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package org.javacs;
import com.sun.source.util.*;
import java.net.URI;
import java.time.Duration;
import java.time.Instant;
import java.util.*;
import java.util.logging.Logger;
class Profiler implements TaskListener {
Set<URI> files = new HashSet<>();
Map<TaskEvent.Kind, Instant> started = new EnumMap<>(TaskEvent.Kind.class);
Map<TaskEvent.Kind, Duration> profile = new EnumMap<>(TaskEvent.Kind.class);
@Override
public void started(TaskEvent e) {
started.put(e.getKind(), Instant.now());
files.add(e.getSourceFile().toUri());
// TODO log file name when we compile something that wasn't in the batch
}
@Override
public void finished(TaskEvent e) {
var k = e.getKind();
var start = started.getOrDefault(k, Instant.now());
var elapsed = Duration.between(start, Instant.now());
var soFar = profile.getOrDefault(k, Duration.ZERO);
var total = soFar.plus(elapsed);
profile.put(k, total);
}
void print() {
var lines = new StringJoiner("; ");
for (var k : TaskEvent.Kind.values()) {
if (!profile.containsKey(k)) continue;
var elapsed = profile.get(k);
var s = elapsed.getSeconds() + elapsed.getNano() / 1000.0 / 1000.0 / 1000.0;
lines.add(String.format("%s: %.3fs", k, s));
}
// TODO log names if n is small
LOG.info(String.format("Compiled %d files: %s", files.size(), lines));
}
private static final Logger LOG = Logger.getLogger("main");
}
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