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.mock;
  
  import com.alibaba.druid.util.jdbc.StatementBase;
  
  import java.sql.Connection;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.Statement;
  import java.util.ArrayList;
  import java.util.List;
  
  public class MockStatement extends StatementBase implements MockStatementBase, Statement {
      public static final String ERROR_SQL = "THROW ERROR";
  
      protected MockConnection mockConnection;
  
      public MockStatement(Connection connection) {
          super(connection);
  
          if (connection instanceof MockConnection) {
              mockConnection = (MockConnection) connection;
          }
      }
  
      protected void checkOpen() throws SQLException {
          if (closed) {
              throw new SQLException();
          }
  
          if (this.mockConnection != null) {
              mockConnection.checkState();
          }
      }
  
      public MockConnection getConnection() {
          return mockConnection;
      }
  
      public void setFakeConnection(MockConnection fakeConnection) {
          this.mockConnection = fakeConnection;
          this.setConnection(fakeConnection);
      }
  
      @Override
      public ResultSet executeQuery(String sql) throws SQLException {
          checkOpen();
  
          if (mockConnection != null && mockConnection.getDriver() != null) {
              return mockConnection.getDriver().executeQuery(this, sql);
          }
  
          List<Object[]> mockRows = new ArrayList<>();
          mockRows.add(new Object[1]);
          return new MockResultSet(this, mockRows);
      }
  
      @Override
      public int executeUpdate(String sql) throws SQLException {
          checkOpen();
  
          if (mockConnection != null) {
              mockConnection.handleSleep();
          }
  
          return 0;
      }
  
      @Override
      public boolean execute(String sql) throws SQLException {
          checkOpen();
  
          if (ERROR_SQL.equals(sql)) {
              throw new SQLException();
          }
  
          if (mockConnection != null) {
              mockConnection.setLastSql(sql);
              mockConnection.handleSleep();
          }
  
          return false;
      }
  
  }
  