fix(bqjdbc): optimize formatter in BigQueryJdbcRootLogger

Author: Neenu1995

java-bigquery/google-cloud-bigquery-jdbc/src/main/java/com/google/cloud/bigquery/jdbc/BigQueryJdbcRootLogger.java

@@ -19,16 +19,12 @@
 import com.google.common.base.Strings;
 import java.io.IOException;
 import java.lang.management.ManagementFactory;
-import java.time.Instant;
-import java.time.ZoneId;
-import java.time.format.DateTimeFormatter;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
 import java.text.SimpleDateFormat;
 import java.util.Date;
-import java.util.Optional;
 import java.util.logging.ConsoleHandler;
 import java.util.logging.FileHandler;
 import java.util.logging.Formatter;
@@ -92,33 +88,33 @@ public static Formatter getFormatter() {
       @Override
       public String format(LogRecord record) {
         String date = dateFormatter.get().format(new Date(record.getMillis()));
-        
+
         long threadId = record.getThreadID();
         String threadName = getThreadName(threadId);
 
         if (threadName.length() > MAX_THREAD_NAME_LENGTH) {
           threadName = threadName.substring(threadName.length() - MAX_THREAD_NAME_LENGTH);
         }
-        
+
         String sourceClassName = record.getLoggerName();
         String sourceMethodName = record.getSourceMethodName();
-        
+
         StringBuilder sb = new StringBuilder(256);
         sb.append(date)
-          .append(" ")
-          .append(Strings.padStart(record.getLevel().getName(), 5, ' '))
-          .append(" ")
-          .append(PROCESS_ID)
-          .append(" --- [")
-          .append(Strings.padEnd(threadName, 7, ' '))
-          .append("] ")
-          .append(Strings.padEnd(sourceClassName != null ? sourceClassName : "", 50, ' '))
-          .append(" ")
-          .append(Strings.padEnd(sourceMethodName != null ? sourceMethodName : "", 20, ' '))
-          .append(": ")
-          .append(record.getMessage())
-          .append(System.lineSeparator());
-          
+            .append(" ")
+            .append(Strings.padStart(record.getLevel().getName(), 5, ' '))
+            .append(" ")
+            .append(PROCESS_ID)
+            .append(" --- [")
+            .append(Strings.padEnd(threadName, 7, ' '))
+            .append("] ")
+            .append(Strings.padEnd(sourceClassName != null ? sourceClassName : "", 50, ' '))
+            .append(" ")
+            .append(Strings.padEnd(sourceMethodName != null ? sourceMethodName : "", 20, ' '))
+            .append(": ")
+            .append(record.getMessage())
+            .append(System.lineSeparator());
+
         return sb.toString();
       }
     };

java-bigquery/google-cloud-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/BigQueryJdbcRootLoggerTest.java

@@ -50,12 +50,12 @@ public void testGetFormatterFormat() {
   public void testThreadNameTruncation() {
     Formatter formatter = BigQueryJdbcRootLogger.getFormatter();
     LogRecord record = new LogRecord(Level.INFO, "Test message");
-    
+
     String formatted = formatter.format(record);
     int startIndex = formatted.indexOf("--- [") + 5;
     int endIndex = formatted.indexOf("]", startIndex);
     String threadPart = formatted.substring(startIndex, endIndex).trim();
-    
+
     assertTrue(threadPart.length() <= 15);
   }