/**
    * Copyright 2004-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.hr.time.util;
  
  import java.sql.SQLException;
  import java.sql.Statement;
  import java.util.List;
  
  import javax.sql.DataSource;
  
  import junit.framework.Assert;
  
  import org.apache.commons.lang.StringUtils;
  import org.springframework.jdbc.core.JdbcTemplate;
  import org.springframework.jdbc.core.StatementCallback;
  import org.springframework.transaction.PlatformTransactionManager;
  import org.springframework.transaction.TransactionStatus;
  import org.springframework.transaction.support.TransactionCallback;
  import org.springframework.transaction.support.TransactionTemplate;
  
  public class LoadDatabaseDataLifeCycle extends SQLDataLifeCycle {
      public LoadDatabaseDataLifeCycle() {
      }
  
      public LoadDatabaseDataLifeCycle(Class caller) {
          super(caller);
      }
  
  	public void loadData(final PlatformTransactionManager transactionManager, final DataSource dataSource, final String schemaName) {
  		LOG.info("Clearing tables for schema " + schemaName);
  		Assert.assertNotNull("DataSource could not be located.", dataSource);
  
  		if (schemaName == null || schemaName.equals("")) {
  			Assert.fail("Empty schema name given");
  		}
  		new TransactionTemplate(transactionManager).execute(new TransactionCallback<Object>() {
              public Object doInTransaction(final TransactionStatus status) {
              	verifyTestEnvironment(dataSource);
              	return new JdbcTemplate(dataSource).execute(new StatementCallback<Object>() {
                  	public Object doInStatement(Statement statement) throws SQLException {
                          if (callingTestClass != null) {
                          	List<String> sqlStatements = getTestDataSQLStatements("src/test/config/sql/" + callingTestClass.getSimpleName() + ".sql");
                          	
                          	for(String sql : sqlStatements){
                                  if (!sql.startsWith("#") && !sql.startsWith("//") && !StringUtils.isEmpty(sql.trim())) {
                                      // ignore comment lines in our sql reader.
                      			    statement.addBatch(sql);
                                  }
                      		}
                          }
                  		statement.executeBatch();
                  		return null;
                  	}
              	});
              }
          });
  	}
  }