| /** |
| * 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.component.weather; |
| |
| import java.net.URL; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.impl.DefaultProducer; |
| import org.apache.camel.util.ObjectHelper; |
| |
| public class WeatherProducer extends DefaultProducer { |
| |
| private final String query; |
| |
| public WeatherProducer(WeatherEndpoint endpoint, String query) { |
| super(endpoint); |
| this.query = query; |
| } |
| |
| @Override |
| public WeatherEndpoint getEndpoint() { |
| return (WeatherEndpoint) super.getEndpoint(); |
| } |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| String q = query; |
| String location = exchange.getIn().getHeader(WeatherConstants.WEATHER_LOCATION, String.class); |
| if (location != null) { |
| q = getEndpoint().getConfiguration().getQuery(location); |
| } |
| |
| log.debug("Going to execute the Weather query {}", q); |
| String weather = getEndpoint().getCamelContext().getTypeConverter().mandatoryConvertTo(String.class, new URL(q)); |
| log.debug("Got back the Weather information {}", weather); |
| |
| if (ObjectHelper.isEmpty(weather)) { |
| throw new IllegalStateException("Got the unexpected value '" + weather + "' as the result of the query '" + q + "'"); |
| } |
| |
| String header = getEndpoint().getConfiguration().getHeaderName(); |
| if (header != null) { |
| exchange.getIn().setHeader(header, weather); |
| } else { |
| exchange.getIn().setBody(weather); |
| } |
| exchange.getIn().setHeader(WeatherConstants.WEATHER_QUERY, q); |
| } |
| } |