forked from elastic/elasticsearch
/
StoreRateLimiting.java
76 lines (59 loc) · 1.94 KB
/
StoreRateLimiting.java
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package org.apache.lucene.store;
import org.elasticsearch.ElasticSearchIllegalArgumentException;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.RateLimiter;
import org.elasticsearch.common.unit.ByteSizeValue;
/**
*/
public class StoreRateLimiting {
public static interface Provider {
StoreRateLimiting rateLimiting();
}
public interface Listener {
void onPause(long nanos);
}
public static enum Type {
NONE,
MERGE,
ALL;
public static Type fromString(String type) throws ElasticSearchIllegalArgumentException {
if ("none".equalsIgnoreCase(type)) {
return NONE;
} else if ("merge".equalsIgnoreCase(type)) {
return MERGE;
} else if ("all".equalsIgnoreCase(type)) {
return ALL;
}
throw new ElasticSearchIllegalArgumentException("rate limiting type [" + type + "] not valid, can be one of [all|merge|none]");
}
}
private final RateLimiter rateLimiter = new RateLimiter(0);
private volatile RateLimiter actualRateLimiter;
private volatile Type type;
public StoreRateLimiting() {
}
@Nullable
public RateLimiter getRateLimiter() {
return actualRateLimiter;
}
public void setMaxRate(ByteSizeValue rate) {
if (rate.bytes() <= 0) {
actualRateLimiter = null;
} else if (actualRateLimiter == null) {
actualRateLimiter = rateLimiter;
actualRateLimiter.setMaxRate(rate.mbFrac());
} else {
assert rateLimiter == actualRateLimiter;
rateLimiter.setMaxRate(rate.mbFrac());
}
}
public Type getType() {
return type;
}
public void setType(Type type) {
this.type = type;
}
public void setType(String type) throws ElasticSearchIllegalArgumentException {
this.type = Type.fromString(type);
}
}