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# Copyright (C) 2008, 2013, 2014 Red Hat, Inc.
# Copyright (C) 2008 Cole Robinson <crobinso@redhat.com>
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
from gi.repository import Gtk
from virtinst import log
from virtinst import StorageVolume, StoragePool
from .lib import uiutil
from .asyncjob import vmmAsyncJob
from .baseclass import vmmGObjectUI
from .xmleditor import vmmXMLEditor
class vmmCreateVolume(vmmGObjectUI):
__gsignals__ = {
"vol-created": (vmmGObjectUI.RUN_FIRST, None, [object, object]),
}
def __init__(self, conn, parent_pool):
vmmGObjectUI.__init__(self, "createvol.ui", "vmm-create-vol")
self.conn = conn
self._parent_pool = parent_pool
self._name_hint = None
self._storage_browser = None
self._xmleditor = vmmXMLEditor(
self.builder, self.topwin, self.widget("details-box-align"), self.widget("details-box")
)
self._xmleditor.connect("xml-requested", self._xmleditor_xml_requested_cb)
self.builder.connect_signals(
{
"on_vmm_create_vol_delete_event": self.close,
"on_vol_cancel_clicked": self.close,
"on_vol_create_clicked": self._create_clicked_cb,
"on_vol_name_changed": self._vol_name_changed_cb,
"on_vol_format_changed": self._vol_format_changed_cb,
"on_backing_browse_clicked": self._browse_backing_clicked_cb,
}
)
self.bind_escape_key_close()
self._init_state()
#######################
# Standard UI methods #
#######################
def show(self, parent):
try:
parent_xml = self._parent_pool.xmlobj.get_xml()
except Exception: # pragma: no cover
log.debug("Error getting parent_pool xml", exc_info=True)
parent_xml = None
log.debug("Showing new volume wizard for parent_pool=\n%s", parent_xml)
self._reset_state()
self.topwin.set_transient_for(parent)
self.topwin.present()
def close(self, ignore1=None, ignore2=None):
log.debug("Closing new volume wizard")
self.topwin.hide()
if self._storage_browser:
self._storage_browser.close()
self.set_modal(False)
return 1
def _cleanup(self):
self.conn = None
self._parent_pool = None
self._xmleditor.cleanup()
self._xmleditor = None
if self._storage_browser:
self._storage_browser.cleanup()
self._storage_browser = None
##############
# Public API #
##############
def set_name_hint(self, hint):
self._name_hint = hint
def set_modal(self, modal):
self.topwin.set_modal(bool(modal))
def set_parent_pool(self, pool):
self._parent_pool = pool
###########
# UI init #
###########
def _init_state(self):
format_list = self.widget("vol-format")
format_model = Gtk.ListStore(str, str)
format_list.set_model(format_model)
uiutil.init_combo_text_column(format_list, 1)
for fmt in ["raw", "qcow2"]:
format_model.append([fmt, fmt])
def _reset_state(self):
self._xmleditor.reset_state()
vol = self._make_stub_vol()
hasformat = vol.supports_format()
uiutil.set_grid_row_visible(self.widget("vol-format"), hasformat)
uiutil.set_list_selection(self.widget("vol-format"), self.conn.get_default_storage_format())
self.widget("vol-name").set_text(self._default_vol_name() or "")
self.widget("vol-name").grab_focus()
self.widget("vol-name").emit("changed")
self.widget("backing-store").set_text("")
self.widget("vol-nonsparse").set_active(not self._should_default_sparse())
self._show_sparse()
self._show_backing()
self.widget("backing-expander").set_expanded(False)
pool_avail = int(self._parent_pool.get_available() / 1024 / 1024 / 1024)
default_cap = 20
self.widget("vol-capacity").set_range(0.1, 1000000)
self.widget("vol-capacity").set_value(min(default_cap, pool_avail))
self.widget("vol-parent-info").set_markup(
_("<b>%(volume)s's</b> available space: %(size)s")
% {
"volume": self._parent_pool.get_name(),
"size": self._parent_pool.get_pretty_available(),
}
)
###################
# Helper routines #
###################
def _get_config_format(self):
if not self.widget("vol-format").get_visible():
return None
return uiutil.get_list_selection(self.widget("vol-format"))
def _default_vol_name(self):
hint = self._name_hint or "vol"
suffix = self._default_suffix()
ret = ""
try:
ret = StorageVolume.find_free_name(
self.conn.get_backend(), self._parent_pool.get_backend(), hint, suffix=suffix
)
if ret and suffix:
ret = ret.rsplit(".", 1)[0]
except Exception: # pragma: no cover
log.exception("Error finding a default vol name")
return ret
def _default_suffix(self):
vol = self._make_stub_vol()
if vol.file_type != vol.TYPE_FILE:
return ""
return StorageVolume.get_file_extension_for_format(self._get_config_format())
