org.apache.accumulo.core.client.admin.NamespaceOperations java code examples

/**
 * Ensures the given Accumulo namespace exist, creating it if necessary
 *
 * @param schema Presto schema (Accumulo namespace)
 */
public void ensureNamespace(String schema)
{
  try {
    // If the table schema is not "default" and the namespace does not exist, create it
    if (!schema.equals(DEFAULT) && !connector.namespaceOperations().exists(schema)) {
      connector.namespaceOperations().create(schema);
    }
  }
  catch (AccumuloException | AccumuloSecurityException e) {
    throw new PrestoException(UNEXPECTED_ACCUMULO_ERROR, "Failed to check for existence or create Accumulo namespace", e);
  }
  catch (NamespaceExistsException e) {
    // Suppress race condition between test for existence and creation
    LOG.warn("NamespaceExistsException suppressed when creating " + schema);
  }
}

 namespaces = accumuloClient.namespaceOperations().list();
} catch (Exception e) {
 log.debug("Unable to obtain list of namespaces", e);

@Override
public int execute(final String fullCommand, final CommandLine cl, final Shell shellState)
  throws AccumuloException, AccumuloSecurityException, TableExistsException,
  TableNotFoundException, IOException, ClassNotFoundException, NamespaceExistsException,
  NamespaceNotFoundException {
 if (createNamespaceOptCopyConfig == null) {
  getOptions();
 }
 String namespace = cl.getArgs()[0];
 shellState.getAccumuloClient().namespaceOperations().create(namespace);
 // Copy options if flag was set
 Iterable<Entry<String,String>> configuration = null;
 if (cl.hasOption(createNamespaceOptCopyConfig.getOpt())) {
  String copy = cl.getOptionValue(createNamespaceOptCopyConfig.getOpt());
  if (shellState.getAccumuloClient().namespaceOperations().exists(namespace)) {
   configuration = shellState.getAccumuloClient().namespaceOperations().getProperties(copy);
  }
 }
 if (configuration != null) {
  for (Entry<String,String> entry : configuration) {
   if (Property.isValidTablePropertyKey(entry.getKey())) {
    shellState.getAccumuloClient().namespaceOperations().setProperty(namespace,
      entry.getKey(), entry.getValue());
   }
  }
 }
 return 0;
}

if (!shellState.getAccumuloClient().namespaceOperations().testClassLoad(namespace, classname,
  SortedKeyValueIterator.class.getName())) {
 throw new ShellCommandException(ErrorCode.INITIALIZATION_FAILURE,
shellState.getAccumuloClient().namespaceOperations().attachIterator(namespace, setting, scopes);

assertFalse(ops.exists(namespace));
  switch (i) {
   case 0:
    ops.addConstraint(namespace, NumericValueConstraint.class.getName());
    fail();
    break;
   case 1:
    ops.attachIterator(namespace, setting);
    fail();
    break;
   case 2:
    ops.checkIteratorConflicts(namespace, setting, EnumSet.of(IteratorScope.scan));
    fail();
    break;
   case 3:
    ops.delete(namespace);
    fail();
    break;
   case 4:
    ops.getIteratorSetting(namespace, "thing", IteratorScope.scan);
    fail();
    break;
   case 5:
    ops.getProperties(namespace);
    fail();
    break;
   case 6:
    ops.listConstraints(namespace);

namespace = "__CREATE_NAMESPACE_WITH_PERM_TEST__";
loginAs(testUser);
test_user_conn.namespaceOperations().create(namespace);
loginAs(rootUser);
if (!root_conn.namespaceOperations().list().contains(namespace))
 throw new IllegalStateException("Should be able to create a namespace");
break;
namespace = "__DROP_NAMESPACE_WITH_PERM_TEST__";
loginAs(rootUser);
root_conn.namespaceOperations().create(namespace);
loginAs(testUser);
test_user_conn.namespaceOperations().delete(namespace);
loginAs(rootUser);
if (root_conn.namespaceOperations().list().contains(namespace))
 throw new IllegalStateException("Should be able to delete a namespace");
break;
String namespace2 = namespace + "2";
loginAs(rootUser);
root_conn.namespaceOperations().create(namespace);
loginAs(testUser);
test_user_conn.namespaceOperations().setProperty(namespace,
  Property.TABLE_BLOOM_ERRORRATE.getKey(), "003.14159%");
loginAs(rootUser);
Map<String,String> propies = map(root_conn.namespaceOperations().getProperties(namespace));
if (!propies.get(Property.TABLE_BLOOM_ERRORRATE.getKey()).equals("003.14159%"))
 throw new IllegalStateException("Should be able to set a table property");
loginAs(testUser);

