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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package com.cloud.deploy;

import java.util.List;

import com.cloud.exception.InsufficientServerCapacityException;
import com.cloud.vm.VirtualMachineProfile;
import org.apache.cloudstack.framework.config.ConfigKey;

/**
 */
public interface DeploymentClusterPlanner extends DeploymentPlanner {

    static final String ClusterCPUCapacityDisableThresholdCK = "cluster.cpu.allocated.capacity.disablethreshold";
    static final String ClusterMemoryCapacityDisableThresholdCK = "cluster.memory.allocated.capacity.disablethreshold";

    static final ConfigKey<Float> ClusterCPUCapacityDisableThreshold = new ConfigKey<Float>(Float.class, ClusterCPUCapacityDisableThresholdCK, "Alert", "0.85",
            "Percentage (as a value between 0 and 1) of cpu utilization above which allocators will disable using the cluster for low cpu available. Keep the corresponding notification threshold lower than this to be notified beforehand.", true, ConfigKey.Scope.Cluster, null);
    static final ConfigKey<Float> ClusterMemoryCapacityDisableThreshold = new ConfigKey<Float>(Float.class, ClusterMemoryCapacityDisableThresholdCK, "Alert", "0.85",
            "Percentage (as a value between 0 and 1) of memory utilization above which allocators will disable using the cluster for low memory available. Keep the corresponding notification threshold lower than this to be notified beforehand.", true, ConfigKey.Scope.Cluster, null);

    /**
     * This is called to determine list of possible clusters where a virtual
     * machine can be deployed.
     *
     * @param vm
     *            virtual machine.
     * @param plan
     *            deployment plan that tells you where it's being deployed to.
     * @param avoid
     *            avoid these data centers, pods, clusters, or hosts.
     * @return DeployDestination for that virtual machine.
     */
    List<Long> orderClusters(VirtualMachineProfile vm, DeploymentPlan plan, ExcludeList avoid)
            throws InsufficientServerCapacityException;

    PlannerResourceUsage getResourceUsage(VirtualMachineProfile vmProfile,
            DeploymentPlan plan, ExcludeList avoid) throws InsufficientServerCapacityException;

}