Merge pull request #10356 from swagger-api/issue-5950

added option to write a throwing exception for unknown enums values.

Author: HugoMario

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

@@ -57,6 +57,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegen implements Code
     public static final String WITH_XML = "withXml";
     public static final String SUPPORT_JAVA6 = "supportJava6";
     public static final String DISABLE_HTML_ESCAPING = "disableHtmlEscaping";
+    public static final String ERROR_ON_UNKNOWN_ENUM = "errorOnUnknownEnum";
 
     protected String dateLibrary = "threetenbp";
     protected boolean supportAsync = false;
@@ -365,6 +366,11 @@ public void processOpts() {
         }
         additionalProperties.put(WITH_XML, withXml);
 
+        if (additionalProperties.containsKey(ERROR_ON_UNKNOWN_ENUM)) {
+            boolean errorOnUnknownEnum = Boolean.parseBoolean(additionalProperties.get(ERROR_ON_UNKNOWN_ENUM).toString());
+            additionalProperties.put(ERROR_ON_UNKNOWN_ENUM, errorOnUnknownEnum);
+        }
+
         // make api and model doc path available in mustache template
         additionalProperties.put("apiDocPath", apiDocPath);
         additionalProperties.put("modelDocPath", modelDocPath);

modules/swagger-codegen/src/main/resources/Java/modelEnum.mustache

@@ -48,7 +48,7 @@ public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum
         return b;
       }
     }
-    return null;
+    {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
   }
 {{#gson}}
 

modules/swagger-codegen/src/main/resources/Java/modelInnerEnum.mustache

@@ -39,7 +39,7 @@
           return b;
         }
       }
-      return null;
+      {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
     }
 {{#gson}}
 

modules/swagger-codegen/src/main/resources/JavaInflector/enumClass.mustache

@@ -39,6 +39,6 @@
           return b;
         }
       }
-      return null;
+      {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
     }
   }

modules/swagger-codegen/src/main/resources/JavaInflector/enumOuterClass.mustache

@@ -37,6 +37,6 @@ public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum
         return b;
       }
     }
-    return null;
+    {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
   }
 }

modules/swagger-codegen/src/main/resources/JavaJaxRS/cxf-cdi/enumClass.mustache

@@ -28,6 +28,6 @@ public enum {{datatypeWithEnum}} {
                 return b;
             }
         }
-        return null;
+        {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
     }
 }

modules/swagger-codegen/src/main/resources/JavaJaxRS/cxf/enumClass.mustache

@@ -28,6 +28,6 @@ public enum {{datatypeWithEnum}} {
                 return b;
             }
         }
-        return null;
+        {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
     }
 }

modules/swagger-codegen/src/main/resources/JavaJaxRS/cxf/enumOuterClass.mustache

@@ -42,7 +42,7 @@ public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum
         return b;
       }
     }
-    return null;
+    {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
   }
 
 }

modules/swagger-codegen/src/main/resources/JavaJaxRS/enumClass.mustache

@@ -39,6 +39,6 @@
           return b;
         }
       }
-      return null;
+      {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
     }
   }

modules/swagger-codegen/src/main/resources/JavaJaxRS/enumOuterClass.mustache

@@ -37,6 +37,6 @@ public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum
         return b;
       }
     }
-    return null;
+    {{^errorOnUnknownEnum}}return null;{{/errorOnUnknownEnum}}{{#errorOnUnknownEnum}}throw new IllegalArgumentException("Unexpected value '" + text + "' for '{{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}' enum.");{{/errorOnUnknownEnum}}
   }
 }