| /** |
| * 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.impl; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Expression; |
| import org.apache.camel.Processor; |
| import org.apache.camel.RouteNode; |
| import org.apache.camel.management.InstrumentationProcessor; |
| import org.apache.camel.model.ProcessorDefinition; |
| import org.apache.camel.processor.Traceable; |
| |
| /** |
| * A default implementation of the {@link org.apache.camel.RouteNode} |
| * |
| * @version $Revision$ |
| */ |
| public class DefaultRouteNode implements RouteNode { |
| |
| private Expression expression; |
| private Processor processor; |
| private ProcessorDefinition<?> processorDefinition; |
| |
| public DefaultRouteNode(ProcessorDefinition<?> processorDefinition, Processor processor) { |
| this.processor = processor; |
| this.processorDefinition = processorDefinition; |
| } |
| |
| public DefaultRouteNode(ProcessorDefinition<?> processorDefinition, Expression expression) { |
| this.processorDefinition = processorDefinition; |
| this.expression = expression; |
| } |
| |
| public Processor getProcessor() { |
| return processor; |
| } |
| |
| public ProcessorDefinition<?> getProcessorDefinition() { |
| return processorDefinition; |
| } |
| |
| public String getLabel(Exchange exchange) { |
| if (expression != null) { |
| return expression.evaluate(exchange, String.class); |
| } |
| |
| Processor target = processor; |
| if (target != null) { |
| // can be wrapped |
| if (target instanceof InstrumentationProcessor) { |
| target = ((InstrumentationProcessor) target).getProcessor(); |
| } |
| |
| if (target instanceof Traceable) { |
| Traceable trace = (Traceable) target; |
| return trace.getTraceLabel(); |
| } |
| } |
| |
| // default then to definition |
| return processorDefinition.getLabel(); |
| } |
| |
| public boolean isAbstract() { |
| return processor == null; |
| } |
| |
| @Override |
| public String toString() { |
| return "RouteNode[" + processorDefinition + "]"; |
| } |
| } |