parse 메소드 오버로딩 최적화

Author: inzapp

.idea/workspace.xml

@@ -1,40 +1,27 @@
 {
   "CRUD": ["SELECT"],
-  "COLUMN": ["*"],
-  "TABLE": ["(SELECT A, B, C FROM SUBQUERYTABLE WHERE CONDITION IN ('A', 'B', 'C') AND CONDITION IN (SELECT CONDITION FROM ANOTHER UNION SELECT CONDITION FROM UNIONTABLE))"],
-  "TABLE SUB QUERY 1": ["(SELECT A, B, C FROM SUBQUERYTABLE WHERE CONDITION IN ('A', 'B', 'C') AND CONDITION IN (SELECT CONDITION FROM ANOTHER UNION SELECT CONDITION FROM UNIONTABLE))"],
+  "COLUMN": [
+    "A",
+    "B"
+  ],
+  "ORDER_BY": ["A"],
+  "TABLE": ["(SELECT A, B FROM FROMTABLE WHERE SUBCONDITION = 'SUBCONDITION')"],
+  "TABLE SUB QUERY 1": ["(SELECT A, B FROM FROMTABLE WHERE SUBCONDITION = 'SUBCONDITION')"],
   "TABLE SUB QUERY ANALYSE 1": {
     "CRUD": ["SELECT"],
     "COLUMN": [
       "A",
-      "B",
-      "C"
+      "B"
     ],
-    "TABLE": ["SUBQUERYTABLE"],
-    "WHERE": ["CONDITION IN ('A', 'B', 'C') AND CONDITION IN (SELECT CONDITION FROM ANOTHER UNION SELECT CONDITION FROM UNIONTABLE)"],
-    "WHERE SUB QUERY 1": ["(SELECT CONDITION FROM ANOTHER UNION SELECT CONDITION FROM UNIONTABLE)"],
-    "WHERE SUB QUERY ANALYSE 1": {
-      "CRUD": ["SELECT"],
-      "COLUMN": ["CONDITION"],
-      "TABLE": ["ANOTHER"],
-      "UNION 1": ["SELECT CONDITION FROM UNIONTABLE"],
-      "UNION ANALYSE 1": {
-        "CRUD": ["SELECT"],
-        "COLUMN": ["CONDITION"],
-        "TABLE": ["UNIONTABLE"]
-      }
-    }
+    "TABLE": ["FROMTABLE"],
+    "WHERE": ["SUBCONDITION = 'SUBCONDITION'"]
   },
-  "UNION ALL 1": ["SELECT * FROM TAB2 UNION SELECT * FROM TAB3"],
-  "UNION ALL ANALYSE 1": {
+  "WHERE": ["C = (SELECT C FROM WHERETABLE WHERE WHERECONDITION = 'WHERECONDITION')"],
+  "WHERE SUB QUERY 1": ["(SELECT C FROM WHERETABLE WHERE WHERECONDITION = 'WHERECONDITION')"],
+  "WHERE SUB QUERY ANALYSE 1": {
     "CRUD": ["SELECT"],
-    "COLUMN": ["*"],
-    "TABLE": ["TAB2"],
-    "UNION 1": ["SELECT * FROM TAB3"],
-    "UNION ANALYSE 1": {
-      "CRUD": ["SELECT"],
-      "COLUMN": ["*"],
-      "TABLE": ["TAB3"]
-    }
+    "COLUMN": ["C"],
+    "TABLE": ["WHERETABLE"],
+    "WHERE": ["WHERECONDITION = 'WHERECONDITION'"]
   }
 }

input.json

@@ -1 +1 @@
-(SELECT * FROM (SELECT A, B, C FROM SUBQUERYTABLE WHERE CONDITION IN ('A', 'B', 'C') AND CONDITION IN (SELECT CONDITION FROM ANOTHER UNION SELECT CONDITION FROM UNIONTABLE))) UNION ALL  (SELECT * FROM TAB2 UNION SELECT * FROM TAB3)
+(SELECT A, B FROM (SELECT A, B FROM FROMTABLE WHERE SUBCONDITION = 'SUBCONDITION') WHERE C = (SELECT C FROM WHERETABLE WHERE WHERECONDITION = 'WHERECONDITION') ORDER BY A)

out/production/json-to-sql-parser/com/inzapp/jsonToSqlParser/core/Parser.class

@@ -8,34 +8,7 @@
 
 public class Parser extends JsonManager {
     public String parse(JSONObject json) {
-        setJson(json);
-        Statement statement;
-        String crud = getFromJson(JsonKey.CRUD).get(0);
-        switch (crud) {
-            case JsonKey.INSERT:
-                statement = new InsertParser().parse(json);
-                break;
-
-            case JsonKey.SELECT:
-                if (getFromJson(JsonKey.UNION + 1) != null || getFromJson(JsonKey.UNION_ALL + 1) != null)
-                    statement = new UnionSelectParser().parse(json);
-                else statement = new SelectParser().parse(json);
-                break;
-
-            case JsonKey.UPDATE:
-                statement = new UpdateParser().parse(json);
-                break;
-
-            case JsonKey.DELETE:
-                statement = new DeleteParser().parse(json);
-                break;
-
-            default:
-                System.out.println("unknown crud : " + crud);
-                return null;
-        }
-
-        return statement.toString();
+        return parse(json, false);
     }
 
     public String parse(JSONObject json, boolean exceptUnion) {
@@ -48,7 +21,8 @@ public String parse(JSONObject json, boolean exceptUnion) {
                 break;
 
             case JsonKey.SELECT:
-                statement = new SelectParser().parse(json);
+                if(exceptUnion) statement = new SelectParser().parse(json);
+                else statement = new UnionSelectParser().parse(json);
                 break;
 
             case JsonKey.UPDATE: