protected void open() throws Exception {
// We expect to be run from the project directory.
// (Both eclipse and maven run junit tests from there).
String name = getSelfTestName();
// Make sure the project directory contains a selftest profile
// and content for the self test.
File src = getTestDataDir();
if (!src.exists()) {
throw new Exception("No selftest directory for " + name);
}
// Create temporary directories for Heritrix to run in.
File tmpDir = new File(getTmpDir(), "selftest");
File tmpTestDir = new File(tmpDir, name);
// If we have an old job lying around from a previous run, delete it.
File tmpJobs = new File(tmpTestDir, "jobs");
if (tmpJobs.exists()) {
FileUtils.deleteDirectory(tmpJobs);
}
// Copy the selftest's profile in the project directory to the
// default profile in the temporary Heritrix directory.
File tmpDefProfile = new File(tmpJobs, "selftest-job");
File profileTemplate = new File(src, "profile");
if (profileTemplate.exists()) {
org.apache.commons.io.FileUtils.copyDirectory(profileTemplate, tmpDefProfile);
} else {
org.archive.util.FileUtils.ensureWriteableDirectory(tmpDefProfile);
}
// Start up a Jetty that serves the selftest's content directory.
startHttpServer();
// Copy configuration for eg Logging over
File tmpConfDir = new File(tmpTestDir, "conf");
org.archive.util.FileUtils.ensureWriteableDirectory(tmpConfDir);
File srcConf = new File(src.getParentFile(), "conf");
FileUtils.copyDirectory(srcConf, tmpConfDir);
String crawlerBeansText =
FileUtils.readFileToString(new File(srcConf, "selftest-crawler-beans.cxml"));
crawlerBeansText = changeGlobalConfig(crawlerBeansText);
File crawlerBeans = new File(tmpDefProfile, "selftest-crawler-beans.cxml");
FileWriter fw = new FileWriter(crawlerBeans);
fw.write(crawlerBeansText);
fw.close();
startHeritrix(tmpTestDir.getAbsolutePath());
waitForCrawlFinish();
}
/**
* Create a backup of this given file, first by trying a "hard link", then by using a copy if hard
* linking is unavailable (either because it is unsupported or the origin and checkpoint
* directories are on different volumes).
*
* @param file
* @param destination
* @throws IOException
*/
private void hardlinkOrCopy(File file, File destination) throws IOException {
// For Linux/UNIX, try a hard link first.
Process link =
Runtime.getRuntime()
.exec("ln " + file.getAbsolutePath() + " " + destination.getAbsolutePath());
// TODO NTFS also supports hard links; add appropriate try
try {
link.waitFor();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (link.exitValue() != 0) {
// hard link failed
FileUtils.copyFile(file, destination);
}
}
/**
* Populates a new environment db from an old environment db or a persist log. If path to new
* environment is not provided, only logs the entries that would have been populated.
*
* @param sourcePath source of old entries: can be a path to an existing environment db, or a URL
* or path to a persist log
* @param envFile path to new environment db (or null for a dry run)
* @return number of records
* @throws DatabaseException
* @throws IOException
*/
public static int populatePersistEnv(String sourcePath, File envFile) throws IOException {
int count = 0;
StoredSortedMap<String, Map> historyMap = null;
EnhancedEnvironment targetEnv = null;
StoredClassCatalog classCatalog = null;
Database historyDB = null;
if (envFile != null) {
// set up target environment
FileUtils.ensureWriteableDirectory(envFile);
targetEnv = setupCopyEnvironment(envFile);
classCatalog = targetEnv.getClassCatalog();
historyDB =
targetEnv.openDatabase(null, URI_HISTORY_DBNAME, HISTORY_DB_CONFIG.toDatabaseConfig());
historyMap =
new StoredSortedMap<String, Map>(
historyDB,
new StringBinding(),
new SerialBinding<Map>(classCatalog, Map.class),
true);
}
try {
count = copyPersistSourceToHistoryMap(new File(sourcePath), historyMap);
} finally {
// in finally block so that we unlock the target env even if we
// failed to populate it
if (envFile != null) {
logger.info(count + " records imported from " + sourcePath + " to BDB env " + envFile);
historyDB.sync();
historyDB.close();
targetEnv.close();
} else {
logger.info(count + " records found in " + sourcePath);
}
}
return count;
}
public void testHQ() throws Exception {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setTransactional(true);
envConfig.setAllowCreate(true);
File envDir = new File(getTmpDir(), "AR");
if (envDir.exists()) {
FileUtils.deleteDir(envDir);
}
envDir.mkdirs();
Environment env = new Environment(envDir, envConfig);
// Open the class catalog database. Create it if it does not
// already exist.
