How to use

getInstance

method

in

org.apache.hadoop.hive.ql.exec.tez.DagUtils

/**
 * Constructor. We do not automatically connect, because we only want to
 * load tez classes when the user has tez installed.
 */
public TezSessionState(String sessionId, HiveConf conf) {
 this(DagUtils.getInstance(), conf);
 this.sessionId = sessionId;
}

public TezTask() {
 this(DagUtils.getInstance());
}

/**
 * Constructor. We do not automatically connect, because we only want to
 * load tez classes when the user has tez installed.
 */
public TezSessionState(String sessionId) {
 this(DagUtils.getInstance());
 this.sessionId = sessionId;
}

public TezTask() {
 this(DagUtils.getInstance());
}

ShimLoader.getHadoopShims();
URL hiveurl = new URL("jar:" + DagUtils.getInstance().getExecJarPathLocal(conf) + "!/");
JarURLConnection hiveconn = (JarURLConnection)hiveurl.openConnection();
JarFile hivejar = hiveconn.getJarFile();

ShimLoader.getHadoopShims();
URL hiveurl = new URL("jar:"+DagUtils.getInstance().getExecJarPathLocal()+"!/");
JarURLConnection hiveconn = (JarURLConnection)hiveurl.openConnection();
JarFile hivejar = hiveconn.getJarFile();

dag.setCredentials(job.getCredentials());
DagUtils utils = DagUtils.getInstance();
Context ctx = new Context(job);
MapWork mapWork = (MapWork) work.getAllWork().get(0);

dag.setCredentials(job.getCredentials());
DagUtils utils = DagUtils.getInstance();
Context ctx = new Context(job);
MapWork mapWork = (MapWork) work.getAllWork().get(0);

@Test
public void testCredentialsNotOverwritten() throws Exception {
 final UserGroupInformation testUser = UserGroupInformation.createUserForTesting("test_user", new String[0]);
 final DagUtils dagUtils = DagUtils.getInstance();
 Credentials originalCredentials = new Credentials();
 final Text testTokenAlias = new Text("my_test_token");
 @SuppressWarnings("unchecked")
 Token<? extends TokenIdentifier> testToken = mock(Token.class);
 originalCredentials.addToken(testTokenAlias, testToken);
 Credentials testUserCredentials = new Credentials();
 testUser.addCredentials(testUserCredentials);
 final BaseWork work = mock(BaseWork.class);
 final DAG dag = DAG.create("test_credentials_dag");
 dag.setCredentials(originalCredentials);
 testUser.doAs(new PrivilegedExceptionAction<Void>() {
  @Override
  public Void run() throws Exception {
   dagUtils.addCredentials(work, dag);
   return null;
  }
 });
 Token<? extends TokenIdentifier> actualToken = dag.getCredentials().getToken(testTokenAlias);
 assertEquals(testToken, actualToken);
}

 jc = DagUtils.getInstance().createConfiguration(conf);
} catch (IOException e) {
 throw new HiveException(e);

 jc = DagUtils.getInstance().createConfiguration(conf);
} catch (IOException e) {
 throw new HiveException(e);

/**
 * Constructor. We do not automatically connect, because we only want to
 * load tez classes when the user has tez installed.
 */
public TezSessionState(String sessionId) {
 this(DagUtils.getInstance());
 this.sessionId = sessionId;
}

public TezTask() {
 this(DagUtils.getInstance());
}

ShimLoader.getHadoopShims();
URL hiveurl = new URL("jar:"+DagUtils.getInstance().getExecJarPathLocal()+"!/");
JarURLConnection hiveconn = (JarURLConnection)hiveurl.openConnection();
JarFile hivejar = hiveconn.getJarFile();