Examples with Service org.apache.ignite.services.Service used on opensource projects

Example 36 with Service

use of org.apache.ignite.services.Service in project ignite by apache.

the class GridServiceProxy method invokeMethod.

/**
 * Invoek the method.
 *
 * @param mtd Method.
 * @param args Arugments.
 * @return Result.
 */
@SuppressWarnings("BusyWait")
public Object invokeMethod(final Method mtd, final Object[] args) {
    if (U.isHashCodeMethod(mtd))
        return System.identityHashCode(proxy);
    else if (U.isEqualsMethod(mtd))
        return proxy == args[0];
    else if (U.isToStringMethod(mtd))
        return GridServiceProxy.class.getSimpleName() + " [name=" + name + ", sticky=" + sticky + ']';
    ctx.gateway().readLock();
    try {
        final long startTime = U.currentTimeMillis();
        while (true) {
            ClusterNode node = null;
            try {
                node = nodeForService(name, sticky);
                if (node == null)
                    throw new IgniteException("Failed to find deployed service: " + name);
                // If service is deployed locally, then execute locally.
                if (node.isLocal()) {
                    ServiceContextImpl svcCtx = ctx.service().serviceContext(name);
                    if (svcCtx != null) {
                        Service svc = svcCtx.service();
                        if (svc != null)
                            return mtd.invoke(svc, args);
                    }
                } else {
                    if (node.version().compareTo(SVC_POOL_SINCE_VER) >= 0)
                        ctx.task().setThreadContext(TC_IO_POLICY, GridIoPolicy.SERVICE_POOL);
                    // Execute service remotely.
                    return ctx.closure().callAsyncNoFailover(GridClosureCallMode.BROADCAST, new ServiceProxyCallable(mtd.getName(), name, mtd.getParameterTypes(), args), Collections.singleton(node), false, waitTimeout, true).get();
                }
            } catch (GridServiceNotFoundException | ClusterTopologyCheckedException e) {
                if (log.isDebugEnabled())
                    log.debug("Service was not found or topology changed (will retry): " + e.getMessage());
            } catch (RuntimeException | Error e) {
                throw e;
            } catch (IgniteCheckedException e) {
                throw U.convertException(e);
            } catch (Exception e) {
                throw new IgniteException(e);
            }
            // If we are here, that means that service was not found
            // or topology was changed. In this case, we erase the
            // previous sticky node and try again.
            rmtNode.compareAndSet(node, null);
            // Add sleep between retries to avoid busy-wait loops.
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                throw new IgniteException(e);
            }
            if (waitTimeout > 0 && U.currentTimeMillis() - startTime >= waitTimeout)
                throw new IgniteException("Service acquire timeout was reached, stopping. [timeout=" + waitTimeout + "]");
        }
    } finally {
        ctx.gateway().readUnlock();
    }
}

Example 37 with Service

use of org.apache.ignite.services.Service in project gridgain by gridgain.

the class GridServiceProcessor method onKernalStop.

/**
 * {@inheritDoc}
 */
@Override
public void onKernalStop(boolean cancel) {
    if (ctx.isDaemon())
        return;
    GridSpinBusyLock busyLock = this.busyLock;
    // Will not release it.
    if (busyLock != null) {
        busyLock.block();
        this.busyLock = null;
    }
    startLatch.countDown();
    U.shutdownNow(GridServiceProcessor.class, depExe, log);
    if (!ctx.clientNode())
        ctx.event().removeDiscoveryEventListener(topLsnr);
    Collection<ServiceContextImpl> ctxs = new ArrayList<>();
    synchronized (locSvcs) {
        for (Collection<ServiceContextImpl> ctxs0 : locSvcs.values()) ctxs.addAll(ctxs0);
        locSvcs.clear();
    }
    for (ServiceContextImpl ctx : ctxs) {
        ctx.setCancelled(true);
        Service svc = ctx.service();
        if (svc != null)
            try {
                svc.cancel(ctx);
            } catch (Throwable e) {
                log.error("Failed to cancel service (ignoring) [name=" + ctx.name() + ", execId=" + ctx.executionId() + ']', e);
                if (e instanceof Error)
                    throw e;
            }
        ctx.executor().shutdownNow();
    }
    for (ServiceContextImpl ctx : ctxs) {
        try {
            if (log.isInfoEnabled() && !ctxs.isEmpty())
                log.info("Shutting down distributed service [name=" + ctx.name() + ", execId8=" + U.id8(ctx.executionId()) + ']');
            ctx.executor().awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS);
        } catch (InterruptedException ignore) {
            Thread.currentThread().interrupt();
            U.error(log, "Got interrupted while waiting for service to shutdown (will continue stopping node): " + ctx.name());
        }
    }
    Exception err = new IgniteCheckedException("Operation has been cancelled (node is stopping).");
    cancelFutures(depFuts, err);
    cancelFutures(undepFuts, err);
    if (log.isDebugEnabled())
        log.debug("Stopped service processor.");
}

Example 38 with Service

use of org.apache.ignite.services.Service in project gridgain by gridgain.

the class GridServiceProcessor method service.

