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/*
* Copyright 2018 OpenAPI-Generator Contributors (https://openapi-generator.tech)
* Copyright 2018 SmartBear Software
*
* 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.media.Schema;
import io.swagger.v3.oas.models.parameters.Parameter;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.openapitools.codegen.CodegenConfig;
import org.openapitools.codegen.CodegenType;
import org.openapitools.codegen.SupportingFile;
import org.openapitools.codegen.meta.features.*;
import org.openapitools.codegen.utils.ModelUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.*;
public class ScalaGatlingCodegen extends AbstractScalaCodegen implements CodegenConfig {
private final Logger LOGGER = LoggerFactory.getLogger(ScalaGatlingCodegen.class);
// source folder where to write the files
protected String resourceFolder = "src" + File.separator + "gatling" + File.separator + "resources";
protected String confFolder = resourceFolder + File.separator + "conf";
protected String dataFolder = resourceFolder + File.separator + "data";
protected String apiVersion = "1.0.0";
/**
* Configures the type of generator.
*
* @return the CodegenType for this generator
*/
@Override
public CodegenType getTag() {
return CodegenType.CLIENT;
}
/**
* Configures a friendly name for the generator. This will be used by the generator
* to select the library with the -g flag.
*
* @return the friendly name for the generator
*/
@Override
public String getName() {
return "scala-gatling";
}
/**
* Returns human-friendly help for the generator. Provide the consumer with help
* tips, parameters here
*
* @return A string value for the help message
*/
@Override
public String getHelp() {
return "Generates a gatling simulation library (beta).";
}
public ScalaGatlingCodegen() {
super();
// Although the generator supports authorization, it's done via manual header modification and it's done
// globally. This means it doesn't _technically_ support auth per OpenAPI Spec (which would allow, for example, a different API key per operation),
// so it's not listed here as supported.
modifyFeatureSet(features -> features
.includeDocumentationFeatures(DocumentationFeature.Readme)
.wireFormatFeatures(EnumSet.of(WireFormatFeature.JSON, WireFormatFeature.XML, WireFormatFeature.Custom))
.securityFeatures(EnumSet.noneOf(SecurityFeature.class))
.excludeGlobalFeatures(
GlobalFeature.XMLStructureDefinitions,
GlobalFeature.Callbacks,
GlobalFeature.LinkObjects,
GlobalFeature.ParameterStyling
)
.excludeSchemaSupportFeatures(
SchemaSupportFeature.Polymorphism
)
.excludeParameterFeatures(
ParameterFeature.Cookie
)
.includeClientModificationFeatures(
ClientModificationFeature.BasePath
)
);
sourceFolder = "src" + File.separator + "gatling" + File.separator + "scala";
// set the output folder here
outputFolder = "generated-code/gatling";
/**
* Api classes. You can write classes for each Api file with the apiTemplateFiles map.
* as with models, add multiple entries with different extensions for multiple files per
* class
*/
apiTemplateFiles.put(
"api.mustache", // the template to use
"Simulation.scala"); // the extension for each file to write
modelTemplateFiles.put("model.mustache", ".scala");
/**
* Template Location. This is the location which templates will be read from. The generator
* will use the resource stream to attempt to read the templates.
*/
templateDir = "scala-gatling";
/**
* Api Package. Optional, if needed, this can be used in templates
*/
apiPackage = "org.openapitools.client.api";
/**
* Model Package. Optional, if needed, this can be used in templates
*/
modelPackage = "org.openapitools.client.model";
/**
* Additional Properties. These values can be passed to the templates and
* are available in models, apis, and supporting files
*/
additionalProperties.put("apiVersion", apiVersion);
/**
* Supporting Files. You can write single files for the generator with the
* entire object tree available. If the input file has a suffix of `.mustache
* it will be processed by the template engine. Otherwise, it will be copied
*/
supportingFiles.add(new SupportingFile("build.gradle",
"",
"build.gradle"));
supportingFiles.add(new SupportingFile("logback.xml",
confFolder,
"logback.xml"));
supportingFiles.add(new SupportingFile("default.conf.mustache",
confFolder,
"default.conf"));
supportingFiles.add(new SupportingFile("default.conf.mustache",
confFolder,
"CI.conf"));
supportingFiles.add(new SupportingFile("default.conf.mustache",
confFolder,
"CD.conf"));
supportingFiles.add(new SupportingFile("default.conf.mustache",
confFolder,
"stress.conf"));
supportingFiles.add(new SupportingFile("default.conf.mustache",
confFolder,
"baseline.conf"));
supportingFiles.add(new SupportingFile("default.conf.mustache",
confFolder,
"longevity.conf"));
importMapping.remove("List");
importMapping.remove("Set");
importMapping.remove("Map");
importMapping.put("Date", "java.util.Date");
typeMapping = new HashMap();
typeMapping.put("enum", "NSString");
typeMapping.put("array", "List");
typeMapping.put("set", "Set");
typeMapping.put("boolean", "Boolean");
typeMapping.put("string", "String");
typeMapping.put("int", "Int");
typeMapping.put("long", "Long");
typeMapping.put("float", "Float");
typeMapping.put("byte", "Byte");
typeMapping.put("short", "Short");
typeMapping.put("char", "Char");
typeMapping.put("double", "Double");
typeMapping.put("object", "Any");
typeMapping.put("file", "File");
typeMapping.put("binary", "String");
typeMapping.put("ByteArray", "String");
typeMapping.put("date-time", "Date");
typeMapping.put("DateTime", "Date");
instantiationTypes.put("array", "ListBuffer");
instantiationTypes.put("map", "HashMap");
setReservedWordsLowerCase(
Arrays.asList(
// local variable names used in API methods (endpoints)
"path", "contentTypes", "contentType", "queryParams", "headerParams",
"formParams", "postBody", "mp", "basePath", "apiInvoker",
// scala reserved words
"abstract", "case", "catch", "class", "def", "do", "else", "extends",
"false", "final", "finally", "for", "forSome", "if", "implicit",
"import", "lazy", "match", "new", "null", "object", "override", "package",
"private", "protected", "return", "sealed", "super", "this", "throw",
"trait", "try", "true", "type", "val", "var", "while", "with", "yield")
);
}
/**
* Gatling does not need the models to have escaped words as it builds models dynamically instead of through
* an instance of the object.
