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

Example 51 with ManagedCursor

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

the class ManagedCursorTest method seekPosition.

@Test(timeOut = 20000)
void seekPosition() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger", new ManagedLedgerConfig().setMaxEntriesPerLedger(10));
    ManagedCursor cursor = ledger.openCursor("c1");
    ledger.addEntry("dummy-entry-1".getBytes(Encoding));
    ledger.addEntry("dummy-entry-2".getBytes(Encoding));
    ledger.addEntry("dummy-entry-3".getBytes(Encoding));
    PositionImpl lastPosition = (PositionImpl) ledger.addEntry("dummy-entry-4".getBytes(Encoding));
    cursor.seek(new PositionImpl(lastPosition.getLedgerId(), lastPosition.getEntryId() - 1));
}

Example 52 with ManagedCursor

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

the class ManagedCursorTest method cursorPersistence.

@Test(timeOut = 20000)
void cursorPersistence() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    ManagedCursor c1 = ledger.openCursor("c1");
    ManagedCursor c2 = ledger.openCursor("c2");
    ledger.addEntry("dummy-entry-1".getBytes(Encoding));
    ledger.addEntry("dummy-entry-2".getBytes(Encoding));
    ledger.addEntry("dummy-entry-3".getBytes(Encoding));
    ledger.addEntry("dummy-entry-4".getBytes(Encoding));
    ledger.addEntry("dummy-entry-5".getBytes(Encoding));
    ledger.addEntry("dummy-entry-6".getBytes(Encoding));
    List<Entry> entries = c1.readEntries(3);
    Position p1 = entries.get(2).getPosition();
    c1.markDelete(p1);
    entries.forEach(e -> e.release());
    entries = c1.readEntries(4);
    Position p2 = entries.get(2).getPosition();
    c2.markDelete(p2);
    entries.forEach(e -> e.release());
    // Reopen
    ManagedLedgerFactory factory2 = new ManagedLedgerFactoryImpl(bkc, bkc.getZkHandle());
    ledger = factory2.open("my_test_ledger");
    c1 = ledger.openCursor("c1");
    c2 = ledger.openCursor("c2");
    assertEquals(c1.getMarkDeletedPosition(), p1);
    assertEquals(c2.getMarkDeletedPosition(), p2);
    factory2.shutdown();
}

Example 53 with ManagedCursor

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

the class ManagedCursorTest method testSkipEntriesWithIndividualDeletedMessages.

@Test(timeOut = 20000)
void testSkipEntriesWithIndividualDeletedMessages() throws Exception {
    ManagedLedger ledger = factory.open("testSkipEntriesWithIndividualDeletedMessages", new ManagedLedgerConfig().setMaxEntriesPerLedger(5));
    ManagedCursor c1 = ledger.openCursor("c1");
    Position pos1 = ledger.addEntry("dummy-entry-1".getBytes(Encoding));
    Position pos2 = ledger.addEntry("dummy-entry-2".getBytes(Encoding));
    Position pos3 = ledger.addEntry("dummy-entry-3".getBytes(Encoding));
    Position pos4 = ledger.addEntry("dummy-entry-4".getBytes(Encoding));
    Position pos5 = ledger.addEntry("dummy-entry-5".getBytes(Encoding));
    // delete individual messages
    c1.delete(pos2);
    c1.delete(pos4);
    c1.skipEntries(3, IndividualDeletedEntries.Exclude);
    assertEquals(c1.getNumberOfEntries(), 0);
    assertEquals(c1.getReadPosition(), pos5.getNext());
    assertEquals(c1.getMarkDeletedPosition(), pos5);
    pos1 = ledger.addEntry("dummy-entry-1".getBytes(Encoding));
    pos2 = ledger.addEntry("dummy-entry-2".getBytes(Encoding));
    pos3 = ledger.addEntry("dummy-entry-3".getBytes(Encoding));
    pos4 = ledger.addEntry("dummy-entry-4".getBytes(Encoding));
    pos5 = ledger.addEntry("dummy-entry-5".getBytes(Encoding));
    c1.delete(pos2);
    c1.delete(pos4);
    c1.skipEntries(4, IndividualDeletedEntries.Include);
    assertEquals(c1.getNumberOfEntries(), 1);
    assertEquals(c1.getReadPosition(), pos5);
    assertEquals(c1.getMarkDeletedPosition(), pos4);
}

Example 54 with ManagedCursor

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

the class ManagedLedgerTest method fenceManagedLedger.

@Test(enabled = false)
public void fenceManagedLedger() throws Exception {
    ManagedLedgerFactory factory1 = new ManagedLedgerFactoryImpl(bkc, bkc.getZkHandle());
    ManagedLedger ledger1 = factory1.open("my_test_ledger");
    ManagedCursor cursor1 = ledger1.openCursor("c1");
    ledger1.addEntry("entry-1".getBytes(Encoding));
    ManagedLedgerFactory factory2 = new ManagedLedgerFactoryImpl(bkc, bkc.getZkHandle());
    ManagedLedger ledger2 = factory2.open("my_test_ledger");
    ManagedCursor cursor2 = ledger2.openCursor("c1");
    // At this point ledger1 must have been fenced
    try {
        ledger1.addEntry("entry-1".getBytes(Encoding));
        fail("Expecting exception");
    } catch (ManagedLedgerFencedException e) {
    }
    try {
        ledger1.addEntry("entry-2".getBytes(Encoding));
        fail("Expecting exception");
    } catch (ManagedLedgerFencedException e) {
    }
    try {
        cursor1.readEntries(10);
        fail("Expecting exception");
    } catch (ManagedLedgerFencedException e) {
    }
    try {
        ledger1.openCursor("new cursor");
        fail("Expecting exception");
    } catch (ManagedLedgerFencedException e) {
    }
    ledger2.addEntry("entry-2".getBytes(Encoding));
    assertEquals(cursor2.getNumberOfEntries(), 2);
    factory1.shutdown();
    factory2.shutdown();
}

Example 55 with ManagedCursor

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

the class ManagedLedgerTest method triggerLedgerDeletion.

@Test(timeOut = 20000)
public void triggerLedgerDeletion() throws Exception {
    ManagedLedgerConfig config = new ManagedLedgerConfig().setMaxEntriesPerLedger(1);
    ManagedLedger ledger = factory.open("my_test_ledger", config);
    ManagedCursor cursor = ledger.openCursor("test");
    ledger.addEntry("entry-1".getBytes(Encoding));
    ledger.addEntry("entry-2".getBytes(Encoding));
    ledger.addEntry("entry-3".getBytes(Encoding));
    assertEquals(cursor.hasMoreEntries(), true);
    List<Entry> entries = cursor.readEntries(1);
    assertEquals(entries.size(), 1);
    assertEquals(ledger.getNumberOfEntries(), 3);
    entries.forEach(e -> e.release());
    assertEquals(cursor.hasMoreEntries(), true);
    entries = cursor.readEntries(1);
    assertEquals(cursor.hasMoreEntries(), true);
    cursor.markDelete(entries.get(0).getPosition());
    entries.forEach(e -> e.release());
}