001    /**
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     *
010     * http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.camel.spring.xml;
019    
020    import org.springframework.beans.factory.BeanFactory;
021    
022    import java.util.ArrayList;
023    
024    public class BuilderStatement {
025        private ArrayList<BuilderAction> actions;
026        private Class returnType;
027    
028        public Object create(BeanFactory beanFactory, Object rootBuilder) {
029            Object currentBuilder = rootBuilder;
030            BuilderAction lastAction = null;
031            for (BuilderAction action : actions) {
032                // The last action may have left us without a builder to invoke next!
033                if (currentBuilder == null) {
034                    throw new IllegalArgumentException("Invalid configuration.  The '" + lastAction.getName() + "' action cannot be followed by the '" + action.getName() + "' action.");
035                }
036                currentBuilder = action.invoke(beanFactory, rootBuilder, currentBuilder);
037                lastAction = action;
038            }
039            return currentBuilder;
040        }
041    
042        public ArrayList<BuilderAction> getActions() {
043            return actions;
044        }
045    
046        public void setActions(ArrayList<BuilderAction> actions) {
047            this.actions = actions;
048        }
049    
050        public Class getReturnType() {
051            return returnType;
052        }
053    
054        public void setReturnType(Class returnType) {
055            this.returnType = returnType;
056        }
057    }