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org.openapitools.codegen.languages.K6ClientCodegen Maven / Gradle / Ivy
/*
* Copyright 2018 OpenAPI-Generator Contributors (https://openapi-generator.tech)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openapitools.codegen.languages;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.Operation;
import io.swagger.v3.oas.models.PathItem;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.info.License;
import io.swagger.v3.oas.models.media.Schema;
import io.swagger.v3.oas.models.parameters.RequestBody;
import io.swagger.v3.oas.models.responses.ApiResponse;
import io.swagger.v3.oas.models.servers.Server;
import org.apache.commons.lang3.StringUtils;
import org.openapitools.codegen.*;
import org.openapitools.codegen.meta.GeneratorMetadata;
import org.openapitools.codegen.meta.Stability;
import org.openapitools.codegen.utils.ModelUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.annotation.Nullable;
import java.io.File;
import java.util.*;
import static org.openapitools.codegen.utils.StringUtils.*;
public class K6ClientCodegen extends DefaultCodegen implements CodegenConfig {
public K6ClientCodegen() {
super();
generatorMetadata = GeneratorMetadata.newBuilder(generatorMetadata)
.stability(Stability.BETA)
.build();
}
static class Parameter {
String key;
Object value;
public Parameter(String key, Object value) {
this.key = key;
this.value = value;
}
@Override
public int hashCode() {
return key.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null || getClass() != obj.getClass())
return false;
Parameter p = (Parameter) obj;
return key.equals(p.key) && value.equals((String) p.value);
}
}
static class HTTPBody {
List parameters;
public HTTPBody(List parameters) {
this.parameters = parameters;
}
}
static class HTTPParameters {
@Nullable
String auth;
@Nullable
List cookies;
@Nullable
List headers;
@Nullable
List jar;
@Nullable
Integer redirects;
@Nullable
List tags;
@Nullable
Integer timeout;
@Nullable
String compression;
@Nullable
String responseType;
public HTTPParameters(@Nullable String auth, @Nullable List cookies,
@Nullable List headers, @Nullable List jar, @Nullable Integer redirects,
@Nullable List tags, @Nullable Integer timeout, @Nullable String compression,
@Nullable String responseType) {
this.auth = auth;
this.cookies = cookies;
this.headers = headers;
this.jar = jar;
this.redirects = redirects;
this.tags = tags;
this.timeout = timeout;
this.compression = compression;
this.responseType = responseType;
}
}
static class k6Check {
Integer status;
String description;
public k6Check(Integer status, String description) {
this.status = status;
this.description = description;
}
}
static class HTTPRequest {
String method;
String path;
@Nullable
List query;
@Nullable
HTTPBody body;
@Nullable
HTTPParameters params;
@Nullable
List k6Checks;
public HTTPRequest(String method, String path, @Nullable List query, @Nullable HTTPBody body,
@Nullable HTTPParameters params, @Nullable List k6Checks) {
// NOTE: https://k6.io/docs/javascript-api/k6-http/del-url-body-params
this.method = method.equals("delete") ? "del" : method;
this.path = path;
this.query = query;
this.body = body;
this.params = params;
this.k6Checks = k6Checks;
}
}
static public class HTTPRequestGroup {
String groupName;
Set variables; // query and path parameters
List requests;
public HTTPRequestGroup(String groupName, Set variables, List requests) {
this.groupName = groupName;
this.variables = variables;
this.requests = requests;
}
}
private static final Logger LOGGER = LoggerFactory.getLogger(JavascriptClientCodegen.class);
public static final String PROJECT_NAME = "projectName";
public static final String MODULE_NAME = "moduleName";
public static final String PROJECT_DESCRIPTION = "projectDescription";
public static final String PROJECT_VERSION = "projectVersion";
