def validates_guest_add(obj):
    checker = Checker()
    check = True

    _ = obj._
    checker.errors = []

    if not is_param(obj.input, 'm_name'):
        check = False
        checker.add_error(_('Parameter m_name does not exist.'))
    else:
        check = checker.check_string(
                    _('Machine Name'),
                    obj.input.m_name,
                    CHECK_EMPTY | CHECK_LENGTH | CHECK_ONLYSPACE,
                    None,
                    min = MACHINE_NAME_MIN_LENGTH,
                    max = MACHINE_NAME_MAX_LENGTH,
            ) and check

    if is_param(obj.input, 'note_title'):
        check = checker.check_string(
                    _('Title'),
                    obj.input.note_title,
                    CHECK_LENGTH | CHECK_ONLYSPACE,
                    None,
                    min = NOTE_TITLE_MIN_LENGTH,
                    max = NOTE_TITLE_MAX_LENGTH,
                ) and check

    if is_param(obj.input, 'note_value'):
        check = checker.check_string(
                    _('Note'),
                    obj.input.note_value,
                    CHECK_ONLYSPACE,
                    None,
                    None,
                    None,
                ) and check

    if is_param(obj.input, 'tags'):
        for tag in comma_split(obj.input.tags):
            check = checker.check_string(
                        _('Tag'),
                        tag,
                        CHECK_LENGTH | CHECK_ONLYSPACE,
                        None,
                        min = TAG_MIN_LENGTH,
                        max = TAG_MAX_LENGTH,
                    ) and check


    if not is_param(obj.input, 'm_hypervisor'):
        check = False
        checker.add_error(_('Parameter m_hypervisor does not exist.'))
    else:
        check = checker.check_hypervisor(
                _('Hypervisor'),
                obj.input.m_hypervisor,
                CHECK_EMPTY | CHECK_VALID | CHECK_MIN | CHECK_MAX,
                HYPERVISOR_MIN_SIZE,
                HYPERVISOR_MAX_SIZE,
            ) and check

    if not is_param(obj.input, 'domain_name'):
        check = False
        checker.add_error(_('Parameter domain_name does not exist.'))
    else:
        check = checker.check_string(
                _('Domain Name'),
                obj.input.domain_name,
                CHECK_EMPTY | CHECK_VALID | CHECK_LENGTH | CHECK_ONLYSPACE,
                '[^-a-zA-Z0-9_\.]+',
                DOMAIN_NAME_MIN_LENGTH,
                DOMAIN_NAME_MAX_LENGTH,
            ) and check

        if obj.input.domain_name in get_dom_list():
            dom_type = get_dom_type(obj.input.domain_name)
            checker.add_error(_("The same domain name already exists for hypervisor '%s'.") % dom_type.upper())
            check = False

    if is_param(obj.input, 'vm_mem_size'):
        check = checker.check_number(
                _('Memory Size (MB)'),
                obj.input.vm_mem_size,
                CHECK_VALID | CHECK_MIN | CHECK_EMPTY,
                MEMORY_MIN_SIZE,
                None,
            ) and check

    if is_param(obj.input, 'pool_type'):
        if obj.input.pool_type != "block":
            if is_param(obj.input, 'vm_disk_size'):
                check = checker.check_number(
                        _('Disk Size (MB)'),
                        obj.input.vm_disk_size,
                        CHECK_VALID | CHECK_MIN | CHECK_EMPTY,
                        DISK_MIN_SIZE,
                        None,
                ) and check

    if not is_param(obj.input, 'boot_image'):
        check = False
        checker.add_error(_('Parameter boot_image does not exist.'))
    else:
        if obj.input.boot_image == "kernel":
            if not is_param(obj.input, 'vm_kernel'):
                check = False
                checker.add_error(_('Parameter vm_kernel does not exist.'))
            else:
                check = checker.check_startfile(
                        _('Kernel Image'),
                        obj.input.vm_kernel,
                        CHECK_EMPTY | CHECK_VALID | CHECK_EXIST,
                    ) and check

            if not is_param(obj.input, 'vm_initrd'):
                check = False
                checker.add_error(_('Parameter vm_initrd does not exist.'))
            else:
                check = checker.check_startfile(
                        _('Initrd Image'),
                        obj.input.vm_initrd,
                        CHECK_EMPTY | CHECK_VALID | CHECK_EXIST,
                    ) and check

        if obj.input.boot_image == "iso":
            if not is_param(obj.input, 'vm_iso'):
                check = False
                checker.add_error(_('Parameter vm_iso does not exist.'))
            else:
                check = checker.check_startfile(
                        _('ISO Image'),
                        obj.input.vm_iso,
                        CHECK_EMPTY | CHECK_VALID | CHECK_EXIST,
                    ) and check
                if check:
                    check = is_iso9660_filesystem_format(obj.input.vm_iso)
                    checker.add_error(_('"%s" is not valid ISO 9660 CD-ROM filesystem data.') % obj.input.vm_iso)

    if not is_param(obj.input, 'keymap'):
        check = False
        checker.add_error(_('"%s" is required.') % _('Graphics Keymap'))
    else:
        hypervisor = "KVM"
        if int(obj.input.m_hypervisor) == MACHINE_HYPERVISOR['XEN']:
            hypervisor = "XEN"
        elif int(obj.input.m_hypervisor) == MACHINE_HYPERVISOR['KVM']:
            hypervisor = "KVM"
        check = checker.check_keymap(
                _('Graphics Keymap'),
                obj.input.keymap,
                CHECK_EMPTY | CHECK_EXIST,
                hypervisor
                ) and check

    if not is_param(obj.input, 'vm_graphics_port'):
        check = False
        checker.add_error(_('Parameter vm_graphics_port does not exist.'))
    else:
        check = checker.check_number(
                _('Graphics Port Number'),
                obj.input.vm_graphics_port,
                CHECK_EMPTY | CHECK_VALID | CHECK_MIN | CHECK_MAX,
                GRAPHICS_PORT_MIN_NUMBER,
                GRAPHICS_PORT_MAX_NUMBER,
            ) and check

    if not is_param(obj.input, 'vm_mac'):
        check = False
        checker.add_error(_('Parameter vm_mac does not exist.'))
    else:
        check = checker.check_macaddr(
                _('MAC Address'),
                obj.input.vm_mac,
                CHECK_EMPTY | CHECK_VALID,
            ) and check

    obj.view.alert = checker.errors
    return check


# public method
dataset/ETHPy150Open karesansui/karesansui/karesansui/gadget/guest.py/validates_guest_add/original