/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
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*
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*
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* distribution.
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
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* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
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* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
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* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.compute.common.internal.vm;
import javax.annotation.Nullable;
import org.apache.log4j.Logger;
import com.google.common.base.Predicate;
import com.google.common.base.Strings;
/**
* @todo doc
* @author chris grzegorczyk <grze@eucalyptus.com>
*/
public enum MigrationState {
none {
@Override
public boolean isMigrating( ) {
return false;
}
},
pending,
preparing,
ready,
migrating,
cleaning;
private static Logger LOG = Logger.getLogger( MigrationState.class );
public static boolean isMigrating( VmInstance vm ) {
return VmInstanceFilter.INSTANCE.apply( vm );
}
public enum VmInstanceFilter implements Predicate<VmInstance> {
INSTANCE;
/**
* @see com.google.common.base.Predicate#apply(java.lang.Object)
*/
@Override
public boolean apply( @Nullable VmInstance input ) {
return VmInstance.VmState.RUNNING.apply( input ) && input.getRuntimeState( ).getMigrationTask( ).getState( ).isMigrating( );
}
}
public boolean isMigrating( ) {
return true;
}
public static MigrationState defaultValueOf( String state ) {
if ( !Strings.isNullOrEmpty( state ) ) {
try {
return MigrationState.valueOf( state );
} catch ( IllegalArgumentException ex ) {
LOG.debug( ex );
return none;
}
} else {
return none;
}
}
}