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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.provision;
import java.util.Objects;
/**
* Unique identifier for a Zone; use when referencing them.
*
* Serialised form is 'environment.region'.
*
* @author jvenstad
*/
public class ZoneId {
// TODO: Replace usages of zone + region with usages of this.
private final Environment environment;
private final RegionName region;
private ZoneId(Environment environment, RegionName region) {
this.environment = Objects.requireNonNull(environment);
this.region = Objects.requireNonNull(region);
}
public static ZoneId from(Environment environment, RegionName region) {
return new ZoneId(environment, region);
}
public static ZoneId from(String environment, String region) {
return from(Environment.from(environment), RegionName.from(region));
}
/** Create from a serialised ZoneId. Inverse of {@code ZoneId.value()}. */
public static ZoneId from(String value) {
String[] parts = value.split("\\.");
return from(parts[0], parts[1]);
}
public Environment environment() {
return environment;
}
public RegionName region() {
return region;
}
/** Returns the serialised value of this. Inverse of {@code ZoneId.from(String value)}. */
public String value() {
return environment + "." + region;
}
@Override
public String toString() {
return "zone " + value();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if ( ! (o instanceof ZoneId)) return false;
ZoneId id = (ZoneId) o;
return environment == id.environment &&
Objects.equals(region, id.region);
}
@Override
public int hashCode() {
return Objects.hash(environment, region);
}
}
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