/**
 * {@inheritDoc}
 */
@Override
public <T> T service(String name) {
    ctx.security().authorize(name, SecurityPermission.SERVICE_INVOKE);
    Collection<ServiceContextImpl> ctxs;
    synchronized (locSvcs) {
        ctxs = locSvcs.get(name);
    }
    if (ctxs == null)
        return null;
    synchronized (ctxs) {
        if (ctxs.isEmpty())
            return null;
        for (ServiceContextImpl ctx : ctxs) {
            Service svc = ctx.service();
            if (svc != null)
                return (T) svc;
        }
        return null;
    }
}

Example 39 with Service

use of org.apache.ignite.services.Service in project gridgain by gridgain.

the class GridServiceProxy method invokeMethod.

/**
 * Invoek the method.
 *
 * @param mtd Method.
 * @param args Arugments.
 * @return Result.
 */
@SuppressWarnings("BusyWait")
public Object invokeMethod(final Method mtd, final Object[] args) throws Throwable {
    if (U.isHashCodeMethod(mtd))
        return System.identityHashCode(proxy);
    else if (U.isEqualsMethod(mtd))
        return proxy == args[0];
    else if (U.isToStringMethod(mtd))
        return GridServiceProxy.class.getSimpleName() + " [name=" + name + ", sticky=" + sticky + ']';
    ctx.gateway().readLock();
    try {
        final long startTime = U.currentTimeMillis();
        while (true) {
            ClusterNode node = null;
            try {
                node = nodeForService(name, sticky);
                if (node == null)
                    throw new IgniteException("Failed to find deployed service: " + name);
                // If service is deployed locally, then execute locally.
                if (node.isLocal()) {
                    ServiceContextImpl svcCtx = ctx.service().serviceContext(name);
                    if (svcCtx != null) {
                        Service svc = svcCtx.service();
                        if (svc != null)
                            return callServiceLocally(svc, mtd, args);
                    }
                } else {
                    ctx.task().setThreadContext(TC_IO_POLICY, GridIoPolicy.SERVICE_POOL);
                    // Execute service remotely.
                    return ctx.closure().callAsyncNoFailover(GridClosureCallMode.BROADCAST, new ServiceProxyCallable(methodName(mtd), name, mtd.getParameterTypes(), args), Collections.singleton(node), false, waitTimeout, true).get();
                }
            } catch (InvocationTargetException e) {
                // For local services rethrow original exception.
                throw e.getTargetException();
            } catch (RuntimeException | Error e) {
                throw e;
            } catch (IgniteCheckedException e) {
                // Check if ignorable exceptions are in the cause chain.
                Throwable ignorableCause = X.cause(e, ClusterTopologyCheckedException.class);
                if (ignorableCause == null && ctx.service() instanceof GridServiceProcessor)
                    ignorableCause = X.cause(e, GridServiceNotFoundException.class);
                if (ignorableCause != null) {
                    if (log.isDebugEnabled())
                        log.debug("Service was not found or topology changed (will retry): " + ignorableCause.getMessage());
                } else {
                    // Rethrow original service method exception so that calling user code can handle it correctly.
                    ServiceProxyException svcProxyE = X.cause(e, ServiceProxyException.class);
                    if (svcProxyE != null)
                        throw svcProxyE.getCause();
                    throw U.convertException(e);
                }
            } catch (Exception e) {
                throw new IgniteException(e);
            }
            // If we are here, that means that service was not found
            // or topology was changed. In this case, we erase the
            // previous sticky node and try again.
            rmtNode.compareAndSet(node, null);
            // Add sleep between retries to avoid busy-wait loops.
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                throw new IgniteException(e);
            }
            if (waitTimeout > 0 && U.currentTimeMillis() - startTime >= waitTimeout)
                throw new IgniteException("Service acquire timeout was reached, stopping. [timeout=" + waitTimeout + "]");
        }
    } finally {
        ctx.gateway().readUnlock();
    }
}

Example 40 with Service

use of org.apache.ignite.services.Service in project gridgain by gridgain.

the class IgniteServiceProcessor method cancel.

/**
 * Perform cancelation on given service context.
 *
 * @param ctx Service context.
 */
private void cancel(ServiceContextImpl ctx) {
    // Flip cancelled flag.
    ctx.setCancelled(true);
    // Notify service about cancellation.
    Service srvc = ctx.service();
    if (srvc != null) {
        try {
            srvc.cancel(ctx);
        } catch (Throwable e) {
            U.error(log, "Failed to cancel service (ignoring) [name=" + ctx.name() + ", execId=" + ctx.executionId() + ']', e);
            if (e instanceof Error)
                throw e;
        } finally {
            try {
                this.ctx.resource().cleanup(srvc);
            } catch (IgniteCheckedException e) {
                U.error(log, "Failed to clean up service (will ignore): " + ctx.name(), e);
            }
        }
    }
    // Close out executor thread for the service.
    // This will cause the thread to be interrupted.
    ctx.executor().shutdownNow();
    if (log.isInfoEnabled()) {
        log.info("Cancelled service instance [name=" + ctx.name() + ", execId=" + ctx.executionId() + ']');
    }
}