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src/Common/Utils/CommonUtils.java

@@ -17,6 +17,7 @@ import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Date;
 import java.util.Vector;
+import java.util.concurrent.Semaphore;
 import java.util.regex.Matcher;
 import java.util.stream.Collectors;
 public class CommonUtils {
@@ -26,7 +27,13 @@ public class CommonUtils {
     public static String Home;
     //ГЛОБАЛЬНЫЙ ЖУРНАЛ
     public static Loggable MainLog;
+    public static Semaphore date_semaphore = new Semaphore(1);
+    public static long last_ticks = CommonConstants.Nan;
     //------------------------------------------------------------------------
+    public static Object requireNonNullElse(Object value, Object default_value) {
+        return (value != null) ? value : default_value;
+    }
+    //--
     //JSON
     //--
     //    public static String jsonToPrettyFormat(String packed) {
@@ -401,7 +408,41 @@ public class CommonUtils {
     public static String print_date(Date date) {
         return new SimpleDateFormat("dd.MM.yyyy HH:mm:ss").format(date);
     }
-    //-
+    public static String printSplittedDateInterval(long milliseconds) {
+        //--
+        long seconds = milliseconds / 1000;
+        long hours = seconds / 3600;
+        seconds = seconds - hours * 3600;
+        long minutes = (seconds) / 60;
+        seconds = seconds - minutes * 60;
+        //--
+        return hours + " часов, " + minutes + " минут, " + seconds + " секунд";
+    }
+    //Синхронизация
+    public static void sleep(long millis) {
+        try {
+            Thread.sleep(millis);
+        } catch (Exception ignore) {
+        }
+    }
     //ГЕНЕРАЦИЯ ИМЕН
-
+    public static long getDateNumber() {
+        //-
+        try {
+            date_semaphore.acquire();
+        } catch (Exception ignore) {
+        }
+        //-
+        long ticks = new Date().toInstant().getEpochSecond();
+        while (ticks == last_ticks) {
+            sleep(1);
+            ticks = new Date().toInstant().getEpochSecond();
+        }
+        last_ticks = ticks;  // Это и есть разделяемый ресурс.
+        date_semaphore.release();
+        return ticks;
+    }
+    public static String getDateName(String name_) {
+        return name_ + "_" + getDateNumber();
+    }
 }