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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.VmType;
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public class VmTypeAvailability implements Comparable {
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private int available;
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public VmTypeAvailability( final VmType type, final int max, final int available ) {
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this.available = available;
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public VmType getType() {
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public void decrement( int quantity ) {
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this.available -= quantity;
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this.available = ( this.available < 0 ) ? 0 : this.available;
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public void setMax( final int max ) {
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public int getAvailable() {
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public void setAvailable( final int available ) {
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this.available = available;
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public boolean equals( final Object o ) {
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if ( this == o ) return true;
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if ( !( o instanceof VmTypeAvailability ) ) return false;
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VmTypeAvailability that = ( VmTypeAvailability ) o;
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if ( !type.equals( that.type ) ) return false;
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public int hashCode() {
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return type.hashCode();
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public int compareTo( final Object o ) {
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VmTypeAvailability v = ( VmTypeAvailability ) o;
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if ( v.getAvailable() == this.getAvailable() ) return this.type.compareTo( v.getType() );
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return v.getAvailable() - this.getAvailable();
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public String toString() {
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return "VmTypeAvailability{" +
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", available=" + available +
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public static VmTypeAvailability ZERO = new ZeroTypeAvailability();
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static class ZeroTypeAvailability extends VmTypeAvailability {
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ZeroTypeAvailability() {
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super( new VmType( "ZERO", -1, -1, -1 ), 0, 0 );
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public int compareTo( final Object o ) {
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VmTypeAvailability v = ( VmTypeAvailability ) o;
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if ( v == ZERO ) return 0;
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if ( v.getAvailable() > 0 ) return 1;
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public void setAvailable( final int available ) {}
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public void decrement( final int quantity ) {}
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public boolean equals( final Object o ) {
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if ( this == o ) return true;
added
removed
clc/modules/cluster-manager/src/main/java/com/eucalyptus/cluster/VmTypeAvailability.java
