| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.support; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Route; |
| import org.apache.camel.spi.Synchronization; |
| import org.apache.camel.spi.SynchronizationRouteAware; |
| import org.apache.camel.spi.UnitOfWork; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Utility methods for {@link org.apache.camel.spi.UnitOfWork} |
| */ |
| public final class UnitOfWorkHelper { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(UnitOfWorkHelper.class); |
| |
| private UnitOfWorkHelper() { |
| } |
| |
| /** |
| * Done and stop the {@link UnitOfWork}. |
| * |
| * @param uow the unit of work |
| * @param exchange the exchange (will unset the UoW on the exchange) |
| */ |
| public static void doneUow(UnitOfWork uow, Exchange exchange) { |
| // unit of work is done |
| try { |
| if (uow != null) { |
| uow.done(exchange); |
| } |
| } catch (Throwable e) { |
| LOG.warn("Exception occurred during done UnitOfWork for Exchange: " + exchange |
| + ". This exception will be ignored.", e); |
| } |
| try { |
| if (uow != null) { |
| uow.stop(); |
| } |
| } catch (Throwable e) { |
| LOG.warn("Exception occurred during stopping UnitOfWork for Exchange: " + exchange |
| + ". This exception will be ignored.", e); |
| } |
| |
| // remove uow from exchange as its done |
| exchange.setUnitOfWork(null); |
| } |
| |
| public static void doneSynchronizations(Exchange exchange, List<Synchronization> synchronizations, Logger log) { |
| boolean failed = exchange.isFailed(); |
| |
| if (synchronizations != null && !synchronizations.isEmpty()) { |
| // work on a copy of the list to avoid any modification which may cause ConcurrentModificationException |
| List<Synchronization> copy = new ArrayList<>(synchronizations); |
| |
| // reverse so we invoke it FILO style instead of FIFO |
| Collections.reverse(copy); |
| // and honor if any was ordered by sorting it accordingly |
| copy.sort(OrderedComparator.get()); |
| |
| // invoke synchronization callbacks |
| for (Synchronization synchronization : copy) { |
| try { |
| if (failed) { |
| log.trace("Invoking synchronization.onFailure: {} with {}", synchronization, exchange); |
| synchronization.onFailure(exchange); |
| } else { |
| log.trace("Invoking synchronization.onComplete: {} with {}", synchronization, exchange); |
| synchronization.onComplete(exchange); |
| } |
| } catch (Throwable e) { |
| // must catch exceptions to ensure all synchronizations have a chance to run |
| log.warn("Exception occurred during onCompletion. This exception will be ignored.", e); |
| } |
| } |
| } |
| } |
| |
| public static void beforeRouteSynchronizations(Route route, Exchange exchange, List<Synchronization> synchronizations, Logger log) { |
| if (synchronizations != null && !synchronizations.isEmpty()) { |
| // work on a copy of the list to avoid any modification which may cause ConcurrentModificationException |
| List<Synchronization> copy = new ArrayList<>(synchronizations); |
| |
| // reverse so we invoke it FILO style instead of FIFO |
| Collections.reverse(copy); |
| // and honor if any was ordered by sorting it accordingly |
| copy.sort(OrderedComparator.get()); |
| |
| // invoke synchronization callbacks |
| for (Synchronization synchronization : copy) { |
| if (synchronization instanceof SynchronizationRouteAware) { |
| try { |
| log.trace("Invoking synchronization.onBeforeRoute: {} with {}", synchronization, exchange); |
| ((SynchronizationRouteAware) synchronization).onBeforeRoute(route, exchange); |
| } catch (Throwable e) { |
| // must catch exceptions to ensure all synchronizations have a chance to run |
| log.warn("Exception occurred during onBeforeRoute. This exception will be ignored.", e); |
| } |
| } |
| } |
| } |
| } |
| |
| public static void afterRouteSynchronizations(Route route, Exchange exchange, List<Synchronization> synchronizations, Logger log) { |
| if (synchronizations != null && !synchronizations.isEmpty()) { |
| // work on a copy of the list to avoid any modification which may cause ConcurrentModificationException |
| List<Synchronization> copy = new ArrayList<>(synchronizations); |
| |
| // reverse so we invoke it FILO style instead of FIFO |
| Collections.reverse(copy); |
| // and honor if any was ordered by sorting it accordingly |
| copy.sort(OrderedComparator.get()); |
| |
| // invoke synchronization callbacks |
| for (Synchronization synchronization : copy) { |
| if (synchronization instanceof SynchronizationRouteAware) { |
| try { |
| log.trace("Invoking synchronization.onAfterRoute: {} with {}", synchronization, exchange); |
| ((SynchronizationRouteAware) synchronization).onAfterRoute(route, exchange); |
| } catch (Throwable e) { |
| // must catch exceptions to ensure all synchronizations have a chance to run |
| log.warn("Exception occurred during onAfterRoute. This exception will be ignored.", e); |
| } |
| } |
| } |
| } |
| } |
| |
| } |