Fix xpath building for data nodes addressing YANG augmentation
Issue-ID: CPS-316
Change-Id: I8aa0960c2a6af2b8fe5bc2fb90efe36baee7a881
Signed-off-by: Ruslan Kashapov <ruslan.kashapov@pantheon.tech>
diff --git a/cps-service/src/test/resources/ietf/ietf-network-topology@2018-02-26.yang b/cps-service/src/test/resources/ietf/ietf-network-topology@2018-02-26.yang
new file mode 100644
index 0000000..1ec944d
--- /dev/null
+++ b/cps-service/src/test/resources/ietf/ietf-network-topology@2018-02-26.yang
@@ -0,0 +1,294 @@
+module ietf-network-topology {
+ yang-version 1.1;
+ namespace "urn:ietf:params:xml:ns:yang:ietf-network-topology";
+ prefix nt;
+
+ import ietf-inet-types {
+ prefix inet;
+ reference
+ "RFC 6991: Common YANG Data Types";
+ }
+ import ietf-network {
+ prefix nw;
+ reference
+ "RFC 8345: A YANG Data Model for Network Topologies";
+ }
+
+ organization
+ "IETF I2RS (Interface to the Routing System) Working Group";
+
+ contact
+ "WG Web: <https://datatracker.ietf.org/wg/i2rs/>
+ WG List: <mailto:i2rs@ietf.org>
+
+ Editor: Alexander Clemm
+ <mailto:ludwig@clemm.org>
+
+ Editor: Jan Medved
+ <mailto:jmedved@cisco.com>
+
+ Editor: Robert Varga
+ <mailto:robert.varga@pantheon.tech>
+
+ Editor: Nitin Bahadur
+ <mailto:nitin_bahadur@yahoo.com>
+
+ Editor: Hariharan Ananthakrishnan
+ <mailto:hari@packetdesign.com>
+
+ Editor: Xufeng Liu
+ <mailto:xufeng.liu.ietf@gmail.com>";
+
+ description
+ "This module defines a common base model for a network topology,
+ augmenting the base network data model with links to connect
+ nodes, as well as termination points to terminate links
+ on nodes.
+
+ Copyright (c) 2018 IETF Trust and the persons identified as
+ authors of the code. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or
+ without modification, is permitted pursuant to, and subject
+ to the license terms contained in, the Simplified BSD License
+ set forth in Section 4.c of the IETF Trust's Legal Provisions
+ Relating to IETF Documents
+ (https://trustee.ietf.org/license-info).
+
+ This version of this YANG module is part of RFC 8345;
+ see the RFC itself for full legal notices.";
+
+ revision 2018-02-26 {
+ description
+ "Initial revision.";
+ reference
+ "RFC 8345: A YANG Data Model for Network Topologies";
+ }
+
+ typedef link-id {
+ type inet:uri;
+ description
+ "An identifier for a link in a topology. The precise
+ structure of the link-id will be up to the implementation.
+ The identifier SHOULD be chosen such that the same link in a
+ real network topology will always be identified through the
+ same identifier, even if the data model is instantiated in
+ separate datastores. An implementation MAY choose to capture
+ semantics in the identifier -- for example, to indicate the
+ type of link and/or the type of topology of which the link is
+ a part.";
+ }
+
+ typedef tp-id {
+ type inet:uri;
+ description
+ "An identifier for termination points on a node. The precise
+ structure of the tp-id will be up to the implementation.
+ The identifier SHOULD be chosen such that the same termination
+ point in a real network topology will always be identified
+ through the same identifier, even if the data model is
+ instantiated in separate datastores. An implementation MAY
+ choose to capture semantics in the identifier -- for example,
+ to indicate the type of termination point and/or the type of
+ node that contains the termination point.";
+ }
+
+ grouping link-ref {
+ description
+ "This grouping can be used to reference a link in a specific
+ network. Although it is not used in this module, it is
+ defined here for the convenience of augmenting modules.";
+ leaf link-ref {
+ type leafref {
+ path "/nw:networks/nw:network[nw:network-id=current()/../"+
+ "network-ref]/nt:link/nt:link-id";
+ require-instance false;
+ }
+ description
+ "A type for an absolute reference to a link instance.
+ (This type should not be used for relative references.
+ In such a case, a relative path should be used instead.)";
+ }
+ uses nw:network-ref;
+ }
+
+ grouping tp-ref {
+ description
+ "This grouping can be used to reference a termination point
+ in a specific node. Although it is not used in this module,
+ it is defined here for the convenience of augmenting
+ modules.";
+ leaf tp-ref {
+ type leafref {
+ path "/nw:networks/nw:network[nw:network-id=current()/../"+
+ "network-ref]/nw:node[nw:node-id=current()/../"+
+ "node-ref]/nt:termination-point/nt:tp-id";
+ require-instance false;
+ }
+ description
+ "A type for an absolute reference to a termination point.
