/** Load data. */
private ArrayList loadData() {
try {
ArrayList vos = new ArrayList();
BufferedReader br =
new BufferedReader(new InputStreamReader(new FileInputStream("orders.txt")));
String line = null;
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
OrdersVO vo = null;
String[] t = null;
while ((line = br.readLine()) != null) {
t = line.split(";");
vo = new OrdersVO();
vos.add(vo);
vo.setOrderDate(sdf.parse(t[0]));
vo.setCategory(t[1]);
vo.setSubCategory(t[2]);
vo.setCountry(t[3]);
vo.setZone(t[4]);
vo.setAgent(t[5]);
vo.setItem(t[6]);
vo.setSellQty(new BigDecimal(t[7]));
vo.setSellAmount(new BigDecimal(t[8]));
}
br.close();
return vos;
} catch (Exception ex) {
ex.printStackTrace();
return new ArrayList();
}
}
/** Create data. */
private void createData() {
try {
String[] categories = new String[] {"Hardware", "Software"};
String[][] subCategories =
new String[][] {
{"PC", "Monitor", "Printer"},
{"O.S.", "IDEs", "Office Appl.", "Database", "Games", "Other SW"}
};
String[] agents = new String[] {"Agent 1", "Agent 2", "Agent 3"};
String[] countries = new String[] {"Italy", "France", "Germany", "Other"};
String[][] zones =
new String[][] {
{"North Italy", "Center Italy", "South Italy"},
{"Paris", "Outside Paris"},
{"East", "West"},
{"Iberica Peninsula", "U.K. & Ireland", "Be.Ne.Lux.", "East Europe"}
};
HashMap items = new HashMap();
items.put("PC", new String[] {"Dell", "HP"});
items.put("Monitor", new String[] {"LG", "Sony", "Philips"});
items.put("Printer", new String[] {"HP", "Epson"});
items.put("O.S.", new String[] {"Windows", "Linux", "Mac"});
items.put("IDEs", new String[] {"JBuilder", "IBM RAD", "MS Visual Studio .NET"});
items.put("Office Appl.", new String[] {"MS Office 2007", "Open Office"});
items.put("Database", new String[] {"Oracle", "MS SQLServer", "Sybase", "IBM DB2"});
items.put("Games", new String[] {"Need4Speed", "Fifa"});
items.put("Other SW", new String[] {"Norton AV", "Photoshop"});
FileOutputStream out = new FileOutputStream("orders.txt");
String line = null;
int i = 0;
Calendar cal = Calendar.getInstance();
cal.set(cal.YEAR, 2007);
cal.set(cal.MONTH, 0);
cal.set(cal.DAY_OF_MONTH, 1);
cal.set(cal.HOUR_OF_DAY, 0);
cal.set(cal.MINUTE, 0);
cal.set(cal.SECOND, 0);
cal.set(cal.MILLISECOND, 0);
long t = cal.getTimeInMillis();
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
String date = null;
int maxRows = 2000000;
String[] ii = null;
String[] sub = null;
String[] z = null;
do {
date = sdf.format(new java.util.Date(t));
for (int k1 = 0; k1 < categories.length; k1++) {
sub = subCategories[k1];
for (int k2 = 0; k2 < sub.length; k2++) {
if (i >= maxRows) break;
for (int k3 = 0; k3 < countries.length; k3++) {
z = zones[k3];
for (int k4 = 0; k4 < z.length; k4++)
for (int k5 = 0; k5 < agents.length; k5++) {
if (i >= maxRows) break;
ii = (String[]) items.get(sub[k2]);
for (int k6 = 0; k6 < ii.length; k6++) {
if (i >= maxRows) break;
line =
date
+ ";"
+ categories[k1]
+ ";"
+ sub[k2]
+ ";"
+ countries[k3]
+ ";"
+ z[k4]
+ ";"
+ agents[k5]
+ ";"
+ ii[k6]
+ ";"
+ new BigDecimal(Math.random() * 10)
.setScale(0, BigDecimal.ROUND_HALF_UP)
+ ";"
+ new BigDecimal(Math.random() * 1000)
.setScale(2, BigDecimal.ROUND_HALF_UP)
+ ";"
+ "\n";
out.write(line.getBytes());
out.flush();
i++;
}
}
}
}
}
t += 86400000;
} while (i < maxRows);
out.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}