Examples with SharedContextSendException jp.ossc.nimbus.service.context.SharedContextSendException used on opensource projects

Example 1 with SharedContextSendException

use of jp.ossc.nimbus.service.context.SharedContextSendException in project nimbus by nimbus-org.

the class SharedQueueService method onLockFirst.

protected Message onLockFirst(SharedContextEvent event, final Object sourceId, final int sequence, final String responseSubject, final String responseKey) {
    if (isMain(sourceId)) {
        final Object[] params = (Object[]) event.value;
        final long threadId = ((Long) params[0]).longValue();
        long timeout = ((Long) params[1]).longValue();
        Object[] keys = null;
        if (context.size() != 0) {
            synchronized (context) {
                if (context.size() != 0) {
                    keys = context.keySet().toArray();
                }
            }
        }
        if (keys == null || keys.length == 0) {
            return createResponseMessage(responseSubject, responseKey, null);
        }
        for (int i = 0; i < keys.length; i++) {
            final Object key = keys[i];
            if (!containsKey(key)) {
                continue;
            }
            Lock lock = null;
            synchronized (keyLockMap) {
                lock = (Lock) keyLockMap.get(key);
                if (lock == null) {
                    lock = new Lock(key);
                    keyLockMap.put(key, lock);
                }
            }
            final long start = System.currentTimeMillis();
            if (lock.acquireForReply(sourceId, threadId, true, true, timeout, sourceId, sequence, responseSubject, responseKey)) {
                if (!containsKey(key)) {
                    lock.release(sourceId, false);
                    continue;
                }
                final boolean isNoTimeout = timeout <= 0;
                timeout = isNoTimeout ? timeout : (timeout - (System.currentTimeMillis() - start));
                if (!isNoTimeout && timeout <= 0) {
                    lock.release(sourceId, false);
                    return createResponseMessage(responseSubject, responseKey, null);
                } else {
                    try {
                        Message message = serverConnection.createMessage(subject, key.toString());
                        message.setSubject(clientSubject, key.toString());
                        final Set receiveClients = serverConnection.getReceiveClientIds(message);
                        receiveClients.remove(sourceId);
                        if (receiveClients.size() != 0) {
                            message.setDestinationIds(receiveClients);
                            message.setObject(new SharedContextEvent(SharedContextEvent.EVENT_GOT_LOCK, key, new Object[] { sourceId, new Long(threadId), new Long(timeout) }));
                            final Lock lockedLock = lock;
                            serverConnection.request(message, isClient ? clientSubject : subject, key == null ? null : key.toString(), 0, timeout, new RequestServerConnection.ResponseCallBack() {

                                public void onResponse(Object fromId, Message response, boolean isLast) {
                                    if (receiveClients.size() == 0) {
                                        return;
                                    }
                                    try {
                                        if (response == null) {
                                            unlock(key);
                                            serverConnection.response(sourceId, sequence, createResponseMessage(responseSubject, responseKey, null));
                                            receiveClients.clear();
                                            return;
                                        }
                                        receiveClients.remove(fromId);
                                        Object ret = response.getObject();
                                        response.recycle();
                                        if (ret == null || ret instanceof Throwable || !((Boolean) ret).booleanValue()) {
                                            unlock(key);
                                            serverConnection.response(sourceId, sequence, createResponseMessage(responseSubject, responseKey, null));
                                            receiveClients.clear();
                                        } else if (isLast) {
                                            serverConnection.response(sourceId, sequence, createResponseMessage(responseSubject, responseKey, key));
                                        }
                                    } catch (Throwable th) {
                                        try {
                                            unlock(key);
                                        } catch (SharedContextSendException e) {
                                            getLogger().write("SCS__00007", new Object[] { isClient ? clientSubject : subject, key }, e);
                                        }
                                        try {
                                            serverConnection.response(sourceId, sequence, createResponseMessage(responseSubject, responseKey, th));
                                        } catch (MessageSendException e) {
                                            getLogger().write("SCS__00006", new Object[] { isClient ? clientSubject : subject, key }, e);
                                        }
                                    }
                                }
                            });
                            return null;
                        } else {
                            return createResponseMessage(responseSubject, responseKey, key);
                        }
                    } catch (Throwable th) {
                        try {
                            unlock(key);
                        } catch (SharedContextSendException e) {
                            getLogger().write("SCS__00007", new Object[] { isClient ? clientSubject : subject, key }, e);
                        }
                        return createResponseMessage(responseSubject, responseKey, th);
                    }
                }
            }
        }
        return createResponseMessage(responseSubject, responseKey, null);
    }
    return null;
}

