001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.ruby;
018    
019    import org.apache.camel.CamelContext;
020    import org.apache.camel.Endpoint;
021    import org.apache.camel.builder.RouteBuilder;
022    import org.apache.camel.model.ProcessorDefinition;
023    import org.apache.camel.model.RouteDefinition;
024    import org.apache.commons.logging.Log;
025    import org.apache.commons.logging.LogFactory;
026    
027    /**
028     * Provide some helper methods for building routes from scripting languages
029     * with a minimum amount of noise using state for the current node in the DSL
030     *
031     * @version $Revision: 2888 $
032     */
033    public abstract class ScriptRouteBuilder extends RouteBuilder {
034        private static final transient Log LOG = LogFactory.getLog(ScriptRouteBuilder.class);
035        protected ProcessorDefinition node;
036    
037        public ScriptRouteBuilder() {
038        }
039    
040        public ScriptRouteBuilder(CamelContext context) {
041            super(context);
042        }
043    
044        @Override
045        protected void configureRoute(RouteDefinition route) {
046            super.configureRoute(route);
047            this.node = route;
048        }
049    
050        public ProcessorDefinition to(String uri) {
051            return getNode().to(uri);
052        }
053        
054        public ProcessorDefinition to(Endpoint endpoint) {
055            return getNode().to(endpoint);
056        }
057    
058        public ProcessorDefinition getNode() {
059            if (node == null) {
060                throw new IllegalStateException("You must define a route first via the from() method");
061            }
062            return node;
063        }
064    
065        public void setNode(ProcessorDefinition node) {
066            this.node = node;
067    
068            LOG.info("Node is now: " + node);
069        }
070    }