public void run() { try { while (!stopped && !Thread.currentThread().isInterrupted()) { MapHost host = null; try { // If merge is on, block merger.waitForInMemoryMerge(); // Get a host to shuffle from host = scheduler.getHost(); metrics.threadBusy(); // Shuffle copyFromHost(host); } finally { if (host != null) { scheduler.freeHost(host); metrics.threadFree(); } } } } catch (InterruptedException ie) { return; } catch (Throwable t) { shuffle.reportException(t); } }
public static void main(String[] argv) { String[] arr = {"hello", "world", "Beijing", "C++", "Python", "Java", "java"}; Shuffle.shuffleArr(arr); for (String s : arr) { System.out.println(s); } }