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/*******************************************************************************
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*Copyright (c) 2009 Eucalyptus Systems, Inc.
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* This program 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, only version 3 of the License.
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* This file is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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* Please contact Eucalyptus Systems, Inc., 130 Castilian
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* Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
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* if you need additional information or have any questions.
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* This file may incorporate work covered under the following copyright and
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* Software License Agreement (BSD License)
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* Copyright (c) 2008, Regents of the University of California
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* All rights reserved.
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* Redistribution and use of this software in source and binary forms, with
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* or without modification, are permitted provided that the following
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. USERS OF
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* THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE
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* LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS
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* SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
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* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
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* BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN
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* THE REGENTS’ DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT
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* OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO IDENTIFIED, OR
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* WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT NEEDED TO COMPLY WITH
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* ANY SUCH LICENSES OR RIGHTS.
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*******************************************************************************/
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* Author: chris grzegorczyk <grze@eucalyptus.com>
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package com.eucalyptus.cluster;
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import com.eucalyptus.entities.EntityWrapper;
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import com.eucalyptus.entities.VmType;
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import com.eucalyptus.util.EucalyptusCloudException;
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import java.util.List;
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import java.util.NavigableSet;
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import java.util.TreeSet;
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import java.util.concurrent.ConcurrentNavigableMap;
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import java.util.concurrent.ConcurrentSkipListMap;
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public class VmTypes {
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private static VmTypes singleton;
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private ConcurrentNavigableMap<String, VmType> vmTypeMap;
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this.vmTypeMap = new ConcurrentSkipListMap<String, VmType>( );
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private static VmTypes getSingleton( ) {
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synchronized(VmTypes.class) {
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singleton = singleton == null ? new VmTypes( ) : singleton;
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public static synchronized void update( Set<VmType> newVmTypes ) throws EucalyptusCloudException {
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NavigableSet<VmType> newList = VmTypes.list( );
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if ( newVmTypes.size( ) != newList.size( ) ) throw new EucalyptusCloudException( "Proposed VmTypes fail to satisfy well-ordering requirement." );
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for ( VmType newVm : newVmTypes ) {
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if ( !getSingleton( ).vmTypeMap.containsValue( newVm ) ) {
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EntityWrapper<VmType> db = new EntityWrapper<VmType>( );
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VmType oldVm = db.getUnique( new VmType( newVm.getName( ) ) );
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oldVm.setCpu( newVm.getCpu( ) );
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oldVm.setDisk( newVm.getDisk( ) );
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oldVm.setMemory( newVm.getMemory( ) );
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} catch ( EucalyptusCloudException e ) {
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} catch ( Throwable t ) {
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throw new EucalyptusCloudException( t );
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private synchronized void update( ) {
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EntityWrapper<VmType> db = new EntityWrapper<VmType>( );
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List<VmType> vmTypeList = db.query( new VmType( ) );
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for ( VmType v : vmTypeList ) {
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this.vmTypeMap.putIfAbsent( v.getName( ), v );
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if ( !this.vmTypeMap.get( v.getName( ) ).equals( v ) ) this.vmTypeMap.replace( v.getName( ), v );
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if ( vmTypeList.isEmpty( ) ) {
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db.add( new VmType( "m1.small", 1, 10, 128 ) );
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db.add( new VmType( "c1.medium", 2, 10, 128 ) );
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db.add( new VmType( "m1.large", 2, 10, 512 ) );
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db.add( new VmType( "m1.xlarge", 2, 10, 1024 ) );
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db.add( new VmType( "c1.xlarge", 4, 10, 2048 ) );
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} catch ( Throwable e ) {
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public static synchronized VmType getVmType( String name ) {
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getSingleton( ).update( );
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return getSingleton( ).vmTypeMap.get( name );
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public static synchronized NavigableSet<VmType> list( ) {
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getSingleton( ).update( );
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return new TreeSet<VmType>( getSingleton( ).vmTypeMap.values( ) );