/**
* Initializes store.
*
* @throws GridException If failed to initialize.
*/
private void init() throws GridException {
if (initGuard.compareAndSet(false, true)) {
if (log.isDebugEnabled()) log.debug("Initializing cache store.");
try {
if (sesFactory != null)
// Session factory has been provided - nothing to do.
return;
if (!F.isEmpty(hibernateCfgPath)) {
try {
URL url = new URL(hibernateCfgPath);
sesFactory = new Configuration().configure(url).buildSessionFactory();
if (log.isDebugEnabled()) log.debug("Configured session factory using URL: " + url);
// Session factory has been successfully initialized.
return;
} catch (MalformedURLException e) {
if (log.isDebugEnabled())
log.debug("Caught malformed URL exception: " + e.getMessage());
}
// Provided path is not a valid URL. File?
File cfgFile = new File(hibernateCfgPath);
if (cfgFile.exists()) {
sesFactory = new Configuration().configure(cfgFile).buildSessionFactory();
if (log.isDebugEnabled())
log.debug("Configured session factory using file: " + hibernateCfgPath);
// Session factory has been successfully initialized.
return;
}
// Provided path is not a file. Classpath resource?
sesFactory = new Configuration().configure(hibernateCfgPath).buildSessionFactory();
if (log.isDebugEnabled())
log.debug("Configured session factory using classpath resource: " + hibernateCfgPath);
} else {
if (hibernateProps == null) {
U.warn(
log, "No Hibernate configuration has been provided for store (will use default).");
hibernateProps = new Properties();
hibernateProps.setProperty("hibernate.connection.url", DFLT_CONN_URL);
hibernateProps.setProperty("hibernate.show_sql", DFLT_SHOW_SQL);
hibernateProps.setProperty("hibernate.hbm2ddl.auto", DFLT_HBM2DDL_AUTO);
}
Configuration cfg = new Configuration();
cfg.setProperties(hibernateProps);
assert resourceAvailable(MAPPING_RESOURCE);
cfg.addResource(MAPPING_RESOURCE);
sesFactory = cfg.buildSessionFactory();
if (log.isDebugEnabled())
log.debug("Configured session factory using properties: " + hibernateProps);
}
} catch (HibernateException e) {
throw new GridException("Failed to initialize store.", e);
} finally {
initLatch.countDown();
}
} else if (initLatch.getCount() > 0) U.await(initLatch);
if (sesFactory == null) throw new GridException("Cache store was not properly initialized.");
}
/**
* Test how IPC cache map works.
*
* @throws Exception If failed.
*/
@SuppressWarnings("unchecked")
public void testIpcCache() throws Exception {
Field cacheField = GridGgfsHadoopIpcIo.class.getDeclaredField("ipcCache");
cacheField.setAccessible(true);
Field activeCntField = GridGgfsHadoopIpcIo.class.getDeclaredField("activeCnt");
activeCntField.setAccessible(true);
Map<String, GridGgfsHadoopIpcIo> cache =
(Map<String, GridGgfsHadoopIpcIo>) cacheField.get(null);
String name = "ggfs:" + getTestGridName(0) + "@";
Configuration cfg = new Configuration();
cfg.addResource(U.resolveGridGainUrl(HADOOP_FS_CFG));
cfg.setBoolean("fs.ggfs.impl.disable.cache", true);
cfg.setBoolean(String.format(GridGgfsHadoopUtils.PARAM_GGFS_ENDPOINT_NO_EMBED, name), true);
// Ensure that existing IO is reused.
FileSystem fs1 = FileSystem.get(new URI("ggfs://" + name + "/"), cfg);
assertEquals(1, cache.size());
GridGgfsHadoopIpcIo io = null;
System.out.println("CACHE: " + cache);
for (String key : cache.keySet()) {
if (key.contains("10500")) {
io = cache.get(key);
break;
}
}
assert io != null;
assertEquals(1, ((AtomicInteger) activeCntField.get(io)).get());
// Ensure that when IO is used by multiple file systems and one of them is closed, IO is not
// stopped.
FileSystem fs2 = FileSystem.get(new URI("ggfs://" + name + "/abc"), cfg);
assertEquals(1, cache.size());
assertEquals(2, ((AtomicInteger) activeCntField.get(io)).get());
fs2.close();
assertEquals(1, cache.size());
assertEquals(1, ((AtomicInteger) activeCntField.get(io)).get());
Field stopField = GridGgfsHadoopIpcIo.class.getDeclaredField("stopping");
stopField.setAccessible(true);
assert !(Boolean) stopField.get(io);
// Ensure that IO is stopped when nobody else is need it.
fs1.close();
assert cache.isEmpty();
assert (Boolean) stopField.get(io);
}