com.datastax.oss.driver.internal.core.metadata.token.ReplicationFactor Maven / Gradle / Ivy
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package com.datastax.oss.driver.internal.core.metadata.token;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import java.util.Objects;
// This class is a subset of server version at org.apache.cassandra.locator.ReplicationFactor
public class ReplicationFactor {
private final int allReplicas;
private final int fullReplicas;
private final int transientReplicas;
public ReplicationFactor(int allReplicas, int transientReplicas) {
this.allReplicas = allReplicas;
this.transientReplicas = transientReplicas;
this.fullReplicas = allReplicas - transientReplicas;
}
public ReplicationFactor(int allReplicas) {
this(allReplicas, 0);
}
public int fullReplicas() {
return fullReplicas;
}
public int transientReplicas() {
return transientReplicas;
}
public boolean hasTransientReplicas() {
return allReplicas != fullReplicas;
}
public static ReplicationFactor fromString(String s) {
if (s.contains("/")) {
int slash = s.indexOf('/');
String allPart = s.substring(0, slash);
String transientPart = s.substring(slash + 1);
return new ReplicationFactor(Integer.parseInt(allPart), Integer.parseInt(transientPart));
} else {
return new ReplicationFactor(Integer.parseInt(s), 0);
}
}
@Override
public String toString() {
return allReplicas + (hasTransientReplicas() ? "/" + transientReplicas() : "");
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof ReplicationFactor)) {
return false;
}
ReplicationFactor that = (ReplicationFactor) o;
return allReplicas == that.allReplicas && fullReplicas == that.fullReplicas;
}
@Override
public int hashCode() {
return Objects.hash(allReplicas, fullReplicas);
}
}