assertFalse(c.namespaceOperations().exists(namespace));
assertFalse(c.tableOperations().exists(t1));
assertFalse(c.tableOperations().exists(t2));
c.namespaceOperations().create(namespace);
c.tableOperations().create(t1);
c.tableOperations().create(t0);
assertTrue(c.namespaceOperations().exists(namespace));
assertTrue(c.tableOperations().exists(t1));
assertTrue(c.tableOperations().exists(t0));
c.namespaceOperations().setProperty(namespace, k, v);
assertTrue(checkNamespaceHasProp(namespace, k, v));
assertTrue(checkTableHasProp(t1, k, v));
c.namespaceOperations().removeProperty(namespace, k);
assertFalse(checkNamespaceHasProp(namespace, k, v));
assertFalse(checkTableHasProp(t1, k, v));
c.namespaceOperations().setProperty(Namespaces.DEFAULT_NAMESPACE, k, v);
assertFalse(checkNamespaceHasProp(namespace, k, v));
assertFalse(checkTableHasProp(t1, k, v));
c.namespaceOperations().setProperty(namespace, k2, v2);
c.tableOperations().setProperty(t2, k2, table_v2);
assertTrue(checkNamespaceHasProp(namespace, k2, v2));
c.tableOperations().delete(t2);
c.tableOperations().delete(t0);
c.namespaceOperations().delete(namespace);

@Test
public void renameNamespaceWithTable() throws Exception {
 String namespace2 = namespace + "_renamed";
 String t1 = namespace + ".t";
 String t2 = namespace2 + ".t";
 c.namespaceOperations().create(namespace);
 c.tableOperations().create(t1);
 assertTrue(c.namespaceOperations().exists(namespace));
 assertTrue(c.tableOperations().exists(t1));
 assertFalse(c.namespaceOperations().exists(namespace2));
 assertFalse(c.tableOperations().exists(t2));
 String namespaceId = c.namespaceOperations().namespaceIdMap().get(namespace);
 String tableId = c.tableOperations().tableIdMap().get(t1);
 c.namespaceOperations().rename(namespace, namespace2);
 assertFalse(c.namespaceOperations().exists(namespace));
 assertFalse(c.tableOperations().exists(t1));
 assertTrue(c.namespaceOperations().exists(namespace2));
 assertTrue(c.tableOperations().exists(t2));
 // verify id's didn't change
 String namespaceId2 = c.namespaceOperations().namespaceIdMap().get(namespace2);
 String tableId2 = c.tableOperations().tableIdMap().get(t2);
 assertEquals(namespaceId, namespaceId2);
 assertEquals(tableId, tableId2);
}

@Test
public void verifyIteratorInheritance() throws Exception {
 String t1 = namespace + ".1";
 c.namespaceOperations().create(namespace);
 c.tableOperations().create(t1);
 String iterName = namespace + "_iter";
 assertFalse(c.namespaceOperations().listIterators(namespace).containsKey(iterName));
 assertFalse(c.tableOperations().listIterators(t1).containsKey(iterName));
 c.namespaceOperations().checkIteratorConflicts(namespace, setting,
   EnumSet.allOf(IteratorScope.class));
 c.namespaceOperations().attachIterator(namespace, setting);
 sleepUninterruptibly(2, TimeUnit.SECONDS);
 try {
  c.namespaceOperations().checkIteratorConflicts(namespace, setting,
    EnumSet.allOf(IteratorScope.class));
  fail();
 IteratorSetting setting2 = c.namespaceOperations().getIteratorSetting(namespace,
   setting.getName(), IteratorScope.scan);
 assertEquals(setting, setting2);
 assertTrue(c.namespaceOperations().listIterators(namespace).containsKey(iterName));
 assertTrue(c.tableOperations().listIterators(t1).containsKey(iterName));
 s = c.createScanner(t1, Authorizations.EMPTY);
 c.namespaceOperations().removeIterator(namespace, setting.getName(),
   EnumSet.allOf(IteratorScope.class));
 sleepUninterruptibly(2, TimeUnit.SECONDS);
 assertFalse(c.namespaceOperations().listIterators(namespace).containsKey(iterName));

@Test(expected = NamespaceNotEmptyException.class)
public void deleteNonEmptyNamespace() throws Exception {
 String tableName1 = namespace + ".1";
 assertFalse(c.namespaceOperations().exists(namespace));
 assertFalse(c.tableOperations().exists(tableName1));
 c.namespaceOperations().create(namespace);
 c.tableOperations().create(tableName1);
 assertTrue(c.namespaceOperations().exists(namespace));
 assertTrue(c.tableOperations().exists(tableName1));
 c.namespaceOperations().delete(namespace); // should fail
}

