/*************************************************************************
* 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.
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
* 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
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************************************************************************/
package com.eucalyptus.cluster.callback;
import java.util.NoSuchElementException;
import org.apache.log4j.Logger;
import com.eucalyptus.blockstorage.Storage;
import com.eucalyptus.blockstorage.msgs.DetachStorageVolumeType;
import com.eucalyptus.component.Partition;
import com.eucalyptus.component.ServiceConfiguration;
import com.eucalyptus.component.Topology;
import com.eucalyptus.entities.Entities;
import com.eucalyptus.records.Logs;
import com.eucalyptus.util.async.AsyncRequests;
import com.eucalyptus.util.async.MessageCallback;
import com.eucalyptus.compute.common.internal.vm.VmInstance;
import com.eucalyptus.vm.VmInstances;
import com.eucalyptus.compute.common.internal.vm.VmVolumeAttachment.AttachmentState;
import com.google.common.base.Function;
import com.eucalyptus.cluster.common.msgs.ClusterAttachVolumeResponseType;
import com.eucalyptus.cluster.common.msgs.ClusterAttachVolumeType;
public class VolumeAttachCallback extends MessageCallback<ClusterAttachVolumeType, ClusterAttachVolumeResponseType> {
private static Logger LOG = Logger.getLogger( VolumeAttachCallback.class );
public VolumeAttachCallback( ClusterAttachVolumeType request ) {
super( request );
}
@Override
public void initialize( ClusterAttachVolumeType msg ) {
final String instanceId = this.getRequest( ).getInstanceId( );
final String volumeId = this.getRequest( ).getVolumeId( );
final Function<String, VmInstance> funcName = new Function<String, VmInstance>( ) {
public VmInstance apply( final String input ) {
VmInstance vm = VmInstances.lookup( instanceId );
try {
if ( !AttachmentState.attached.equals( vm.lookupVolumeAttachment( volumeId ).getAttachmentState( ) ) ) {
VmInstances.updateVolumeAttachment( vm, volumeId, AttachmentState.attaching );
}
} catch ( Exception ex ) {
VmInstances.updateVolumeAttachment( vm, volumeId, AttachmentState.attaching );
}
return vm;
}
};
try {
Entities.asTransaction( VmInstance.class, funcName ).apply( this.getRequest( ).getInstanceId( ) );
} catch ( NoSuchElementException e1 ) {
LOG.error( "Failed to lookup volume attachment state in order to update: " + this.getRequest( ).getVolumeId( ) + " due to " + e1.getMessage( ), e1 );
}
}
@Override
public void fire( ClusterAttachVolumeResponseType reply ) {}
@Override
public void fireException( Throwable e ) {
LOG.debug( e );
Logs.extreme( ).error( e, e );
LOG.debug( "Trying to remove invalid volume attachment " + this.getRequest( ).getVolumeId( ) + " from instance " + this.getRequest( ).getInstanceId( ) );
try {
VmInstance vm = VmInstances.lookup( this.getRequest( ).getInstanceId( ) );
Partition partition = vm.lookupPartition( );
ServiceConfiguration sc = Topology.lookup( Storage.class, partition );
/** clean up SC session state **/
try {
LOG.debug( "Sending detach after async failure in attach volume: " + this.getRequest( ).getVolumeId( ) + " sc=" + sc );
AsyncRequests.sendSync( sc, new DetachStorageVolumeType( this.getRequest( ).getVolumeId( ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
Logs.extreme( ).error( ex, ex );
}
/** clean up internal attachment state **/
final Function<String, VmInstance> removeVolAttachment = new Function<String, VmInstance>( ) {
public VmInstance apply( final String input ) {
VmInstance vm = VmInstances.lookup( input );
VmInstances.removeVolumeAttachment( vm, VolumeAttachCallback.this.getRequest( ).getVolumeId( ) );
return vm;
}
};
Entities.asTransaction( VmInstance.class, removeVolAttachment ).apply( this.getRequest( ).getInstanceId( ) );
LOG.debug( "Removed failed attachment: " + this.getRequest( ).getVolumeId( ) + " -> " + vm.getInstanceId( ) );
} catch ( Exception e1 ) {
LOG.error( e1 );
Logs.extreme( ).error( e1, e1 );
}
}
}