X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils%2Fsrc%2Forg%2Fsimantics%2Futils%2Flogging%2FTimeLogger.java;fp=bundles%2Forg.simantics.utils%2Fsrc%2Forg%2Fsimantics%2Futils%2Flogging%2FTimeLogger.java;h=b457e43418fe282998eebb6cdbce75cd71588092;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.utils/src/org/simantics/utils/logging/TimeLogger.java b/bundles/org.simantics.utils/src/org/simantics/utils/logging/TimeLogger.java
new file mode 100644
index 000000000..b457e4341
--- /dev/null
+++ b/bundles/org.simantics.utils/src/org/simantics/utils/logging/TimeLogger.java
@@ -0,0 +1,53 @@
+package org.simantics.utils.logging;
+
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+
+public class TimeLogger {
+    public static final boolean TIME_LOGGING_ENABLED = false;
+    
+    private static final NumberFormat TIME_FORMAT = new DecimalFormat("0.000");
+    
+    private static long BEGIN_TIME = System.nanoTime();
+    
+    private static void printCurrentTime() {
+        double time = (System.nanoTime() - BEGIN_TIME) * 1e-9;
+        System.out.print("[");
+        System.out.print(TIME_FORMAT.format(time));
+        System.out.print(" s] ");
+    }
+    
+    public static void resetTimeAndLog(String message) {
+        if(TIME_LOGGING_ENABLED) {
+            BEGIN_TIME = System.nanoTime();
+            printCurrentTime();
+            System.out.print(message);
+            System.out.print(" ");
+            for(int i=0;i<140-message.length();++i)
+                System.out.print("=");
+            System.out.println();
+        }
+    }
+    
+    public static void resetTimeAndLog(Class<?> clazz, String method) {
+        if(TIME_LOGGING_ENABLED)
+            resetTimeAndLog(clazz.getSimpleName() + "." + method);
+    }
+    
+    public static void resetTime() {
+        if(TIME_LOGGING_ENABLED)
+            BEGIN_TIME = System.nanoTime();
+    }
+    
+    public static void log(String message) {
+        if(TIME_LOGGING_ENABLED) {
+            printCurrentTime();
+            System.out.println(message);
+        }
+    }
+    
+    public static void log(Class<?> clazz, String method) {
+        if(TIME_LOGGING_ENABLED)
+            log(clazz.getSimpleName() + "." + method);
+    }
+}