public static AbstractReplicationStrategy getReplicationStrategy(Schema schema) {
if (schema.getReplicationProperties() == null) return defaultReplicationStrategy;
AbstractReplicationStrategy replicationStrategy = replicationStrategys.get(schema);
if (replicationStrategy == null) {
HashMap<String, String> map = new HashMap<>(schema.getReplicationProperties());
String className = map.remove("class");
if (className == null) {
throw new ConfigurationException("Missing replication strategy class");
}
replicationStrategy =
AbstractReplicationStrategy.createReplicationStrategy(
schema.getFullName(),
AbstractReplicationStrategy.getClass(className),
StorageService.instance.getTokenMetaData(),
DatabaseDescriptor.getEndpointSnitch(),
map);
schema.setReplicationPropertiesChangeListener(INSTANCE);
replicationStrategys.put(schema, replicationStrategy);
}
return replicationStrategy;
}
public class Keyspace implements ReplicationPropertiesChangeListener {
private static final Keyspace INSTANCE = new Keyspace();
private static final HashMap<Schema, AbstractReplicationStrategy> replicationStrategys =
new HashMap<>();
private static final AbstractReplicationStrategy defaultReplicationStrategy =
DatabaseDescriptor.getDefaultReplicationStrategy();
public static AbstractReplicationStrategy getReplicationStrategy(Schema schema) {
if (schema.getReplicationProperties() == null) return defaultReplicationStrategy;
AbstractReplicationStrategy replicationStrategy = replicationStrategys.get(schema);
if (replicationStrategy == null) {
HashMap<String, String> map = new HashMap<>(schema.getReplicationProperties());
String className = map.remove("class");
if (className == null) {
throw new ConfigurationException("Missing replication strategy class");
}
replicationStrategy =
AbstractReplicationStrategy.createReplicationStrategy(
schema.getFullName(),
AbstractReplicationStrategy.getClass(className),
StorageService.instance.getTokenMetaData(),
DatabaseDescriptor.getEndpointSnitch(),
map);
schema.setReplicationPropertiesChangeListener(INSTANCE);
replicationStrategys.put(schema, replicationStrategy);
}
return replicationStrategy;
}
private Keyspace() {}
@Override
public void replicationPropertiesChanged(Schema schema) {
replicationStrategys.remove(schema);
getReplicationStrategy(schema);
}
}
@Override
public double getPhiConvictThreshold() {
return DatabaseDescriptor.getPhiConvictThreshold();
}
@Override
public void setPhiConvictThreshold(double phi) {
DatabaseDescriptor.setPhiConvictThreshold(phi);
}