def subscribe():
conn = sr.Connection("subscriber")
sess = sr.Session(conn, sr.SR_DS_RUNNING)
subscribe1 = sr.Subscribe(sess)
subscribe1.module_change_subscribe('nemea-test-1', change_cb)
subscribe2 = sr.Subscribe(sess)
subscribe2.module_change_subscribe('link-traffic-test-1', change_cb)
sr.global_loop()
def createDataTreeLargeExampleModule(count, datastore):
"""
Add data to example-module.
"""
conn = sr.Connection("load test")
sess = sr.Session(conn, datastore)
subs = sr.Subscribe(sess)
for i in range(count):
xpath = "/example-module:container/list[key1='key" + str(
i) + "'][key2='key" + str(i) + "']/leaf"
val = sr.Val("leaf" + str(i), sr.SR_STRING_T)
sess.set_item(xpath, val)
sess.commit()
def createDataTreeLargeIETFinterfacesModule(count, datastore):
"""
Add data to ietf-interfaces.
"""
conn = sr.Connection("load test")
sess = sr.Session(conn, datastore)
subs = sr.Subscribe(sess)
for i in range(count):
xpath = "/ietf-interfaces:interfaces/interface[name='eth" + str(
i) + "']"
xpath_ip = xpath + "/ietf-ip:ipv4/address[ip='192.168.1." + str(
i) + "]"
x_name = xpath + "/name"
x_type = xpath + "/type"
x_desc = xpath + "/description"
x_enabled = xpath + "/enabled"
x_ipv4_enabled = xpath + "/ietf-ip:ipv4/enabled"
x_ipv4_mtu = xpath + "/ietf-ip:ipv4/mtu"
x_ipv4_forward = xpath + "/ietf-ip:ipv4/forwarding"
x_prefix_len = xpath_ip + "/prefix-length"
val = sr.Val("Ethernet 0", sr.SR_STRING_T)
sess.set_item(x_desc, val)
val = sr.Val("iana-if-type:ethernetCsmacd", sr.SR_IDENTITYREF_T)
sess.set_item(x_type, val)
val = sr.Val(True, sr.SR_BOOL_T)
sess.set_item(x_enabled, val)
val = sr.Val(True, sr.SR_BOOL_T)
sess.set_item(x_ipv4_enabled, val)
val = sr.Val(1500, sr.SR_UINT16_T)
sess.set_item(x_ipv4_mtu, val)
val = sr.Val(False, sr.SR_BOOL_T)
sess.set_item(x_ipv4_forward, val)
sess.commit()
def clearDataTree(module_name, datastore):
"""
Clear yang model.
"""
conn = sr.Connection("clear")
sess = sr.Session(conn, datastore)
subs = sr.Subscribe(sess)
xpath = "/" + module_name + ":*//*"
values = sess.get_items(xpath)
if values == None:
return
for i in range(values.val_cnt()):
sess.delete_item(values.val(i).xpath())
sess.commit()
def module_change_cb(sess, module_name, event, private_ctx):
print(
"\n\n ========== CONFIG HAS CHANGED, CURRENT RUNNING CONFIG: ==========\n"
)
try:
print("\n\n ========== Notification " + ev_to_str(event) +
" =============================================\n")
if (sr.SR_EV_APPLY == event):
print(
"\n ========== CONFIG HAS CHANGED, CURRENT RUNNING CONFIG: ==========\n"
)
print_current_config(sess, module_name)
print(
"\n ========== CHANGES: =============================================\n"
)
change_path = "/", module_name + ":*"
subscribe = sr.Subscribe(sess)
it = subscribe.get_changes_iter(change_path)
while True:
change = subscribe.get_change_next(it)
if change == None:
break
print_change(change.oper(), change.old_val(), change.new_val())
print(
"\n\n ========== END OF CHANGES =======================================\n"
)
except Exception as e:
print(e)
return sr.SR_ERR_OK
module_name = "ietf-interfaces"
if len(sys.argv) > 1:
module_name = sys.argv[1]
else:
print(
"\nYou can pass the module name to be subscribed as the first argument"
)
# connect to sysrepo
conn = sr.Connection("example_application")
# start session
sess = sr.Session(conn)
# subscribe for changes in running config */
subscribe = sr.Subscribe(sess)
subscribe.module_change_subscribe(
module_name, module_change_cb, None, 0,
sr.SR_SUBSCR_DEFAULT | sr.SR_SUBSCR_APPLY_ONLY)
print("\n\n ========== READING STARTUP CONFIG: ==========\n")
try:
print_current_config(sess, module_name)
except Exception as e:
print(e)
print("\n\n ========== STARTUP CONFIG APPLIED AS RUNNING ==========\n")
sr.global_loop()