io.stargate.sgv2.api.common.cql.builder.Replication Maven / Gradle / Ivy
/*
* Copyright DataStax, Inc. and/or The Stargate Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.stargate.sgv2.api.common.cql.builder;
import static java.lang.String.format;
import java.util.Map;
/**
* Represents a keyspace replication string.
*
* So something like "{ 'class': 'SimpleStrategy', 'replication_factor': 1}".
*/
public class Replication {
private final String replication;
private Replication(String replication) {
this.replication = replication;
}
public static Replication simpleStrategy(int replicationFactor) {
return new Replication(
format("{ 'class': 'SimpleStrategy', 'replication_factor': %d }", replicationFactor));
}
public static Replication networkTopologyStrategy(
Map dataCenterReplicationFactors) {
StringBuilder sb = new StringBuilder();
sb.append("{ 'class': 'NetworkTopologyStrategy'");
for (Map.Entry entry : dataCenterReplicationFactors.entrySet()) {
String dcName = entry.getKey();
int dcReplication = entry.getValue();
sb.append(", '").append(dcName).append("': ").append(dcReplication);
}
sb.append(" }");
return new Replication(sb.toString());
}
@Override
public String toString() {
return replication;
}
}