com.huawei.openstack4j.model.image.v2.DiskFormat Maven / Gradle / Ivy

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/*******************************************************************************
 * 	Copyright 2016 ContainX and OpenStack4j                                          
 * 	                                                                                 
 * 	Licensed under the Apache License, Version 2.0 (the "License"); you may not      
 * 	use this file except in compliance with the License. You may obtain a copy of    
 * 	the License at                                                                   
 * 	                                                                                 
 * 	    http://www.apache.org/licenses/LICENSE-2.0                                   
 * 	                                                                                 
 * 	Unless required by applicable law or agreed to in writing, software              
 * 	distributed under the License is distributed on an "AS IS" BASIS, WITHOUT        
 * 	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the         
 * 	License for the specific language governing permissions and limitations under    
 * 	the License.                                                                     
 *******************************************************************************/
package com.huawei.openstack4j.model.image.v2;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonValue;

/**
 * The disk format of a virtual machine image is the format of the underlying disk image.
 * Virtual appliance vendors have different formats for laying out the information contained
 * in a virtual machine disk image.
 *
 * @author emjburns
 */
public enum DiskFormat {
    /**
     * This is an unstructured disk image format
     */
    RAW,
    /**
     * This is the VHD disk format, a common disk format used by virtual machine monitors from
     * VMWare, Xen, Microsoft, VirtualBox, and others
     */
    VHD,
    /**
     * Another common disk format supported by many common virtual machine monitors
     */
    VMDK,
    /**
     * This is the VHDX disk format, an enhanced version of the vhd format which supports larger disk sizes among other features.
     */
    VHDX,
    /**
     * A disk format supported by VirtualBox virtual machine monitor and the QEMU emulator
     */
    VDI,
    /**
     * An archive format for the data contents of an optical disc (e.g. CDROM).
     */
    ISO,
    /**
     * A disk format supported by the QEMU emulator that can expand dynamically and supports Copy on
     * Write
     */
    QCOW2,

    /**
     * This indicates what is stored in Glance is an Amazon kernel image
     */
    AKI,

    /**
     * This indicates what is stored in Glance is an Amazon ramdisk image
     */
    ARI,

    /**
     * This indicates what is stored in Glance is an Amazon machine image
     */
    AMI,

    /**
     * Type unknown
     */
    UNRECOGNIZED;

    @JsonValue
    public String value() {
        return name().toLowerCase();
    }

    @JsonCreator
    public static DiskFormat value(String df) {
        if (df == null || df.isEmpty()) return UNRECOGNIZED;
        try
        {
            return valueOf(df.toUpperCase());
        }
        catch (IllegalArgumentException e) {
            return UNRECOGNIZED;
        }
    }
}