def push_props_to_isl(tx, subject, *fields):
if not fields:
return
copy_fields = {
name: 'source.' + name for name in fields}
q = textwrap.dedent("""
MATCH (source:link_props)
WHERE source.src_switch = $src_switch
AND source.src_port = $src_port
AND source.dst_switch = $dst_switch
AND source.dst_port = $dst_port
MATCH
(:switch {name: source.src_switch})
-
[target:isl {
src_switch: source.src_switch,
src_port: source.src_port,
dst_switch: source.dst_switch,
dst_port: source.dst_port
}]
->
(:switch {name: source.dst_switch})
""") + db.format_set_fields(
db.escape_fields(copy_fields, raw_values=True),
field_prefix='target.')
p = _make_match(subject)
db.log_query('link props to ISL', q, p)
tx.run(q, p)
def set_link_props(tx, isl, props):
match = _make_match(isl)
q = textwrap.dedent("""
MATCH (target:link_props {
src_switch: $src_switch,
src_port: $src_port,
dst_switch: $dst_switch,
dst_port: $dst_port})
RETURN target""")
logger.debug('link_props lookup query:\n%s', q)
cursor = tx.run(q, match)
try:
target = db.fetch_one(cursor)['target']
except exc.DBEmptyResponse:
raise exc.DBRecordNotFound(q, match)
origin, update = _locate_changes(target, props)
if update:
q = textwrap.dedent("""
MATCH (target:link_props)
WHERE id(target)=$target_id
""") + db.format_set_fields(db.escape_fields(update),
field_prefix='target.')
logger.debug('Push link_props properties: %r', update)
tx.run(q, {'target_id': py2neo.remote(target)._id})
sync_with_link_props(tx, isl, *update.keys())
return origin
def sync_with_link_props(tx, isl, *fields):
copy_fields = {name: 'source.' + name for name in fields}
q = textwrap.dedent("""
MATCH (source:link_props)
WHERE source.src_switch = $src_switch
AND source.src_port = $src_port
AND source.dst_switch = $dst_switch
AND source.dst_port = $dst_port
MATCH
(:switch {name: $src_switch})
-
[target:isl {
src_switch: $src_switch,
src_port: $src_port,
dst_switch: $dst_switch,
dst_port: $dst_port
}]
->
(:switch {name: $dst_switch})
""") + db.format_set_fields(
db.escape_fields(copy_fields, raw_values=True), field_prefix='target.')
p = _make_match(isl)
db.log_query('propagate link props to ISL', q, p)
tx.run(q, p)
def update_config():
q = 'MERGE (target:config {name: "config"})\n'
q += db.format_set_fields(db.escape_fields(
{x: '$' + x for x in features_status_app_to_transport_map.values()},
raw_values=True), field_prefix='target.')
p = {
y: features_status[x]
for x, y in features_status_app_to_transport_map.items()}
with graph.begin() as tx:
db.log_query('CONFIG update', q, p)
tx.run(q, p)
def set_props(tx, isl, props):
target = fetch(tx, isl)
origin, update = db.locate_changes(target, props)
if update:
q = textwrap.dedent("""
MATCH (:switch)-[target:isl]->(:switch)
WHERE id(target)=$target_id
""") + db.format_set_fields(db.escape_fields(update),
field_prefix='target.')
logger.debug('Push ISL properties: %r', update)
tx.run(q, {'target_id': db.neo_id(target)})
return origin
def set_props(tx, subject):
db_subject = fetch(tx, subject)
origin, update = db.locate_changes(db_subject, subject.props_db_view())
if update:
q = textwrap.dedent("""
MATCH (target:link_props)
WHERE id(target)=$target_id
""") + db.format_set_fields(
db.escape_fields(update), field_prefix='target.')
p = {'target_id': db.neo_id(db_subject)}
db.log_query('propagate link props to ISL', q, p)
tx.run(q, p)
return origin, update.keys()
def set_link_props(tx, isl, props):
target = fetch_link_props(tx, isl)
origin, update = _locate_changes(target, props)
if update:
q = textwrap.dedent("""
MATCH (target:link_props)
WHERE id(target)=$target_id
""") + db.format_set_fields(db.escape_fields(update),
field_prefix='target.')
p = {'target_id': db.neo_id(target)}
db.log_query('link_props set props', q, p)
tx.run(q, p)
sync_with_link_props(tx, isl, *update.keys())
return origin
def create_switch(self):
switch_id = self.payload['switch_id']
logger.info('Switch %s creation request: timestamp=%s',
switch_id, self.timestamp)
with graph.begin() as tx:
flow_utils.precreate_switches(tx, switch_id)
p = {
'address': self.payload['address'],
'hostname': self.payload['hostname'],
'description': self.payload['description'],
'controller': self.payload['controller'],
'state': 'active'}
q = 'MATCH (target:switch {name: $dpid})\n' + db.format_set_fields(
db.escape_fields(
{x: '$' + x for x in p}, raw_values=True),
field_prefix='target.')
p['dpid'] = switch_id
db.log_query('SWITCH create', q, p)
tx.run(q, p)
def set_props(tx, isl, props):
match = _make_match(isl)
q = textwrap.dedent("""
MATCH
(:switch {name: $src_switch})
-
[target:isl {
src_switch: $src_switch,
src_port: $src_port,
dst_switch: $dst_switch,
dst_port: $dst_port
}]
->
(:switch {name: $dst_switch})
RETURN target""")
logger.debug('ISL lookup query:\n%s', q)
cursor = tx.run(q, match)
try:
target = db.fetch_one(cursor)['target']
except exc.DBEmptyResponse:
raise exc.DBRecordNotFound(q, match)
origin, update = _locate_changes(target, props)
if update:
q = textwrap.dedent("""
MATCH (:switch)-[target:isl]->(:switch)
WHERE id(target)=$target_id
""") + db.format_set_fields(db.escape_fields(update),
field_prefix='target.')
logger.debug('Push ISL properties: %r', update)
tx.run(q, {'target_id': db.neo_id(target)})
return origin
