com.dianping.lion.db.DataSourceFetcher.java Source code

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Here is the source code for com.dianping.lion.db.DataSourceFetcher.java

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/**
 * Project: com.dianping.lion.lion-api-0.0.1-new
 * 
 * File Created at 2012-7-31
 * $Id$
 * 
 * Copyright 2010 dianping.com.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of
 * Dianping Company. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with dianping.com.
 */
package com.dianping.lion.db;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.log4j.Logger;

/**
 * DataSourceFetcher ??DB?
 * @author youngphy.yang
 *
 */
public class DataSourceFetcher {
    private static Logger logger = Logger.getLogger(DataSourceFetcher.class);

    private String host;
    private int port;
    private String protocal;
    private String path;
    /**
     * ?DB????'lionsrt1234_'+System.currentTimeMillis() / 60000 + 10
     */
    private String srtkey;

    private HttpClient httcClient;
    private GetMethod dsGetter;

    public void init() {
        httcClient = new HttpClient();
        httcClient.getHostConfiguration().setHost(host, port, protocal);
    }

    /**
     * ??DB?
     * @param lastFetchTime ?
     * @return
     */
    public String fetchDS(long lastFetchTime) {
        String dsContent = null;
        long minEffectionTime = System.currentTimeMillis() / 60000 + 10;
        String url = path + lastFetchTime + "&srtkey=" + srtkey + minEffectionTime;
        dsGetter = new GetMethod(url);
        try {
            httcClient.executeMethod(dsGetter);
            InputStream inputStream = dsGetter.getResponseBodyAsStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
            StringBuffer stringBuffer = new StringBuffer();
            String str = "";
            while ((str = br.readLine()) != null) {
                stringBuffer.append(str);
            }
            dsContent = stringBuffer.toString();
        } catch (Exception e) {
            logger.error("Job execution failed this time.", e);
            return null;
        }
        return dsContent;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public void setPort(int port) {
        this.port = port;
    }

    public void setProtocal(String protocal) {
        this.protocal = protocal;
    }

    public void setPath(String path) {
        this.path = path;
    }

    public String getSrtkey() {
        return srtkey;
    }

    public void setSrtkey(String srtkey) {
        this.srtkey = srtkey;
    }

}