| /** |
| * 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.example.gae; |
| |
| import javax.xml.xpath.XPath; |
| import javax.xml.xpath.XPathFactory; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ReportGenerator implements Processor { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(RequestProcessor.class); |
| |
| public void process(Exchange exchange) throws Exception { |
| ReportData data = exchange.getIn().getBody(ReportData.class); |
| |
| XPathFactory xpfactory = XPathFactory.newInstance(); |
| XPath xpath = xpfactory.newXPath(); |
| |
| // Extract result values via XPath |
| String city = xpath.evaluate("//forecast_information/city/@data", data.getWeather()); |
| String cond = xpath.evaluate("//current_conditions/condition/@data", data.getWeather()); |
| String temp = xpath.evaluate("//current_conditions/temp_c/@data", data.getWeather()); |
| |
| if (city == null || city.length() == 0) { |
| city = data.getCity(); |
| cond = "<error retrieving current condition>"; |
| temp = "<error retrieving current temperature>"; |
| } |
| |
| String result = new StringBuilder() |
| .append("\n").append("Weather report for: ").append(city) |
| .append("\n").append("Current condition: ").append(cond) |
| .append("\n").append("Current temperature: ").append(temp).append(" (Celsius)").toString(); |
| |
| LOGGER.info("Get the result" + result); |
| exchange.getIn().setBody(result); |
| } |
| |
| } |