*
* @return the escaped term
*/
@Override
public String escapeReservedWord(String name) {
return name;
}
/**
* Location to write model files. You can use the modelPackage() as defined when the class is
* instantiated
*/
@Override
public String modelFileFolder() {
return outputFolder + File.separator + sourceFolder + File.separator + modelPackage().replace('.', File.separatorChar);
}
/**
* Location to write api files. You can use the apiPackage() as defined when the class is
* instantiated
*/
@Override
public String apiFileFolder() {
return outputFolder + File.separator + sourceFolder + File.separator + apiPackage().replace('.', File.separatorChar);
}
/**
* Modifies the openapi doc to make mustache easier to use
*
* @param openAPI input openapi document
*/
@Override
public void preprocessOpenAPI(OpenAPI openAPI) {
for (Map.Entry openAPIGetPathsEntry : openAPI.getPaths().entrySet()) {
String pathname = openAPIGetPathsEntry.getKey();
PathItem path = openAPIGetPathsEntry.getValue();
if (path.readOperations() == null) {
continue;
}
for (Operation operation : path.readOperations()) {
if (operation.getExtensions() == null) {
operation.setExtensions(new HashMap());
}
if (!operation.getExtensions().keySet().contains("x-gatling-path")) {
if (pathname.contains("{")) {
String gatlingPath = pathname.replaceAll("\\{", "\\$\\{");
operation.addExtension("x-gatling-path", gatlingPath);
} else {
operation.addExtension("x-gatling-path", pathname);
}
}
Set headerParameters = new HashSet<>();
Set formParameters = new HashSet<>();
Set queryParameters = new HashSet<>();
Set pathParameters = new HashSet<>();
if (operation.getParameters() != null) {
for (Parameter parameter : operation.getParameters()) {
if ("header".equalsIgnoreCase(parameter.getIn())) {
headerParameters.add(parameter);
}
/* need to revise below as form parameter is no longer in the parameter list
if (parameter.getIn().equalsIgnoreCase("formData")) {
formParameters.add(parameter);
}
*/
if ("query".equalsIgnoreCase(parameter.getIn())) {
queryParameters.add(parameter);
}
if ("path".equalsIgnoreCase(parameter.getIn())) {
pathParameters.add(parameter);
}
/* TODO need to revise below as body is no longer in the parameter
if (parameter.getIn().equalsIgnoreCase("body")) {
BodyParameter bodyParameter = (BodyParameter) parameter;
Model model = bodyParameter.getSchema();
if (model instanceof RefModel) {
String[] refArray = model.getReference().split("\\/");
operation.setVendorExtension("x-gatling-body-object", refArray[refArray.length - 1] + ".toStringBody");
Set bodyFeederParams = new HashSet<>();
Set sessionBodyVars = new HashSet<>();
for (Map.Entry modelEntry : swagger.getDefinitions().entrySet()) {
if (refArray[refArray.length - 1].equalsIgnoreCase(modelEntry.getKey())) {
for (Map.Entry propertyEntry : modelEntry.getValue().getProperties().entrySet()) {
bodyFeederParams.add(propertyEntry.getKey());
sessionBodyVars.add("\"${" + propertyEntry.getKey() + "}\"");
}
}
}
operation.setVendorExtension("x-gatling-body-feeder", operation.getOperationId() + "BodyFeeder");
operation.setVendorExtension("x-gatling-body-feeder-params", StringUtils.join(sessionBodyVars, ","));
try {
FileUtils.writeStringToFile(
new File(outputFolder + File.separator + dataFolder + File.separator + operation.getOperationId() + "-" + "bodyParams.csv"),
StringUtils.join(bodyFeederParams, ","),
StandardCharsets.UTF_8
);
} catch (IOException ioe) {
LOGGER.error("Could not create feeder file for operationId" + operation.getOperationId(), ioe);
}
} else if (model instanceof ArrayModel) {
operation.setVendorExtension("x-gatling-body-object", "StringBody(\"[]\")");
} else {
operation.setVendorExtension("x-gatling-body-object", "StringBody(\"{}\")");
}
}
*/
}
}
prepareGatlingData(operation, headerParameters, "header");
prepareGatlingData(operation, formParameters, "form");
prepareGatlingData(operation, queryParameters, "query");
prepareGatlingData(operation, pathParameters, "path");
}
}
}
/**
* Creates all the necessary openapi vendor extensions and feeder files for gatling
*
* @param operation OpenAPI Operation
* @param parameters OpenAPI Parameters
* @param parameterType OpenAPI Parameter Type
*/
private void prepareGatlingData(Operation operation, Set parameters, String parameterType) {
if (parameters.size() > 0) {
List parameterNames = new ArrayList<>();
List