Example 2 with SharedContextSendException

use of jp.ossc.nimbus.service.context.SharedContextSendException in project nimbus by nimbus-org.

the class SharedQueueService method lockFirst.

protected Object lockFirst(long timeout) throws SharedContextSendException, SharedContextTimeoutException {
    if (isMain()) {
        List keys = null;
        if (context.size() != 0) {
            synchronized (context) {
                if (context.size() != 0) {
                    Iterator itr = context.keySet().iterator();
                    for (int i = 0; i < seekDepth && itr.hasNext(); i++) {
                        if (keys == null) {
                            keys = new ArrayList();
                        }
                        keys.add(itr.next());
                    }
                }
            }
        }
        if (keys == null || keys.size() == 0) {
            return null;
        }
        for (int i = 0; i < keys.size(); i++) {
            Object key = keys.get(i);
            try {
                if (lock(key, true, true, timeout)) {
                    return key;
                }
            } catch (SharedContextTimeoutException e) {
                continue;
            }
        }
        return null;
    } else {
        Object lockedKey = null;
        final long start = System.currentTimeMillis();
        try {
            String key = getId().toString() + Thread.currentThread().getId();
            Message message = serverConnection.createMessage(subject, key);
            Set receiveClients = serverConnection.getReceiveClientIds(message);
            if (receiveClients.size() != 0) {
                message.setObject(new SharedQueueEvent(SharedQueueEvent.EVENT_LOCK_FIRST, null, new Object[] { new Long(Thread.currentThread().getId()), new Long(timeout) }));
                Message[] responses = serverConnection.request(message, isClient ? clientSubject : subject, key, 1, timeout);
                Object ret = responses[0].getObject();
                responses[0].recycle();
                if (ret instanceof Throwable) {
                    throw new SharedContextSendException((Throwable) ret);
                } else {
                    lockedKey = ret;
                }
            } else {
                throw new NoConnectServerException("Main server is not found.");
            }
        } catch (MessageException e) {
            throw new SharedContextSendException(e);
        } catch (MessageSendException e) {
            throw new SharedContextSendException(e);
        } catch (RequestTimeoutException e) {
            final boolean isNoTimeout = timeout <= 0;
            timeout = isNoTimeout ? timeout : timeout - (System.currentTimeMillis() - start);
            if (!isNoTimeout && timeout <= 0) {
                throw new SharedContextTimeoutException("timeout=" + timeout + ", processTime=" + (System.currentTimeMillis() - start), e);
            } else {
                return lockFirst(timeout);
            }
        } catch (RuntimeException e) {
            throw e;
        } catch (Error e) {
            throw e;
        }
        if (lockedKey != null) {
            Lock lock = null;
            synchronized (keyLockMap) {
                lock = (Lock) keyLockMap.get(lockedKey);
                if (lock == null) {
                    lock = new Lock(lockedKey);
                    keyLockMap.put(lockedKey, lock);
                }
            }
            final boolean isNoTimeout = timeout <= 0;
            timeout = isNoTimeout ? timeout : timeout - (System.currentTimeMillis() - start);
            if (!isNoTimeout && timeout <= 0) {
                unlock(lockedKey);
                throw new SharedContextTimeoutException("timeout=" + timeout + ", processTime=" + (System.currentTimeMillis() - start));
            } else if (!lock.acquire(getId(), true, timeout)) {
                unlock(lockedKey);
                return null;
            }
        }
        return lockedKey;
    }
}