 && !shellState.getAccumuloClient().namespaceOperations().exists(namespace)) {
throw new NamespaceNotFoundException(null, namespace, null);
    + ", still removing from zookeeper if it's there.");
 shellState.getAccumuloClient().namespaceOperations().removeProperty(namespace, property);
 Shell.log.debug("Successfully deleted namespace configuration option.");
} else {
  new ColumnVisibility(value); // validate that it is a valid expression
 shellState.getAccumuloClient().namespaceOperations().setProperty(namespace, property,
   value);
 Shell.log.debug("Successfully set table configuration option.");
   shellState.getContext(), Tables.getTableId(shellState.getContext(), tableName)));
 for (Entry<String,String> e : shellState.getAccumuloClient().namespaceOperations()
   .getProperties(n)) {
  namespaceConfig.put(e.getKey(), e.getValue());
 acuconf = shellState.getAccumuloClient().tableOperations().getProperties(tableName);
} else if (namespace != null) {
 acuconf = shellState.getAccumuloClient().namespaceOperations().getProperties(namespace);

@Test
public void listNamespaces() throws Exception {
 SortedSet<String> namespaces = c.namespaceOperations().list();
 Map<String,String> map = c.namespaceOperations().namespaceIdMap();
 assertEquals(2, namespaces.size());
 assertEquals(2, map.size());
 assertNull(map.get(namespace));
 c.namespaceOperations().create(namespace);
 namespaces = c.namespaceOperations().list();
 map = c.namespaceOperations().namespaceIdMap();
 assertEquals(3, namespaces.size());
 assertEquals(3, map.size());
 assertNotNull(map.get(namespace));
 c.namespaceOperations().delete(namespace);
 namespaces = c.namespaceOperations().list();
 map = c.namespaceOperations().namespaceIdMap();
 assertEquals(2, namespaces.size());
 assertEquals(2, map.size());

@Test
public void notInstancePreferredVolumeChooser() throws Exception {
 log.info("Starting notInstancePreferredVolumeChooser");
 // Create namespace
 Connector connector = getConnector();
 connector.namespaceOperations().create(namespace1);
 // Set properties on the namespace
 String propertyName = Property.TABLE_VOLUME_CHOOSER.getKey();
 String volume = PreferredVolumeChooser.class.getName();
 connector.namespaceOperations().setProperty(namespace1, propertyName, volume);
 propertyName = "table.custom.preferredVolumes";
 volume = v3.toString();
 connector.namespaceOperations().setProperty(namespace1, propertyName, volume);
 // Create table1 on namespace1
 String tableName = namespace1 + ".1";
 connector.tableOperations().create(tableName);
 String tableID = connector.tableOperations().tableIdMap().get(tableName);
 // Add 10 splits to the table
 addSplits(connector, tableName);
 // Write some data to the table
 writeAndReadData(connector, tableName);
 // Verify the new files are written to the Volumes specified
 verifyVolumes(connector, tableName, TabletsSection.getRange(tableID),
   v1.toString() + "," + v2.toString() + "," + v4.toString());
}

c.namespaceOperations().create(namespace);
c.tableOperations().create(t1);
assertTrue(c.tableOperations().exists(t1));
assertFalse(c.namespaceOperations().exists(namespace2));
assertFalse(c.tableOperations().exists(t2));
assertFalse(c.tableOperations().exists(t3));
c.namespaceOperations().create(namespace2);
c.tableOperations().create(t2);
c.tableOperations().create(t3);
assertTrue(c.namespaceOperations().exists(namespace2));
assertFalse(c.tableOperations().exists(t2));
assertFalse(c.tableOperations().exists(t3));
assertFalse(checkTableHasProp(t1, k2, k2v1));
assertFalse(checkTableHasProp(t1, k2, k2v2));
c.namespaceOperations().setProperty(namespace, k1, k1v1);
c.namespaceOperations().setProperty(namespace2, k1, k1v2);
c.namespaceOperations().setProperty(namespace, k2, k2v1);
c.namespaceOperations().setProperty(namespace2, k2, k2v1);
c.tableOperations().setProperty(t1, k2, k2v2);
assertTrue(checkNamespaceHasProp(namespace, k1, k1v1));
assertTrue(c.namespaceOperations().exists(namespace2));
assertTrue(c.tableOperations().exists(t1));
assertTrue(c.tableOperations().exists(t2));

