content: /*
   * Copyright 1999-2018 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.odps;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
  import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlOutputVisitor;
  import com.alibaba.druid.sql.dialect.odps.parser.OdpsStatementParser;
  import com.alibaba.druid.sql.dialect.odps.visitor.OdpsSchemaStatVisitor;
  import com.alibaba.druid.sql.parser.SQLParserFeature;
  import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
  import com.alibaba.druid.support.opds.udf.SqlCodeStat;
  import com.alibaba.druid.util.JdbcUtils;
  import com.alibaba.druid.util.Utils;
  import junit.framework.TestCase;
  
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.Reader;
  import java.util.List;
  
  public class OdpsListResourcesTest extends TestCase {
      public void test_0() throws Exception {
          exec_test("bvt/parser/odps-3.sql");
      }
  
      public static String readResource(String resource) throws Exception {
          InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
          Reader reader = new InputStreamReader(is, "UTF-8");
          String input = Utils.read(reader);
          return input;
      }
  
      public void test_8() throws Exception {
          exec_test("bvt/parser/odps-8.txt");
      }
  
      public void format_resource(String resource) throws Exception {
          InputStream is = null;
  
          is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
          Reader reader = new InputStreamReader(is, "UTF-8");
          String input = Utils.read(reader);
          String formattedSql = SQLUtils.format(input, DbType.odps);
          System.out.println(formattedSql);
      }
  
      public void exec_test(String resource) throws Exception {
  //        System.out.println(resource);
          InputStream is = null;
  
          is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
          Reader reader = new InputStreamReader(is, "UTF-8");
          String input = Utils.read(reader);
          JdbcUtils.close(reader);
          String[] items = input.split("---------------------------");
          String sql = items[0].trim();
          String expect = null;
          if (items.length > 1) {
              expect = items[1].trim();
              if (expect != null) {
                  expect = expect.replaceAll("\\r\\n", "\n");
              }
          }
  
          new SqlCodeStat()
                  .evaluate(sql, "odps");
  
          OdpsStatementParser parser = new OdpsStatementParser(sql,
                  SQLParserFeature.EnableSQLBinaryOpExprGroup,
                  SQLParserFeature.EnableMultiUnion,
                  SQLParserFeature.KeepComments);
          List<SQLStatement> statementList = parser.parseStatementList();
          if (statementList.isEmpty()) {
              throw new Exception("empty");
          }
          SQLStatement stmt = statementList.get(0);
  
  //        assertEquals(1, statementList.size());
  
          SchemaStatVisitor visitor = new OdpsSchemaStatVisitor();
          stmt.accept(visitor);
  
  //        System.out.println(sql);
  //        System.out.println("Tables : " + visitor.getTables());
  //        System.out.println("fields : " + visitor.getColumns());
  //
  //        System.out.println();
  //        System.out.println("---------------------------");
          System.out.println(SQLUtils.toOdpsString(stmt));
  
          if (expect != null && !expect.isEmpty()) {
              assertEquals(expect, stmt.toString());
          }
  
          SchemaStatVisitor schemaStatVisitor = SQLUtils.createSchemaStatVisitor(DbType.odps);
          for (SQLStatement item : statementList) {
              item.accept(schemaStatVisitor);
          }
      }
  
      void mergValidate(String sql, String expect) {
          MySqlStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement statemen = statementList.get(0);
  
          assertEquals(1, statementList.size());
  
          StringBuilder out = new StringBuilder();
          MySqlOutputVisitor visitor = new MySqlOutputVisitor(out, true);
          statemen.accept(visitor);
  
          System.out.println(out.toString());
  
          assertEquals(expect, out.toString());
      }
  }
  