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yacy_search_server/test/java/net/yacy/crawler/HostBalancerTest.java

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3.5 KiB

package net.yacy.crawler;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import net.yacy.cora.document.id.DigestURL;
import net.yacy.cora.util.SpaceExceededException;
import net.yacy.crawler.retrieval.Request;
import net.yacy.crawler.robots.RobotsTxt;
import net.yacy.data.WorkTables;
import static net.yacy.kelondro.util.FileUtils.deletedelete;
import org.junit.Test;
import static org.junit.Assert.*;
public class HostBalancerTest {
final File queuesRoot = new File("test/DATA/INDEX/QUEUES");
final File datadir = new File("test/DATA");
/**
* Test of reopen existing HostBalancer cache to test/demonstrate issue with
* HostQueue for file: protocol
*/
@Test
public void testReopen() throws IOException, SpaceExceededException, InterruptedException {
boolean exceed134217727 = true;
int onDemandLimit = 1000;
String hostDir = "C:\\filedirectory";
// prepare one urls for push test
String urlstr = "file:///" + hostDir;
DigestURL url = new DigestURL(urlstr);
Request req = new Request(url, null);
deletedelete(queuesRoot); // start clean test
HostBalancer hb = new HostBalancer(queuesRoot, onDemandLimit, exceed134217727);
Thread.sleep(100); // wait for file operation
hb.clear();
Thread.sleep(100);
assertEquals("After clear", 0, hb.size());
WorkTables wt = new WorkTables(datadir);
RobotsTxt rob = new RobotsTxt(wt, null, 10);
String res = hb.push(req, null, rob); // push url
assertNull(res); // should have no error text
assertTrue(hb.has(url.hash())); // check existence
assertEquals("first push of one url", 1, hb.size()); // expected size=1
res = hb.push(req, null, rob); // push same url (should be rejected = double occurence)
assertNotNull(res); // should state double occurrence
assertTrue(hb.has(url.hash()));
assertEquals("second push of same url", 1, hb.size());
hb.close(); // close
Thread.sleep(200); // wait a bit for file operation
hb = new HostBalancer(queuesRoot, onDemandLimit, exceed134217727); // reopen balancer
Thread.sleep(200); // wait a bit for file operation
assertEquals("size after reopen (with one existing url)", 1, hb.size()); // expect size=1 from previous push
assertTrue("check existance of pushed url", hb.has(url.hash())); // check url exists (it fails as after reopen internal queue.hosthash is wrong)
res = hb.push(req, null, rob); // push same url as before (should be rejected, but isn't due to hosthash mismatch afte reopen)
assertNotNull("should state double occurence", res);
assertEquals("first push of same url after reopen", 1, hb.size()); // should stay size=1
assertTrue("check existance of pushed url", hb.has(url.hash()));
res = hb.push(req, null, rob);
assertNotNull("should state double occurence", res);
assertTrue("check existance of pushed url", hb.has(url.hash()));
assertEquals("second push of same url after reopen", 1, hb.size()); // double check, should stay size=1
// list all urls in hostbalancer
Iterator<Request> it = hb.iterator();
while (it.hasNext()) {
Request rres = it.next();
System.out.println(rres.toString());
}
hb.close();
}
}