diff options
author | 2018-08-21 13:29:02 +0200 | |
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committer | 2018-08-21 14:35:17 +0200 | |
commit | 9c2c7e8ce83b8dfda0b4c1fbd875c9c34caf51eb (patch) | |
tree | 831dd1796dd8b05ed7c2681d5fd3c19e40ec3fe4 /vid-ext-services-simulator/src/main/java/org/onap/simulator/controller | |
parent | 6447784fdd770e8a2b4ef2c52ba206d35c0fd325 (diff) |
Rename vid-simulator packages
- Rename from openecomp to onap and update imports
- Fix small bug in README.txt
Change-Id: I099b010adf7ed6dd708c9feae0340be462b1d195
Issue-ID: VID-205
Signed-off-by: Joanna Jeremicz <joanna.jeremicz@nokia.com>
Diffstat (limited to 'vid-ext-services-simulator/src/main/java/org/onap/simulator/controller')
-rw-r--r-- | vid-ext-services-simulator/src/main/java/org/onap/simulator/controller/SimulatorController.java | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/vid-ext-services-simulator/src/main/java/org/onap/simulator/controller/SimulatorController.java b/vid-ext-services-simulator/src/main/java/org/onap/simulator/controller/SimulatorController.java new file mode 100644 index 000000000..b67c98ee9 --- /dev/null +++ b/vid-ext-services-simulator/src/main/java/org/onap/simulator/controller/SimulatorController.java @@ -0,0 +1,337 @@ +package org.onap.simulator.controller; + +import com.fasterxml.jackson.databind.DeserializationFeature; +import com.fasterxml.jackson.databind.ObjectMapper; +import org.mockserver.integration.ClientAndServer; +import org.mockserver.matchers.Times; +import org.mockserver.model.HttpRequest; +import org.mockserver.model.HttpResponse; +import static org.mockserver.model.HttpRequest.request; +import static org.mockserver.model.HttpResponse.response; + +import org.mockserver.model.JsonBody; +import org.onap.simulator.errorHandling.VidSimulatorException; +import org.onap.simulator.model.SimulatorRequestResponseExpectation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.core.io.ClassPathResource; +import org.springframework.core.io.Resource; +import org.springframework.core.io.support.PathMatchingResourcePatternResolver; +import org.springframework.core.io.support.PropertiesLoaderUtils; +import org.springframework.core.io.support.ResourcePatternResolver; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.stereotype.Component; +import org.springframework.web.bind.annotation.*; +import org.springframework.web.servlet.HandlerMapping; +import org.springframework.web.servlet.View; + +import javax.annotation.PostConstruct; +import javax.annotation.PreDestroy; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.io.*; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.*; +import java.io.UnsupportedEncodingException; +import java.net.URLEncoder; +import java.util.stream.Collectors; + +import static org.mockserver.integration.ClientAndServer.startClientAndServer; +import static org.mockserver.matchers.Times.exactly; + +@RestController +@Component +public class SimulatorController { + + private static final Times DEFAULT_NUMBER_OF_TIMES = Times.unlimited(); + private ClientAndServer mockServer; + private String mockServerProtocol; + private String mockServerHost; + private Integer mockServerPort; + private Boolean enablePresetRegistration; + private volatile boolean isInitialized = false; + + + Logger logger = LoggerFactory.getLogger(SimulatorController.class); + + @PostConstruct + public void init(){ + logger.info("Starting VID Simulator...."); + setProperties(); + mockServer = startClientAndServer(mockServerPort); + presetRegister(); + isInitialized = true; + logger.info("VID Simulator started successfully"); + } + + @PreDestroy + public void tearDown(){ + logger.info("Stopping VID Simulator...."); + isInitialized = false; + mockServer.stop(); + } + + + private void presetRegister() { + //Checking if set + if (enablePresetRegistration == null || !enablePresetRegistration){ + logger.info("Preset registration property is false or not set - skipping preset registration..."); + return; + } + ClassLoader cl = this.getClass().getClassLoader(); + ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(cl); + List<Path> resources = new ArrayList<>(); + try { + File presetDir = resolver.getResource("/preset_registration/").getFile(); + if (presetDir.exists() && presetDir.isDirectory()) { + resources = Files.walk(Paths.get(presetDir.getPath())) + .filter(p -> p.toString().endsWith(".json")) + .collect(Collectors.toList()); + } else { + logger.error("preset_registration directory is not exists"); + } + } catch (IOException e) { + logger.error("Error performing preset registration, error: ", e); + return; + } + logger.info("Starting preset registrations, number of requests: {}", resources.size()); + for (Path resource: resources){ + String content; + try { + content = new Scanner(resource).useDelimiter("\\Z").next(); + } catch (IOException e){ + logger.error("Error reading preset registration file {}, skipping to next one. Error: ", resource.getFileName(), e); + continue; + } + //register the preset request + try { + register(content); + } catch (VidSimulatorException e) { + logger.error("Error proceeding preset registration file {},skipping to next one. Check if the JSON is in correct format. Error: ", resource.getFileName(), e); + } + } + } + + + + private void setProperties() { + Resource resource = new ClassPathResource("simulator.properties"); + Properties props = new Properties(); + try { + props = PropertiesLoaderUtils.loadProperties(resource); + } catch (IOException e) { + logger.error("Error loading simulator properties, error: ", e); + return; + } + logger.info("Simulator properties are {}", props); + mockServerProtocol = (String)props.get("simulator.mockserver.protocol"); + mockServerHost = (String)props.get("simulator.mockserver.host"); + mockServerPort = Integer.parseInt((String)props.get("simulator.mockserver.port")); + enablePresetRegistration = Boolean.parseBoolean((String)props.get("simulator.enablePresetRegistration")); + } + + @RequestMapping(value = {"/registerToVidSimulator"}, method = RequestMethod.POST) + public @ResponseBody + ResponseEntity registerRequest(HttpServletRequest request, @RequestBody String expectation) { + try { + register(expectation); + } catch (VidSimulatorException e) { + return new ResponseEntity<>("Registration failure! Error: "+e.getMessage(),HttpStatus.BAD_REQUEST); + } + return new ResponseEntity<>("Registration successful!",HttpStatus.OK); + } + + @RequestMapping(value = {"/echo"}, method = RequestMethod.GET) + ResponseEntity echo(HttpServletRequest request) { + return isInitialized ? new ResponseEntity<>("",HttpStatus.OK) : new ResponseEntity<>("",HttpStatus.SERVICE_UNAVAILABLE); + } + +// @RequestMapping(value = {"/registerToVidSimulator"}, method = RequestMethod.GET) +// public ResponseEntity<String> getAllRegisteredRequests() throws JsonProcessingException { +// final Expectation[] expectations = mockServer.retrieveExistingExpectations(null); +// return new ResponseEntity<>(new ObjectMapper() +// .configure(SerializationFeature.INDENT_OUTPUT, true) +// .writeValueAsString(expectations), HttpStatus.OK); +// } + + @RequestMapping(value = {"/registerToVidSimulator"}, method = RequestMethod.DELETE) + @ResponseStatus(value = HttpStatus.OK) + public void wipeOutAllExpectations() { + mockServer.reset(); + } + + private void register(String expectation) throws VidSimulatorException{ + ObjectMapper mapper = new ObjectMapper() + .configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true); + + SimulatorRequestResponseExpectation[] expectationModels; + try { + expectationModels = mapper.readValue(expectation, SimulatorRequestResponseExpectation[].class); + } catch (IOException e) { + logger.error("Couldn't deserialize register expectation {}, error:", expectation, e); + throw new VidSimulatorException(e.getMessage()); + } + + for (SimulatorRequestResponseExpectation expectationModel : expectationModels) { + logger.info("Proceeding registration request: {}", expectationModel); + register(expectationModel); + } + } + + + @RequestMapping(value = {"/**"}) + public String redirectToMockServer(HttpServletRequest request, HttpServletResponse response) { + //Currently, the easiest logic is redirecting + + //This is needed to allow POST redirect - see http://www.baeldung.com/spring-redirect-and-forward + request.setAttribute(View.RESPONSE_STATUS_ATTRIBUTE, HttpStatus.TEMPORARY_REDIRECT); + + //Building the redirect URL + String restOfTheUrl = (String) request.getAttribute( + HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE); + + //TODO encode only characters like spaces, not slashes + /* try { + restOfTheUrl = URLEncoder.encode(restOfTheUrl, "UTF-8"); + restOfTheUrl = restOfTheUrl.replaceAll("%2F", "/"); + } catch (UnsupportedEncodingException e) { + e.printStackTrace(); + }*/ + + StringBuilder sb = new StringBuilder(); + sb.append(mockServerProtocol+"://"+mockServerHost+":"+mockServerPort+"/"+restOfTheUrl); + String queryString = request.getQueryString(); + if (queryString != null){ + sb.append("?").append(queryString); + } + String redirectUrl = sb.toString(); + logger.info("Redirecting the request to : {}", redirectUrl); + return ("redirect:"+redirectUrl); + + //This was