com.waku.common.http.MyHttpClient.java Source code

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Here is the source code for com.waku.common.http.MyHttpClient.java

Source

/*
 * MyHttpClient.java
 * Created on 2011-5-25; Project to Colt2010; $Id: MyHttpClient.java 304 2013-04-20 12:11:12Z tristan $
 * 
 * Copyright (c) 2011, Xu Brothers and/or its affiliates. All rights reserved.
 * Xu Brothers PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.waku.common.http;

import java.io.ByteArrayInputStream;

import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
import org.apache.log4j.Logger;
import org.dom4j.Document;
import org.dom4j.io.DOMReader;
import org.w3c.tidy.Configuration;
import org.w3c.tidy.Tidy;

/**
 * @versin $Rev: 304 $, $Date: 2013-04-20 20:11:12 +0800 (, 20  2013) $
 * @author Jin
 */
@SuppressWarnings("deprecation")
public class MyHttpClient {

    static Logger logger = Logger.getLogger(MyHttpClient.class.getName());

    private static String getResponse(HttpClient httpclient, HttpRequestBase http) {
        try {
            logger.info("Executing ---> " + http.getRequestLine());
            return httpclient.execute(http, new BasicResponseHandler());
        } catch (Throwable e) {
            logger.info("Exception got ->", e);
            if (e.getMessage().equalsIgnoreCase("Internal Server Error")) {
                logger.info("Internal Server Error, seems not recovery-able!");
                return null;
            }
            logger.info("======== Retry will start after 10 sec ----->");
            try {
                Thread.sleep(10000);
            } catch (InterruptedException ie) {
                ie.printStackTrace();
            }
            return getResponse(httpclient, http);
        }
    }

    private static Document getResponseAndConvertToDom(HttpClient httpclient, HttpRequestBase httppost) {
        String response = getResponse(httpclient, httppost);
        if (response == null) {
            return null;
        }
        Tidy tidy = new Tidy();
        tidy.setShowWarnings(false);
        tidy.setCharEncoding(Configuration.UTF8);
        return new DOMReader().read(tidy.parseDOM(new ByteArrayInputStream(response.getBytes()), null));
    }

    public static Document getAsDom4jDoc(String url) {
        DefaultHttpClient httpclient = new DefaultHttpClient();
        httpclient.setHttpRequestRetryHandler(new DefaultHttpRequestRetryHandler());
        try {
            HttpGet httpGet = new HttpGet(url);
            return getResponseAndConvertToDom(httpclient, httpGet);
        } finally {
            try {
                httpclient.getConnectionManager().shutdown();
            } catch (Exception ignore) {
            }
        }
    }

    public static Document getAsDom4jDoc(String url, MultipartEntity reqEntity) {
        DefaultHttpClient httpclient = new DefaultHttpClient();
        httpclient.setHttpRequestRetryHandler(new DefaultHttpRequestRetryHandler());
        try {
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(reqEntity);
            return getResponseAndConvertToDom(httpclient, httpPost);
        } finally {
            try {
                httpclient.getConnectionManager().shutdown();
            } catch (Exception ignore) {
            }
        }
    }
}