import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(\\d+:\\d+:\\d+\\.\\d+)\\s+(\\S+):\\s+(\\d+:\\d+:\\d+\\.\\d+)\\s+op:\\s+(\\S+)\\s+lun:\\s+(\\/\\S+\\/\\S+)\\s+lba:\\s+(\\d+)\\s+0x[0-9A-F]+\\s+xfer:\\s+(\\d+)\\s+errno:\\s+EIO:\\s+'I/O error'$";
final String string = "12:57:57.092 localhost-3: 12:57:57.049 op: write lun: /dev/sdd lba: 15229894656 0x38BC5C000 xfer: 8192 errno: EIO: 'I/O error'";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
if (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html