com.vmware.xenon.common.NodeSelectorState Maven / Gradle / Ivy
/*
* Copyright (c) 2014-2015 VMware, Inc. All Rights Reserved.
*
* 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 com.vmware.xenon.common;
import java.util.EnumSet;
import com.vmware.xenon.services.common.NodeGroupService.NodeGroupState;
import com.vmware.xenon.services.common.NodeGroupUtils;
public class NodeSelectorState extends ServiceDocument {
public enum Status {
UNAVAILABLE,
PAUSED,
AVAILABLE
}
public static final EnumSet UNAVAILABLE = EnumSet.of(Status.UNAVAILABLE);
public static final EnumSet PAUSED = EnumSet.of(Status.PAUSED, Status.AVAILABLE);
public static final EnumSet AVAILABLE = EnumSet.of(Status.AVAILABLE);
public static final EnumSet PAUSED_UNAVAILABLE = EnumSet.of(Status.PAUSED, Status.UNAVAILABLE);
/**
* Calculates the status of the Node Selector by inspecting the NodeGroup and local
* 'pause'/'resume' status.
*/
public static Status calculateStatus(ServiceHost host, NodeGroupState groupState) {
boolean isAvailable = NodeGroupUtils.isNodeGroupAvailable(host, groupState);
return (isAvailable ? Status.AVAILABLE : Status.UNAVAILABLE);
}
public static void updateStatus(ServiceHost host,
NodeGroupState groupState, NodeSelectorState ns) {
ns.status = calculateStatus(host, groupState);
}
public static boolean isAvailable(NodeSelectorState ns) {
return AVAILABLE.contains(ns.status);
}
public static boolean isAvailable(ServiceHost host, NodeGroupState groupState) {
return AVAILABLE.contains(calculateStatus(host, groupState));
}
public String nodeGroupLink;
public Long replicationFactor;
public int replicationQuorum;
public int membershipQuorum;
public long membershipUpdateTimeMicros;
public Status status;
}