Added DataSystem schema validation when the DataSystem resource is present

build.gradle

@@ -39,6 +39,9 @@ dependencies {
   compile 'io.cucumber:cucumber-junit:5.4.0'
 
   compile 'net.masterthought:cucumber-reporting:5.1.1'
+
+  compile 'com.networknt:json-schema-validator:1.0.35'
+
 }
 
 configurations {

src/main/java/org/reso/certification/features/web-api/web-api-server-1.0.2.feature

@@ -454,7 +454,7 @@ Feature: Web API Server 1.0.2 Certification
     And the response is valid JSON
     And the response has results
 
-  @REQ-WA103-QM3 @platinum @2.4.6 @queryability-endorsement
+  @REQ-WA103-QM3 @platinum @2.4.6 @queryability-endorsement @deprecated
   Scenario: REQ-WA103-QM3 - Support Literals: $any
     When a GET request is made to the resolved Url in "REQ-WA103-QM3"
     Then the server responds with a status code of 200

src/main/java/org/reso/certification/stepdefs/WebAPIServer_1_0_2.java

@@ -1,8 +1,12 @@
 package org.reso.certification.stepdefs;
 
+import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.fasterxml.jackson.databind.node.POJONode;
+import com.networknt.schema.JsonSchema;
+import com.networknt.schema.JsonSchemaFactory;
+import com.networknt.schema.ValidationMessage;
 import io.cucumber.java8.En;
 import org.apache.http.HttpStatus;
 import org.apache.logging.log4j.LogManager;
@@ -31,6 +35,7 @@ import org.reso.models.Settings;
 
 import java.io.ByteArrayInputStream;
 import java.io.File;
+import java.io.InputStream;
 import java.net.URI;
 import java.sql.Time;
 import java.sql.Timestamp;
@@ -237,12 +242,30 @@ public class WebAPIServer_1_0_2 implements En {
     });
 
     /*
-     * REQ-WA103-END2
+     * REQ-WA103-END2 - validate DataSystem endpoint, if present.
      */
     And("^the results match the expected DataSystem JSON schema$", () -> {
-      //TODO - need to add JSON Schema for DataSystem
-    });
+      if (responseCode.get() == HttpStatus.SC_OK && responseData.get() != null) {
+        try {
+          JsonSchemaFactory factory = JsonSchemaFactory.getInstance();
+          InputStream is = Thread.currentThread().getContextClassLoader()
+              .getResourceAsStream("datasystem.schema.4.json");
+          JsonSchema schema = factory.getSchema(is);
 
+          ObjectMapper mapper = new ObjectMapper();
+          JsonNode node = mapper.readTree(responseData.get());
+
+          if (node.findPath(JSON_VALUE_PATH).size() > 0) {
+            Set<ValidationMessage> errors = schema.validate(node);
+            assertEquals("ERROR: data system response does not match the RESO specification. See: https://github.com/RESOStandards/web-api-commander/tree/master/src/main/resources/datasystem.schema.4.json",
+                0, errors.size());
+            LOG.info("DataSystem response matches reference schema!");
+          }
+        } catch (Exception ex) {
+          fail(ex.getMessage());
+        }
+      }
+    });
 
     /*
      * Edm Metadata Validator

src/main/resources/datasystem.schema.4.json

@@ -0,0 +1,55 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "title": "The Root Schema",
+  "description": "The root schema comprises the entire JSON document.",
+  "required": [
+    "@odata.context",
+    "value"
+  ],
+  "properties": {
+    "@odata.context": {
+      "type": "string",
+      "title": "The @odata.context Schema",
+      "description": "The @odata.context variable is required for odata.metadata=minimal and above, and tells the user where the results came from.",
+      "default": ""
+    },
+    "value": {
+      "type": "array",
+      "title": "OData value array",
+      "description": "OData responses return their values in an array.",
+      "default": [],
+      "items": {
+        "type": "object",
+        "title": "Data System Items",
+        "description": "Each item represents a potential data system configuration.",
+        "default": {},
+        "required": [
+          "kind",
+          "name",
+          "url"
+        ],
+        "properties": {
+          "kind": {
+            "type": "string",
+            "title": "The Kind Schema",
+            "description": "The kind of object a consumer of the service can expect.",
+            "default": ""
+          },
+          "name": {
+            "type": "string",
+            "title": "The Name Schema",
+            "description": "The name of the resource that can be retrieved from the data system.",
+            "default": ""
+          },
+          "url": {
+            "type": "string",
+            "title": "The Url Schema",
+            "description": "The URL for this resource, which may either be absolute or relative to the service root.",
+            "default": ""
+          }
+        }
+      }
+    }
+  }
+}