KSMetaData(
String name,
Class<? extends AbstractReplicationStrategy> strategyClass,
Map<String, String> strategyOptions,
boolean durableWrites,
Iterable<CFMetaData> cfDefs) {
this.name = name;
this.strategyClass = strategyClass == null ? NetworkTopologyStrategy.class : strategyClass;
this.strategyOptions = strategyOptions;
Map<String, CFMetaData> cfmap = new HashMap<String, CFMetaData>();
for (CFMetaData cfm : cfDefs) cfmap.put(cfm.cfName, cfm);
this.cfMetaData = Collections.unmodifiableMap(cfmap);
this.durableWrites = durableWrites;
}
/**
* Deserialize ColumnFamilies from low-level schema representation, all of them belong to the same
* keyspace
*
* @param row
* @return map containing name of the ColumnFamily and it's metadata for faster lookup
*/
public static Map<String, CFMetaData> deserializeColumnFamilies(Row row) {
if (row.cf == null) return Collections.emptyMap();
Map<String, CFMetaData> cfms = new HashMap<String, CFMetaData>();
UntypedResultSet results =
QueryProcessor.resultify("SELECT * FROM system.schema_columnfamilies", row);
for (UntypedResultSet.Row result : results) {
CFMetaData cfm = CFMetaData.fromSchema(result);
cfms.put(cfm.cfName, cfm);
}
for (CFMetaData cfm : cfms.values()) {
Row columnRow = ColumnDefinition.readSchema(cfm.ksName, cfm.cfName);
for (ColumnDefinition cd : ColumnDefinition.fromSchema(columnRow, cfm))
cfm.column_metadata.put(cd.name, cd);
}
return cfms;
}
public static Map<String, String> optsWithRF(final Integer rf) {
Map<String, String> ret = new HashMap<String, String>();
ret.put("replication_factor", rf.toString());
return ret;
}