@Test
public void performanceOfTabSplit() throws Exception {
StopWatch s = new StopWatch();
String line = null;
final int N = 1;
Pattern p = Pattern.compile("\t");
s.reset();
for (int i = 0; i < N; i++) {
BufferedReader br =
new BufferedReader(
new InputStreamReader(
FileResource.find(SilkWalkerTest.class, "scaffold1.silk").openStream()));
while ((line = br.readLine()) != null) {
String[] tab = p.split(line);
}
}
_logger.info("default tab split:" + s.getElapsedTime());
s.reset();
for (int i = 0; i < N; i++) {
BufferedReader br =
new BufferedReader(
new InputStreamReader(
FileResource.find(SilkWalkerTest.class, "scaffold1.silk").openStream()));
while ((line = br.readLine()) != null) {
ArrayList<String> tokens = StringUtil.splitAtTab(line);
}
}
_logger.info("my tab split:" + s.getElapsedTime());
s.reset();
for (int i = 0; i < N; i++) {
BufferedReader br =
new BufferedReader(
new InputStreamReader(
FileResource.find(SilkWalkerTest.class, "scaffold1.silk").openStream()));
while ((line = br.readLine()) != null) {
StringTokenizer t = new StringTokenizer(line, "\t");
ArrayList<String> tokens = new ArrayList<String>();
while (t.hasMoreTokens()) {
tokens.add(t.nextToken());
}
}
}
_logger.info("tokenizer tab split:" + s.getElapsedTime());
s.reset();
for (int i = 0; i < N; i++) {
FastBufferedReader fb =
new FastBufferedReader(
new InputStreamReader(
FileResource.find(SilkWalkerTest.class, "scaffold1.silk").openStream()));
while ((line = fb.readLine()) != null) {
ArrayList<String> tab = StringUtil.splitAtTab(line);
}
}
_logger.info("fast reader:" + s.getElapsedTime());
}
