Package java.util.concurrent.locks.ReentrantReadWriteLock

Examples of java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock

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        /* to be safe we just create a new
         * datatree.
         */
        dataTree = new DataTree();
        sessionsWithTimeouts.clear();
        WriteLock lock = logLock.writeLock();
        try {           
            lock.lock();
            committedLog.clear();
        } finally {
            lock.unlock();
        }
        initialized = false;
    }
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     *  or so committed requests. This is used for
     * fast follower synchronization.
     * @param request committed request
     */
    public void addCommittedProposal(Request request) {
        WriteLock wl = logLock.writeLock();
        try {
            wl.lock();
            if (committedLog.size() > commitLogCount) {
                committedLog.removeFirst();
                minCommittedLog = committedLog.getFirst().packet.getZxid();
            }
            if (committedLog.size() == 0) {
                minCommittedLog = request.zxid;
                maxCommittedLog = request.zxid;
            }

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
            try {
                request.hdr.serialize(boa, "hdr");
                if (request.txn != null) {
                    request.txn.serialize(boa, "txn");
                }
                baos.close();
            } catch (IOException e) {
                LOG.error("This really should be impossible", e);
            }
            QuorumPacket pp = new QuorumPacket(Leader.PROPOSAL, request.zxid,
                    baos.toByteArray(), null);
            Proposal p = new Proposal();
            p.packet = pp;
            p.request = request;
            committedLog.add(p);
            maxCommittedLog = p.packet.getZxid();
        } finally {
            wl.unlock();
        }
    }
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        /* to be safe we just create a new
         * datatree.
         */
        dataTree = new DataTree();
        sessionsWithTimeouts.clear();
        WriteLock lock = logLock.writeLock();
        try {           
            lock.lock();
            committedLog.clear();
        } finally {
            lock.unlock();
        }
        initialized = false;
    }
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     *  or so committed requests. This is used for
     * fast follower synchronization.
     * @param request committed request
     */
    public void addCommittedProposal(Request request) {
        WriteLock wl = logLock.writeLock();
        try {
            wl.lock();
            if (committedLog.size() > commitLogCount) {
                committedLog.removeFirst();
                minCommittedLog = committedLog.getFirst().packet.getZxid();
            }
            if (committedLog.size() == 0) {
                minCommittedLog = request.zxid;
                maxCommittedLog = request.zxid;
            }

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
            try {
                request.hdr.serialize(boa, "hdr");
                if (request.txn != null) {
                    request.txn.serialize(boa, "txn");
                }
                baos.close();
            } catch (IOException e) {
                LOG.error("This really should be impossible", e);
            }
            QuorumPacket pp = new QuorumPacket(Leader.PROPOSAL, request.zxid,
                    baos.toByteArray(), null);
            Proposal p = new Proposal();
            p.packet = pp;
            p.request = request;
            committedLog.add(p);
            maxCommittedLog = p.packet.getZxid();
        } finally {
            wl.unlock();
        }
    }
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        return gitService.get().getGit();
    }

    @Override
    public LockHandle aquireWriteLock() {
        final WriteLock writeLock = readWriteLock.writeLock();
        boolean success;
        try {
            success = writeLock.tryLock() || writeLock.tryLock(AQUIRE_LOCK_TIMEOUT, TimeUnit.MILLISECONDS);
        } catch (InterruptedException ex) {
            success = false;
        }
        IllegalStateAssertion.assertTrue(success, "Cannot obtain profile write lock in time");
        return new LockHandle() {
            @Override
            public void unlock() {
                if (notificationRequired && readWriteLock.getWriteHoldCount() == 1) {
                    try {
                        dataStore.get().fireChangeNotifications();
                    } finally {
                        notificationRequired = false;
                    }
                }
                writeLock.unlock();
            }
        };
    }
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            }
            return lock;
        }

        private WriteLock writeLock(long timeout, TimeUnit unit) {
            WriteLock lock = rwlock.writeLock();
            try {
                if (!lock.tryLock() && !lock.tryLock(timeout, unit))
                    throw new PermitStateTimeoutException("Cannot aquire write lock for [" + key.getName() + "] in time", key, timeout, unit);
            } catch (InterruptedException ex) {
                throw new IllegalStateException(ex);
            }
            return lock;
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        /* to be safe we just create a new
         * datatree.
         */
        dataTree = new DataTree();
        sessionsWithTimeouts.clear();
        WriteLock lock = logLock.writeLock();
        try {
            lock.lock();
            committedLog.clear();
        } finally {
            lock.unlock();
        }
        initialized = false;
    }
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     *  or so committed requests. This is used for
     * fast follower synchronization.
     * @param request committed request
     */
    public void addCommittedProposal(Request request) {
        WriteLock wl = logLock.writeLock();
        try {
            wl.lock();
            if (committedLog.size() > commitLogCount) {
                committedLog.removeFirst();
                minCommittedLog = committedLog.getFirst().packet.getZxid();
            }
            if (committedLog.isEmpty()) {
                minCommittedLog = request.zxid;
                maxCommittedLog = request.zxid;
            }

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
            try {
                request.getHdr().serialize(boa, "hdr");
                if (request.getTxn() != null) {
                    request.getTxn().serialize(boa, "txn");
                }
                baos.close();
            } catch (IOException e) {
                LOG.error("This really should be impossible", e);
            }
            QuorumPacket pp = new QuorumPacket(Leader.PROPOSAL, request.zxid,
                    baos.toByteArray(), null);
            Proposal p = new Proposal();
            p.packet = pp;
            p.request = request;
            committedLog.add(p);
            maxCommittedLog = p.packet.getZxid();
        } finally {
            wl.unlock();
        }
    }
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  @Test
  public void testUpdateCreatedConnectionsWithException() throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException {
 
    // Test #2: Same test but fake an exception
    ReentrantReadWriteLock mockLock = createNiceMock(ReentrantReadWriteLock.class);
    WriteLock mockWriteLock = createNiceMock(WriteLock.class);

    Field field = testClass.getClass().getDeclaredField("statsLock");
    field.setAccessible(true);
    ReentrantReadWriteLock oldLock = (ReentrantReadWriteLock) field.get(testClass);
    field.set(testClass, mockLock);
    expect(mockLock.writeLock()).andThrow(new RuntimeException()).once().andReturn(mockWriteLock).once();
    mockWriteLock.lock();
    expectLastCall().once();
    replay(mockLock, mockWriteLock);

    try{
      testClass.updateCreatedConnections(5);
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