Package org.apache.empire.db.mssql

Source Code of org.apache.empire.db.mssql.DBDatabaseDriverMSSqlTest

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you 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 org.apache.empire.db.mssql;

import static org.junit.Assert.assertEquals;

import java.sql.Connection;

import org.apache.empire.DBResource;
import org.apache.empire.DBResource.DB;
import org.apache.empire.db.CompanyDB;
import org.apache.empire.db.DBCommand;
import org.apache.empire.db.DBDatabaseDriver;
import org.apache.empire.db.DBRecord;
import org.apache.empire.db.DBSQLScript;
import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;

@Ignore
public class DBDatabaseDriverMSSqlTest
{

  @Rule
  public DBResource dbResource = new DBResource(DB.MSSQL_JTDS);

  @Test
  public void testChineseCharacters()
  {
    Connection conn = dbResource.getConnection();

    DBDatabaseDriver driver = dbResource.newDriver();
    CompanyDB db = new CompanyDB();

    // Encoding issue occur when prepared statement is disabled
    //db.setPreparedStatementsEnabled(true);

    db.open(driver, dbResource.getConnection());

    if(!databaseExists(conn, db)){
      DBSQLScript script = new DBSQLScript();
      db.getCreateDDLScript(db.getDriver(), script);
      System.out.println(script.toString());
      script.run(db.getDriver(), dbResource.getConnection(), false);
    }
   
    // STEP 5: Clear Database (Delete all records)
    System.out.println("*** Step 5: clearDatabase() ***");
    clearDatabase(conn, db);

    DBRecord dep = new DBRecord();
    dep.create(db.DEPARTMENT);
    dep.setValue(db.DEPARTMENT.NAME, "junit");
    dep.setValue(db.DEPARTMENT.BUSINESS_UNIT, "中文");
    dep.update(conn);

    int id = dep.getInt(db.DEPARTMENT.ID);

    // Update an Employee
    DBRecord depRead = new DBRecord();
    depRead.read(db.DEPARTMENT, id, conn);

    // You may see ?? in the DB record
    assertEquals("中文", depRead.getString(db.DEPARTMENT.BUSINESS_UNIT));
  }
 
  /**
     * <PRE>
   * Empties all Tables.
     * </PRE>
   */
  private static void clearDatabase(Connection conn, CompanyDB db)
    {
    DBCommand cmd = db.createCommand();
    // Delete all Employees (no constraints)
    db.executeSQL(cmd.getDelete(db.DEPARTMENT), conn);
  }
 
  /**
     * <PRE>
   * Checks whether the database exists or not by executing
   *     select count(*) from DEPARTMENTS
   * If the Departments table does not exist the querySingleInt() function return -1 for failure.
   * Please note that in this case an error will appear in the log which can be ignored.
     * </PRE>
   */
  private static boolean databaseExists(Connection conn, CompanyDB db)
    {
    // Check whether DB exists
    DBCommand cmd = db.createCommand();
    cmd.select(db.DEPARTMENT.count());
    // Check using "select count(*) from DEPARTMENTS"
    System.out.println("Checking whether table DEPARTMENTS exists (SQLException will be logged if not - please ignore) ...");
    return (db.querySingleInt(cmd, -1, conn) >= 0);
  }
}
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