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
StoredClassCatalog catalog =
new StoredClassCatalog(env.openDatabase(null, "classes", dbConfig));
AdaptiveRevisitHostQueue hq = new AdaptiveRevisitHostQueue("bok.hi.is", env, catalog, 1);
// Make the CrawlUris
CrawlURI[] curis = {null, null, null, null};
UURI uuri = UURIFactory.getInstance("http://bok.hi.is/1.html");
curis[0] = new CrawlURI(uuri);
curis[0].setVia(null);
uuri = UURIFactory.getInstance("http://bok.hi.is/2.html");
curis[1] = new CrawlURI(uuri);
curis[1].setVia(null);
uuri = UURIFactory.getInstance("http://bok.hi.is/3.html");
curis[2] = new CrawlURI(uuri);
curis[2].setVia(null);
uuri = UURIFactory.getInstance("http://bok.hi.is/4.html");
curis[3] = new CrawlURI(uuri);
curis[3].setVia(null);
assertTrue(
"HQ should be empty initially", hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_EMPTY);
assertEquals("Incorrect nextReadyTime on Empty", Long.MAX_VALUE, hq.getNextReadyTime());
assertEquals("Initial size of HQ should be 0", 0, hq.getSize());
assertEquals("Peek should return null when 'ready queue' is empty", null, hq.peek());
/*
* Add three CrawlURIs and ensures that the correct one is reported by
* peek(); All are added later then current time!
*/
curis[0].putLong(A_TIME_OF_NEXT_PROCESSING, System.currentTimeMillis()); // now
curis[1].putLong(A_TIME_OF_NEXT_PROCESSING, System.currentTimeMillis() + 5000); // in 5 sec
curis[2].putLong(A_TIME_OF_NEXT_PROCESSING, System.currentTimeMillis() + 20000); // in 20 sec.
hq.add(curis[0], false);
assertEquals("First CrawlURI should be top", curis[0].toString(), hq.peek().toString());
assertTrue(
"HQ should no longer be empty", hq.getState() != AdaptiveRevisitHostQueue.HQSTATE_EMPTY);
assertEquals("Size of HQ should now be 1", 1, hq.getSize());
/*
* Invoke next and ensure that the HQ is now busy (initial valence was
* set to 1). Also check for proper errors for a busy HQ. Such as when
* trying to reinvoke next().
*
*/
CrawlURI curi = hq.next(); // Should return curis[2]
assertEquals("next() did not return 'top' URI", curis[0].toString(), curi.toString());
assertTrue(
"HQ should now be busy, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_BUSY);
try {
hq.next();
assertTrue("next() should throw an IllegalStateException if HQ " + "not ready", false);
} catch (IllegalStateException e) {
// This is supposed to happen.
}
assertEquals("New top URI should be null", null, hq.peek());
hq.add(curis[1], false);
assertEquals("Second CrawlURI should be top", curis[1].toString(), hq.peek().toString());
assertEquals("Size of HQ should now be 2", 2, hq.getSize());
// Return it with next fetch time in the future.
curi.putLong(
A_TIME_OF_NEXT_PROCESSING,
hq.peek().getLong(A_TIME_OF_NEXT_PROCESSING) + 100000); // 100 sec behind current top.
hq.update(curi, false, 0);
assertEquals(
"Second CrawlURI should be still be top", curis[1].toString(), hq.peek().toString());
assertEquals("Size of HQ should still be 2", 2, hq.getSize());
hq.add(curis[2], false);
assertEquals("Second CrawlURI should still be top", curis[1].toString(), hq.peek().toString());
assertEquals("Size of HQ should now be 3", 3, hq.getSize());
/*
* If there are no URIs ready, the queue should snooze, even though no
* politeness demand has been made.
* <p>
* Confirms this and that it wakes up.
*/
assertTrue(
"HQ should be snoozed, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_SNOOZED);
// Wait past wakeup time
synchronized (this) {
wait(hq.getNextReadyTime() - System.currentTimeMillis() + 100);
}
assertTrue(
"HQ should now be ready, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_READY);
/*
* Re-adds a URI with a lower ready time which should promote it to the
* top of the queue. Checks if this happens correctly.
*
* Then tests an add override which would demote it back, ensures that
* this fails as it should (i.e. URIs time of next processing remains
* unchanged).
*/
curis[2].putLong(
A_TIME_OF_NEXT_PROCESSING,
curis[1].getLong(A_TIME_OF_NEXT_PROCESSING) - 1000); // 1 sec. prior to current top
hq.add(curis[2], true);
assertEquals("Size of HQ should still be 3", hq.getSize(), 3);
assertEquals("Third CrawlURI should be now be top", curis[2].toString(), hq.peek().toString());
curis[2].putLong(
A_TIME_OF_NEXT_PROCESSING,
curis[1].getLong(A_TIME_OF_NEXT_PROCESSING) + 10000); // 10 sec. later
hq.add(curis[2], true);
assertEquals("Size of HQ should still be 3", hq.getSize(), 3);
assertEquals("Third CrawlURI should still top", curis[2].toString(), hq.peek().toString());
/*
* Invoke next and ensure that the HQ is now busy (initial valence was
* set to 1). Also check for proper errors for a busy HQ. Such as when
* trying to reinvoke next().
