mirror of https://github.com/apache/cloudstack.git
137 lines
3.7 KiB
Java
Executable File
137 lines
3.7 KiB
Java
Executable File
/**
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* Copyright (C) 2010 Cloud.com, Inc. All rights reserved.
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*
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* This software is licensed under the GNU General Public License v3 or later.
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*
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* It is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package com.cloud.storage;
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import java.util.Date;
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import java.util.List;
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import java.util.Set;
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import com.cloud.acl.ControlledEntity;
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import com.cloud.template.BasedOn;
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import com.cloud.utils.fsm.FiniteState;
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import com.cloud.utils.fsm.StateMachine;
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public interface Volume extends ControlledEntity, BasedOn {
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enum Type {
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UNKNOWN, ROOT, SWAP, DATADISK, ISO
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};
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enum State implements FiniteState<State, Event> {
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Allocated("The volume is allocated but has not been created yet."),
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Creating("The volume is being created. getPoolId() should reflect the pool where it is being created."),
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Ready("The volume is ready to be used."),
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Destroy("The volume is destroyed, and can't be recovered.");
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String _description;
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private State(String description) {
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_description = description;
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}
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@Override
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public StateMachine<State, Event> getStateMachine() {
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return s_fsm;
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}
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@Override
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public State getNextState(Event event) {
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return s_fsm.getNextState(this, event);
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}
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@Override
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public List<State> getFromStates(Event event) {
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return s_fsm.getFromStates(this, event);
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}
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@Override
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public Set<Event> getPossibleEvents() {
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return s_fsm.getPossibleEvents(this);
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}
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@Override
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public String getDescription() {
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return _description;
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}
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private final static StateMachine<State, Event> s_fsm = new StateMachine<State, Event>();
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static {
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s_fsm.addTransition(Allocated, Event.Create, Creating);
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s_fsm.addTransition(Allocated, Event.Destroy, Destroy);
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s_fsm.addTransition(Creating, Event.OperationRetry, Creating);
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s_fsm.addTransition(Creating, Event.OperationFailed, Allocated);
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s_fsm.addTransition(Creating, Event.OperationSucceeded, Ready);
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s_fsm.addTransition(Creating, Event.Destroy, Destroy);
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s_fsm.addTransition(Creating, Event.Create, Creating);
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s_fsm.addTransition(Ready, Event.Destroy, Destroy);
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}
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}
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enum Event {
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Create, OperationFailed, OperationSucceeded, OperationRetry, Destroy;
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}
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long getId();
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/**
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* @return the volume name
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*/
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String getName();
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/**
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* @return total size of the partition
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*/
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long getSize();
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/**
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* @return the vm instance id
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*/
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Long getInstanceId();
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/**
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* @return the folder of the volume
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*/
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String getFolder();
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/**
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* @return the path created.
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*/
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String getPath();
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Long getPodId();
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long getDataCenterId();
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Type getVolumeType();
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Long getPoolId();
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State getState();
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Date getAttached();
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Long getDeviceId();
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Date getCreated();
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long getDiskOfferingId();
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String getChainInfo();
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boolean isRecreatable();
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}
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