OrderToCsvProcessor.java

/**
 * 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 camelinaction;

import org.apache.camel.Exchange;
import org.apache.camel.Processor;

/**
 * A processor which translates an order in custom inhouse format
 * to a CSV format
 *
 * @version $Revision$
 */
public class OrderToCsvProcessor implements Processor {

    public void process(Exchange exchange) throws Exception {
        String custom = exchange.getIn().getBody(String.class);

        String id = custom.substring(0, 9);
        String customerId = custom.substring(10, 19);
        String date = custom.substring(20, 29);
        String items = custom.substring(30);
        String[] itemIds = items.split("@");

        StringBuilder csv = new StringBuilder();
        csv.append(id.trim());
        csv.append(",").append(date.trim());
        csv.append(",").append(customerId.trim());
        for (String item : itemIds) {
            csv.append(",").append(item.trim());
        }

        exchange.getIn().setBody(csv.toString());
    }

}