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SOLR-4616: Make HitRatio into a float in mbeans 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1478450 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Greg Bowyer 2013-05-02 17:11:26 +00:00
parent 7b90561178
commit e6bb37d297
1 changed files with 7 additions and 13 deletions
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20
solr/core/src/java/org/apache/solr/search/SolrCacheBase.java
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@ -18,6 +18,8 @@
package org.apache.solr.search;
import java.io.Serializable;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.net.URL;
import java.util.Map;
@ -90,21 +92,13 @@ public abstract class SolrCacheBase {
* Returns a "Hit Ratio" (ie: max of 1.00, not a percentage) suitable for
* display purposes.
*/
protected static String calcHitRatio(long lookups, long hits) {
if (lookups==0) return "0.00";
if (lookups==hits) return "1.00";
int hundredths = (int)(hits*100/lookups); // rounded down
if (hundredths < 10) return "0.0" + hundredths;
return "0." + hundredths;
/*** code to produce a percent, if we want it...
int ones = (int)(hits*100 / lookups);
int tenths = (int)(hits*1000 / lookups) - ones*10;
return Integer.toString(ones) + '.' + tenths;
***/
protected static float calcHitRatio(long lookups, long hits) {
return (lookups == 0) ? 0.0f :
BigDecimal.valueOf((double) hits / (double) lookups)
.setScale(2, RoundingMode.HALF_EVEN)
.floatValue();
}
public String getVersion() {
return SolrCore.version;
}