1 files changed, 87 insertions, 0 deletions
diff --git a/nfvparser/toscaparser/elements/interfaces.py b/nfvparser/toscaparser/elements/interfaces.py
new file mode 100644
index 0000000..47ec90a
--- /dev/null
+++ b/nfvparser/toscaparser/elements/interfaces.py
@@ -0,0 +1,87 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from toscaparser.common.exception import ExceptionCollector
+from toscaparser.common.exception import UnknownFieldError
+from toscaparser.elements.statefulentitytype import StatefulEntityType
+
+SECTIONS = (LIFECYCLE, CONFIGURE, LIFECYCLE_SHORTNAME,
+            CONFIGURE_SHORTNAME) = \
+           ('tosca.interfaces.node.lifecycle.Standard',
+            'tosca.interfaces.relationship.Configure',
+            'Standard', 'Configure')
+
+INTERFACEVALUE = (IMPLEMENTATION, INPUTS) = ('implementation', 'inputs')
+
+INTERFACE_DEF_RESERVED_WORDS = ['type', 'inputs', 'derived_from', 'version',
+                                'description']
+
+
+class InterfacesDef(StatefulEntityType):
+    '''TOSCA built-in interfaces type.'''
+
+    def __init__(self, node_type, interfacetype,
+                 node_template=None, name=None, value=None):
+        self.ntype = node_type
+        self.node_template = node_template
+        self.type = interfacetype
+        self.name = name
+        self.value = value
+        self.implementation = None
+        self.inputs = None
+        self.defs = {}
+        if interfacetype == LIFECYCLE_SHORTNAME:
+            interfacetype = LIFECYCLE
+        if interfacetype == CONFIGURE_SHORTNAME:
+            interfacetype = CONFIGURE
+        if hasattr(self.ntype, 'interfaces') \
+           and self.ntype.interfaces \
+           and interfacetype in self.ntype.interfaces:
+            interfacetype = self.ntype.interfaces[interfacetype]['type']
+        if node_type:
+            if self.node_template and self.node_template.custom_def \
+               and interfacetype in self.node_template.custom_def:
+                self.defs = self.node_template.custom_def[interfacetype]
+            else:
+                self.defs = self.TOSCA_DEF[interfacetype]
+        if value:
+            if isinstance(self.value, dict):
+                for i, j in self.value.items():
+                    if i == IMPLEMENTATION:
+                        self.implementation = j
+                    elif i == INPUTS:
+                        self.inputs = j
+                    else:
+                        what = ('"interfaces" of template "%s"' %
+                                self.node_template.name)
+                        ExceptionCollector.appendException(
+                            UnknownFieldError(what=what, field=i))
+            else:
+                self.implementation = value
+
+    @property
+    def lifecycle_ops(self):
+        if self.defs:
+            if self.type == LIFECYCLE:
+                return self._ops()
+
+    @property
+    def configure_ops(self):
+        if self.defs:
+            if self.type == CONFIGURE:
+                return self._ops()
+
+    def _ops(self):
+        ops = []
+        for name in list(self.defs.keys()):
+            ops.append(name)
+        return ops