allow skip model alias for generators.

modules/swagger-codegen-cli/src/main/java/io/swagger/codegen/cmd/Generate.java

@@ -172,6 +172,9 @@ public class Generate implements Runnable {
  description = CodegenConstants.REMOVE_OPERATION_ID_PREFIX_DESC)
  private Boolean removeOperationIdPrefix;
 
+ @Option(name = {"--skip-alias-generation"}, title = "skip alias generation.", description = "skip code generation for models identified as alias.")
+ private Boolean skipAliasGeneration;
+
  @Override
  public void run() {
 
@@ -273,6 +276,10 @@ public void run() {
  configurator.setRemoveOperationIdPrefix(removeOperationIdPrefix);
  }
 
+ if (skipAliasGeneration != null) {
+ configurator.setSkipAliasGeneration(removeOperationIdPrefix);
+ }
+
  applySystemPropertiesKvpList(systemProperties, configurator);
  applyInstantiationTypesKvpList(instantiationTypes, configurator);
  applyImportMappingsKvpList(importMappings, configurator);

modules/swagger-codegen/src/main/java/io/swagger/codegen/CodegenConfig.java

@@ -222,4 +222,8 @@ public interface CodegenConfig {
 
  String sanitizeName(String name);
 
+ void setSkipAliasGeneration(Boolean skipAliasGeneration);
+
+ Boolean getSkipAliasGeneration();
+
 }

modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultCodegen.java

@@ -103,6 +103,7 @@ public class DefaultCodegen {
  protected String gitUserId, gitRepoId, releaseNote;
  protected String httpUserAgent;
  protected Boolean hideGenerationTimestamp = true;
+ protected Boolean skipAliasGeneration;
  // How to encode special characters like $
  // They are translated to words like "Dollar" and prefixed with '
  // Then translated back during JSON encoding and decoding
@@ -3449,6 +3450,14 @@ public void setSkipOverwrite(boolean skipOverwrite) {
  this.skipOverwrite = skipOverwrite;
  }
 
+ public void setSkipAliasGeneration(Boolean skipAliasGeneration) {
+ this.skipAliasGeneration = skipAliasGeneration;
+ }
+
+ public Boolean getSkipAliasGeneration() {
+ return this.skipAliasGeneration;
+ }
+
  public boolean isRemoveOperationIdPrefix() {
  return removeOperationIdPrefix;
  }

modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java

@@ -401,6 +401,8 @@ private Model getParent(Model model) {
  // post process all processed models
  allProcessedModels = config.postProcessAllModels(allProcessedModels);
 
+ final boolean skipAlias = config.getSkipAliasGeneration() != null && config.getSkipAliasGeneration();
+
  // generate files based on processed models
  for (String modelName : allProcessedModels.keySet()) {
  Map<String, Object> models = (Map<String, Object>) allProcessedModels.get(modelName);
@@ -411,7 +413,7 @@ private Model getParent(Model model) {
  continue;
  }
  Map<String, Object> modelTemplate = (Map<String, Object>) ((List<Object>) models.get("models")).get(0);
- if (config instanceof AbstractJavaCodegen) {
+ if (skipAlias) {
  // Special handling of aliases only applies to Java
  if (modelTemplate != null && modelTemplate.containsKey("model")) {
  CodegenModel m = (CodegenModel) modelTemplate.get("model");

modules/swagger-codegen/src/main/java/io/swagger/codegen/config/CodegenConfigurator.java

@@ -44,6 +44,7 @@ public class CodegenConfigurator implements Serializable {
  private String outputDir;
  private boolean verbose;
  private boolean skipOverwrite;
+ private Boolean skipAliasGeneration;
  private boolean removeOperationIdPrefix;
  private String templateDir;
  private String auth;
@@ -126,6 +127,10 @@ public CodegenConfigurator setRemoveOperationIdPrefix(boolean removeOperationIdP
  return this;
  }
 
+ public void setSkipAliasGeneration(Boolean skipAliasGeneration) {
+ this.skipAliasGeneration = skipAliasGeneration;
+ }
+
  public String getModelNameSuffix() {
  return modelNameSuffix;
  }
@@ -392,6 +397,7 @@ public ClientOptInput toClientOptInput() {
  config.setInputSpec(inputSpec);
  config.setOutputDir(outputDir);
  config.setSkipOverwrite(skipOverwrite);
+ config.setSkipAliasGeneration(skipAliasGeneration);
  config.setIgnoreFilePathOverride(ignoreFileOverride);
  config.setRemoveOperationIdPrefix(removeOperationIdPrefix);
 

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/AbstractJavaCodegen.java

@@ -459,6 +459,10 @@ public void processOpts() {
  } else if (dateLibrary.equals("legacy")) {
  additionalProperties.put("legacyDates", true);
  }
+
+ if (this.skipAliasGeneration == null) {
+ this.skipAliasGeneration = Boolean.TRUE;
+ }
  }
 
  private void sanitizeConfig() {