support mysql procedure declare exception handler

src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlCreateProcedureTest8.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 1999-2101 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.sql.mysql;
+
+import java.util.List;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.MysqlTest;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
+import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+import com.alibaba.druid.stat.TableStat.Column;
+
+/**
+ * 
+ * @Description: begin-end within begin-end
+ * @author zhujun [455910092@qq.com]
+ * @date 2016-4-14
+ * @version V1.0
+ */
+public class MySqlCreateProcedureTest8 extends MysqlTest {
+
+	/**
+	 * DECLARE handler_type HANDLER FOR condition_value[,...] sp_statement handler_type: CONTINUE | EXIT condition_value: SQLSTATE [VALUE] sqlstate_value | condition_name | SQLWARNING | NOT FOUND | SQLEXCEPTION | mysql_error_code
+	 * @throws Exception
+	 */
+    public void test_0() throws Exception {
+    	String sql="create or replace procedure test_cursor (in param int(10),out result varchar(90))  "
+    			+" begin" 
+    			+" declare name varchar(20);"  
+    			+" declare pass varchar(20);"  
+    			+" declare done int;"  
+    			+" declare cur_test CURSOR for select user_name,user_pass from test;"  
+//    			+" declare continue handler FOR SQLSTATE '02000' SET done = 1;"  
+    			+" if param then"  
+    			+" 		select concat_ws(',',user_name,user_pass) into result from test.users where id=param;"  
+    			+" else"  
+    			+" 		open cur_test;"  
+    			+" 		repeat"  
+    			+" 		fetch cur_test into name, pass;"  
+    			+" 		select concat_ws(',',result,name,pass) into result;"  
+    			+" 		until done end repeat;"  
+    			+" 		close cur_test;"  
+    			+" end if;"  
+    			+" end;";
+    	
+    	sql="create or replace procedure sp_name(level int,age int)"+
+				" begin"+
+				" declare continue handler FOR SQLEXCEPTION,SQLWARNING begin SET done = 1; end;"+
+				" end";
+	
+    	MySqlStatementParser parser=new MySqlStatementParser(sql);
+    	List<SQLStatement> statementList = parser.parseStatementList();
+    	SQLStatement statemen = statementList.get(0);
+    	print(statementList);
+        Assert.assertEquals(1, statementList.size());
+
+        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
+        statemen.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+        
+        Assert.assertEquals(0, visitor.getTables().size());
+        Assert.assertEquals(0, visitor.getColumns().size());
+        Assert.assertEquals(0, visitor.getConditions().size());
+    }
+}