365 lines
12 KiB
Python
365 lines
12 KiB
Python
#
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# Copyright (C) 2008, 2013, 2014 Red Hat, Inc.
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# Copyright (C) 2008 Cole Robinson <crobinso@redhat.com>
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#
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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; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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#
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import logging
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# pylint: disable=E0611
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from gi.repository import GObject
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from gi.repository import Gtk
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from gi.repository import Gdk
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# pylint: enable=E0611
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from virtManager import uihelpers
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from virtManager.baseclass import vmmGObjectUI
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from virtManager.asyncjob import vmmAsyncJob
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from virtinst import StorageVolume
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class vmmCreateVolume(vmmGObjectUI):
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__gsignals__ = {
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"vol-created": (GObject.SignalFlags.RUN_FIRST, None, []),
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}
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def __init__(self, conn, parent_pool):
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vmmGObjectUI.__init__(self, "createvol.ui", "vmm-create-vol")
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self.conn = conn
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self.parent_pool = parent_pool
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self.name_hint = None
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self.vol = None
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self.storage_browser = None
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self.builder.connect_signals({
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"on_vmm_create_vol_delete_event" : self.close,
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"on_vol_cancel_clicked" : self.close,
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"on_vol_create_clicked" : self.finish,
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"on_vol_name_changed" : self.vol_name_changed,
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"on_vol_format_changed" : self.vol_format_changed,
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"on_backing_store_changed" : self._show_alloc,
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"on_vol_allocation_value_changed" : self.vol_allocation_changed,
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"on_vol_capacity_value_changed" : self.vol_capacity_changed,
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"on_backing_browse_clicked" : self.browse_backing,
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})
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self.bind_escape_key_close()
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self._init_state()
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self.reset_state()
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def show(self, parent):
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logging.debug("Showing new volume wizard")
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self.reset_state()
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self.topwin.set_transient_for(parent)
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self.topwin.present()
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def close(self, ignore1=None, ignore2=None):
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logging.debug("Closing new volume wizard")
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self.topwin.hide()
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if self.storage_browser:
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self.storage_browser.close()
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self.set_modal(False)
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return 1
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def _cleanup(self):
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self.conn = None
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self.parent_pool = None
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if self.storage_browser:
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self.storage_browser.cleanup()
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self.storage_browser = None
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def set_name_hint(self, hint):
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self.name_hint = hint
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def set_modal(self, modal):
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self.topwin.set_modal(bool(modal))
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def set_parent_pool(self, conn, pool):
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self.conn = conn
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self.parent_pool = pool
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def default_vol_name(self):
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if not self.name_hint:
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return ""
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suffix = self.default_suffix()
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ret = ""
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try:
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ret = StorageVolume.find_free_name(
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self.parent_pool.get_backend(), self.name_hint, suffix=suffix)
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except:
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logging.exception("Error finding a default vol name")
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return ret
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def default_suffix(self):
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suffix = ""
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if self.vol.file_type == self.vol.TYPE_FILE:
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suffix = ".img"
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return suffix
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def _init_state(self):
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blue = Gdk.color_parse("#0072A8")
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self.widget("header").modify_bg(Gtk.StateType.NORMAL, blue)
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format_list = self.widget("vol-format")
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format_model = Gtk.ListStore(str, str)
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format_list.set_model(format_model)
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text2 = Gtk.CellRendererText()
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format_list.pack_start(text2, False)
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format_list.add_attribute(text2, 'text', 1)
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def _make_stub_vol(self):
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self.vol = StorageVolume(self.conn.get_backend())
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self.vol.pool = self.parent_pool.get_backend()
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def _can_alloc(self):
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if self.parent_pool.get_type() == "logical":
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# Sparse LVM volumes don't auto grow, so alloc=0 is useless
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return False
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if self.get_config_format() == "qcow2":
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return False
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if (self.widget("backing-store").is_visible() and
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self.widget("backing-store").get_text()):
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return False
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return True
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def _show_alloc(self, *args, **kwargs):
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ignore = args
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ignore = kwargs
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uihelpers.set_grid_row_visible(
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self.widget("vol-allocation"), self._can_alloc())
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def _can_backing(self):
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if self.parent_pool.get_type() == "logical":
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return True
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if self.get_config_format() == "qcow2":
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return True
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return False
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def _show_backing(self):
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uihelpers.set_grid_row_visible(
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self.widget("backing-expander"), self._can_backing())
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def reset_state(self):
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self._make_stub_vol()
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self.widget("vol-name").set_text("")
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self.widget("vol-name").grab_focus()
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self.vol_name_changed(self.widget("vol-name"))
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self.populate_vol_format()
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hasformat = bool(len(self.vol.list_formats()))
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uihelpers.set_grid_row_visible(self.widget("vol-format"), hasformat)
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if hasformat:
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# Select the default storage format
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self.widget("vol-format").set_active(0)
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default = self.conn.get_default_storage_format()
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for row in self.widget("vol-format").get_model():
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if row[0] == default:
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self.widget("vol-format").set_active_iter(row.iter)
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break
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default_alloc = 0
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default_cap = 8
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self.widget("backing-store").set_text("")
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alloc = default_alloc
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if not self._can_alloc():
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alloc = default_cap
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self._show_alloc()
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self._show_backing()
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self.widget("backing-expander").set_expanded(False)
