/
VersionTracker.java
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/
VersionTracker.java
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package com.netflix.evcache.version;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.netflix.evcache.metrics.EVCacheMetricsFactory;
import com.netflix.evcache.pool.EVCacheClientPoolManager;
import com.netflix.spectator.api.BasicTag;
import com.netflix.spectator.api.Tag;
import javax.inject.Inject;
import javax.inject.Singleton;
@Singleton
public class VersionTracker implements Runnable {
private static final Logger log = LoggerFactory.getLogger(VersionTracker.class);
private AtomicLong versionGauge;
private EVCacheClientPoolManager poolManager;
@Inject
public VersionTracker(EVCacheClientPoolManager poolManager) {
this.poolManager = poolManager;
poolManager.getEVCacheScheduledExecutor().schedule(this, 30, TimeUnit.SECONDS);
}
public void run() {
// init the version information
if(versionGauge == null) {
final String fullVersion;
final String jarName;
if(this.getClass().getPackage().getImplementationVersion() != null) {
fullVersion = this.getClass().getPackage().getImplementationVersion();
} else {
fullVersion = "unknown";
}
if(this.getClass().getPackage().getImplementationVersion() != null) {
jarName = this.getClass().getPackage().getImplementationTitle();
} else {
jarName = "unknown";
}
if(log.isInfoEnabled()) log.info("fullVersion : " + fullVersion + "; jarName : " + jarName);
final List<Tag> tagList = new ArrayList<Tag>(3);
tagList.add(new BasicTag("version", fullVersion));
tagList.add(new BasicTag("jarName", jarName));
versionGauge = EVCacheMetricsFactory.getInstance().getLongGauge("evcache-client", tagList);
}
versionGauge.set(Long.valueOf(1));
poolManager.getEVCacheScheduledExecutor().schedule(this, 30, TimeUnit.SECONDS);
}
@Override
public int hashCode() {
return getClass().hashCode();
}
@Override
public boolean equals(Object obj) {
return (obj != null) && (obj.getClass() == getClass());
}
}