Author: asankha
Date: Sun May 6 09:37:48 2007
New Revision: 535635
URL: http://svn.apache.org/viewvc?view=rev&rev=535635
Log:
minor improvement to check if System.nanoTime() could be used to only once
Modified:
webservices/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/UUIDGenerator.java
Modified:
webservices/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/UUIDGenerator.java
URL:
http://svn.apache.org/viewvc/webservices/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/UUIDGenerator.java?view=diff&rev=535635&r1=535634&r2=535635
==============================================================================
---
webservices/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/UUIDGenerator.java
(original)
+++
webservices/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/UUIDGenerator.java
Sun May 6 09:37:48 2007
@@ -35,6 +35,7 @@
private static long incrementingValue = 0;
private static Random myRand = null;
+ private static boolean useNano = false;
/**
* MD5 a random string with localhost/date etc will return 128 bits
construct a string of 18
@@ -50,20 +51,26 @@
if (++incrementingValue >= Long.MAX_VALUE) {
incrementingValue = 0;
}
-
- try {
- if (System.class.getMethod("nanoTime", new Class[0]) != null) {
- return baseUUID + (System.nanoTime() + incrementingValue) +
- Integer.toString(myRand.nextInt());
- }
- } catch (NoSuchMethodException ignore) {}
- return baseUUID + (System.currentTimeMillis() + incrementingValue +
- Integer.toString(myRand.nextInt()));
+ if (useNano) {
+ return baseUUID + (System.nanoTime() + incrementingValue) +
+ Integer.toString(myRand.nextInt());
+ } else {
+
+ return baseUUID + (System.currentTimeMillis() + incrementingValue +
+ Integer.toString(myRand.nextInt()));
+ }
}
protected static String getInitialUUID() {
+
+ try {
+ if (System.class.getMethod("nanoTime", new Class[0]) != null) {
+ useNano = true;
+ }
+ } catch (NoSuchMethodException ignore) {}
+
if (myRand == null) {
myRand = new Random();
}
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