public static final String BASE_URL = "baseURL";
public static final String PRESERVE_LEADING_PARAM_CHAR = "preserveLeadingParamChar";
static final Collection INVOKER_PKG_SUPPORTING_FILES = Arrays.asList("script.mustache", "README.mustache");
static final String[][] JAVASCRIPT_SUPPORTING_FILES = new String[][]{
new String[]{"script.mustache", "script.js"}, new String[]{"README.mustache", "README.md"}};
protected String projectName;
protected String moduleName;
protected String projectDescription;
protected String projectVersion;
protected String licenseName;
protected String invokerPackage;
protected String sourceFolder = "";
private String modelPropertyNaming = "camelCase";
protected boolean preserveLeadingParamChar = false;
@Override
public CodegenType getTag() {
return CodegenType.CLIENT;
}
@Override
public String getName() {
return "k6";
}
@Override
public String getHelp() {
return "Generates a k6 script (beta).";
}
@Override
public void processOpts() {
embeddedTemplateDir = templateDir = "k6";
super.processOpts();
if (additionalProperties.containsKey(PROJECT_NAME)) {
setProjectName(((String) additionalProperties.get(PROJECT_NAME)));
}
if (additionalProperties.containsKey(MODULE_NAME)) {
setModuleName(((String) additionalProperties.get(MODULE_NAME)));
}
if (additionalProperties.containsKey(PROJECT_DESCRIPTION)) {
setProjectDescription(((String) additionalProperties.get(PROJECT_DESCRIPTION)));
}
if (additionalProperties.containsKey(PROJECT_VERSION)) {
setProjectVersion(((String) additionalProperties.get(PROJECT_VERSION)));
}
if (additionalProperties.containsKey(CodegenConstants.LICENSE_NAME)) {
setLicenseName(((String) additionalProperties.get(CodegenConstants.LICENSE_NAME)));
}
if (additionalProperties.containsKey(CodegenConstants.SOURCE_FOLDER)) {
setSourceFolder((String) additionalProperties.get(CodegenConstants.SOURCE_FOLDER));
}
if (additionalProperties.containsKey(CodegenConstants.INVOKER_PACKAGE)) {
setInvokerPackage((String) additionalProperties.get(CodegenConstants.INVOKER_PACKAGE));
}
if (additionalProperties.containsKey(CodegenConstants.MODEL_PROPERTY_NAMING)) {
setModelPropertyNaming((String) additionalProperties.get(CodegenConstants.MODEL_PROPERTY_NAMING));
}
boolean preserveLeadingParamChar = convertPropertyToBooleanAndWriteBack(PRESERVE_LEADING_PARAM_CHAR);
this.setPreserveLeadingParamChar(preserveLeadingParamChar);
}
@Override
public void preprocessOpenAPI(OpenAPI openAPI) {
super.preprocessOpenAPI(openAPI);
if (openAPI.getInfo() != null) {
Info info = openAPI.getInfo();
if (StringUtils.isBlank(projectName) && info.getTitle() != null) {
// when projectName is not specified, generate it from info.title
projectName = sanitizeName(dashize(info.getTitle()));
}
if (StringUtils.isBlank(projectVersion)) {
// when projectVersion is not specified, use info.version
projectVersion = escapeUnsafeCharacters(escapeQuotationMark(info.getVersion()));
}
if (projectDescription == null) {
// when projectDescription is not specified, use info.description
projectDescription = sanitizeName(info.getDescription());
}
// when licenceName is not specified, use info.license
if (additionalProperties.get(CodegenConstants.LICENSE_NAME) == null && info.getLicense() != null) {
License license = info.getLicense();
licenseName = license.getName();
}
}
// default values
if (StringUtils.isBlank(projectName)) {
projectName = "swagger-k6-client";
}
if (StringUtils.isBlank(moduleName)) {
moduleName = camelize(underscore(projectName));
}
if (StringUtils.isBlank(projectVersion)) {
projectVersion = "1.0.0";
}
if (projectDescription == null) {
projectDescription = "Client library of " + projectName;
}
if (StringUtils.isBlank(licenseName)) {
licenseName = "Unlicense";
}
additionalProperties.put(PROJECT_NAME, projectName);
additionalProperties.put(MODULE_NAME, moduleName);
additionalProperties.put(PROJECT_DESCRIPTION, escapeText(projectDescription));