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self.widget("vol-allocation").set_range(0,
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int(self.parent_pool.get_available() / 1024 / 1024 / 1024))
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self.widget("vol-allocation").set_value(alloc)
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self.widget("vol-capacity").set_range(0.1,
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int(self.parent_pool.get_available() / 1024 / 1024 / 1024))
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self.widget("vol-capacity").set_value(default_cap)
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self.widget("vol-parent-name").set_markup(
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"<b>" + self.parent_pool.get_name() + "'s</b>")
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self.widget("vol-parent-space").set_text(
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self.parent_pool.get_pretty_available())
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def get_config_format(self):
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format_combo = self.widget("vol-format")
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model = format_combo.get_model()
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if format_combo.get_active_iter() is not None:
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model = format_combo.get_model()
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return model.get_value(format_combo.get_active_iter(), 0)
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return None
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def populate_vol_format(self):
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stable_whitelist = ["raw", "qcow2", "qed"]
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model = self.widget("vol-format").get_model()
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model.clear()
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formats = self.vol.list_formats()
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if self.vol.list_create_formats() is not None:
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formats = self.vol.list_create_formats()
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if (self.vol.file_type == self.vol.TYPE_FILE and
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self.conn.stable_defaults()):
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newfmts = []
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for f in stable_whitelist:
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if f in formats:
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newfmts.append(f)
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formats = newfmts
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for f in formats:
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model.append([f, f])
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def vol_name_changed(self, src):
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text = src.get_text()
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suffix = self.default_suffix()
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if "." in text:
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suffix = ""
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self.widget("vol-name-suffix").set_text(suffix)
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self.widget("vol-create").set_sensitive(bool(text))
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def vol_allocation_changed(self, src):
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cap_widget = self.widget("vol-capacity")
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alloc = src.get_value()
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cap = cap_widget.get_value()
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if alloc > cap:
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cap_widget.set_value(alloc)
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def vol_capacity_changed(self, src):
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alloc_widget = self.widget("vol-allocation")
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cap = src.get_value()
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alloc = self.widget("vol-allocation").get_value()
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if cap < alloc:
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alloc_widget.set_value(cap)
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def vol_format_changed(self, src):
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ignore = src
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self._show_alloc()
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self._show_backing()
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def browse_backing(self, src):
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ignore = src
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self._browse_file()
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def _finish_cb(self, error, details):
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self.topwin.set_sensitive(True)
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self.topwin.get_window().set_cursor(
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Gdk.Cursor.new(Gdk.CursorType.TOP_LEFT_ARROW))
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if error:
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error = _("Error creating vol: %s") % error
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self.show_err(error,
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details=details)
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else:
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# vol-created will refresh the parent pool
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self.emit("vol-created")
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self.close()
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def finish(self, src_ignore):
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try:
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if not self.validate():
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return
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except Exception, e:
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self.show_err(_("Uncaught error validating input: %s") % str(e))
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return
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logging.debug("Creating volume with xml:\n%s",
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self.vol.get_xml_config())
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self.topwin.set_sensitive(False)
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self.topwin.get_window().set_cursor(
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Gdk.Cursor.new(Gdk.CursorType.WATCH))
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progWin = vmmAsyncJob(self._async_vol_create, [],
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self._finish_cb, [],
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_("Creating storage volume..."),
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_("Creating the storage volume may take a "
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"while..."),
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self.topwin)
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progWin.run()
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def _async_vol_create(self, asyncjob):
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conn = self.conn.get_backend()
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# Lookup different pool obj
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newpool = conn.storagePoolLookupByName(self.parent_pool.get_name())
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self.vol.pool = newpool
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meter = asyncjob.get_meter()
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logging.debug("Starting backround vol creation.")
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self.vol.install(meter=meter)
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logging.debug("vol creation complete.")
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def validate(self):
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name = self.widget("vol-name").get_text()
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suffix = self.widget("vol-name-suffix").get_text()
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volname = name + suffix
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fmt = self.get_config_format()
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alloc = self.widget("vol-allocation").get_value()
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cap = self.widget("vol-capacity").get_value()
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backing = self.widget("backing-store").get_text()
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if not self.widget("vol-allocation").get_visible():
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alloc = cap
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try:
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self._make_stub_vol()
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self.vol.name = volname
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self.vol.capacity = (cap * 1024 * 1024 * 1024)
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self.vol.allocation = (alloc * 1024 * 1024 * 1024)
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if backing:
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self.vol.backing_store = backing
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if fmt:
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self.vol.format = fmt
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self.vol.validate()
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except ValueError, e:
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return self.val_err(_("Volume Parameter Error"), e)
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return True
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def show_err(self, info, details=None):
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self.err.show_err(info, details, modal=self.topwin.get_modal())
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def val_err(self, info, details):
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return self.err.val_err(info, details, modal=self.topwin.get_modal())
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def _browse_file(self):
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if self.storage_browser is None:
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def cb(src, text):
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ignore = src
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self.widget("backing-store").set_text(text)
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from virtManager.storagebrowse import vmmStorageBrowser
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self.storage_browser = vmmStorageBrowser(self.conn)
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self.storage_browser.connect("storage-browse-finish", cb)
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self.storage_browser.topwin.set_modal(self.topwin.get_modal())
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self.storage_browser.can_new_volume = False
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self.storage_browser.set_browse_reason(
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self.config.CONFIG_DIR_IMAGE)
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self.storage_browser.show(self.topwin, self.conn)
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