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// 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.

package com.cloud.ha;

import com.cloud.host.HostVO;

import com.cloud.host.Status;

import com.cloud.utils.component.Adapter;

import com.cloud.vm.VMInstanceVO;

public interface Investigator extends Adapter {

/**

* Returns if the vm is still alive.

*

* @param vm to work on.

*/

public Boolean isVmAlive(VMInstanceVO vm, HostVO host);

public Status isAgentAlive(HostVO agent);

}