TotalFreedomMC/OpenInv
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For improved compatibility, our own Levenshtein implementation

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This commit is contained in:
Jikoo 2017-05-28 09:53:59 -04:00
parent 9a53e46dd3
commit 1c104b775f
1 changed files with 46 additions and 4 deletions
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50
plugin/plugin-core/src/main/java/com/lishid/openinv/OpenInv.java
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@ -85,8 +85,7 @@ public class OpenInv extends JavaPlugin implements IOpenInv {
&& OpenInv.this.enderChests.get(key).isInUse()
|| OpenInv.this.pluginUsage.containsKey(key);
}
},
new Function<Player>() {
}, new Function<Player>() {
@Override
public boolean run(final Player value) {
String key = OpenInv.this.playerLoader.getPlayerDataID(value);
@ -233,6 +232,50 @@ public class OpenInv extends JavaPlugin implements IOpenInv {
return this.inventoryAccess;
}
private int getLevenshteinDistance(final String string1, final String string2) {
if (string1 == null || string2 == null) {
throw new IllegalArgumentException("Strings must not be null");
}
if (string1.isEmpty()) {
return string2.length();
}
if (string2.isEmpty()) {
return string2.length();
}
if (string1.equals(string2)) {
return 0;
}
int len1 = string1.length();
int len2 = string2.length();
int[] prevDistances = new int[len1 + 1];
int[] distances = new int[len1 + 1];
for (int i = 0; i <= len1; ++i) {
prevDistances[i] = i;
}
for (int i = 1; i <= len2; ++i) {
// TODO: include tweaks available in Simmetrics?
char string2char = string2.charAt(i - 1);
distances[0] = i;
for (int j = 1; j <= len1; ++j) {
int cost = string1.charAt(j - 1) == string2char ? 0 : 1;
distances[j] = Math.min(Math.min(distances[j - 1] + 1, prevDistances[j] + 1), prevDistances[j - 1] + cost);
}
int[] swap = prevDistances;
prevDistances = distances;
distances = swap;
}
return prevDistances[len1];
}
@SuppressWarnings("unchecked")
public Collection<? extends Player> getOnlinePlayers() {
@ -444,8 +487,7 @@ public class OpenInv extends JavaPlugin implements IOpenInv {
continue;
}
// Compatibility: Lang3 is only bundled with 1.8+
int currentMatch = org.apache.commons.lang.StringUtils.getLevenshteinDistance(name, offline.getName());
int currentMatch = this.getLevenshteinDistance(name, offline.getName());
if (currentMatch == 0) {
return offline;