net_lldp_interface module implementation for junos (#26915)

*  junos_lldp_interface module implementation
*  junos_lldp_interface integration test
*  net_lldp_interface module intgration test for junos
*  Add lldp configuration parameter in junos_lldp
*  Modify junos_lldp testcase as per above change
*  Add net_lldp_interface module documentation

lib/ansible/modules/network/junos/junos_lldp.py

@@ -34,11 +34,34 @@ description:
   - This module provides declarative management of LLDP service
     on Juniper JUNOS network devices.
 options:
+  interval:
+    description:
+      - Frequency at which LLDP advertisements are sent (in seconds).
+  transmit_delay:
+    description:
+      - Specify the number of seconds the device waits before sending
+        advertisements to neighbors after a change is made in local system.
+  hold_multiplier:
+    description:
+      - Specify the number of seconds that LLDP information is held before it is
+        discarded. The multiplier value is used in combination with the
+        C(interval) value.
+  enable:
+    description:
+      - If value is C(True) it enable LLDP protocol on remote device, if value
+        is C(False) it disables LLDP protocol.
+    default: present
+    choices: [True, False]
   state:
     description:
-      - State of the LLDP configuration.
+      - Value of C(present) ensures given LLDP configuration
+        is present on device and LLDP is enabled, for value of C(absent)
+        LLDP configuration is deleted and LLDP is in disabled state.
+        Value C(enabled) ensures LLDP protocol is enabled and LLDP configuration
+        if any is configured on remote device, for value of C(disabled) it ensures
+        LLDP protocol is disabled any LLDP configuration if any is still present.
     default: present
-    choices: ['present', 'absent']
+    choices: ['present', 'absent', 'enabled', 'disabled']
   active:
     description:
       - Specifies whether or not the configuration is active or deactivated
@@ -54,10 +77,24 @@ notes:
 EXAMPLES = """
 - name: Enable LLDP service
   junos_lldp:
-    state: present
+    state: enabled
 
 - name: Disable LLDP service
-  vyos_lldp:
+  junos_lldp:
+    state: disabled
+
+- name: Set LLDP parameters
+  junos_lldp:
+    interval: 10
+    hold_multiplier: 5
+    transmit_delay: 30
+    state: present
+
+- name: Delete LLDP parameters
+  junos_lldp:
+    interval: 10
+    hold_multiplier: 5
+    transmit_delay: 30
     state: absent
 """
 
@@ -89,12 +126,39 @@ except ImportError:
 USE_PERSISTENT_CONNECTION = True
 
 
+def validate_interval(value, module):
+    if not 5 <= value <= 32768:
+        module.fail_json(msg='interval must be between 5 and 32768')
+
+
+def validate_hold_multiplier(value, module):
+    if not 5 <= value <= 32768:
+        module.fail_json(msg='hold_multiplier must be between 2 and 10')
+
+
+def validate_transmit_delay(value, module):
+    if not 1 <= value <= 8192:
+        module.fail_json(msg='transmit_delay must be between 2 and 10')
+
+
+def validate_param_values(module, obj):
+    for key in obj:
+        # validate the param value (if validator func exists)
+        validator = globals().get('validate_%s' % key)
+        if callable(validator):
+            validator(module.params.get(key), module)
+
+
 def main():
     """ main entry point for module execution
     """
     argument_spec = dict(
+        interval=dict(type='int'),
+        transmit_delay=dict(type='int'),
+        hold_multiplier=dict(type='int'),
         purge=dict(default=False, type='bool'),
-        state=dict(default='present', choices=['present', 'absent']),
+        state=dict(default='present', choices=['present', 'absent', 'enabled', 'disabled']),
+        active=dict(default=True, type='bool')
     )
 
     argument_spec.update(junos_argument_spec)
@@ -114,11 +178,17 @@ def main():
 
     param_to_xpath_map = collections.OrderedDict()
     param_to_xpath_map.update([
+        ('interval', {'xpath': 'advertisement-interval', 'leaf_only': True}),
+        ('transmit_delay', {'xpath': 'transmit-delay', 'leaf_only': True}),
+        ('hold_multiplier', {'xpath': 'hold-multiplier', 'leaf_only': True}),
         ('disable', {'xpath': 'disable', 'tag_only': True, 'is_key': True})
     ])
 
     state = module.params.get('state')
-    module.params['disable'] = True if state == 'absent' else False
+    module.params['disable'] = True if state in ('disabled', 'absent') else False
+
+    if state in ('enabled', 'disabled'):
+        module.params['state'] = 'present'
 
     want = map_params_to_obj(module, param_to_xpath_map)
     ele = map_obj_to_ele(module, want, top)