| /** |
| * 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.processor; |
| |
| import org.apache.camel.Exchange; |
| import org.slf4j.Logger; |
| |
| import static org.apache.camel.util.ExchangeHelper.hasExceptionBeenHandledByErrorHandler; |
| |
| /** |
| * Helper for processing {@link org.apache.camel.Exchange} in a |
| * <a href="http://camel.apache.org/pipes-and-filters.html">pipeline</a>. |
| * |
| * @version |
| */ |
| public final class PipelineHelper { |
| |
| private PipelineHelper() { |
| } |
| |
| /** |
| * Should we continue processing the exchange? |
| * |
| * @param exchange the next exchange |
| * @param message a message to use when logging that we should not continue processing |
| * @param log a logger |
| * @return <tt>true</tt> to continue processing, <tt>false</tt> to break out, for example if an exception occurred. |
| */ |
| public static boolean continueProcessing(Exchange exchange, String message, Logger log) { |
| // check for error if so we should break out |
| boolean exceptionHandled = hasExceptionBeenHandledByErrorHandler(exchange); |
| if (exchange.isFailed() || exchange.isRollbackOnly() || exceptionHandled) { |
| // The Exchange.ERRORHANDLED_HANDLED property is only set if satisfactory handling was done |
| // by the error handler. It's still an exception, the exchange still failed. |
| if (log.isDebugEnabled()) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("Message exchange has failed " + message + " for exchange: ").append(exchange); |
| if (exchange.isRollbackOnly()) { |
| sb.append(" Marked as rollback only."); |
| } |
| if (exchange.getException() != null) { |
| sb.append(" Exception: ").append(exchange.getException()); |
| } |
| if (exchange.hasOut() && exchange.getOut().isFault()) { |
| sb.append(" Fault: ").append(exchange.getOut()); |
| } |
| if (exceptionHandled) { |
| sb.append(" Handled by the error handler."); |
| } |
| log.debug(sb.toString()); |
| } |
| |
| return false; |
| } |
| |
| |
| // check for stop |
| Object stop = exchange.getProperty(Exchange.ROUTE_STOP); |
| if (stop != null) { |
| boolean doStop = exchange.getContext().getTypeConverter().convertTo(Boolean.class, exchange, stop); |
| if (doStop) { |
| if (log.isDebugEnabled()) { |
| log.debug("ExchangeId: " + exchange.getExchangeId() + " is marked to stop routing: " + exchange); |
| } |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| } |