/**
* Abiquo community edition
* cloud management application for hybrid clouds
* Copyright (C) 2008-2010 - Abiquo Holdings S.L.
*
* This application is free software; you can redistribute it and/or
* modify it under the terms of the GNU LESSER GENERAL PUBLIC
* LICENSE as published by the Free Software Foundation under
* version 3 of the License
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* LESSER GENERAL PUBLIC LICENSE v.3 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
package com.abiquo.server.core.scheduler;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import org.hibernate.annotations.ForeignKey;
import org.hibernate.validator.constraints.Range;
import com.abiquo.server.core.common.DefaultEntityBase;
import com.abiquo.server.core.infrastructure.Datacenter;
import com.abiquo.server.core.infrastructure.Machine;
import com.abiquo.server.core.infrastructure.Rack;
import com.softwarementors.validation.constraints.Required;
@Entity
@Table(name = MachineLoadRule.TABLE_NAME)
@org.hibernate.annotations.Table(appliesTo = MachineLoadRule.TABLE_NAME)
public class MachineLoadRule extends DefaultEntityBase implements
Rule<VirtualMachineRequirements, Machine, Integer>, PersistentRule
{
public static final MachineLoadRule DEFAULT_RULE = new MachineLoadRuleWithNoLocation();
public static final String TABLE_NAME = "workload_machine_load_rule";
/**
* TODO protect machine, rack or datacenter SETTER with unset all the other relations
*/
// TODO deprectate this // used on generators
public MachineLoadRule(final int cpuLoadPercentage, final int ramLoadPercentage)
{
super();
setCpuLoadPercentage(cpuLoadPercentage);
setRamLoadPercentage(ramLoadPercentage);
}
public MachineLoadRule(final Machine machine, final int cpuLoadPercentage,
final int ramLoadPercentage)
{
super();
setMachine(machine);
setCpuLoadPercentage(cpuLoadPercentage);
setRamLoadPercentage(ramLoadPercentage);
}
public MachineLoadRule(final Rack rack, final int cpuLoadPercentage, final int ramLoadPercentage)
{
super();
setRack(rack);
setCpuLoadPercentage(cpuLoadPercentage);
setRamLoadPercentage(ramLoadPercentage);
}
public MachineLoadRule(final Datacenter datacenter, final int cpuLoadPercentage,
final int ramLoadPercentage)
{
super();
setDatacenter(datacenter);
setCpuLoadPercentage(cpuLoadPercentage);
setRamLoadPercentage(ramLoadPercentage);
}
protected MachineLoadRule()
{
}
private final static String ID_COLUMN = "id";
@Id
@GeneratedValue
@Column(name = ID_COLUMN, nullable = false)
private Integer id;
@Override
public Integer getId()
{
return this.id;
}
public final static String MACHINE_PROPERTY = "machine";
private final static boolean MACHINE_REQUIRED = false;
private final static String MACHINE_ID_COLUMN = "idMachine";
@JoinColumn(name = MACHINE_ID_COLUMN)
@ManyToOne(fetch = FetchType.LAZY)
@ForeignKey(name = "FK_" + TABLE_NAME + "_machine")
private Machine machine;
@Required(value = MACHINE_REQUIRED)
public Machine getMachine()
{
return this.machine;
}
public void setMachine(final Machine machine)
{
this.machine = machine;
}
public final static String DATACENTER_PROPERTY = "datacenter";
private final static boolean DATACENTER_REQUIRED = false;
private final static String DATACENTER_ID_COLUMN = "idDatacenter";
@JoinColumn(name = DATACENTER_ID_COLUMN)
@ManyToOne(fetch = FetchType.LAZY)
@ForeignKey(name = "FK_" + TABLE_NAME + "_datacenter")
private Datacenter datacenter;
@Required(value = DATACENTER_REQUIRED)
public Datacenter getDatacenter()
{
return this.datacenter;
}
public void setDatacenter(final Datacenter datacenter)
{
this.datacenter = datacenter;
}
public final static String RACK_PROPERTY = "rack";
private final static boolean RACK_REQUIRED = false;
private final static String RACK_ID_COLUMN = "idRack";
@JoinColumn(name = RACK_ID_COLUMN)
@ManyToOne(fetch = FetchType.LAZY)
@ForeignKey(name = "FK_" + TABLE_NAME + "_rack")
private Rack rack;
@Required(value = RACK_REQUIRED)
public Rack getRack()
{
return this.rack;
}
public void setRack(final Rack rack)
{
this.rack = rack;
}
public final static String CPU_LOAD_PERCENTAGE_PROPERTY = "cpuLoadPercentage";
private final static String CPU_LOAD_PERCENTAGE_COLUMN = "cpuLoadPercentage";
private final static int CPU_LOAD_PERCENTAGE_MIN = 0;
private final static int CPU_LOAD_PERCENTAGE_MAX = Integer.MAX_VALUE;
@Column(name = CPU_LOAD_PERCENTAGE_COLUMN, nullable = false)
@Range(min = CPU_LOAD_PERCENTAGE_MIN, max = CPU_LOAD_PERCENTAGE_MAX)
private int cpuLoadPercentage;
public int getCpuLoadPercentage()
{
return this.cpuLoadPercentage;
}
public void setCpuLoadPercentage(final int cpuLoadPercentage)
{
this.cpuLoadPercentage = cpuLoadPercentage;
}
public final static String RAM_LOAD_PERCENTAGE_PROPERTY = "ramLoadPercentage";
private final static String RAM_LOAD_PERCENTAGE_COLUMN = "ramLoadPercentage";
private final static int RAM_LOAD_PERCENTAGE_MIN = 0;
private final static int RAM_LOAD_PERCENTAGE_MAX = Integer.MAX_VALUE;
@Column(name = RAM_LOAD_PERCENTAGE_COLUMN, nullable = false)
@Range(min = RAM_LOAD_PERCENTAGE_MIN, max = RAM_LOAD_PERCENTAGE_MAX)
private int ramLoadPercentage;
public int getRamLoadPercentage()
{
return this.ramLoadPercentage;
}
public void setRamLoadPercentage(final int ramLoadPercentage)
{
this.ramLoadPercentage = ramLoadPercentage;
}
//
// We define a private static class as a trick to bypasses the validation for the
// special case of the default rule, which MUST not belong to any datacenter/rack/machine.
// The only instance that will ever exist is DEFAULT_RULE
private static class MachineLoadRuleWithNoLocation extends MachineLoadRule
{
private static final long serialVersionUID = 1479156414262769638L;
private MachineLoadRuleWithNoLocation()
{
setCpuLoadPercentage(100);
setRamLoadPercentage(100);
}
}
@Override
public boolean pass(final VirtualMachineRequirements requirements, final Machine machine,
final Integer contextData)
{
final boolean passCPU =
pass(Long.valueOf(machine.getVirtualCpusUsed()), requirements.getCpu(),
Long.valueOf(machine.getVirtualCpuCores()), cpuLoadPercentage);
// if (!passCPU)
// {
// return false;
// }
final boolean passRAM =
pass(Long.valueOf(machine.getVirtualRamUsedInMb()), requirements.getRam(),
Long.valueOf(machine.getVirtualRamInMb()), ramLoadPercentage);
return passCPU && passRAM;
}
/**
* TODO use Long for used on physical machine DDBB schema
*/
public static boolean pass(final Long used, final Long required, final Long allowed,
final Integer oversubscription)
{
return used + required <= oversubscription * allowed / 100;
}
}