = CassandraType.GetCassandraType(def.Key_validation_class);
var defaultColumnValueType = CassandraType.GetCassandraType(def.Default_validation_class);
CassandraType columnNameType, superColumnNameType;
if (familyType == ColumnType.Super)
{
superColumnNameType = CassandraType.GetCassandraType(def.Comparator_type);
columnNameType = CassandraType.GetCassandraType(def.Subcomparator_type);
}
else
{
superColumnNameType = null;
columnNameType = CassandraType.GetCassandraType(def.Comparator_type);
}
FamilyType = familyType;
FamilyName = def.Name;
FamilyDescription = def.Comment;
KeyName = CassandraObject.GetCassandraObjectFromDatabaseByteArray(def.Key_alias, DefaultKeyNameType);
KeyValueType = defaultKeyValueType;
SuperColumnNameType = superColumnNameType;
ColumnNameType = columnNameType;
DefaultColumnValueType = defaultColumnValueType;
Columns = def.Column_metadata.Select(col => new CassandraColumnSchema(col, columnNameType)).ToList();
}
