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1 package jimm.datavision.testdata;
2 import java.io.*;
3 import java.util.ArrayList  ;
4 import java.util.Iterator ;
5
6 public class AggregateTestData {
7
8 protected String col1;
9 protected String col2;
10 protected int value;
11
12 public static Iterator aggregateTestData(String filePath) {
13 ArrayList data = new ArrayList ();
14 try {
15 BufferedReader in =
16 new BufferedReader(new FileReader(filePath));
17 String line;
18 while ((line = in.readLine()) != null) {
19 int pos1 = line.indexOf(',');
20 int pos2 = line.indexOf(',', pos1+1);
21 String col1 = line.substring(0, pos1);
22 String col2 = line.substring(pos1 + 1, pos2);
23 int value = Integer.parseInt(line.substring(pos2 + 1));
24 data.add(new AggregateTestData(col1, col2, value));
25 }
26 }
27 catch (IOException ioe) {
28 System.err.println(ioe);
29 }
30 return data.iterator();
31 }
32
33 public AggregateTestData(String c1, String c2, int v) {
34 col1 = c1;
35 col2 = c2;
36 value = v;
37 }
38
39 public String col1() { return col1; }
40 public String col2() { return col2; }
41 public int value() { return value; }
42
43 public static void main(String [] args) {
44 Iterator iter = AggregateTestData.aggregateTestData("aggregate_test.dat");
45 while (iter.hasNext()) {
46 AggregateTestData data = (AggregateTestData)iter.next();
47 System.out.println(data.col1 + ", " + data.col2 + ", " + data.value);
48 }
49 }
50
51 }
52 |
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