def _should_default_sparse(self):
return self._get_config_format() == "qcow2"
def _can_sparse(self):
dtype = self._parent_pool.xmlobj.get_disk_type()
ptype = self._parent_pool.xmlobj.type
return dtype == StorageVolume.TYPE_FILE or ptype in [StoragePool.TYPE_ZFS]
def _show_sparse(self):
uiutil.set_grid_row_visible(self.widget("vol-nonsparse"), self._can_sparse())
def _can_backing(self):
if self._parent_pool.get_type() == "logical":
return True
if self._get_config_format() == "qcow2":
return True
return False
def _show_backing(self):
uiutil.set_grid_row_visible(self.widget("backing-expander"), self._can_backing())
def _browse_file(self):
if self._storage_browser is None:
def cb(src, text):
ignore = src
self.widget("backing-store").set_text(text)
from .storagebrowse import vmmStorageBrowser
self._storage_browser = vmmStorageBrowser(self.conn)
self._storage_browser.set_finish_cb(cb)
self._storage_browser.topwin.set_modal(self.topwin.get_modal())
self._storage_browser.set_browse_reason(vmmStorageBrowser.REASON_IMAGE)
self._storage_browser.show(self.topwin)
def _show_err(self, info, details=None):
self.err.show_err(info, details, modal=self.topwin.get_modal())
###################
# Object building #
###################
def _make_stub_vol(self, xml=None):
vol = StorageVolume(self.conn.get_backend(), parsexml=xml)
vol.pool = self._parent_pool.get_backend()
return vol
def _build_xmlobj_from_xmleditor(self):
xml = self._xmleditor.get_xml()
log.debug("Using XML from xmleditor:\n%s", xml)
return self._make_stub_vol(xml=xml)
def _build_xmlobj_from_ui(self):
name = self.widget("vol-name").get_text()
suffix = self.widget("vol-name-suffix").get_text()
volname = name + suffix
fmt = self._get_config_format()
cap = self.widget("vol-capacity").get_value()
nonsparse = self.widget("vol-nonsparse").get_active()
backing = self.widget("backing-store").get_text()
alloc = 0
if nonsparse:
alloc = cap
vol = self._make_stub_vol()
vol.name = volname
vol.capacity = cap * 1024 * 1024 * 1024
vol.allocation = alloc * 1024 * 1024 * 1024
if backing:
vol.backing_store = backing
if fmt:
vol.format = fmt
return vol
def _build_xmlobj(self, check_xmleditor):
try:
xmlobj = self._build_xmlobj_from_ui()
if check_xmleditor and self._xmleditor.is_xml_selected():
xmlobj = self._build_xmlobj_from_xmleditor()
return xmlobj
except Exception as e:
self.err.show_err(_("Error building XML: %s") % str(e))
##################
# Object install #
##################
def _pool_refreshed_cb(self, pool, volname):
vol = pool.get_volume_by_name(volname)
self.emit("vol-created", pool, vol)
def _finish_cb(self, error, details, vol):
self.reset_finish_cursor()
if error: # pragma: no cover
error = _("Error creating vol: %s") % error
self._show_err(error, details=details)
return
self._parent_pool.connect("refreshed", self._pool_refreshed_cb, vol.name)
self.idle_add(self._parent_pool.refresh)
self.close()
def _finish(self):
vol = self._build_xmlobj(check_xmleditor=True)
if not vol:
return
try:
vol.validate()
except Exception as e:
return self._show_err(_("Error validating volume: %s") % str(e))
self.set_finish_cursor()
progWin = vmmAsyncJob(
self._async_vol_create,
[vol],
self._finish_cb,
[vol],
_("Creating storage volume..."),
_("Creating the storage volume may take a while..."),
self.topwin,
)
progWin.run()
def _async_vol_create(self, asyncjob, vol):
conn = self.conn.get_backend()
# Lookup different pool obj
newpool = conn.storagePoolLookupByName(self._parent_pool.get_name())
vol.pool = newpool
meter = asyncjob.get_meter()
log.debug("Starting background vol creation.")
vol.install(meter=meter)
log.debug("vol creation complete.")
################
# UI listeners #
################
def _xmleditor_xml_requested_cb(self, src):
xmlobj = self._build_xmlobj(check_xmleditor=False)
self._xmleditor.set_xml(xmlobj and xmlobj.get_xml() or "")
def _vol_format_changed_cb(self, src):
self._show_sparse()
self.widget("vol-nonsparse").set_active(not self._should_default_sparse())
self._show_backing()
self.widget("vol-name").emit("changed")
def _vol_name_changed_cb(self, src):
text = src.get_text()
suffix = self._default_suffix()
if "." in text:
suffix = ""
self.widget("vol-name-suffix").set_text(suffix)
def _browse_backing_clicked_cb(self, src):
self._browse_file()
def _create_clicked_cb(self, src):
self._finish()
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