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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.application;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.NodeType;
import java.util.Arrays;
import java.util.List;
/**
* This represents a system-level application in hosted Vespa. E.g. the zone-application.
*
* @author mpolden
*/
public enum SystemApplication {
// Note that the enum declaration order decides the upgrade order
configServerHost(ApplicationId.from("hosted-vespa", "configserver-host", "default"), NodeType.confighost),
proxyHost(ApplicationId.from("hosted-vespa", "proxy-host", "default"), NodeType.proxyhost),
configServer(ApplicationId.from("hosted-vespa", "zone-config-servers", "default"), NodeType.config),
zone(ApplicationId.from("hosted-vespa", "routing", "default"), NodeType.proxy);
private final ApplicationId id;
private final NodeType nodeType;
SystemApplication(ApplicationId id, NodeType nodeType) {
this.id = id;
this.nodeType = nodeType;
}
public ApplicationId id() {
return id;
}
/** The type of nodes that will be allocated to this */
public NodeType nodeType() {
return nodeType;
}
/** Returns whether this system application has an application package */
public boolean hasApplicationPackage() {
return nodeType == NodeType.proxy;
}
/** Returns whether this system application must be upgraded in the declared order */
public boolean upgradeInOrder() {
return nodeType != NodeType.confighost && nodeType != NodeType.proxyhost;
}
/** All known system applications */
public static List<SystemApplication> all() {
return Arrays.asList(values());
}
@Override
public String toString() {
return String.format("system application %s of type %s", id, nodeType);
}
}
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