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.pool;
  
  import com.alibaba.druid.pool.DruidDataSource;
  import com.alibaba.druid.pool.PreparedStatementHolder;
  import com.alibaba.druid.test.util.OracleMockDriver;
  import com.alibaba.druid.util.JdbcUtils;
  import junit.framework.TestCase;
  import oracle.jdbc.OracleConnection;
  import oracle.jdbc.internal.OraclePreparedStatement;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  
  public class TestOraclePrefetch extends TestCase {
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          dataSource = new DruidDataSource();
          dataSource.setOracle(true);
          dataSource.setUrl("jdbc:mock:xxx");
          dataSource.setDriver(new OracleMockDriver());
          dataSource.setPoolPreparedStatements(true);
          dataSource.setConnectionProperties("defaultRowPrefetch=50");
  //        dataSource.setFilters("log4j");
      }
  
      protected void tearDown() throws Exception {
          JdbcUtils.close(dataSource);
      }
  
      public void test_oracle() throws Exception {
          String sql = "SELECT 1";
  
          OracleConnection oracleConn;
          OraclePreparedStatement oracleStmt;
          PreparedStatementHolder stmtHolder;
          {
              Connection conn = dataSource.getConnection();
  
              {
                  oracleConn = conn.unwrap(OracleConnection.class);
                  assertEquals(50, oracleConn.getDefaultRowPrefetch());
              }
  
              PreparedStatement stmt = conn.prepareStatement(sql);
  
              oracleStmt = stmt.unwrap(OraclePreparedStatement.class);
              assertEquals(50, oracleStmt.getRowPrefetch());
  
              assertTrue(stmt.isWrapperFor(PreparedStatementHolder.class));
              stmtHolder = stmt.unwrap(PreparedStatementHolder.class);
              assertNotNull(stmtHolder);
              assertEquals(0, stmtHolder.getHitCount());
  
              ResultSet rs = stmt.executeQuery();
              rs.next();
  
              rs.close();
              stmt.close();
              conn.close();
          }
  
          {
              Connection conn = dataSource.getConnection();
  
              {
                  OracleConnection oracleConn2 = conn.unwrap(OracleConnection.class);
                  assertEquals(50, oracleConn2.getDefaultRowPrefetch());
                  assertSame(oracleConn, oracleConn2);
              }
  
              PreparedStatement stmt = conn.prepareStatement(sql);
  
              {
                  PreparedStatementHolder stmtHolder2 = stmt.unwrap(PreparedStatementHolder.class);
                  assertSame(stmtHolder2, stmtHolder);
                  assertEquals(1, stmtHolder.getHitCount());
              }
  
              ResultSet rs = stmt.executeQuery();
              rs.next();
              rs.close();
              stmt.close();
              {
                  OraclePreparedStatement oracleStmt2 = stmt.unwrap(OraclePreparedStatement.class);
                  assertSame(oracleStmt, oracleStmt2);
                  assertEquals(2, oracleStmt.getRowPrefetch());
              }
  
              conn.close();
          }
  
          assertEquals(1, dataSource.getCachedPreparedStatementCount());
      }
  }
  