Servicebus : Added APIs to 2018-01-01-preview API version (Azure#11743)

* Added APIs to 2018-01-01-preview API version

* added missing examples

* added missign examples

* update - removed unref examples

* update

* prettier check

* update ptettier check all

* Avocado fix

* fix for ApiDocPreview

* prettier check fix

* Revert "prettier check fix"

This reverts commit fcde91b.

* Revert "fix for ApiDocPreview"

This reverts commit 9789255.

* schema fix

* prettier fix

* reverting all new changes

* fix

* update azureresourceschema

specification/servicebus/resource-manager/Microsoft.ServiceBus/preview/2018-01-01-preview/CheckNameAvailability.json

@@ -0,0 +1,132 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "ServiceBusManagementClient",
+    "description": "Azure Service Bus client",
+    "version": "2018-01-01-preview"
+  },
+  "host": "management.azure.com",
+  "schemes": [
+    "https"
+  ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "security": [
+    {
+      "azure_auth": [
+        "user_impersonation"
+      ]
+    }
+  ],
+  "securityDefinitions": {
+    "azure_auth": {
+      "type": "oauth2",
+      "authorizationUrl": "https://login.microsoftonline.com/common/oauth2/authorize",
+      "flow": "implicit",
+      "description": "Azure Active Directory OAuth2 Flow",
+      "scopes": {
+        "user_impersonation": "impersonate your user account"
+      }
+    }
+  },
+  "paths": {
+    "/subscriptions/{subscriptionId}/providers/Microsoft.ServiceBus/CheckNameAvailability": {
+      "post": {
+        "tags": [
+          "Namespaces"
+        ],
+        "operationId": "Namespaces_CheckNameAvailability",
+        "x-ms-examples": {
+          "NameSpaceCheckNameAvailability": {
+            "$ref": "./examples/NameSpaces/SBNameSpaceCheckNameAvailability.json"
+          }
+        },
+        "description": "Check the give namespace name availability.",
+        "parameters": [
+          {
+            "$ref": "../../../common/v1/definitions.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../common/v1/definitions.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/CheckNameAvailability"
+            },
+            "description": "Parameters to check availability of the given namespace name"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "check availability returned successfully.",
+            "schema": {
+              "$ref": "#/definitions/CheckNameAvailabilityResult"
+            }
+          },
+          "default": {
+            "description": "ServiceBus error response describing why the operation failed.",
+            "schema": {
+              "$ref": "../../../common/v1/definitions.json#/definitions/ErrorResponse"
+            }
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "CheckNameAvailability": {
+      "properties": {
+        "name": {
+          "type": "string",
+          "description": "The Name to check the namespace name availability and The namespace name can contain only letters, numbers, and hyphens. The namespace must start with a letter, and it must end with a letter or number."
+        }
+      },
+      "required": [
+        "name"
+      ],
+      "description": "Description of a Check Name availability request properties."
+    },
+    "CheckNameAvailabilityResult": {
+      "properties": {
+        "message": {
+          "readOnly": true,
+          "type": "string",
+          "description": "The detailed info regarding the reason associated with the namespace."
+        },
+        "nameAvailable": {
+          "type": "boolean",
+          "description": "Value indicating namespace is availability, true if the namespace is available; otherwise, false."
+        },
+        "reason": {
+          "$ref": "#/definitions/UnavailableReason",
+          "description": "The reason for unavailability of a namespace."
+        }
+      },
+      "description": "Description of a Check Name availability request properties."
+    },
+    "UnavailableReason": {
+      "type": "string",
+      "enum": [
+        "None",
+        "InvalidName",
+        "SubscriptionIsDisabled",
+        "NameInUse",
+        "NameInLockdown",
+        "TooManyNamespaceInCurrentSubscription"
+      ],
+      "x-ms-enum": {
+        "name": "UnavailableReason",
+        "modelAsString": false
+      },
+      "description": "Specifies the reason for the unavailability of the service."
+    }
+  },
+  "parameters": {}
+}