@Test
public void testValidateConnectionStale() throws Exception {
final HttpConnection conn = Mockito.mock(HttpConnection.class);
Mockito.when(conn.isOpen()).thenReturn(true);
Mockito.when(conn.isStale()).thenReturn(false);
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 10);
pool.setValidateAfterInactivity(5);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final LocalPoolEntry entry1 = future1.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry1);
pool.release(entry1, true);
Thread.sleep(10);
Mockito.verify(connFactory, Mockito.times(1)).create("somehost");
Mockito.when(conn.isStale()).thenReturn(true);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final LocalPoolEntry entry2 = future2.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry2);
Assert.assertNotSame(entry1, entry2);
Mockito.verify(conn, Mockito.times(1)).isStale();
Mockito.verify(conn, Mockito.times(1)).close();
Mockito.verify(connFactory, Mockito.times(2)).create("somehost");
}
@Test
public void testLeaseCancel() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1);
final LocalConnPool pool = new LocalConnPool(connFactory, 1, 1);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final GetPoolEntryThread t1 = new GetPoolEntryThread(future1);
t1.start();
t1.join(GRACE_PERIOD);
Assert.assertTrue(future1.isDone());
final LocalPoolEntry entry1 = t1.getEntry();
Assert.assertNotNull(entry1);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final GetPoolEntryThread t2 = new GetPoolEntryThread(future2);
t2.start();
Thread.sleep(5);
Assert.assertFalse(future2.isDone());
Assert.assertFalse(future2.isCancelled());
future2.cancel(true);
t2.join(GRACE_PERIOD);
Assert.assertTrue(future2.isDone());
Assert.assertTrue(future2.isCancelled());
future2.cancel(true);
future2.cancel(true);
}
@Test
public void testCreateNewIfExpired() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 2);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final LocalPoolEntry entry1 = future1.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry1);
Mockito.verify(connFactory, Mockito.times(1)).create(Mockito.eq("somehost"));
entry1.updateExpiry(1, TimeUnit.MILLISECONDS);
pool.release(entry1, true);
Thread.sleep(200L);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final LocalPoolEntry entry2 = future2.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry2);
Mockito.verify(connFactory, Mockito.times(2)).create(Mockito.eq("somehost"));
final PoolStats totals = pool.getTotalStats();
Assert.assertEquals(0, totals.getAvailable());
Assert.assertEquals(1, totals.getLeased());
Assert.assertEquals(Collections.singleton("somehost"), pool.getRoutes());
final PoolStats stats = pool.getStats("somehost");
Assert.assertEquals(0, stats.getAvailable());
Assert.assertEquals(1, stats.getLeased());
}
@Test
public void testShutdown() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1);
final HttpConnection conn2 = Mockito.mock(HttpConnection.class);
Mockito.when(conn2.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("otherhost"))).thenReturn(conn2);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 2);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final LocalPoolEntry entry1 = future1.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry1);
final Future<LocalPoolEntry> future2 = pool.lease("otherhost", null);
final LocalPoolEntry entry2 = future2.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry2);
pool.release(entry2, true);
final PoolStats totals = pool.getTotalStats();
Assert.assertEquals(1, totals.getAvailable());
Assert.assertEquals(1, totals.getLeased());
pool.shutdown();
Assert.assertTrue(pool.isShutdown());
pool.shutdown();
pool.shutdown();
Mockito.verify(conn1, Mockito.atLeastOnce()).close();
Mockito.verify(conn2, Mockito.atLeastOnce()).close();
try {
pool.lease("somehost", null);
Assert.fail("IllegalStateException should have been thrown");
} catch (final IllegalStateException expected) {
}
// Ignored if shut down
pool.release(new LocalPoolEntry("somehost", Mockito.mock(HttpConnection.class)), true);
}
@Test
public void testCloseExpired() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(Boolean.FALSE);
