Domino同步到Elasticsearch由于是单线程,时间使用多,能否在原来的基础上进行优化?是的,由于使用java,可以支持多线程,使用多线程来一次性同步测试一下?
Domino使用多线程查询数据库在以前文章有介绍过了,以下几张图片简要介绍:
已经比没有使用多线程少500秒的时间,大大压缩同步时间。
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import com.alibaba.fastjson.JSONObject;
import lotus.domino.*;
public class JavaAgent extends AgentBase {
public void NotesMain() {
try {
Session session = getSession();
AgentContext agentContext = session.getAgentContext();
//(Your code goes here)
Date d1 = new Date();
Database db = session.getCurrentDatabase();
View view =db.getView("AllNames");
ViewEntryCollection vc=view.getAllEntries();
System.out.println(vc.getCount());
int setp=1000;
int taskSize =(int) Math.ceil(vc.getCount()/setp);
// 创建一个线程池
ExecutorService pool = Executors.newFixedThreadPool(taskSize>5?5:taskSize);
// 创建多个有返回值的任务
List<Future> list = new ArrayList<Future>();
for (int i = 0; i < taskSize; i++) {
Callable c = new MyCallable((i)*setp+1,(i+1)*setp);
// 执行任务并获取Future对象
Future f = pool.submit(c);
// System.out.println(">>>" + f.get().toString());
list.add(f);
}
// 关闭线程池
pool.shutdown();
// 获取所有并发任务的运行结果
for (Future f : list) {
// 从Future对象上获取任务的返回值,并输出到控制台
System.out.println(">>>" + f.get().toString());
}
Date d2 = new Date();
System.out.println(d2.getTime() - d1.getTime());
System.out.println("****** END ********");
} catch(Exception e) {
e.printStackTrace();
}
}
}
class MyCallable implements Callable<Object> {
private int start;
private int end;
//可以通过更改这MyCallable函数,从外传递参数进来,如unid等
MyCallable(int start,int end) {
this.start = start;
this.end = end;
}
public Object call() throws Exception {
System.out.println(">>>" + start + "任务启动");
Date dateTmp1 = new Date();
//Thread.sleep(1000);
ViewEntry tmpentry=null;
try
{
//创建NotesThread对象
NotesThread.sinitThread();
Session session = NotesFactory.createSession();
Database db = session.getCurrentDatabase();
View view =db.getView("AllNames");
ViewEntryCollection vc=view.getAllEntries();
ViewEntry entry=vc.getNthEntry(start);
int i=start;
System.out.println(">>>start" + start+">>>end" + end );
while (entry != null && i<=end) {
i++;
String temp="{\"Name\":\""+entry.getColumnValues().elementAt(0).toString()
+"\",\"EMail\":\""+entry.getColumnValues().elementAt(1).toString()+"\"}";
temp=HttpSendSoapPost("PUT","http://localhost:9200/xpages/ext/"+entry.getUniversalID(),temp);
System.out.println(i);
tmpentry = vc.getNextEntry();
entry.recycle();
entry = tmpentry;
}
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
//要注意回收
NotesThread.stermThread();
}
Date dateTmp2 = new Date();
long time = dateTmp2.getTime() - dateTmp1.getTime();
System.out.println(">>>" + start + "任务终止");
return start + "任务返回运行结果,当前任务时间【" + time + "毫秒】";
}
public static String HttpSendSoapPost(String Method,String strurl,String xml){
HttpURLConnection connection = null;
InputStream is = null;
BufferedReader br = null;
String result = null;// 返回结果字符串
OutputStream out = null;
//Date d1 = new Date();
try {
// 创建远程url连接对象
URL url = new URL(strurl);
// 通过远程url连接对象打开一个连接,强转成httpURLConnection类
connection = (HttpURLConnection) url.openConnection();
// 设置连接方式:GET,POST
if(Method.equals("")){
connection.setRequestMethod("POST");
}else{
connection.setRequestMethod(Method);
}
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "application/json");
//这里必须要写,否则出错
//connection.setRequestProperty("SOAPAction", "");
// 设置连接主机服务器的超时时间:15000毫秒
connection.setConnectTimeout(15000);
// 设置读取远程返回的数据时间:60000毫秒
connection.setReadTimeout(60000);
// 发送请求
connection.connect();
out = connection.getOutputStream(); // 获取输出流对象
connection.getOutputStream().write(xml.getBytes("UTF-8")); // 将要提交服务器的SOAP请求字符流写入输出流
out.flush();
out.close();
//System.out.println(connection.getResponseCode());
// 通过connection连接,获取输入流
if (connection.getResponseCode() == 200 || connection.getResponseCode() == 201) {
is = connection.getInputStream();
// 封装输入流is,并指定字符
br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
// 存放数据
StringBuffer sbf = new StringBuffer();
String temp = null;
while ((temp = br.readLine()) != null) {
sbf.append(temp);
sbf.append("\r\n");
}
result = sbf.toString();
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// 关闭资源
if (null != br) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != is) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
connection.disconnect();// 关闭远程连接
}
//System.out.println();
return result;
}
}