Java Utililty Methods AtomicLong

List of utility methods to do AtomicLong

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Description

The list of methods to do AtomicLong are organized into topic(s).

Method

longgetNowMicrosUtc()
Return wall clock time, in microseconds since Unix Epoch (1/1/1970 UTC midnight). 
long now = System.currentTimeMillis() * 1000;
long time = PREVIOUS_TIME_VALUE.getAndIncrement();
if (now > time) {
    PREVIOUS_TIME_VALUE.compareAndSet(time + 1, now);
    return PREVIOUS_TIME_VALUE.getAndIncrement();
return time;
longgetRAMUniqueID()
a simple counter which is garanteed to be unique ONLY within one instance of a virtual machine. 
return ramid.incrementAndGet();
StringgetRandomTopicName()
get Random Topic Name 
return "ut_topic_" + System.currentTimeMillis() + "_" + counter.addAndGet(1);
StringgetSequenceNumber()
get Sequence Number 
long id = atomicLong.addAndGet(1);
return String.valueOf(id);
StringgetTempDirName()
Return a string which can be used to create a directory in the temporary workspace of whatever is the meaning of the temp space in the present execution environment. 
return tmpDirPath + uniqueId.incrementAndGet();
longgetTomorrowTime()
Returns the first millisecond of tomorrow. 
final long current = System.currentTimeMillis();
synchronized (TOMORROW) {
    if (current > TOMORROW.get()) {
        GregorianCalendar cal = new GregorianCalendar();
        cal.add(Calendar.DATE, 1);
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
...
StringgetTrackedAllocationStatus()
get Tracked Allocation Status 
long directByteBufferUsage = DIRECT_BYTE_BUFFER_USAGE.get();
long mmapBufferUsage = MMAP_BUFFER_USAGE.get();
return "direct " + (directByteBufferUsage / BYTES_IN_MEGABYTE) + " MB, mmap "
        + (mmapBufferUsage / BYTES_IN_MEGABYTE) + " MB, total "
        + ((directByteBufferUsage + mmapBufferUsage) / BYTES_IN_MEGABYTE) + " MB";
StringgetUniqueURIString()
Returns a URI unique within a test run. 
return "http://example.com/" + Long.toString(uriCounter.incrementAndGet());
voidgreaterAndSet(long value, AtomicLong atomicValue)
greater And Set 
synchronized (atomicValue) {
    if (value > atomicValue.get())
        atomicValue.set(value);
booleanisAtomicLong(final N number)
Check if the number is an AtomicLong 
return isNumberType(number, AtomicLong.class);