additionalProperties.put(PROJECT_VERSION, projectVersion);
additionalProperties.put(CodegenConstants.LICENSE_NAME, licenseName);
additionalProperties.put(CodegenConstants.API_PACKAGE, apiPackage);
additionalProperties.put(CodegenConstants.INVOKER_PACKAGE, invokerPackage);
additionalProperties.put(CodegenConstants.MODEL_PACKAGE, modelPackage);
additionalProperties.put(CodegenConstants.SOURCE_FOLDER, sourceFolder);
String baseURL = openAPI.getServers().get(0).getUrl();
for (Server server : openAPI.getServers()) {
if (server.getUrl().contains("https://")) {
baseURL = server.getUrl();
}
}
additionalProperties.put(BASE_URL, baseURL);
List requestGroups = new ArrayList<>();
Set extraParameters = new HashSet<>();
Map> pathVariables = new HashMap<>();
for (String path : openAPI.getPaths().keySet()) {
List requests = new ArrayList<>();
Set variables = new HashSet<>();
for (Map.Entry methodOperation : openAPI.getPaths().get(path).
readOperationsMap().entrySet()) {
List httpParams = new ArrayList<>();
List queryParams = new ArrayList<>();
List bodyOrFormParams = new ArrayList<>();
List k6Checks = new ArrayList<>();
Set imports = new HashSet();
final Operation operation = methodOperation.getValue();
final PathItem.HttpMethod method = methodOperation.getKey();
for (Map.Entry resp : operation.getResponses().entrySet()) {
String statusData = resp.getKey().equals("default") ? "200" : resp.getKey();
int status = Integer.parseInt(statusData);
if (status >= 200 && status < 300) {
k6Checks.add(new k6Check(status, resp.getValue().getDescription()));
}
}
if (hasBodyParameter(openAPI, operation) || hasFormParameter(openAPI, operation)) {
String defaultContentType = hasFormParameter(openAPI, operation) ? "application/x-www-form-urlencoded" : "application/json";
List consumes = new ArrayList<>(getConsumesInfo(openAPI, operation));
String contentTypeValue = consumes == null || consumes.isEmpty() ? defaultContentType : consumes.get(0);
if (contentTypeValue.equals("*/*"))
contentTypeValue = "application/json";
Parameter contentType = new Parameter("Content-Type", getDoubleQuotedString(contentTypeValue));
httpParams.add(contentType);
RequestBody requestBody = ModelUtils.getReferencedRequestBody(openAPI, operation.getRequestBody());
for (Map.Entry responseEntry : operation.getResponses().entrySet()) {
CodegenResponse r = fromResponse(responseEntry.getKey(), responseEntry.getValue());
if (r.baseType != null &&
!defaultIncludes.contains(r.baseType) &&
!languageSpecificPrimitives.contains(r.baseType)) {
imports.add(r.baseType);
}
}
List formParameteres = fromRequestBodyToFormParameters(requestBody, imports);
for (CodegenParameter parameter : formParameteres) {
String reference = "";
if (parameter.isModel) {
Schema nestedSchema = ModelUtils.getSchema(openAPI, parameter.baseType);
CodegenModel model = fromModel(parameter.paramName, nestedSchema);
reference = generateNestedModelTemplate(model);
if (parameter.dataType.equals("List")) {
reference = "[" + reference + "]";
}
}
Parameter k6Parameter;
if (parameter.dataType.equals("File")) {
k6Parameter = new Parameter(parameter.paramName,
"http.file(open(\"/path/to/file.bin\", \"b\"), \"test.bin\")");
} else {
k6Parameter = new Parameter(parameter.paramName, !reference.isEmpty() ? reference
: getDoubleQuotedString(parameter.dataType.toLowerCase(Locale.ROOT)));
}
bodyOrFormParams.add(k6Parameter);
}
}
String accepts = getAccept(openAPI, operation);
String responseType = getDoubleQuotedString(accepts);
try {
for (io.swagger.v3.oas.models.parameters.Parameter parameter : operation.getParameters()) {
switch (parameter.getIn()) {
case "header":
httpParams.add(new Parameter(parameter.getName(), getTemplateString(toVarName(parameter.getName()))));
extraParameters.add(new Parameter(toVarName(parameter.getName()), parameter.getName().toUpperCase(Locale.ROOT)));
break;
case "path":
case "query":
if (parameter.getIn().equals("query"))
queryParams.add(new Parameter(parameter.getName(), getTemplateVariable(parameter.getName())));
variables.add(new Parameter(toVarName(parameter.getName()), parameter.getName().toUpperCase(Locale.ROOT)));
break;
default:
break;
}
}
} catch (NullPointerException e) {
}
pathVariables.put(path, variables);
final HTTPParameters params = new HTTPParameters(null, null, httpParams, null, null, null, null, null,
responseType.length() > 0 ? responseType : null);
assert params.headers != null;
requests.add(new HTTPRequest(method.toString().toLowerCase(Locale.ROOT), path,
queryParams.size() > 0 ? queryParams : null,
bodyOrFormParams.size() > 0 ? new HTTPBody(bodyOrFormParams) : null,
params.headers.size() > 0 ? params : null, k6Checks.size() > 0 ? k6Checks : null));
}
requestGroups.add(new HTTPRequestGroup(path, pathVariables.get(path), requests));
}
for (HTTPRequestGroup requestGroup : requestGroups) {
for (HTTPRequest request : requestGroup.requests) {
if (request.path.contains("/{")) {
request.path = request.path.replace("/{", "/${");
}
}
}
additionalProperties.put("requestGroups", requestGroups);
additionalProperties.put("extra", extraParameters);
for (String[] supportingTemplateFile : JAVASCRIPT_SUPPORTING_FILES) {
String templateFile = supportingTemplateFile[0];
String folder;
if (INVOKER_PKG_SUPPORTING_FILES.contains(templateFile))
// #1150: script.js must be generated to invokerPackage, otherwise
// nothing works!
folder = createPath(sourceFolder, invokerPackage);
else
folder = "";
supportingFiles.add(new SupportingFile(templateFile, folder, supportingTemplateFile[1]));
}
}
//
private String generateNestedModelTemplate(CodegenModel model) {
StringBuilder reference = new StringBuilder();
int modelEntrySetSize = model.getAllVars().size();
for (CodegenProperty property : model.getAllVars()) {
reference.append(getDoubleQuotedString(property.name)).append(": ").append(getDoubleQuotedString(property.dataType.toLowerCase(Locale.ROOT)));
if (modelEntrySetSize > 1)
reference.append(", ");
}
reference = new StringBuilder("{" + reference + "}");
reference = new StringBuilder(reference.toString().replace(", }", "}"));
return reference.toString();
}
private String getTemplateVariable(String input) {
return "${" + input + "}";
}
public String getModelPropertyNaming() {
return this.modelPropertyNaming;
}
private String getNameUsingModelPropertyNaming(String name) {
switch (CodegenConstants.MODEL_PROPERTY_NAMING_TYPE.valueOf(getModelPropertyNaming())) {
case original:
return name;
case camelCase:
return camelize(name, true);
case PascalCase:
return camelize(name);
case snake_case:
return underscore(name);
default:
throw new IllegalArgumentException("Invalid model property naming '" +
name + "'. Must be 'original', 'camelCase', " +
"'PascalCase' or 'snake_case'");
}
}
@Override
public String toVarName(String name) {
// sanitize name
name = sanitizeName(name); // FIXME parameter should not be assigned. Also declare it as "final"
if ("_".equals(name)) {
name = "_u";
}
// if it's all uppper case, do nothing
if (name.matches("^[A-Z_]*$")) {
return name;
}
// camelize (lower first character) the variable name
// pet_id => petId
name = getNameUsingModelPropertyNaming(name);
// for reserved word or word starting with number, append _
if (isReservedWord(name) || name.matches("^\\d.*")) {
name = escapeReservedWord(name);
}
return name;
}
@Override
public String escapeReservedWord(String name) {
if (this.reservedWordsMappings().containsKey(name)) {
return this.reservedWordsMappings().get(name);
}
return "_" + name;
}
private String getTemplateString(String input) {
return "`" + getTemplateVariable(input) + "`";
}
private String getDoubleQuotedString(String input) {
return "\"" + input + "\"";
}
/**
* Concatenates an array of path segments into a path string.
