root / snf-cyclades-app / synnefo / volume / util.py @ 18ca395d
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from synnefo.db import models |
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from snf_django.lib.api import faults |
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from synnefo.api.util import get_image_dict, get_vm, image_backend |
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from synnefo.cyclades_settings import cyclades_services, BASE_HOST |
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from synnefo.lib import join_urls |
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from synnefo.lib.services import get_service_path |
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def get_volume(user_id, volume_id, for_update=False, |
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exception=faults.ItemNotFound): |
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volumes = models.Volume.objects |
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if for_update:
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volumes = volumes.select_for_update() |
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try:
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return volumes.get(id=volume_id, userid=user_id)
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except models.Volume.DoesNotExist:
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raise exception("Volume %s not found" % volume_id) |
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def get_snapshot(user_id, snapshot_id, exception=faults.ItemNotFound): |
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try:
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with image_backend(user_id) as b: |
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return b.get_snapshot(user_id, snapshot_id)
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except faults.ItemNotFound:
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raise exception("Snapshot %s not found" % snapshot_id) |
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def get_image(user_id, image_id, exception=faults.ItemNotFound): |
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try:
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return get_image_dict(image_id, user_id)
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except faults.ItemNotFound:
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raise exception("Image %s not found" % image_id) |
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def get_server(user_id, server_id, for_update=False, |
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exception=faults.ItemNotFound): |
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try:
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return get_vm(server_id, user_id, for_update=for_update,
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non_deleted=True, non_suspended=True) |
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except faults.ItemNotFound:
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raise exception("Server %s not found" % server_id) |
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VOLUME_URL = \ |
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join_urls(BASE_HOST, |
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get_service_path(cyclades_services, "volume", version="v2.0")) |
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VOLUMES_URL = join_urls(VOLUME_URL, "volumes/")
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SNAPSHOTS_URL = join_urls(VOLUME_URL, "snapshots/")
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def volume_to_links(volume_id): |
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href = join_urls(VOLUMES_URL, str(volume_id))
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return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
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def snapshot_to_links(snapshot_id): |
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href = join_urls(SNAPSHOTS_URL, str(snapshot_id))
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return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |