added capability to work with language argument options on generator …

…service.

modules/swagger-codegen/src/main/java/io/swagger/codegen/v3/service/GeneratorUtil.java

@@ -6,6 +6,7 @@
 import io.swagger.codegen.CodegenConfigLoader;
 import io.swagger.codegen.CodegenConstants;
 import io.swagger.codegen.v3.ClientOptInput;
+import io.swagger.codegen.v3.CodegenArgument;
 import io.swagger.codegen.v3.config.CodegenConfigurator;
 import io.swagger.codegen.v3.service.exception.BadRequestException;
 import io.swagger.models.Swagger;
@@ -198,6 +199,7 @@ public static ClientOptInput getClientOptInput(GenerationRequest generationReque
 
  if (isNotEmpty(lang)) {
  configurator.setLang(lang);
+ readCodegenArguments(configurator, options);
  }
  if (isNotEmpty(options.getAuth())) {
  configurator.setAuth(options.getAuth());
@@ -286,4 +288,26 @@ public static ClientOptInput getClientOptInput(GenerationRequest generationReque
  LOGGER.debug("getClientOptInput - end");
  return configurator.toClientOptInput();
  }
+
+ private static void readCodegenArguments(CodegenConfigurator configurator, Options options) {
+ if (options == null) {
+ return;
+ }
+ io.swagger.codegen.v3.CodegenConfig config = io.swagger.codegen.v3.CodegenConfigLoader.forName(configurator.getLang());
+ if (config == null) {
+ return;
+ }
+ final List<CodegenArgument> arguments = config.readLanguageArguments();
+ if (arguments == null || arguments.isEmpty()) {
+ return;
+ }
+ for (CodegenArgument codegenArgument : arguments) {
+ final String value = options.getCodegenArguments().get(codegenArgument.getOption().substring(2));
+ if (value == null) {
+ continue;
+ }
+ codegenArgument.setValue(value);
+ }
+ configurator.setCodegenArguments(arguments);
+ }
 }

modules/swagger-codegen/src/main/java/io/swagger/codegen/v3/service/Options.java

@@ -37,6 +37,8 @@ public class Options {
  private Boolean skipOverride;
  private String outputDir = "";
 
+ private Map<String, String> codegenArguments = new LinkedHashMap<>();
+
  public Options authorizationValue(AuthorizationValue authorizationValue) {
  this.authorizationValue = authorizationValue;
  return this;
@@ -211,6 +213,25 @@ public Options addImportMapping(String key, String value) {
  return this;
  }
 
+ public Options codegenArguments(Map<String, String> codegenArguments) {
+ this.codegenArguments = codegenArguments;
+ return this;
+ }
+
+ public Map<String, String> getCodegenArguments() {
+ return codegenArguments;
+ }
+
+ public void setCodegenArguments(Map<String, String> codegenArguments) {
+ this.codegenArguments = codegenArguments;
+ }
+
+ public Options addCodegenArgument(String key, String value) {
+ this.codegenArguments.put(key, value);
+ return this;
+ }
+
+
  public Options invokerPackage(String invokerPackage) {
  this.invokerPackage = invokerPackage;
  return this;