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/**
 *
 *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
 *
 *  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 org.apache.tuscany.das.rdb.test.framework;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public abstract class TestData {
	
	protected Object[][] data;
	private int currentRow = -1;
	protected Connection connection;
	

	public TestData(Connection c, Object[][] customerData) {
		this.connection = c; 
		this.data = customerData;
	}

	public int size() {
		return data[0].length;
	}
	
	public int numberOfRows() {
		return data.length;
	}
	
	public boolean next() {
		++currentRow;
		if ( currentRow < numberOfRows() ) 
			return true;
		else
			return false;
	}

	public abstract String getTableName();
	
	
	public Object getObject(int i) {
		return data[currentRow][i-1];
	}
	
	public void refresh() throws SQLException {
		deleteRowsFromTable();
		insertRows();
	}
	
	protected void deleteRowsFromTable() throws SQLException {
		PreparedStatement ps = connection.prepareStatement("delete from " + getTableName());
		ps.execute();
	}
	
	protected void insertRows() throws SQLException {
		StringBuffer sql = new StringBuffer();
		sql.append("insert into ");
		sql.append(getTableName());
		sql.append(" values (");
		for ( int i=1; i < size(); i++) {
			sql.append("?,");
		}
		sql.append("?)");
		PreparedStatement ps = connection.prepareStatement(sql.toString());
		
		while ( next() ) {
			for ( int i=1; i <= size(); i++ ) {
				ps.setObject(i, getObject(i));
			}
			ps.execute();
			ps.clearParameters();
		}
	}
}