| /* |
| * 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 org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.support.ScheduledPollConsumer; |
| import org.apache.camel.util.ObjectHelper; |
| import org.apache.commons.httpclient.HttpClient; |
| import org.apache.commons.httpclient.HttpStatus; |
| import org.apache.commons.httpclient.methods.GetMethod; |
| |
| public class WeatherConsumer extends ScheduledPollConsumer { |
| public static final long DEFAULT_CONSUMER_DELAY = 60 * 60 * 1000L; |
| |
| private final String query; |
| |
| public WeatherConsumer(WeatherEndpoint endpoint, Processor processor, String query) { |
| super(endpoint, processor); |
| this.query = query; |
| } |
| |
| @Override |
| public WeatherEndpoint getEndpoint() { |
| return (WeatherEndpoint) super.getEndpoint(); |
| } |
| |
| @Override |
| protected int poll() throws Exception { |
| log.debug("Going to execute the Weather query {}", query); |
| HttpClient httpClient = ((WeatherComponent) getEndpoint().getComponent()).getHttpClient(); |
| GetMethod getMethod = new GetMethod(query); |
| try { |
| int status = httpClient.executeMethod(getMethod); |
| if (status != HttpStatus.SC_OK) { |
| log.warn("HTTP call for weather returned error status code {} - {} as a result with query: {}", status, getMethod.getStatusLine(), query); |
| return 0; |
| } |
| String weather = getEndpoint().getCamelContext().getTypeConverter().mandatoryConvertTo(String.class, getMethod.getResponseBodyAsStream()); |
| log.debug("Got back the Weather information {}", weather); |
| if (ObjectHelper.isEmpty(weather)) { |
| // empty response |
| return 0; |
| } |
| |
| Exchange exchange = getEndpoint().createExchange(); |
| String header = getEndpoint().getConfiguration().getHeaderName(); |
| if (header != null) { |
| exchange.getIn().setHeader(header, weather); |
| } else { |
| exchange.getIn().setBody(weather); |
| } |
| exchange.getIn().setHeader(WeatherConstants.WEATHER_QUERY, query); |
| |
| getProcessor().process(exchange); |
| |
| return 1; |
| } finally { |
| getMethod.releaseConnection(); |
| } |
| } |
| |
| } |