com.mycompany.simple.weather.YahooParser.java Source code

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Here is the source code for com.mycompany.simple.weather.YahooParser.java

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/*
 * Copyright 2015 Sonatype.
 *
 * Licensed 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 com.mycompany.simple.weather;

import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import org.apache.log4j.Logger;
import org.dom4j.Document;
import org.dom4j.DocumentFactory;
import org.dom4j.io.SAXReader;

public class YahooParser {

    private static Logger log = Logger.getLogger(YahooParser.class);

    public Weather parse(InputStream inputStream) throws Exception {
        Weather weather = new Weather();

        log.info("Creating XML Reader");
        SAXReader xmlReader = createXmlReader();
        Document doc = xmlReader.read(inputStream);

        log.info("Parsing XML Response");
        weather.setCity(doc.valueOf("/rss/channel/y:location/@city"));
        weather.setRegion(doc.valueOf("/rss/channel/y:location/@region"));
        weather.setCountry(doc.valueOf("/rss/channel/y:location/@country"));
        weather.setCondition(doc.valueOf("/rss/channel/item/y:condition/@text"));
        weather.setTemp(doc.valueOf("/rss/channel/item/y:condition/@temp"));
        weather.setChill(doc.valueOf("/rss/channel/y:wind/@chill"));
        weather.setHumidity(doc.valueOf("/rss/channel/y:atmosphere/@humidity"));

        return weather;
    }

    private SAXReader createXmlReader() {
        Map<String, String> uris = new HashMap<String, String>();
        uris.put("y", "http://xml.weather.yahoo.com/ns/rss/1.0");

        DocumentFactory factory = new DocumentFactory();
        factory.setXPathNamespaceURIs(uris);

        SAXReader xmlReader = new SAXReader();
        xmlReader.setDocumentFactory(factory);
        return xmlReader;
    }
}