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/*
*
* Derby - Class org.apache.derbyTesting.system.oe.util.OEChecks
*
* 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.derbyTesting.system.oe.util;
import java.sql.SQLException;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.Connection;
import org.apache.derbyTesting.system.oe.client.Load;
/**
* Do some OEChecks on the Order Entry database.
*/
public class OEChecks {
/**
* How to report an error.
*/
private HandleCheckError errorHandler;
/**
* Warehouse scaling factor
*/
private short scale = 1;
private Connection conn = null;
public void initialize(HandleCheckError errorHandler,
Connection conn, short scale)
throws Exception
{
this.errorHandler = errorHandler;
this.conn = conn;
conn.setAutoCommit(false);
this.scale = scale;
}
/**
* Return suite of tests that OEChecks the row counts for all the tables in
* the Order Entry bechmark.
*/
public void checkAllRowCounts() throws Exception {
testWarehouseRows();
testStockRows();
testItemRows();
testCustomerRows();
testDistrictRows();
testOrdersRows();
testNewOrdersRows();
testOrderLineRows();
testHistoryRows();
}
/**
* Test cardinality of WAREHOUSE table
*
* @throws Exception
*/
public void testWarehouseRows() throws Exception {
checkCountStar("WAREHOUSE", scale);
}
/**
* Test cardinality of STOCK table
*
* @throws Exception
*/
public void testStockRows() throws Exception {
checkCountStar("STOCK", Load.STOCK_COUNT_W * scale);
}
/**
* Test cardinality of ORDERS table
*
* @throws Exception
*/
public void testOrdersRows() throws Exception {
checkCountStar("ORDERS", Load.ORDERS_COUNT_W * scale);
}
/**
* Test cardinality of DISTRICT table
*
* @throws Exception
*/
public void testDistrictRows() throws Exception {
checkCountStar("DISTRICT", Load.DISTRICT_COUNT_W * scale);
}
/**
* Test cardinality of CUSTOMER table
*
* @throws Exception
*/
public void testCustomerRows() throws Exception {
checkCountStar("CUSTOMER", Load.CUSTOMER_COUNT_W * scale);
}
/**
* Test cardinality of ITEM table
*
* @throws Exception
*/
public void testItemRows() throws Exception {
checkCountStar("ITEM", Load.ITEM_COUNT);
}
/**
* Test cardinality of NEWORDERS table
*
* @throws Exception
*/
public void testNewOrdersRows() throws Exception {
checkCountStar("NEWORDERS", Load.NEWORDERS_COUNT_W * scale);
}
/**
* Test cardinality of HISTORY table
*
* @throws Exception
*/
public void testHistoryRows() throws Exception {
checkCountStar("HISTORY", Load.HISTORY_COUNT_W * scale);
}
/**
* Test cardinality of ORDERLINE table
*
* @throws Exception
*/
public void testOrderLineRows() throws Exception {
checkWithinOnePercent("ORDERLINE", Load.ORDERLINE_COUNT_WV * scale);
}
/**
* Check if number of rows in table is as expected
*
* @param table -
* table on which to execute the query
* @param expected -
* expected number of rows
* @throws Exception
*/
private void checkCountStar(String table, int expected) throws Exception {
if( expected != rowsInTable(table))
errorHandler.handleCheckError("ERROR:Number of rows loaded for " + table +
" not correct, expected="+expected +" rows found="+
rowsInTable(table));
}
/**
* Return the number of rows in the table. A simple select count(*) from
* tableName
*
* @param tableName -
* name of the table
* @throws SQLException
*/
private int rowsInTable(String tableName) throws SQLException {
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT COUNT(*) FROM " + tableName);
rs.next();
int count = rs.getInt(1);
conn.commit();
rs.close();
stmt.close();
return count;
}
/**
* Check if number of rows in table is within one percent of expected value
*
* @param tableName -
* table on which to execute the query
* @param expected -
* expected number of rows
* @throws Exception
*/
private void checkWithinOnePercent(String tableName, int expected)
throws Exception {
double count = rowsInTable(tableName);
double low = ((double) expected) * 0.99;
double high = ((double) expected) * 1.01;
if ( (count < low) || (count >high))
errorHandler.handleCheckError("ERROR! Initial rows" + count + " in " +
tableName + " is out of range.[" + low + "-" + high + "]");
}
}
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