@Test
public void verifyConstraintInheritance() throws Exception {
 String t1 = namespace + ".1";
 c.namespaceOperations().create(namespace);
 c.tableOperations().create(t1, new NewTableConfiguration().withoutDefaultIterators());
 String constraintClassName = NumericValueConstraint.class.getName();
   c.namespaceOperations().listConstraints(namespace).containsKey(constraintClassName));
 assertFalse(c.tableOperations().listConstraints(t1).containsKey(constraintClassName));
 c.namespaceOperations().addConstraint(namespace, constraintClassName);
 boolean passed = false;
 for (int i = 0; i < 5; i++) {
  if (!c.namespaceOperations().listConstraints(namespace).containsKey(constraintClassName)) {
   Thread.sleep(500);
   continue;
 Integer namespaceNum = null;
 for (int i = 0; i < 5; i++) {
  namespaceNum = c.namespaceOperations().listConstraints(namespace).get(constraintClassName);
  if (null == namespaceNum) {
   Thread.sleep(500);
 c.namespaceOperations().removeConstraint(namespace, namespaceNum);
 passed = false;
 for (int i = 0; i < 5; i++) {
  if (c.namespaceOperations().listConstraints(namespace).containsKey(constraintClassName)) {
   Thread.sleep(500);
   continue;

public static String getNamespaceOpt(final CommandLine cl, final Shell shellState)
  throws NamespaceNotFoundException, AccumuloException, AccumuloSecurityException {
 String namespace = null;
 if (cl.hasOption(ShellOptions.namespaceOption)) {
  namespace = cl.getOptionValue(ShellOptions.namespaceOption);
  if (!shellState.getAccumuloClient().namespaceOperations().exists(namespace)) {
   throw new NamespaceNotFoundException(namespace, namespace,
     "specified namespace that doesn't exist");
  }
 } else {
  throw new NamespaceNotFoundException(null, null, "no namespace specified");
 }
 return namespace;
}

for (String constraint : cl.getArgs()) {
 if (namespace != null) {
  if (!shellState.getAccumuloClient().namespaceOperations().testClassLoad(namespace,
    constraint, Constraint.class.getName())) {
   throw new ShellCommandException(ErrorCode.INITIALIZATION_FAILURE,
       + Constraint.class.getName());
  i = shellState.getAccumuloClient().namespaceOperations().addConstraint(namespace,
    constraint);
  shellState.getReader().println("Added constraint " + constraint + " to namespace "
 i = Integer.parseInt(constraint);
 if (namespace != null) {
  shellState.getAccumuloClient().namespaceOperations().removeConstraint(namespace, i);
  shellState.getReader()
    .println("Removed constraint " + i + " from namespace " + namespace);
if (namespace != null) {
 for (Entry<String,Integer> property : shellState.getAccumuloClient().namespaceOperations()
   .listConstraints(namespace).entrySet()) {
  shellState.getReader().println(property.toString());

 @Override
 public void visit(State state, Environment env, Properties props) throws Exception {
  Connector conn = env.getConnector();

  Random rand = (Random) state.get("rand");

  @SuppressWarnings("unchecked")
  List<String> namespaces = (List<String>) state.get("namespaces");

  String namespace = namespaces.get(rand.nextInt(namespaces.size()));

  try {
   conn.namespaceOperations().create(namespace);
   log.debug("Created namespace " + namespace);
  } catch (NamespaceExistsException e) {
   log.debug("Create namespace " + namespace + " failed, it exists");
  }
 }
}

int choice = Integer.parseInt(parts[1]);
Property property = tableSettings[choice].property;
if (env.getConnector().namespaceOperations().exists(namespace)) {
 log.debug("Setting " + property.getKey() + " on " + namespace + " back to "
   + property.getDefaultValue());
 try {
  env.getConnector().namespaceOperations().setProperty(namespace, property.getKey(),
    property.getDefaultValue());
 } catch (AccumuloException ex) {

@Test
public void testModifyingPermissions() throws Exception {
 String tableName = namespace + ".modify";
 c.namespaceOperations().create(namespace);
 c.tableOperations().create(tableName);
 assertTrue(
   NamespacePermission.READ));
 c.namespaceOperations().delete(namespace);

Javadoc

Provides an API for administering namespaces All tables exist in a namespace. The default namespace has no name, and is used if an explicit namespace is not specified. Fully qualified table names look like "namespaceName.tableName". Tables in the default namespace are fully qualified simply as "tableName".

Most used methods

create
Create an empty namespace with no initial configuration. Valid names for a namespace contain letters
exists
A method to check if a namespace exists in Accumulo.
list
Retrieve a list of namespaces in Accumulo.
getProperties
Gets properties of a namespace, which are inherited by tables in this namespace. Note that recently
addConstraint
Add a new constraint to a namespace.
attachIterator
Add an iterator to a namespace on the given scopes.
delete
Delete an empty namespace
getIteratorSetting
Get the settings for an iterator.
listConstraints
List constraints on a namespace with their assigned numbers.
listIterators
Get a list of iterators for this namespace.
namespaceIdMap
Get a mapping of namespace name to internal namespace id.
removeConstraint
Remove a constraint from a namespace.

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How to useNamespaceOperations in org.apache.accumulo.core.client.admin

Best Java code snippets using org.apache.accumulo.core.client.admin.NamespaceOperations (Showing top 20 results out of 315)

How to use
NamespaceOperations
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org.apache.accumulo.core.client.admin