add sql wall support

src/main/java/com/alibaba/druid/filter/wall/IllegalConditionViolation.java

@@ -1,27 +0,0 @@
-package com.alibaba.druid.filter.wall;
-
-public class IllegalConditionViolation implements Violation {
-
-    private String condition;
-
-    public IllegalConditionViolation(){
-
-    }
-
-    public IllegalConditionViolation(String condition){
-        this.condition = condition;
-    }
-
-    public String getCondition() {
-        return condition;
-    }
-
-    public void setCondition(String condition) {
-        this.condition = condition;
-    }
-    
-    public String toString() {
-        return this.condition;
-    }
-
-}

src/main/java/com/alibaba/druid/filter/wall/spi/OracleWallProvider.java

@@ -0,0 +1,21 @@
+package com.alibaba.druid.filter.wall.spi;
+
+import com.alibaba.druid.filter.wall.WallProvider;
+import com.alibaba.druid.filter.wall.WallVisitor;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+import com.alibaba.druid.sql.parser.SQLStatementParser;
+
+
+public class OracleWallProvider extends WallProvider {
+
+    @Override
+    public SQLStatementParser createParser(String sql) {
+        return new OracleStatementParser(sql);
+    }
+
+    @Override
+    public WallVisitor createWallVisitor() {
+        return new OracleWallVisitor();
+    }
+
+}

src/main/java/com/alibaba/druid/filter/wall/spi/WallVisitorUtils.java

@@ -1,6 +1,6 @@
 package com.alibaba.druid.filter.wall.spi;
 
-import com.alibaba.druid.filter.wall.IllegalConditionViolation;
+import com.alibaba.druid.filter.wall.IllegalSQLObjectViolation;
 import com.alibaba.druid.filter.wall.WallVisitor;
 import com.alibaba.druid.sql.SQLUtils;
 import com.alibaba.druid.sql.ast.SQLExpr;
@@ -25,7 +25,7 @@ public class WallVisitorUtils {
 
     public static void check(WallVisitor visitor, SQLBinaryOpExpr x) {
         if (Boolean.TRUE == getValue(x)) {
-            visitor.getViolations().add(new IllegalConditionViolation(SQLUtils.toSQLString(x)));
+            visitor.getViolations().add(new IllegalSQLObjectViolation(SQLUtils.toSQLString(x)));
         }
     }