Examples with ManagedCursor org.apache.bookkeeper.mledger.ManagedCursor used on opensource projects

Example 21 with ManagedCursor

use of org.apache.bookkeeper.mledger.ManagedCursor in project pulsar by yahoo.

the class ManagedCursorTest method testReadEntriesOrWait.

@Test(timeOut = 10000)
void testReadEntriesOrWait() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    final int Consumers = 10;
    final CountDownLatch counter = new CountDownLatch(Consumers);
    for (int i = 0; i < Consumers; i++) {
        ManagedCursor c = ledger.openCursor("c" + i);
        c.asyncReadEntriesOrWait(1, new ReadEntriesCallback() {

            public void readEntriesComplete(List<Entry> entries, Object ctx) {
                assertEquals(entries.size(), 1);
                entries.forEach(e -> e.release());
                counter.countDown();
            }

            public void readEntriesFailed(ManagedLedgerException exception, Object ctx) {
                log.error("Error reading", exception);
            }
        }, null);
    }
    ledger.addEntry("test".getBytes());
    counter.await();
}

Example 22 with ManagedCursor

use of org.apache.bookkeeper.mledger.ManagedCursor in project pulsar by yahoo.

the class ManagedCursorTest method testReopenMultipleTimes.

@Test(timeOut = 20000)
public void testReopenMultipleTimes() throws Exception {
    ManagedLedger ledger = factory.open("testReopenMultipleTimes");
    ManagedCursor c1 = ledger.openCursor("c1");
    Position mdPosition = c1.getMarkDeletedPosition();
    c1.close();
    ledger.close();
    ledger = factory.open("testReopenMultipleTimes");
    c1 = ledger.openCursor("c1");
    // since the empty data ledger will be deleted, the cursor position should also be updated
    assertNotEquals(c1.getMarkDeletedPosition(), mdPosition);
    c1.close();
    ledger.close();
    ledger = factory.open("testReopenMultipleTimes");
    c1 = ledger.openCursor("c1");
}

Example 23 with ManagedCursor

use of org.apache.bookkeeper.mledger.ManagedCursor in project pulsar by yahoo.

the class ManagedCursorTest method testOutOfOrderDeletePersistenceWithClose.

@Test(timeOut = 20000)
public void testOutOfOrderDeletePersistenceWithClose() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger", new ManagedLedgerConfig());
    ManagedCursor c1 = ledger.openCursor("c1");
    List<Position> addedPositions = new ArrayList<>();
    for (int i = 0; i < 20; i++) {
        Position p = ledger.addEntry(("dummy-entry-" + i).getBytes(Encoding));
        addedPositions.add(p);
    }
    // Acknowledge few messages leaving holes
    c1.delete(addedPositions.get(2));
    c1.delete(addedPositions.get(5));
    c1.delete(addedPositions.get(7));
    c1.delete(addedPositions.get(8));
    c1.delete(addedPositions.get(9));
    assertEquals(c1.getNumberOfEntriesInBacklog(), 20 - 5);
    ledger.close();
    factory.shutdown();
    // Re-Open
    factory = new ManagedLedgerFactoryImpl(bkc, bkc.getZkHandle());
    ledger = factory.open("my_test_ledger", new ManagedLedgerConfig());
    c1 = ledger.openCursor("c1");
    assertEquals(c1.getNumberOfEntriesInBacklog(), 20 - 5);
    List<Entry> entries = c1.readEntries(20);
    assertEquals(entries.size(), 20 - 5);
    List<String> entriesStr = entries.stream().map(e -> new String(e.getDataAndRelease(), Encoding)).collect(Collectors.toList());
    assertEquals(entriesStr.get(0), "dummy-entry-0");
    assertEquals(entriesStr.get(1), "dummy-entry-1");
    // Entry-2 was deleted
    assertEquals(entriesStr.get(2), "dummy-entry-3");
    assertEquals(entriesStr.get(3), "dummy-entry-4");
    // Entry-6 was deleted
    assertEquals(entriesStr.get(4), "dummy-entry-6");
    assertFalse(c1.hasMoreEntries());
}

Example 24 with ManagedCursor

use of org.apache.bookkeeper.mledger.ManagedCursor in project pulsar by yahoo.

the class ManagedCursorTest method unorderedAsyncMarkDelete.

@Test(timeOut = 20000)
void unorderedAsyncMarkDelete() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    final ManagedCursor c1 = ledger.openCursor("c1");
    Position p1 = ledger.addEntry("entry-1".getBytes(Encoding));
    Position p2 = ledger.addEntry("entry-2".getBytes(Encoding));
    final CountDownLatch latch = new CountDownLatch(2);
    c1.asyncMarkDelete(p2, new MarkDeleteCallback() {

        public void markDeleteFailed(ManagedLedgerException exception, Object ctx) {
            fail();
        }

        public void markDeleteComplete(Object ctx) {
            latch.countDown();
        }
    }, null);
    c1.asyncMarkDelete(p1, new MarkDeleteCallback() {

        public void markDeleteFailed(ManagedLedgerException exception, Object ctx) {
            latch.countDown();
        }

        public void markDeleteComplete(Object ctx) {
            fail();
        }
    }, null);
    latch.await();
    assertEquals(c1.getMarkDeletedPosition(), p2);
}

Example 25 with ManagedCursor

use of org.apache.bookkeeper.mledger.ManagedCursor in project pulsar by yahoo.

the class ManagedCursorTest method unorderedMarkDelete.

@Test(timeOut = 20000)
void unorderedMarkDelete() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    final ManagedCursor c1 = ledger.openCursor("c1");
    Position p1 = ledger.addEntry("entry-1".getBytes(Encoding));
    Position p2 = ledger.addEntry("entry-2".getBytes(Encoding));
    c1.markDelete(p2);
    try {
        c1.markDelete(p1);
        fail("Should have thrown exception");
    } catch (ManagedLedgerException e) {
    // ok
    }
    assertEquals(c1.getMarkDeletedPosition(), p2);
}