a try to setup a proxy instead of redirect + //Abandoned this direction when trying to return the original HTTP error code which was registered to mock server, instead of wrapped up HTTP 500. + + /* String restOfTheUrl = "/"+(String) request.getAttribute( + HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE); + URI uri = null; + try { + uri = new URI("http", null, "localhost", 1080, restOfTheUrl, request.getQueryString(), null); + } catch (URISyntaxException e) { + logger.error("Error during proxying request {}, error: ", request.getRequestURI(), e.getMessage()); + return new ResponseEntity(e.getMessage(),HttpStatus.INTERNAL_SERVER_ERROR); + } + RestTemplate restTemplate = new RestTemplate(); + //Preparing the headers + HttpHeaders headers = new HttpHeaders(); + Enumeration<String> headerNames = request.getHeaderNames(); + while (headerNames.hasMoreElements()){ + String headerToSet = headerNames.nextElement(); + headers.set(headerToSet, request.getHeader(headerToSet)); + } + + ResponseEntity<String> responseEntity = + restTemplate.exchange(uri, HttpMethod.resolve(request.getMethod()), new HttpEntity<String>(body, headers), String.class); + + return responseEntity;*/ + } + + private void register(SimulatorRequestResponseExpectation expectationModel) throws VidSimulatorException{ + //Setting request according to what is passed + HttpRequest request = HttpRequest.request(); + String id = expectationModel.getSimulatorRequest().getId(); + if (id != null) { + request.withHeader("x-simulator-id", id); + } + String method = expectationModel.getSimulatorRequest().getMethod(); + if (method != null) { + request.withMethod(method); + } + String path = expectationModel.getSimulatorRequest().getPath(); + if (path != null) { + request.withPath(path); + } + String body = expectationModel.getSimulatorRequest().getBody(); + if (body != null) { + request.withBody(new JsonBody(body)); + } + + //Queryparams + final Map<String, List<String>> queryParams = expectationModel.getSimulatorRequest().getQueryParams(); + if (queryParams != null){ + String[] arr = new String[0]; + queryParams.entrySet().stream().forEach(x -> { + request.withQueryStringParameter(x.getKey(), x.getValue().toArray(arr)); + }); + } + + //Setting response according to what is passed + HttpResponse response = HttpResponse.response(); + Integer responseCode = expectationModel.getSimulatorResponse().getResponseCode(); + if (responseCode != null) { + response.withStatusCode(responseCode); + } else { + logger.error("Invalid registration - response code cannot be empty"); + throw new VidSimulatorException("Invalid registration - response code cannot be empty"); + } + + String respBody = expectationModel.getSimulatorResponse().getBody(); + if (respBody != null) { + response.withBody(respBody); + } + + String file = expectationModel.getSimulatorResponse().getFile(); + if (file != null) { + response.withBody(loadFileString(file)); + } + + Map<String, String> responseHeaders = expectationModel.getSimulatorResponse().getResponseHeaders(); + if (responseHeaders != null) { + responseHeaders.forEach(response::withHeader); + } + + Times numberOfTimes = getExpectationNumberOfTimes(expectationModel); + + if (expectationModel.getMisc().getReplace()) { + logger.info("Unregistering request expectation, if previously set, request: {}", expectationModel.getSimulatorRequest()); + mockServer.clear(request); + } + + mockServer + .when(request, numberOfTimes).respond(response); + } + + + private byte[] loadFileString(String filePath) { + byte[] bytes = null; + try { + File file = new ClassPathResource("download_files/" + filePath).getFile(); + bytes = new byte[(int)file.length()]; + DataInputStream dataInputStream = null; + + dataInputStream = new DataInputStream(new BufferedInputStream(new FileInputStream(file.getPath()))); + dataInputStream.readFully(bytes); + dataInputStream.close(); + } catch (FileNotFoundException e) { + logger.error("File not found for file:" + filePath); + e.printStackTrace(); + } catch (IOException e) { + logger.error("Error reading file:" + filePath); + e.printStackTrace(); + } + + return bytes; + } + private Times getExpectationNumberOfTimes(SimulatorRequestResponseExpectation expectationModel) { + Integer expectationModelNumberOfTimes = expectationModel.getMisc().getNumberOfTimes(); + Times effectiveNumberOfTimes; + if (expectationModelNumberOfTimes == null || expectationModelNumberOfTimes < 0) { + effectiveNumberOfTimes = DEFAULT_NUMBER_OF_TIMES; + } else { + effectiveNumberOfTimes = exactly(expectationModelNumberOfTimes); + } + return effectiveNumberOfTimes; + } +} |