yacy_search_server/test/net/yacy/data/URLLicenseConcurrentTest.java
Michael Peter Christen 910a496c9f
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Java

// URLLicenseConcurrentTest.java
// Copyright 2016 by luccioman; https://github.com/luccioman
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package net.yacy.data;
import java.net.MalformedURLException;
import net.yacy.cora.document.id.DigestURL;
import net.yacy.cora.util.ConcurrentLog;
/**
* Test URLLicence reliability when used by concurrent threads
*
* @author luc
*
*/
public class URLLicenseConcurrentTest {
/**
* Thread emulating a client who tries to fetch some url content.
* @author luc
*
*/
private static class ClientThread extends Thread {
private String testURL = "https://yacy.net";
private int steps = 100000;
@Override
public void run() {
System.out.println(this.getName() + " started...");
DigestURL url = null;
try {
url = new DigestURL(this.testURL);
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
String normalizedURL = url.toNormalform(true);
for (int step = 0; step < this.steps; step++) {
String license = URLLicense.aquireLicense(url);
// You can eventually call here Thread.sleep()
String retrievedURL = URLLicense.releaseLicense(license);
if (!normalizedURL.equals(retrievedURL)) {
System.err.println("Licence lost! license : " + license + ", step : " + step + ", Thread : " + this.getName());
}
}
System.out.println(this.getName() + " finished!");
}
}
/**
* Runs clients concurrently : until the end, no error message should be displayed in console.
* @param args
*/
public static void main(String args[]) {
long beginTime = System.nanoTime();
try {
ClientThread[] threads = new ClientThread[10];
for (int i = 0; i < threads.length; i++) {
threads[i] = new URLLicenseConcurrentTest.ClientThread();
threads[i].setName("ClientThread" + i);
threads[i].start();
}
for (int i = 0; i < threads.length; i++) {
try {
threads[i].join();
} catch (InterruptedException e) {
}
}
} finally {
long time = System.nanoTime() - beginTime;
System.out.println("Test run in " + time / 1000000 + "ms");
ConcurrentLog.shutdown();
}
}
}