CPS Delta API 1: Delta between 2 anchors

- CPS Delta Feature Part 1: To find delta between two anchors
   - created new endpoint deltaByDataspaceAndAnchors
   - endpoint to take dataspaceName, source anchor, target anchor,
     xpath, descendants as input
   - added new service CpsDeltaService
   - added method to find delta between DataNodes:
     getDeltaReport
   - added method to find removed data nodes: getRemovedDeltaReports
   - added method to get Added DataNodes: getAddedDeltaReports
   - added method to get Map of xpath to DataNode: convertToXPathToDataNodesMap
   - added a POJO for delta report
   - Added new JSON data for delta feature testing
   - Added groovy test files CpsDeltaServiceImplSpec and DeltaReportBuilderSpec
   - code related to update operation, will be added in
     separate commit

Issue-ID: CPS-1824
Signed-off-by: Arpit Singh <as00745003@techmahindra.com>
Change-Id: I313f0f71d04b03878be7643f709d8af1aa6df6ba

2 files changed, 203 insertions, 0 deletions

diff --git a/integration-test/src/test/resources/data/bookstore/bookstore.yang b/integration-test/src/test/resources/data/bookstore/bookstore.yang
index 6f60f1981c..9c6c42e28a 100644
--- a/integration-test/src/test/resources/data/bookstore/bookstore.yang
+++ b/integration-test/src/test/resources/data/bookstore/bookstore.yang
@@ -49,6 +49,17 @@ module stores {
             }
         }
 
+        container support-info {
+                    leaf support-office {
+                        type string;
+                    }
+                    container contact-emails {
+                        leaf email {
+                            type string;
+                        }
+                    }
+                }
+
         container container-without-leaves { }
 
         container premises {
diff --git a/integration-test/src/test/resources/data/bookstore/bookstoreDataForDeltaReport.json b/integration-test/src/test/resources/data/bookstore/bookstoreDataForDeltaReport.json
new file mode 100644
index 0000000000..73b84fc986
--- /dev/null
+++ b/integration-test/src/test/resources/data/bookstore/bookstoreDataForDeltaReport.json
@@ -0,0 +1,192 @@
+{
+  "bookstore-address": [
+    {
+      "bookstore-name": "Crossword Bookstores",
+      "address": "Bangalore, India",
+      "postal-code": "560062"
+    }
+  ],
+  "bookstore": {
+    "bookstore-name": "Easons",
+    "premises": {
+      "addresses": [
+        {
+          "house-number": 2,
+          "street": "Main Street",
+          "town": "Killarney",
+          "county": "Kerry"
+        },
+        {
+          "house-number": 24,
+          "street": "Grafton Street",
+          "town": "Dublin",
+          "county": "Dublin"
+        }
+      ]
+    },
+    "support-info": {
+      "contact-emails": {
+      }
+    },
+    "container-without-leaves": { },
+    "categories": [
+      {
+        "code": 1,
+        "name": "Kids",
+        "books" : [
+          {
+            "title": "Matilda",
+            "lang": "English",
+            "authors": ["Roald Dahl"],
+            "editions": [1988, 2000, 2023],
+            "price": 200
+          },
+          {
+            "title": "The Gruffalo",
+            "lang": "English/German",
+            "authors": ["Julia Donaldson"],
+            "editions": [1999],
+            "price": 15
+          }
+        ]
+      },
+      {
+        "code": 2,
+        "name": "Suspense"
+      },
+      {
+        "code": 3,
+        "name": "Comedy",
+        "books" : [
+          {
+            "title": "Good Omens",
+            "lang": "English",
+            "authors": ["Neil Gaiman", "Terry Pratchett"],
+            "editions": [2006],
+            "price": 13
+          },
+          {
+            "title": "The Colour of Magic",
+            "lang": "English",
+            "authors": ["Terry Pratchett"],
+            "editions": [1983],
+            "price": 12
+          },
+          {
+            "title": "The Light Fantastic",
+            "lang": "English",
+            "authors": ["Terry Pratchett"],
+            "editions": [1986],
+            "price": 14
+          },
+          {
+            "title": "A Book with No Language",
+            "lang": "",
+            "authors": ["Joe Bloggs"],
+            "editions": [2023],
+            "price": 20
+          }
+        ]
+      },
+      {
+        "code": 5,
+        "name": "Discount books",
+        "books" : [
+          {
+            "title": "Book 1",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 1
+          },
+          {
+            "title": "Book 2",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 2
+          },
+          {
+            "title": "Book 3",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 3
+          },
+          {
+            "title": "Book 4",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 4
+          },
+          {
+            "title": "Book 5",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 5
+          },
+          {
+            "title": "Book 6",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 6
+          },
+          {
+            "title": "Book 7",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 7
+          },
+          {
+            "title": "Book 8",
+            "lang": "blahh",
+            "authors": [],
+            "editions": [],
+            "price": 8
+          },
+          {
+            "title": "Book 9",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 9
+          },
+          {
+            "title": "Book 10",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 10
+          },
+          {
+            "title": "Book 11",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 10
+          }
+        ]
+      },
+      {
+        "code": 6,
+        "name": "Random books",
+        "books": [
+          {
+            "title": "Book 1",
+            "lang": "blah",
+            "authors": [],
+            "editions": [],
+            "price": 1
+          }
+        ]
+      },
+      {
+        "code": 7
+      }
+    ]
+  }
+}