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Diffstat (limited to 'vid-ext-services-simulator/README.txt')
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diff --git a/vid-ext-services-simulator/README.txt b/vid-ext-services-simulator/README.txt new file mode 100644 index 00000000..71a4e351 --- /dev/null +++ b/vid-ext-services-simulator/README.txt @@ -0,0 +1,436 @@ +VID Simulator +************************************************************************************ + + +************************************************************************************ +Motivation: +************************************************************************************ +Allow intuitive and extensible framework for mocking REST calls towards VID external peers, +both for dev and testing purposes. + + + +************************************************************************************ +Technologies: +************************************************************************************ +Spring MVC +MockServer (Apache License 2.0) +http://www.mock-server.com + + + +************************************************************************************ +High-level description: +************************************************************************************ + +The Simulator uses MockServer instance running "under the hood" listening to its own HTTP port. +the Simulator allows to register the expected request and response to the MockServer instance +with an exposed REST call (see details below), and all other requests are automatically redirected to MockServer. +If a request was properly registered, the MockServer will reply with an expected response, which will be in turn +returned by the Simulator to the caller. + +The Simulator supports both dynamic and preset (static) registration, looking for JSON files in correct registration format and +registrating them on startup - see details below under "Preset registration" + +Note that the behaviour is generic, and no additional code is expected to be added when there are new +MSO/AAI/any other component APIs to be mocked. They will just need to be properly registered using the existing API. + + +Simulator can be used in both test and dev modes. You can change the server root of any of VID external REST peers +to the one of the simulator (see details in "Usage"), and either register the expected request/response dynamically or preset it +to be loaded during startup. That's it - you're ready to use the simulator either in dev mode, or in test mode by running integration tests vs VID. + + +*********************************************************************************** +Simulator configuration: +************************************************************************************ + +Under src/main/resources/: + +1) simulator.properties - currently allows to configure the connection details of MockServer, preset registration mode, and other simulator-related props. + +2) mockserver.properties - TBD (MockServer logging, SSL etc.) + + +************************************************************************************ +Preset registration: +************************************************************************************ + +If enabled in the properties, the Simulator will also run preset registration, looking for JSON files in correct registration format and +registrating them on startup. + +The files must be placed under src/main/resources/preset_registration. + +If preset registration is enabled, the simulator will run the scheduler "schedulerDetails" API registration, and any other JSON file which it will find under the folder. + + +get_scheduler_details_short.json: + +{ + "simulatorRequest": { + "method": "GET", + "path": "/scheduler/v1/ChangeManagement/schedules/scheduleDetails" + } , + "simulatorResponse": { + "responseCode": 200, + "body": "[{\"vnfName\":\"ZRDM1MMSC04c53a\",\"status\":\"Pending Schedule\",\"groupId\":\"\",\"policyId\":\"SNIRO.Config_MS_Demo_TimeLimitAndVerticalTopology_zone\",\"scheduleRequest\":{\"id\":1,\"createDateTime\":\"2017-09-06T13:29:43Z\",\"optimizerDateTime\":\"2017-09-06T13:29:55Z\",\"optimizerMessage\":\"\\n{\\n \\\"requestError\\\": {\\n \\\"serviceException\\\": {\\n \\\"messageId\\\": \\\"SVC0001\\\",\\n \\\"requestId\\\": \\\"CM-c098bd33-a51e-461b-8fd2-6c4d2666c706\\\",\\n \\\"text\\\": \\\"sniro.operation.exceptions.PolicyNotFoundException: Cannot fetch policy SNIRO.Config_MS_Demo_TimeLimitAndVerticalTopology_zone: : HTTPSConnectionPool(host='policypdp-conexus-ist.ecomp.cci.att.com', port=8081): Max retries exceeded with url: \/pdp\/getConfig (Caused by ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f0ecc00d6d8>, 'Connection to policypdp-conexus-ist.ecomp.cci.att.com timed out. (connect timeout=6.5)'))\\\",\\n \\\"variables\\\": [\\\"severity\\\", 400]\\n }\\n }\\n}\",\"optimizerStatus\":\"HTTP Status: 400\",\"optimizerAttemptsToSchedule\":1,\"optimizerTransactionId\":\"08fb4c32-ecb4-4d72-b618-a6156d3fc53a\",\"scheduleId\":\"08fb4c32-ecb4-4d72-b618-a6156d3fc53a\",\"scheduleName\":\"08fb4c32-ecb4-4d72-b618-a6156d3fc53a\",\"status\":\"Schedule