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Reduce block properties parsing allocation

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themode 2022-01-15 19:52:50 +01:00
parent 51abd95bcb
commit 0163dd6f42
1 changed files with 10 additions and 12 deletions
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22
src/main/java/net/minestom/server/utils/block/BlockUtils.java
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@ -56,26 +56,24 @@ public class BlockUtils {
public static Map<String, String> parseProperties(String query) {
if (!query.startsWith("[") || !query.endsWith("]")) return Map.of();
final String propertiesString = query.substring(1, query.length() - 1).trim();
if (propertiesString.isEmpty()) return Map.of();
if (query.length() == 2) return Map.of();
final int entries = StringUtils.countMatches(propertiesString, ',') + 1;
final int entries = StringUtils.countMatches(query, ',') + 1;
assert entries > 0;
String[] keys = new String[entries];
String[] values = new String[entries];
int entryCount = 0;
final int length = propertiesString.length();
int start = 0;
int index = 0;
final int length = query.length() - 1;
int start = 1;
int index = 1;
while (index < length) {
if (propertiesString.charAt(index) == ',' || index == length - 1) {
if (query.charAt(index) == ',' || index == length - 1) {
if (index + 1 == length) index++;
final String property = propertiesString.substring(start, index).replace(',', '\0');
final int equalIndex = property.indexOf('=');
if (equalIndex != -1) {
final String key = property.substring(0, equalIndex).trim();
final String value = property.substring(equalIndex + 1).trim();
final int equalIndex = query.indexOf('=', start);
if (equalIndex != -1 && equalIndex < index) {
final String key = query.substring(start, equalIndex).trim();
final String value = query.substring(equalIndex + 1, index).trim();
keys[entryCount] = key.intern();
values[entryCount++] = value.intern();
}