@Test
public void testAcquireAndGet()
throws IOException, ClassNotFoundException, IllegalAccessException, InstantiationException {
int entries = 1000 * 1000;
SharedHashMap<CharSequence, LongValue> map = getSharedMap(entries, 128, 24);
LongValue value = new LongValueNative();
LongValue value2 = new LongValueNative();
LongValue value3 = new LongValueNative();
for (int j = 1; j <= 3; j++) {
for (int i = 0; i < entries; i++) {
CharSequence userCS = getUserCharSequence(i);
if (j > 1) {
assertNotNull(map.getUsing(userCS, value));
} else {
map.acquireUsing(userCS, value);
}
assertEquals(j - 1, value.getValue());
value.addAtomicValue(1);
assertEquals(value2, map.acquireUsing(userCS, value2));
assertEquals(j, value2.getValue());
assertEquals(value3, map.getUsing(userCS, value3));
assertEquals(j, value3.getValue());
}
}
map.close();
}
@Override
public void run() {
try {
LongValue value = new LongValueNative();
barrier.await();
for (int i = 0; i < iterations; i++) {
map.acquireUsing(key, value);
value.addAtomicValue(1);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Test
public void testAcquireFromMultipleThreads() throws Exception {
SharedHashMap<CharSequence, LongValue> map = getSharedMap(1000 * 1000, 128, 24);
CharSequence key = getUserCharSequence(0);
map.acquireUsing(key, new LongValueNative());
int iterations = 1000;
int noOfThreads = 10;
CyclicBarrier barrier = new CyclicBarrier(noOfThreads);
Thread[] threads = new Thread[noOfThreads];
for (int t = 0; t < noOfThreads; t++) {
threads[t] = new Thread(new IncrementRunnable(map, key, iterations, barrier));
threads[t].start();
}
for (int t = 0; t < noOfThreads; t++) {
threads[t].join();
}
assertEquals(noOfThreads * iterations, map.acquireUsing(key, new LongValueNative()).getValue());
map.close();
}
@Test
public void testGetWithNullContainer() throws Exception {
SharedHashMap<CharSequence, LongValue> map = getSharedMap(10 * 1000, 128, 24);
map.acquireUsing("key", new LongValueNative());
assertEquals(0, map.getUsing("key", null).getValue());
}
@Test
public void testAcquireWithNullKey() throws Exception {
SharedHashMap<CharSequence, LongValue> map = getSharedMap(10 * 1000, 128, 24);
assertNull(map.acquireUsing(null, new LongValueNative()));
}