+ (This type should not be used for relative references.
+ In such a case, a relative path should be used instead.)";
+ }
+ uses nw:node-ref;
+ }
+
+ augment "/nw:networks/nw:network" {
+ description
+ "Add links to the network data model.";
+ list link {
+ key "link-id";
+ description
+ "A network link connects a local (source) node and
+ a remote (destination) node via a set of the respective
+ node's termination points. It is possible to have several
+ links between the same source and destination nodes.
+ Likewise, a link could potentially be re-homed between
+ termination points. Therefore, in order to ensure that we
+ would always know to distinguish between links, every link
+ is identified by a dedicated link identifier. Note that a
+ link models a point-to-point link, not a multipoint link.";
+ leaf link-id {
+ type link-id;
+ description
+ "The identifier of a link in the topology.
+ A link is specific to a topology to which it belongs.";
+ }
+ container source {
+ description
+ "This container holds the logical source of a particular
+ link.";
+ leaf source-node {
+ type leafref {
+ path "../../../nw:node/nw:node-id";
+ require-instance false;
+ }
+ description
+ "Source node identifier. Must be in the same topology.";
+ }
+ leaf source-tp {
+ type leafref {
+ path "../../../nw:node[nw:node-id=current()/../"+
+ "source-node]/termination-point/tp-id";
+ require-instance false;
+ }
+ description
+ "This termination point is located within the source node
+ and terminates the link.";
+ }
+ }
+
+ container destination {
+ description
+ "This container holds the logical destination of a
+ particular link.";
+ leaf dest-node {
+ type leafref {
+ path "../../../nw:node/nw:node-id";
+ require-instance false;
+ }
+ description
+ "Destination node identifier. Must be in the same
+ network.";
+ }
+ leaf dest-tp {
+ type leafref {
+ path "../../../nw:node[nw:node-id=current()/../"+
+ "dest-node]/termination-point/tp-id";
+ require-instance false;
+ }
+ description
+ "This termination point is located within the
+ destination node and terminates the link.";
+ }
+ }
+ list supporting-link {
+ key "network-ref link-ref";
+ description
+ "Identifies the link or links on which this link depends.";
+ leaf network-ref {
+ type leafref {
+ path "../../../nw:supporting-network/nw:network-ref";
+ require-instance false;
+ }
+ description
+ "This leaf identifies in which underlay topology
+ the supporting link is present.";
+ }
+
+ leaf link-ref {
+ type leafref {
+ path "/nw:networks/nw:network[nw:network-id=current()/"+
+ "../network-ref]/link/link-id";
+ require-instance false;
+ }
+ description
+ "This leaf identifies a link that is a part
+ of this link's underlay. Reference loops in which
+ a link identifies itself as its underlay, either
+ directly or transitively, are not allowed.";
+ }
+ }
+ }
+ }
+ augment "/nw:networks/nw:network/nw:node" {
+ description
+ "Augments termination points that terminate links.
+ Termination points can ultimately be mapped to interfaces.";
+ list termination-point {
+ key "tp-id";
+ description
+ "A termination point can terminate a link.
+ Depending on the type of topology, a termination point
+ could, for example, refer to a port or an interface.";
+ leaf tp-id {
+ type tp-id;
+ description
+ "Termination point identifier.";
+ }
+ list supporting-termination-point {
+ key "network-ref node-ref tp-ref";
+ description
+ "This list identifies any termination points on which a
+ given termination point depends or onto which it maps.
+ Those termination points will themselves be contained
+ in a supporting node. This dependency information can be
+ inferred from the dependencies between links. Therefore,
+ this item is not separately configurable. Hence, no
+ corresponding constraint needs to be articulated.
+ The corresponding information is simply provided by the
+ implementing system.";
+
+ leaf network-ref {
+ type leafref {
+ path "../../../nw:supporting-node/nw:network-ref";
+ require-instance false;
+ }
+ description
+ "This leaf identifies in which topology the
+ supporting termination point is present.";
+ }
+ leaf node-ref {
+ type leafref {
+ path "../../../nw:supporting-node/nw:node-ref";
+ require-instance false;
+ }
+ description
+ "This leaf identifies in which node the supporting
+ termination point is present.";
+ }
+ leaf tp-ref {
+ type leafref {
+ path "/nw:networks/nw:network[nw:network-id=current()/"+
+ "../network-ref]/nw:node[nw:node-id=current()/../"+
+ "node-ref]/termination-point/tp-id";
+ require-instance false;
+ }
+ description
+ "Reference to the underlay node (the underlay node must
+ be in a different topology).";
+ }
+ }
+ }
+ }
+}