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[serial] Use a fast path to avoid pattern matching (#4255)

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Signed-off-by: Jörg Sautter <joerg.sautter@gmx.net>
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joerg1985 2024-05-28 23:53:02 +02:00 committed by GitHub
parent a5a7eee9a8
commit 9068ab2fac
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1 changed files with 4 additions and 1 deletions
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bundles/org.openhab.core.config.discovery.usbserial.linuxsysfs/src/main/java/org/openhab/core/config/discovery/usbserial/linuxsysfs/internal/SysfsUsbSerialScanner.java
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@ -222,7 +222,10 @@ public class SysfsUsbSerialScanner implements UsbSerialScanner {
* of a USB device.
*/
private @Nullable Path getUsbInterfaceParentPath(Path sysfsPath) {
if (sysfsPath.getFileName() == null) {
if (sysfsPath.toString().indexOf('-') == -1) {
// a fast path to avoid pattern matching for dozens of not matching directories
return null;
} else if (sysfsPath.getFileName() == null) {
return null;
} else if (SYSFS_USB_INTERFACE_DIRECTORY_PATTERN.matcher(sysfsPath.getFileName().toString()).matches()) {
return sysfsPath;