added codegen argument class and a new method to be implemented for languages classes.

Author: HugoMario

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

@@ -0,0 +1,61 @@
+package io.swagger.codegen;
+
+public class CodegenArgument {
+
+    private String option;
+    private String shortOption;
+    private String description;
+    private String type;
+
+    public String getOption() {
+        return option;
+    }
+
+    public void setOption(String option) {
+        this.option = option;
+    }
+
+    public CodegenArgument option(String option) {
+        this.option = option;
+        return this;
+    }
+
+    public String getShortOption() {
+        return shortOption;
+    }
+
+    public void setShortOption(String shortOption) {
+        this.shortOption = shortOption;
+    }
+
+    public CodegenArgument shortOption(String shortOption) {
+        this.shortOption = shortOption;
+        return this;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public CodegenArgument description(String description) {
+        this.description = description;
+        return this;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public CodegenArgument type(String type) {
+        this.type = type;
+        return this;
+    }
+}

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

@@ -219,4 +219,6 @@ public interface CodegenConfig {
     String toGetter(String name);
 
     void addHandlebarHelpers(Handlebars handlebars);
+
+    List<CodegenArgument> getLanguageArguments();
 }

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

@@ -3164,6 +3164,11 @@ public void addHandlebarHelpers(Handlebars handlebars) {
         handlebars.registerHelper(HasNotHelper.NAME, new HasNotHelper());
     }
 
+    @Override
+    public List<CodegenArgument> getLanguageArguments() {
+        return null;
+    }
+
     /**
      * Only write if the file doesn't exist
      *