/*************************************************************************
* 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,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.cluster.callback;
import org.apache.log4j.Logger;
import com.eucalyptus.entities.Entities;
import com.eucalyptus.util.Exceptions;
import com.eucalyptus.util.async.ConnectionException;
import com.eucalyptus.util.async.FailedRequestException;
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;
import com.eucalyptus.compute.common.internal.vm.VmVolumeAttachment.AttachmentState;
import com.google.common.base.Function;
import com.eucalyptus.cluster.common.msgs.ClusterDetachVolumeResponseType;
import com.eucalyptus.cluster.common.msgs.ClusterDetachVolumeType;
public class VolumeDetachCallback extends MessageCallback<ClusterDetachVolumeType,ClusterDetachVolumeResponseType> {
private static Logger LOG = Logger.getLogger( VolumeDetachCallback.class );
public VolumeDetachCallback( ClusterDetachVolumeType request ) {
super( request );
final Function<String, VmInstance> removeVolAttachment = new Function<String, VmInstance>( ) {
public VmInstance apply( final String input ) {
String volumeId = VolumeDetachCallback.this.getRequest( ).getVolumeId( );
VmInstance vm = VmInstances.lookup( input );
VmVolumeAttachment volumeAttachment = vm.lookupVolumeAttachment( volumeId );
if ( !VmVolumeAttachment.AttachmentState.attached.equals( volumeAttachment.getAttachmentState( ) ) ) {
if ( VmVolumeAttachment.AttachmentState.detaching.equals( volumeAttachment.getAttachmentState( ) ) ) {
throw Exceptions.toUndeclared( "Failed to detach volume which is already detaching: " + volumeId );
} else if ( VmVolumeAttachment.AttachmentState.attaching.equals( volumeAttachment.getAttachmentState( ) ) ) {
throw Exceptions.toUndeclared( "Failed to detach volume which is currently attaching: " + volumeId );
} else {
throw Exceptions.toUndeclared( "Failed to detach volume which is not currently attached: " + volumeId );
}
}
VmInstances.updateVolumeAttachment( vm, volumeId, AttachmentState.detaching );
return vm;
}
};
Entities.asTransaction( VmInstance.class, removeVolAttachment ).apply( this.getRequest( ).getInstanceId( ) );
}
@Override
public void fire( ClusterDetachVolumeResponseType reply ) {}
/**
* TODO: DOCUMENT
* @see com.eucalyptus.util.async.MessageCallback#fireException(java.lang.Throwable)
* @param e
*/
@Override
public void fireException( Throwable e ) {
if( e instanceof FailedRequestException ) {
LOG.debug( "Request failed: " + this.getRequest( ).toSimpleString( ) + " because of: " + e.getMessage( ) );
} else if( e instanceof ConnectionException ) {
LOG.error( e, e );
}
LOG.trace( this.getRequest( ).toString( "eucalyptus_ucsb_edu" ) );
final Function<String, VmInstance> failedVolDetach = new Function<String, VmInstance>( ) {
public VmInstance apply( final String input ) {
VmInstance vm = VmInstances.lookup( input );
VmInstances.updateVolumeAttachment( vm, VolumeDetachCallback.this.getRequest( ).getVolumeId( ), AttachmentState.attached );
return vm;
}
};
Entities.asTransaction( VmInstance.class, failedVolDetach ).apply( this.getRequest( ).getInstanceId( ) );
}
}