*
*/
curi = hq.next(); // Should return curis[2]
assertEquals("next() did not return 'top' URI", curis[2].toString(), curi.toString());
assertTrue(
"HQ should now be busy, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_BUSY);
try {
hq.next();
assertTrue("next() should throw an IllegalStateException if HQ " + "not ready", false);
} catch (IllegalStateException e) {
// This is supposed to happen.
}
assertEquals("New top URI", curis[1].toString(), hq.peek().toString());
/*
* Add a URI while HQ is busy. Check if this succeeds normally.
*
*/
curis[3].putLong(
A_TIME_OF_NEXT_PROCESSING,
curis[1].getLong(A_TIME_OF_NEXT_PROCESSING)
- 1); // 1 msec. ahead of current top (order [2] 3 1 0)
hq.add(curis[3], false);
assertEquals("Size of HQ should now be 4", 4, hq.getSize());
/*
* Invoke update, first with an invalid URI (not the one issued by
* next() earlier), this should fail. Then with the correct one, this
* should succeed. Then finally test update again with an invalid URI
* (i.e. when no HQ has no outstanding URIs, that should fail.
*
* At each step, proper checks are made of state and that methods give
* appropriate errors.
*
* Updated URI is given low time of next processing to put it 'in front'
*/
try {
hq.update(curis[1], false, 0);
assertTrue("update() should not accept URI", false);
} catch (IllegalStateException e) {
// This is supposed to happen
}
// We do not change the 'time of next processing' on update
// so curis[2] should again be at top of queue.
long timeOfPolitenessWakeUp = System.currentTimeMillis() + 2000;
hq.update(curi, true, timeOfPolitenessWakeUp); // Wake in 5 sec.
assertTrue(
"HQ should be snoozed, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_SNOOZED);
try {
hq.update(curis[2], false, 0);
assertTrue("update() should not accept URI", false);
} catch (IllegalStateException e) {
// This is supposed to happen
}
assertEquals(
"HQs time of next ready should reflect set wait time ",
timeOfPolitenessWakeUp,
hq.getNextReadyTime());
/*
* Check if the HQ wakes up from it's 'snoozing'
*
*/
// Wait past wakeup time
synchronized (this) {
wait(hq.getNextReadyTime() - System.currentTimeMillis() + 100);
}
assertTrue(
"HQ should now be ready, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_READY);
assertEquals(
"HQs time of next ready should still be when it 'woken' " + "up.",
timeOfPolitenessWakeUp,
hq.getNextReadyTime());
/*
* Invoke next so that the HQ has a URI being processed. Then
* close the HQ and reopen it to ensure that this happens normally, i.e.
* state is recovered properly, including the restoration of the URI
* being processed, back to the regular queue (where it should be
* first).
*
* On recreating the HQ, set valence to 2.
*/
curi = hq.next(); // Should return curis[2]
assertEquals("next() did not return 'top' URI", curis[2].toString(), curi.toString());
assertTrue(
"HQ should now be busy, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_BUSY);
hq.close();
hq = new AdaptiveRevisitHostQueue("bok.hi.is", env, catalog, 2);
assertEquals("Size of HQ after reopening should now be 4", 4, hq.getSize());
assertTrue(
"HQ should be ready on reopen, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_READY);
assertEquals(
"CrawlURI 'in processing' before should be top", curi.toString(), hq.peek().toString());
/* Check if valence higher then 1 is properly handled.
*
* Invoke next(), check if still ready and new top URI.
*/
curi = hq.next(); // Should return curis[2]
assertEquals("next() did not return 'top' URI", curis[2].toString(), curi.toString());
assertTrue(
"HQ should still be ready, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_READY);
/* Invoke next() again, check if now busy.
*/
curi = hq.next(); // Should return curis[3]
assertEquals("next() did not return 'top' URI", curis[3].toString(), curi.toString());
assertTrue(
"HQ should be busy, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_BUSY);
assertEquals("Size of HQ should still be 4", 4, hq.getSize());
/* Update() second URI issued. Confirm HQ is now ready again. URI is
* given same time of next processing to put it 'in front'. (no snooze)
*/
hq.update(curi, false, 0);
assertTrue(
"HQ should now be ready, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_READY);
assertEquals("'updated' CrawlURI before should be top", curi.toString(), hq.peek().toString());
/* Update() again, ensure proper state. URI is NOT placed at front of
* queue and snooze time is given. But the HQ should not enter a
* snoozed state because the 'other' slot is free.
*/
hq.update(curis[2], true, System.currentTimeMillis() + 1000000); // 10sec
curis[3].putLong(
A_TIME_OF_NEXT_PROCESSING,
curis[1].getLong(A_TIME_OF_NEXT_PROCESSING) + 1000); // 1 sec. behind of current top
assertTrue(
"HQ should still be ready, is " + hq.getStateByName(),
hq.getState() == AdaptiveRevisitHostQueue.HQSTATE_READY);
assertEquals("Top CrawlURI before should be unchanged", curi.toString(), hq.peek().toString());
// TODO: Test sorting with scheduling directives.
/*
* Close the ARHostQueue and the Environment
*/
hq.close();
catalog.close();
env.close();
cleanUpOldFiles("AR");
}
