// 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
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// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.storage.secondary;

import java.util.List;

import com.cloud.agent.api.Command;
import com.cloud.agent.api.StartupCommand;
import com.cloud.host.HostVO;
import com.cloud.utils.Pair;
import com.cloud.utils.component.Manager;
import com.cloud.vm.SecondaryStorageVmVO;

public interface SecondaryStorageVmManager extends Manager {

	public static final int DEFAULT_SS_VM_RAMSIZE = 256;			// 256M
	public static final int DEFAULT_SS_VM_CPUMHZ = 500;				// 500 MHz
	public static final int DEFAULT_SS_VM_MTUSIZE = 1500;
    public static final int DEFAULT_SS_VM_CAPACITY = 50;			// max command execution session per SSVM
    public static final int DEFAULT_STANDBY_CAPACITY = 10;			// standy capacity to reserve per zone

	public static final String ALERT_SUBJECT = "secondarystoragevm-alert";

	public SecondaryStorageVmVO startSecStorageVm(long ssVmVmId);
	public boolean stopSecStorageVm(long ssVmVmId);
	public boolean rebootSecStorageVm(long ssVmVmId);
	public boolean destroySecStorageVm(long ssVmVmId);
	public void onAgentConnect(Long dcId, StartupCommand cmd);
	public boolean  generateFirewallConfiguration(Long agentId);
	public boolean generateVMSetupCommand(Long hostId);

	public Pair<HostVO, SecondaryStorageVmVO> assignSecStorageVm(long zoneId, Command cmd);
    boolean generateSetupCommand(Long hostId);
    public List<HostVO> listUpAndConnectingSecondaryStorageVmHost(Long dcId);
    public HostVO pickSsvmHost(HostVO ssHost);
}
