本文整理匯總了Java中org.apache.hadoop.conf.Configuration.getInstances方法的典型用法代碼示例。如果您正苦於以下問題：Java Configuration.getInstances方法的具體用法？Java Configuration.getInstances怎麽用？Java Configuration.getInstances使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.conf.Configuration的用法示例。
在下文中一共展示了Configuration.getInstances方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: testPluggableIdentityProvider
import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
@Test
public void testPluggableIdentityProvider() {
Configuration conf = new Configuration();
conf.set(CommonConfigurationKeys.IPC_CALLQUEUE_IDENTITY_PROVIDER_KEY,
"org.apache.hadoop.ipc.UserIdentityProvider");
List<IdentityProvider> providers = conf.getInstances(
CommonConfigurationKeys.IPC_CALLQUEUE_IDENTITY_PROVIDER_KEY,
IdentityProvider.class);
assertTrue(providers.size() == 1);
IdentityProvider ip = providers.get(0);
assertNotNull(ip);
assertEquals(ip.getClass(), UserIdentityProvider.class);
}
示例2: startCommonServices
import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/** Start the services common to active and standby states */
private void startCommonServices(Configuration conf) throws IOException {
namesystem.startCommonServices(conf, haContext);
registerNNSMXBean();
if (NamenodeRole.NAMENODE != role) {
startHttpServer(conf);
httpServer.setNameNodeAddress(getNameNodeAddress());
httpServer.setFSImage(getFSImage());
}
rpcServer.start();
plugins = conf.getInstances(DFS_NAMENODE_PLUGINS_KEY,
ServicePlugin.class);
for (ServicePlugin p: plugins) {
try {
p.start(this);
} catch (Throwable t) {
LOG.warn("ServicePlugin " + p + " could not be started", t);
}
}
LOG.info(getRole() + " RPC up at: " + rpcServer.getRpcAddress());
if (rpcServer.getServiceRpcAddress() != null) {
LOG.info(getRole() + " service RPC up at: "
+ rpcServer.getServiceRpcAddress());
}
}
示例3: parseIdentityProvider
import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private IdentityProvider parseIdentityProvider(String ns, Configuration conf) {
List<IdentityProvider> providers = conf.getInstances(
ns + "." + CommonConfigurationKeys.IPC_CALLQUEUE_IDENTITY_PROVIDER_KEY,
IdentityProvider.class);
if (providers.size() < 1) {
LOG.info("IdentityProvider not specified, " +
"defaulting to UserIdentityProvider");
return new UserIdentityProvider();
}
return providers.get(0); // use the first
}
示例4: startPlugins
import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private void startPlugins(Configuration conf) {
plugins = conf.getInstances(DFS_DATANODE_PLUGINS_KEY, ServicePlugin.class);
for (ServicePlugin p: plugins) {
try {
p.start(this);
LOG.info("Started plug-in " + p);
} catch (Throwable t) {
LOG.warn("ServicePlugin " + p + " could not be started", t);
}
}
}