final HttpConnection conn2 = Mockito.mock(HttpConnection.class);
Mockito.when(conn2.isOpen()).thenReturn(Boolean.TRUE);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1, conn2);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 2);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final LocalPoolEntry entry1 = future1.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry1);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final LocalPoolEntry entry2 = future2.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry2);
entry1.updateExpiry(1, TimeUnit.MILLISECONDS);
pool.release(entry1, true);
Thread.sleep(200);
entry2.updateExpiry(1000, TimeUnit.SECONDS);
pool.release(entry2, true);
pool.closeExpired();
Mockito.verify(conn1).close();
Mockito.verify(conn2, Mockito.never()).close();
final PoolStats totals = pool.getTotalStats();
Assert.assertEquals(1, totals.getAvailable());
Assert.assertEquals(0, totals.getLeased());
final PoolStats stats = pool.getStats("somehost");
Assert.assertEquals(1, stats.getAvailable());
Assert.assertEquals(0, stats.getLeased());
}
@Test
public void testLeaseRelease() throws Exception {
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
final HttpConnection conn2 = Mockito.mock(HttpConnection.class);
Mockito.when(conn2.isOpen()).thenReturn(true);
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1);
Mockito.when(connFactory.create(Mockito.eq("otherhost"))).thenReturn(conn2);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 10);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final LocalPoolEntry entry1 = future1.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry1);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final LocalPoolEntry entry2 = future2.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry2);
final Future<LocalPoolEntry> future3 = pool.lease("otherhost", null);
final LocalPoolEntry entry3 = future3.get(1, TimeUnit.SECONDS);
Assert.assertNotNull(entry3);
PoolStats totals = pool.getTotalStats();
Assert.assertEquals(0, totals.getAvailable());
Assert.assertEquals(3, totals.getLeased());
final LocalPoolEntry entry = future1.get();
Assert.assertSame(entry1, entry);
pool.release(entry1, true);
pool.release(entry2, true);
pool.release(entry3, false);
Mockito.verify(conn1, Mockito.never()).close();
Mockito.verify(conn2, Mockito.times(1)).close();
totals = pool.getTotalStats();
Assert.assertEquals(2, totals.getAvailable());
Assert.assertEquals(0, totals.getLeased());
}
@Test
public void testStatefulConnectionRedistributionOnPerRouteMaxLimit() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
final HttpConnection conn2 = Mockito.mock(HttpConnection.class);
Mockito.when(conn2.isOpen()).thenReturn(true);
final HttpConnection conn3 = Mockito.mock(HttpConnection.class);
Mockito.when(conn3.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1, conn2, conn3);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 10);
pool.setMaxPerRoute("somehost", 2);
pool.setMaxTotal(2);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final GetPoolEntryThread t1 = new GetPoolEntryThread(future1);
t1.start();
t1.join(GRACE_PERIOD);
Assert.assertTrue(future1.isDone());
final LocalPoolEntry entry1 = t1.getEntry();
Assert.assertNotNull(entry1);
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final GetPoolEntryThread t2 = new GetPoolEntryThread(future2);
t2.start();
t2.join(GRACE_PERIOD);
Assert.assertTrue(future2.isDone());
final LocalPoolEntry entry2 = t2.getEntry();
Assert.assertNotNull(entry2);
PoolStats totals = pool.getTotalStats();
Assert.assertEquals(0, totals.getAvailable());
Assert.assertEquals(2, totals.getLeased());
Assert.assertEquals(0, totals.getPending());
entry1.setState("some-stuff");
pool.release(entry1, true);
entry2.setState("some-stuff");
pool.release(entry2, true);
Mockito.verify(connFactory, Mockito.times(2)).create(Mockito.eq("somehost"));
final Future<LocalPoolEntry> future3 = pool.lease("somehost", "some-other-stuff");
final GetPoolEntryThread t3 = new GetPoolEntryThread(future3);
t3.start();
t3.join(GRACE_PERIOD);
Assert.assertTrue(future3.isDone());
final LocalPoolEntry entry3 = t3.getEntry();
Assert.assertNotNull(entry3);
