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Add lock.unlock() to finally clause in Counter

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It is good practice to unlock a lock in a finally clause.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=132302413
This commit is contained in:
shikhman 2016-09-06 03:49:40 -07:00 • committed by Ben McIlwain
parent dcb189943b
commit 93bf68039b
1 changed files with 9 additions and 9 deletions
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18
java/google/registry/monitoring/metrics/Counter.java
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@ -23,7 +23,6 @@ import com.google.common.util.concurrent.AtomicLongMap;
import com.google.common.util.concurrent.Striped;
import google.registry.monitoring.metrics.MetricSchema.Kind;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.locks.Lock;
import javax.annotation.concurrent.ThreadSafe;
@ -171,18 +170,19 @@ public final class Counter extends AbstractMetric<Long>
final void reset(Instant startTimestamp) {
// Lock the entire set of values so that all existing values will have a consistent timestamp
// after this call, without the possibility of interleaving with another reset() call.
Set<ImmutableList<String>> keys = values.asMap().keySet();
for (int i = 0; i < valueLocks.size(); i++) {
valueLocks.getAt(i).lock();
}
for (ImmutableList<String> labelValues : keys) {
this.values.put(labelValues, 0);
this.valueStartTimestamps.put(labelValues, startTimestamp);
}
for (int i = 0; i < valueLocks.size(); i++) {
valueLocks.getAt(i).unlock();
try {
for (ImmutableList<String> labelValues : values.asMap().keySet()) {
this.values.put(labelValues, 0);
this.valueStartTimestamps.put(labelValues, startTimestamp);
}
} finally {
for (int i = 0; i < valueLocks.size(); i++) {
valueLocks.getAt(i).unlock();
}
}
}