*
* @param segments The path segments to concatenate. A segment may contain
* either of the file separator characters '\' or '/'. A segment
* is ignored if it is null
, empty or
* ".".
* @return A path string using the correct platform-specific file separator
* character.
*/
private String createPath(String... segments) {
StringBuilder buf = new StringBuilder();
for (String segment : segments) {
if (!StringUtils.isEmpty(segment) && !segment.equals(".")) {
if (buf.length() != 0)
buf.append(File.separatorChar);
buf.append(segment);
}
}
for (int i = 0; i < buf.length(); i++) {
char c = buf.charAt(i);
if ((c == '/' || c == '\\') && c != File.separatorChar)
buf.setCharAt(i, File.separatorChar);
}
return buf.toString();
}
@Override
public String apiFileFolder() {
return createPath(outputFolder, sourceFolder, invokerPackage, apiPackage());
}
public String getInvokerPackage() {
return invokerPackage;
}
public void setInvokerPackage(String invokerPackage) {
this.invokerPackage = invokerPackage;
}
public void setSourceFolder(String sourceFolder) {
this.sourceFolder = sourceFolder;
}
public void setProjectName(String projectName) {
this.projectName = projectName;
}
public void setModuleName(String moduleName) {
this.moduleName = moduleName;
}
public void setProjectDescription(String projectDescription) {
this.projectDescription = projectDescription;
}
public void setProjectVersion(String projectVersion) {
this.projectVersion = projectVersion;
}
public void setLicenseName(String licenseName) {
this.licenseName = licenseName;
}
public void setModelPropertyNaming(String naming) {
if ("original".equals(naming) || "camelCase".equals(naming) || "PascalCase".equals(naming)
|| "snake_case".equals(naming)) {
this.modelPropertyNaming = naming;
} else {
throw new IllegalArgumentException("Invalid model property naming '" + naming
+ "'. Must be 'original', 'camelCase', " + "'PascalCase' or 'snake_case'");
}
}
public void setPreserveLeadingParamChar(boolean preserveLeadingParamChar) {
this.preserveLeadingParamChar = preserveLeadingParamChar;
}
@Override
public String escapeQuotationMark(String input) {
// remove ', " to avoid code injection
return input.replace("\"", "").replace("'", "");
}
@Override
public String escapeUnsafeCharacters(String input) {
return input.replace("*/", "*_/").replace("/*", "/_*");
}
private static String getAccept(OpenAPI openAPI, Operation operation) {
String accepts = null;
String defaultContentType = "application/json";
Set producesInfo = getProducesInfo(openAPI, operation);
if (producesInfo != null && !producesInfo.isEmpty()) {
ArrayList produces = new ArrayList<>(producesInfo);
StringBuilder sb = new StringBuilder();
for (String produce : produces) {
if (defaultContentType.equalsIgnoreCase(produce)) {
accepts = defaultContentType;
break;
} else {
if (sb.length() > 0) {
sb.append(",");
}
sb.append(produce);
}
}
if (accepts == null) {
accepts = sb.toString();
}
} else {
accepts = defaultContentType;
}
return accepts;
}
}