Mockito.verify(connFactory, Mockito.times(3)).create(Mockito.eq("somehost"));
Mockito.verify(conn1).close();
Mockito.verify(conn2, Mockito.never()).close();
totals = pool.getTotalStats();
Assert.assertEquals(1, totals.getAvailable());
Assert.assertEquals(1, totals.getLeased());
}
@Test
public void testConnectionRedistributionOnTotalMaxLimit() throws Exception {
final LocalConnFactory connFactory = Mockito.mock(LocalConnFactory.class);
final HttpConnection conn1 = Mockito.mock(HttpConnection.class);
Mockito.when(conn1.isOpen()).thenReturn(true);
final HttpConnection conn2 = Mockito.mock(HttpConnection.class);
Mockito.when(conn2.isOpen()).thenReturn(true);
final HttpConnection conn3 = Mockito.mock(HttpConnection.class);
Mockito.when(conn3.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("somehost"))).thenReturn(conn1, conn2, conn3);
final HttpConnection conn4 = Mockito.mock(HttpConnection.class);
Mockito.when(conn4.isOpen()).thenReturn(true);
final HttpConnection conn5 = Mockito.mock(HttpConnection.class);
Mockito.when(conn5.isOpen()).thenReturn(true);
Mockito.when(connFactory.create(Mockito.eq("otherhost"))).thenReturn(conn4, conn5);
final LocalConnPool pool = new LocalConnPool(connFactory, 2, 10);
pool.setMaxPerRoute("somehost", 2);
pool.setMaxPerRoute("otherhost", 2);
pool.setMaxTotal(2);
final Future<LocalPoolEntry> future1 = pool.lease("somehost", null);
final GetPoolEntryThread t1 = new GetPoolEntryThread(future1);
t1.start();
final Future<LocalPoolEntry> future2 = pool.lease("somehost", null);
final GetPoolEntryThread t2 = new GetPoolEntryThread(future2);
t2.start();
t1.join(GRACE_PERIOD);
Assert.assertTrue(future1.isDone());
final LocalPoolEntry entry1 = t1.getEntry();
Assert.assertNotNull(entry1);
t2.join(GRACE_PERIOD);
Assert.assertTrue(future2.isDone());
final LocalPoolEntry entry2 = t2.getEntry();
Assert.assertNotNull(entry2);
final Future<LocalPoolEntry> future3 = pool.lease("otherhost", null);
final GetPoolEntryThread t3 = new GetPoolEntryThread(future3);
t3.start();
final Future<LocalPoolEntry> future4 = pool.lease("otherhost", null);
final GetPoolEntryThread t4 = new GetPoolEntryThread(future4);
t4.start();
Assert.assertFalse(t3.isDone());
Assert.assertFalse(t4.isDone());
Mockito.verify(connFactory, Mockito.times(2)).create(Mockito.eq("somehost"));
Mockito.verify(connFactory, Mockito.never()).create(Mockito.eq("otherhost"));
PoolStats totals = pool.getTotalStats();
Assert.assertEquals(0, totals.getAvailable());
Assert.assertEquals(2, totals.getLeased());
pool.release(entry1, true);
pool.release(entry2, true);
t3.join(GRACE_PERIOD);
Assert.assertTrue(future3.isDone());
final LocalPoolEntry entry3 = t3.getEntry();
Assert.assertNotNull(entry3);
t4.join(GRACE_PERIOD);
Assert.assertTrue(future4.isDone());
final LocalPoolEntry entry4 = t4.getEntry();
Assert.assertNotNull(entry4);
Mockito.verify(connFactory, Mockito.times(2)).create(Mockito.eq("somehost"));
Mockito.verify(connFactory, Mockito.times(2)).create(Mockito.eq("otherhost"));
totals = pool.getTotalStats();
Assert.assertEquals(0, totals.getAvailable());
Assert.assertEquals(2, totals.getLeased());
final Future<LocalPoolEntry> future5 = pool.lease("somehost", null);
final GetPoolEntryThread t5 = new GetPoolEntryThread(future5);
t5.start();
final Future<LocalPoolEntry> future6 = pool.lease("otherhost", null);
final GetPoolEntryThread t6 = new GetPoolEntryThread(future6);
t6.start();
pool.release(entry3, true);
pool.release(entry4, true);
t5.join(GRACE_PERIOD);
Assert.assertTrue(future5.isDone());
final LocalPoolEntry entry5 = t5.getEntry();
Assert.assertNotNull(entry5);
t6.join(GRACE_PERIOD);
Assert.assertTrue(future6.isDone());
final LocalPoolEntry entry6 = t6.getEntry();
Assert.assertNotNull(entry6);
Mockito.verify(connFactory, Mockito.times(3)).create(Mockito.eq("somehost"));
Mockito.verify(connFactory, Mockito.times(2)).create(Mockito.eq("otherhost"));
totals = pool.getTotalStats();
Assert.assertEquals(0, totals.getAvailable());
Assert.assertEquals(2, totals.getLeased());
pool.release(entry5, true);
pool.release(entry6, true);
totals = pool.getTotalStats();
Assert.assertEquals(2, totals.getAvailable());
Assert.assertEquals(0, totals.getLeased());
}