Storm中对于Protocol进行的封装是怎样的

本篇文章为大家展示了Storm中对于Protocol进行的封装是怎样的，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。

对于Protocol的封装

package com.digitalpebble.storm.crawler.fetcher;import com.digitalpebble.storm.crawler.util.Configuration;public interface Protocol {    public ProtocolResponse getProtocolOutput(String url) throws Exception;        public void configure(Configuration conf);}

对于ProtoclFactory的封装

package com.digitalpebble.storm.crawler.fetcher;import java.net.URL;import java.util.WeakHashMap;import com.digitalpebble.storm.crawler.fetcher.asynchttpclient.AHProtocol;import com.digitalpebble.storm.crawler.util.Configuration;/** * @author Yin Shuai * */public class ProtocolFactory {    private final Configuration config;    private final WeakHashMap cache = new WeakHashMap();        public ProtocolFactory(Configuration conf) {        config = conf;    }    /** Returns an instance of the protocol to use for a given URL **/    public synchronized Protocol getProtocol(URL url) {        // get the protocol        String protocol = url.getProtocol();        Protocol pp = cache.get(protocol);        if (pp != null)            return pp;                // yuk! hardcoded for now        pp = new AHProtocol();        pp.configure(config);        cache.put(protocol,pp);        return pp;    }}

对于ProtocolResponse的封装

package com.digitalpebble.storm.crawler.fetcher;import java.util.HashMap;public class ProtocolResponse {    final byte[] content;    final int statusCode;    final HashMap metadata;    public ProtocolResponse(byte[] c, int s, HashMap md){        content = c;        statusCode = s;        metadata = md;    }    public byte[] getContent() {        return content;    }    public int getStatusCode() {        return statusCode;    }    public HashMap getMetadata() {        return metadata;    }}

上述内容就是Storm中对于Protocol进行的封装是怎样的，你们学到知识或技能了吗？如果还想学到更多技能或者丰富自己的知识储备，欢迎关注行业资讯频道。