/*******************************************************************************
*Copyright (c) 2009 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, only version 3 of the License.
*
*
* This file 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., 130 Castilian
* Dr., Goleta, CA 93101 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, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 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.
*******************************************************************************/
/*
* Author: chris grzegorczyk <grze@eucalyptus.com>
*/
package com.eucalyptus.sla;
import java.util.List;
import org.apache.log4j.Logger;
import org.bouncycastle.util.encoders.Base64;
import com.eucalyptus.cluster.Clusters;
import com.eucalyptus.cluster.VmInstance;
import com.eucalyptus.entities.Counters;
import com.eucalyptus.records.EventType;
import com.eucalyptus.scripting.ScriptExecutionFailedException;
import com.eucalyptus.util.EucalyptusCloudException;
import com.eucalyptus.util.LogUtil;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import edu.ucsb.eucalyptus.cloud.VmAllocationInfo;
import com.eucalyptus.records.EventRecord;
import edu.ucsb.eucalyptus.msgs.RunInstancesType;
public class VmAdmissionControl {
private static Logger LOG = Logger.getLogger( VmAdmissionControl.class );
public VmAllocationInfo verify( RunInstancesType request ) throws EucalyptusCloudException {
//:: encapsulate the request into a VmAllocationInfo object and forward it on :://
VmAllocationInfo vmAllocInfo = new VmAllocationInfo( request );
if( vmAllocInfo.getRequest( ).getInstanceType( ) == null || "".equals( vmAllocInfo.getRequest( ).getInstanceType( ) )) {
vmAllocInfo.getRequest( ).setInstanceType( VmInstance.DEFAULT_TYPE );
}
vmAllocInfo.setReservationIndex( Counters.getIdBlock( request.getMaxCount( ) ) );
byte[] userData = new byte[0];
if ( vmAllocInfo.getRequest( ).getUserData( ) != null ) {
try {
userData = Base64.decode( vmAllocInfo.getRequest( ).getUserData( ) );
} catch ( Exception e ) {
}
}
vmAllocInfo.setUserData( userData );
vmAllocInfo.getRequest( ).setUserData( new String( Base64.encode( userData ) ) );
return vmAllocInfo;
}
public VmAllocationInfo evaluate( VmAllocationInfo vmAllocInfo ) throws EucalyptusCloudException {
List<ResourceAllocator> pending = Lists.newArrayList( );
pending.add( new NodeResourceAllocator() );
if( Clusters.getInstance( ).hasNetworking( ) ) {
pending.add( new AddressAllocator() );
pending.add( new PrivateNetworkAllocator( ) );
pending.add( new SubnetIndexAllocator( ) );
}
List<ResourceAllocator> finished = Lists.newArrayList( );
for( ResourceAllocator allocator : pending ) {
try {
allocator.allocate( vmAllocInfo );
finished.add( allocator );
} catch (ScriptExecutionFailedException e) {
if( e.getCause() != null ) {
throw new EucalyptusCloudException( e.getCause( ).getMessage( ), e.getCause( ) );
} else {
throw new EucalyptusCloudException( e.getMessage( ), e );
}
} catch ( Throwable e ) {
LOG.debug( e, e );
try {
allocator.fail( vmAllocInfo, e );
} catch ( Throwable e1 ) {
LOG.debug( e1, e1 );
}
for( ResourceAllocator rollback : Iterables.reverse( finished ) ) {
try {
rollback.fail( vmAllocInfo, e );
} catch ( Throwable e1 ) {
LOG.debug( e1, e1 );
}
}
throw new EucalyptusCloudException( e.getMessage( ), e );
}
}
EventRecord.here( this.getClass(), EventType.VM_RESERVED, LogUtil.dumpObject( vmAllocInfo ) ).trace( );
return vmAllocInfo;
}
}