Failed\",\"userId\":\"su7376\",\"domain\":\"ChangeManagement\",\"domainData\":[{\"id\":1,\"name\":\"CallbackData\",\"value\":\"{\\\"requestDetails\\\": [{\\\"vnfInstanceId\\\": \\\"Test\\\", \\\"relatedInstanceList\\\": [{\\\"relatedInstance\\\": {\\\"instanceId\\\": \\\"{serviceInstanceId}\\\", \\\"modelInfo\\\": {\\\"modelName\\\": \\\"{parent service model name}\\\", \\\"modelVersion\\\": \\\"2.0\\\", \\\"modelType\\\": \\\"service\\\", \\\"modelInvariantId\\\": \\\"ff3514e3-5a33-55df-13ab-12abad84e7ff\\\", \\\"modelCustomizationName\\\": \\\"vSAMP12 1\\\", \\\"modelVersionId\\\": \\\"9ebb1521-2e74-47a4-aac7-e71a79f73a79\\\", \\\"modelCustomizationId\\\": \\\"c539433a-84a6-4082-a12e-5c9b00c3b960\\\"}}}], \\\"requestParameters\\\": {\\\"usePreload\\\": \\\"True\\\"}, \\\"requestInfo\\\": {\\\"source\\\": \\\"VID\\\", \\\"requestorId\\\": \\\"az2016\\\", \\\"suppressRollback\\\": \\\"False\\\"}, \\\"vnfName\\\": \\\"Name\\\", \\\"modelInfo\\\": {\\\"modelName\\\": \\\"vSAMP12\\\", \\\"modelVersion\\\": \\\"2.0\\\", \\\"modelType\\\": \\\"vnf\\\", \\\"modelInvariantId\\\": \\\"ff5256d1-5a33-55df-13ab-12abad84e7ff\\\", \\\"modelCustomizationName\\\": \\\"vSAMP12 1\\\", \\\"modelVersionId\\\": \\\"254583ad-b38c-498b-bdbd-b8de5e07541b\\\", \\\"modelCustomizationId\\\": \\\"c539433a-84a6-4082-a12e-5c9b00c3b960\\\"}, \\\"cloudConfiguration\\\": {\\\"lcpCloudRegionId\\\": \\\"mdt1\\\", \\\"tenantId\\\": \\\"88a6ca3ee0394ade9403f075db23167e\\\"}}]}\"},{\"id\":2,\"name\":\"WorkflowName\",\"value\":\"Build Software Upgrade for vNFs\"},{\"id\":3,\"name\":\"CallbackUrl\",\"value\":\"http:\/\/127.0.0.1:8989\/scheduler\/v1\/loopbacktest\/vid\"}],\"scheduleApprovals\":[]},\"schedulesId\":0}]" + } +} + + +************************************************************************************ +Dynamic registration: +************************************************************************************* +If you need dynamic registration, register API for dynamic registration: + +POST {protocol}://{Tomcat host}:{Tomcat port}/vidSimulator/registerToVidSimulator + +To unregister and clear *all* expectations, use DELETE action: + +DELETE {protocol}://{Tomcat host}:{Tomcat port}/vidSimulator/registerToVidSimulator + + +*********************************************************************************** +Registration body JSON specification (see and copy/paste examples below): +*************************************************************************************** + + + "simulatorRequest" - request wrapper. + + Note that from the below fields, it's mandatory to populate at least one. + No field is mandatory by itself. + + "id" - String, will be expected as a value in an X-header with a key "x-simulator-id" + "method" - String, HTTP method of the request. + "path" - String, relative path of the request, MUST be WITH leading slash and WITHOUT trailing slash. + "queryParams" - Map<String, List<String>>, query params of key-->list of values. + "body" - String, body of the request in case of POST/PUT. + Note that JSON String should be properly escaped. + + "simulatorResponse" - response wrapper. + + Note that from the below fields, it's mandatory to populate at least "responseCode". + + "responseCode" - integer, HTTP response code. + "responseHeaders" - Dictionary Object with HTTP headers and values. + "body" - String, body of the response. + Note that JSON String should be properly escaped. + "file" - String, a filename of the file sitting in "vid-ext-services-simulator\src\main\resources\download_files" + Used for simulating file download requests. + + "misc" - optional configurations. + "numberOfTimes" - Integer. Limit this expectation to fire only a + given amount of times. Values like -1 or less are + treated as "unlimited". Default is unlimited. + "replace" - Boolean. If there is already a registered expectation with + same simulatorRequest, remove the old registered expectation. + If set to 'False' -- the result will be appended to fire + after the old registered expectation(s) will fulfill their + numberOfTimes. Default is 'True'. + +************************************************************************************ +Usage: +************************************************************************************ + +1) In system.properties, change the API you want to mock - set server root to be +{protocol}://{Tomcat host}:{Tomcat port}/vidSimulator (for example http://localhost:7080/vidSimulator) + +Example of mocking the scheduler: + +#scheduler.server.url=http://mtanjv9sdlg10.aic.cip.att.com:8989/scheduler +scheduler.server.url=http://localhost:7080/vidSimulator/scheduler + + +2) Check the simulator.properties file under /resources to verify the desired properties of the inner MockServer instance. + * Default MockServer URI is http://localhost:1080 + +3) Build VID and VID Simulator WARs + +4) Deploy the Simulator WAR under Tomcat, either same as VID or another instance. + * Application context path of the Simulator is /vidSimulator + + + +******************************************************************************** +Some more examples of usage with demo requests/responses: +******************************************************************************** + + +******************************************************************************** +1) Getting a response by "id" (method and path are insignificant in this case) + +******************************************************************************** +Registration: +----------------- + + Request: + + POST /vidSimulator/registerToVidSimulator HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + Cache-Control: no-cache + { + "simulatorRequest": { + "id": "pavelId" + } , + "simulatorResponse": { + "responseCode": 200, + "responseHeaders": { + "Content-Type": "application/json" + }, + "body": "{\"value1\": \"kuku\",\"value2\": \"shmuku\"}" + } + } + + + Response: + + 200 OK + Registration successful! + + +Running: +-------- + + + Request: + + GET /vidSimulator/scheduler/testApi HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + X-Simulator-Id: pavelId + Cache-Control: no-cache + + Response: + + 200 OK + { + "value1": "kuku", + "value2": "shmuku" + } + + +******************************************************************************** +2) Getting a response by "id", "method" and "path" - sunny and rainy flows +******************************************************************************** +Registration: +------------- + + Request: + + POST /vidSimulator/registerToVidSimulator HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + Cache-Control: no-cache + + { + "simulatorRequest": { + "id": "pavelIdGet", + "method": "GET", + "path": "/scheduler/testApiGet" + } , + "simulatorResponse": { + "responseCode": 200, + "responseHeaders": { + "Content-Type": "application/json" + }, + "body": "{\"value1\": \"kukuResponse\",\"value2\": \"shmukuResponse\"}" + } + } + + + Response: + + 200 OK + Registration successful! + + +Running - sunny flow: +--------------------- + + + Request: + + GET /vidSimulator/scheduler/testApiGet HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + X-Simulator-Id: pavelId + Cache-Control: no-cache + + Response: + + 200 OK + { + "value1": "kukuResponse", + "value2": "shmukuResponse" + } + + +Running POST - will return 404 since GET method was explicitly registered: +-------------------------------------------------------------------------- + + Request: + + POST /vidSimulator/scheduler/testApiGet HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + X-Simulator-Id: pavelIdGet + Cache-Control: no-cache + { + "id": "pavelId", + "responseCode": 200, + "body": { + "value1": "kuku", + "value2": "shmuku" + } + } + + Response: + + 404 Not Found + + +******************************************************************************** +3) Getting an error HTTP response (based on "id" in this example) +******************************************************************************** + +Registration: +------------- + + Request: + + POST /vidSimulator/registerToVidSimulator HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + Cache-Control: no-cache + + { + "simulatorRequest": { + "id": "pavelIdError" + } , + "simulatorResponse": { + "responseCode": 417 + } + } + + Response: + + 200 OK + Registration successful! + +Running: +----------- + + Request: + + GET /vidSimulator/scheduler/anyApi HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + X-Simulator-Id: pavelIdError + Cache-Control: no-cache + + + Response: + + 417 Expectation Failed. + + +******************************************************************************** +4) Query params +******************************************************************************** + +Registration: +------------- + + Request: + + POST /vidSimulator/registerToVidSimulator HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + Cache-Control: no-cache + Postman-Token: 0bbfeb0f-b8b6-368e-6fbd-38a90fc544b4 + + { + "simulatorRequest": { + "method": "GET", + "path": "/cloudResourcesRequests/v1", + "queryParams": { + "requestId" : ["3212b08c-0dcd-4d20-8c84-51e4f325c14a", "3212b08c-0dcd-4d20-8c84-51e4f325c14b"] + } + } , + "simulatorResponse": { + "responseCode": 200, + "body": "{\"requestId1\": \"3212b08c-0dcd-4d20-8c84-51e4f325c14a\",\"requestId2\": \"3212b08c-0dcd-4d20-8c84-51e4f325c14b\"}" + } + } + + Response: + + 200 OK + Registration successful! + +Running: +----------- + + Request: + + GET /vidSimulator/cloudResourcesRequests/v1?requestId=3212b08c-0dcd-4d20-8c84-51e4f325c14b&requestId=3212b08c-0dcd-4d20-8c84-51e4f325c14a HTTP/1.1 + Host: 127.0.0.1:7080 + Accept: application/json + Cache-Control: no-cache + Postman-Token: 9ef5d9d2-77f4-7631-7e9f-4404df10acb6 + + + Response: + + 200 OK + {"requestId1": "3212b08c-0dcd-4d20-8c84-51e4f325c14a","requestId2": "3212b08c-0dcd-4d20-8c84-51e4f325c14b"} + + + +******************************************************************************** +5) File Download +******************************************************************************** + +Registration: +------------- + + Request: + + POST /vidSimulator/registerToVidSimulator HTTP/1.1 + Host: localhost:7080 + Content-Type: application/json + Cache-Control: no-cache + Postman-Token: 0bbfeb0f-b8b6-368e-6fbd-38a90fc544b4 + + { + "simulatorRequest": { + "method": "GET", + "path": "/vidSimulator/getSomeFile" + } , + "simulatorResponse": { + "responseCode": 200, + "file": "csar3933948645405128424.zip" + } + } + + Response: + + 200 OK + Registration successful! + +Running: +----------- + + Request: + + GET /vidSimulator/getSomeFile HTTP/1.1 + Host: 127.0.0.1:7080 + Cache-Control: no-cache + Postman-Token: 9ef5d9d2-77f4-7631-7e9f-4404df10acb6 + + + Response: + + 200 OK + File for download. |