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SOLR-2275: mm param parsing optimization 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1052299 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yonik Seeley 2010-12-23 15:23:18 +00:00
parent f9854132c6
commit 9c61ecdef7
1 changed files with 17 additions and 10 deletions
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27
solr/src/java/org/apache/solr/util/SolrPluginUtils.java
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@ -608,21 +608,27 @@ public class SolrPluginUtils {
}
}
// private static Pattern spaceAroundLessThanPattern = Pattern.compile("\\s*<\\s*");
private static Pattern spaceAroundLessThanPattern = Pattern.compile("(\\s+<)|(<\\s+)|(\\s+<\\s+)");
private static Pattern spacePattern = Pattern.compile(" ");
private static Pattern lessThanPattern = Pattern.compile("<");
/**
* helper exposed for UnitTests
* @see #setMinShouldMatch
*/
static int calculateMinShouldMatch(int optionalClauseCount, String specIn) {
static int calculateMinShouldMatch(int optionalClauseCount, String spec) {
int result = optionalClauseCount;
spec = spec.trim();
String spec = specIn.replaceAll("\\s*<\\s*", "<");
if (-1 < spec.indexOf("<")) {
/* we have conditional spec(s) */
spec = spaceAroundLessThanPattern.matcher(spec).replaceAll("<");
for (String s : spec.trim().split(" ")) {
String[] parts = s.split("<");
int upperBound = (new Integer(parts[0].trim())).intValue();
for (String s : spacePattern.split(spec)) {
String[] parts = lessThanPattern.split(s);
int upperBound = Integer.parseInt(parts[0]);
if (optionalClauseCount <= upperBound) {
return result;
} else {
@ -635,13 +641,14 @@ public class SolrPluginUtils {
/* otherwise, simple expresion */
if (-1 < spec.indexOf("%")) {
/* percentage */
int percent = new Integer(spec.trim().replace("%","")).intValue();
float calc = (result * percent) / 100f;
if (-1 < spec.indexOf('%')) {
/* percentage - assume the % was the last char. If not, let Integer.parseInt fail. */
spec = spec.substring(0,spec.length()-1);
int percent = Integer.parseInt(spec);
float calc = (result * percent) * (1/100f);
result = calc < 0 ? result + (int)calc : (int)calc;
} else {
int calc = (new Integer(spec.trim())).intValue();
int calc = Integer.parseInt(spec);
result = calc < 0 ? result + calc : calc;
}