private Delta<?> calculateDelta(Metric<?> value) {
long delta = value.getValue().longValue();
Long old = this.counts.replace(value.getName(), delta);
if (old != null) {
delta = delta - old;
} else {
this.counts.putIfAbsent(value.getName(), delta);
}
return new Delta<Long>(value.getName(), delta, value.getTimestamp());
}
@Override
public void set(String group, Collection<Metric<?>> values) {
String prefix = group;
if (!prefix.endsWith(".")) {
prefix = prefix + ".";
}
for (Metric<?> metric : values) {
if (!metric.getName().startsWith(prefix)) {
metric =
new Metric<Number>(prefix + metric.getName(), metric.getValue(), metric.getTimestamp());
}
set(metric);
}
this.groups.add(group);
}
@Test
public void testMetrics() throws Exception {
InMemoryRichGaugeRepository repository = new InMemoryRichGaugeRepository();
repository.set(new Metric<Double>("a", 0.d, new Date()));
repository.set(new Metric<Double>("a", 0.5d, new Date()));
RichGaugeReaderPublicMetrics metrics = new RichGaugeReaderPublicMetrics(repository);
Map<String, Metric<?>> results = new HashMap<String, Metric<?>>();
for (Metric<?> metric : metrics.metrics()) {
results.put(metric.getName(), metric);
}
assertThat(results.containsKey("a.val")).isTrue();
assertThat(results.get("a.val").getValue().doubleValue()).isEqualTo(0.5d);
assertThat(results.containsKey("a.avg")).isTrue();
assertThat(results.get("a.avg").getValue().doubleValue()).isEqualTo(0.25d);
assertThat(results.containsKey("a.min")).isTrue();
assertThat(results.get("a.min").getValue().doubleValue()).isEqualTo(0.0d);
assertThat(results.containsKey("a.max")).isTrue();
assertThat(results.get("a.max").getValue().doubleValue()).isEqualTo(0.5d);
assertThat(results.containsKey("a.count")).isTrue();
assertThat(results.get("a.count").getValue().longValue()).isEqualTo(2L);
assertThat(results.containsKey("a.alpha")).isTrue();
assertThat(results.get("a.alpha").getValue().doubleValue()).isEqualTo(-1.d);
}
private boolean isMatch(Metric<?> metric) {
String[] includes = MetricCopyExporter.this.includes;
String[] excludes = MetricCopyExporter.this.excludes;
String name = metric.getName();
if (ObjectUtils.isEmpty(includes) || PatternMatchUtils.simpleMatch(includes, name)) {
return !PatternMatchUtils.simpleMatch(excludes, name);
}
return false;
}
@Test
public void prefixWithPeriod() {
this.repository.increment(new Delta<Number>("foo.bar", 1));
Set<String> names = new HashSet<String>();
for (Metric<?> metric : this.repository.findAll("foo.")) {
names.add(metric.getName());
}
assertThat(names).hasSize(1);
assertThat(names.contains("foo.bar")).isTrue();
}
@Override
protected void write(String group, Collection<Metric<?>> values) {
for (Metric<?> value : values) {
if (value.getName().startsWith("counter.") && this.counter != null) {
this.counter.increment(calculateDelta(value));
} else {
this.writer.set(value);
}
}
}
@Test
public void onlyRegisteredPrefixCounted() {
this.repository.increment(new Delta<Number>("foo.bar", 1));
this.repository.increment(new Delta<Number>("foobar.spam", 1));
Set<String> names = new HashSet<String>();
for (Metric<?> metric : this.repository.findAll("foo")) {
names.add(metric.getName());
}
assertThat(names).hasSize(1);
assertThat(names.contains("foo.bar")).isTrue();
}
@Test
public void testMetrics() throws Exception {
InMemoryMetricRepository repository = new InMemoryMetricRepository();
repository.set(new Metric<Double>("a", 0.5, new Date()));
VanillaPublicMetrics publicMetrics = new VanillaPublicMetrics(repository);
Map<String, Metric<?>> results = new HashMap<String, Metric<?>>();
for (Metric<?> metric : publicMetrics.metrics()) {
results.put(metric.getName(), metric);
}
assertThat(results.get("a").getValue().doubleValue(), equalTo(0.5));
}
@Test
public void incrementGroup() {
this.repository.increment("foo", new Delta<Number>("foo.bar", 1));
this.repository.increment("foo", new Delta<Number>("foo.bar", 2));
this.repository.increment("foo", new Delta<Number>("foo.spam", 1));
Set<String> names = new HashSet<String>();
for (Metric<?> metric : this.repository.findAll("foo")) {
names.add(metric.getName());
}
assertThat(names).hasSize(2);
assertThat(names.contains("foo.bar")).isTrue();
assertThat(this.repository.findOne("foo.bar").getValue()).isEqualTo(3L);
}
@Test
public void testAdditionalMetrics() throws Exception {
InMemoryMetricRepository repository = new InMemoryMetricRepository();
Collection<PublicMetrics> allMetrics = new ArrayList<PublicMetrics>();
allMetrics.add(new ImmutablePublicMetrics(new Metric<Number>("first", 2L)));
allMetrics.add(new ImmutablePublicMetrics(new Metric<Number>("second", 4L)));
VanillaPublicMetrics publicMetrics = new VanillaPublicMetrics(repository, allMetrics);
Map<String, Metric<?>> results = new HashMap<String, Metric<?>>();
for (Metric<?> metric : publicMetrics.metrics()) {
results.put(metric.getName(), metric);
}
assertTrue(results.containsKey("first"));
assertTrue(results.containsKey("second"));
assertEquals(2, results.size());
}
@Override
public void set(Metric<?> value) {
this.metrics.set(value.getName(), value);
}