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Finished getSalesCrossTable method

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Signed-off-by: Jim Martens <github@2martens.de>
This commit is contained in:
Jim Martens
2017-07-03 17:46:28 +02:00
parent 3809749143
commit 69f4ac4024
1 changed files with 46 additions and 3 deletions
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49
07/src/de/dis2017/data/db/ORM.java
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@ -10,7 +10,9 @@ import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class ORM {
private Connection _connection;
@ -194,7 +196,7 @@ public class ORM {
// --- analysis part starts here
public List<Integer> getSalesCrossTable(int year) {
public Map<String,Map<String, Map<String, Integer>>> getSalesCrossTable(int year) {
String querySQL = "SELECT COUNT(s.ID) AS sales, a.NAME AS article, sh.CITY AS city, d.QUARTER AS quarter " +
"FROM VSISP12.SALES AS s, " +
"VSISP12.DATETABLE AS d, " +
@ -206,17 +208,58 @@ public class ORM {
"AND d.YEAR = " + year + " " +
"GROUP BY GROUPING SETS ( (), (sh.CITY), (a.NAME), (sh.CITY, a.NAME), " +
"(d.QUARTER, sh.CITY), (sh.CITY, a.NAME, d.QUARTER) )";
List<Integer> sales = new ArrayList<>();
Map<String,Map<String, Map<String, Integer>>> sales = new HashMap<>();
try {
PreparedStatement pstmt = _connection.prepareStatement(querySQL);
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
// TODO finish method
int salesnr = rs.getInt("sales");
String article = rs.getString("article");
String city = rs.getString("city");
int quarter = rs.getInt("quarter");
Map<String, Map<String, Integer>> timeMap;
if (city == null) {
timeMap = sales.getOrDefault("total", new HashMap<>());
}
else {
timeMap = sales.getOrDefault(city, new HashMap<>());
}
Map<String, Integer> productMap;
if (quarter == 0) {
productMap = timeMap.getOrDefault("total", new HashMap<>());
}
else {
productMap = timeMap.getOrDefault(String.valueOf(quarter), new HashMap<>());
}
// add specific sales number to product map
if (article == null) {
productMap.put("total", salesnr);
}
else {
productMap.put(article, salesnr);
}
// add product map to time map
if (quarter == 0) {
timeMap.put("total", productMap);
}
else {
timeMap.put(String.valueOf(quarter), productMap);
}
// add time map to sales map
if (city == null) {
sales.put("total", timeMap);
}
else {
sales.put(city, timeMap);
}
}
} catch (SQLException e) {
e.printStackTrace();