org.apache.accumulo.master.tableOps

Class Utils

java.lang.Object

org.apache.accumulo.master.tableOps.Utils

public class Utils
extends Object

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
static void	checkNamespaceDoesNotExist(ServerContext context, String namespace, Namespace.ID namespaceId, TableOperation operation)
static void	checkTableDoesNotExist(ServerContext context, String tableName, Table.ID tableId, TableOperation operation)
static Lock	getIdLock()
static <T extends AbstractId> T	getNextId(String name, ServerContext context, Function<String,T> newIdFunction)
static Lock	getReadLock(Master env, AbstractId tableId, long tid)
static SortedSet<org.apache.hadoop.io.Text>	getSortedSetFromFile(org.apache.hadoop.fs.FSDataInputStream inputStream, boolean encoded) Given an input stream and a flag indicating if the file info is base64 encoded or not, retrieve the data from a file on the file system.
static Lock	getTableNameLock()
static long	reserveHdfsDirectory(Master env, String directory, long tid)
static long	reserveNamespace(Master env, Namespace.ID namespaceId, long id, boolean writeLock, boolean mustExist, TableOperation op)
static long	reserveTable(Master env, Table.ID tableId, long tid, boolean writeLock, boolean tableMustExist, TableOperation op)
static void	unreserveHdfsDirectory(Master env, String directory, long tid)
static void	unreserveNamespace(Master env, Namespace.ID namespaceId, long id, boolean writeLock)
static void	unreserveTable(Master env, Table.ID tableId, long tid, boolean writeLock)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Utils

public Utils()

Method Detail

checkTableDoesNotExist

public static void checkTableDoesNotExist(ServerContext context,
                                          String tableName,
                                          Table.ID tableId,
                                          TableOperation operation)
                                   throws AcceptableThriftTableOperationException

Throws:

AcceptableThriftTableOperationException

getNextId

public static <T extends AbstractId> T getNextId(String name,
                                                 ServerContext context,
                                                 Function<String,T> newIdFunction)
                                          throws AcceptableThriftTableOperationException

Throws:

AcceptableThriftTableOperationException

reserveTable

public static long reserveTable(Master env,
                                Table.ID tableId,
                                long tid,
                                boolean writeLock,
                                boolean tableMustExist,
                                TableOperation op)
                         throws Exception

Throws:

Exception

unreserveTable

public static void unreserveTable(Master env,
                                  Table.ID tableId,
                                  long tid,
                                  boolean writeLock)

unreserveNamespace

public static void unreserveNamespace(Master env,
                                      Namespace.ID namespaceId,
                                      long id,
                                      boolean writeLock)

reserveNamespace

public static long reserveNamespace(Master env,
                                    Namespace.ID namespaceId,
                                    long id,
                                    boolean writeLock,
                                    boolean mustExist,
                                    TableOperation op)
                             throws Exception

Throws:

Exception

reserveHdfsDirectory

public static long reserveHdfsDirectory(Master env,
                                        String directory,
                                        long tid)
                                 throws org.apache.zookeeper.KeeperException,
                                        InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

unreserveHdfsDirectory

public static void unreserveHdfsDirectory(Master env,
                                          String directory,
                                          long tid)
                                   throws org.apache.zookeeper.KeeperException,
                                          InterruptedException

Throws:

org.apache.zookeeper.KeeperException

InterruptedException

getIdLock

public static Lock getIdLock()

getTableNameLock

public static Lock getTableNameLock()

getReadLock

public static Lock getReadLock(Master env,
                               AbstractId tableId,
                               long tid)

checkNamespaceDoesNotExist

public static void checkNamespaceDoesNotExist(ServerContext context,
                                              String namespace,
                                              Namespace.ID namespaceId,
                                              TableOperation operation)
                                       throws AcceptableThriftTableOperationException

Throws:

AcceptableThriftTableOperationException

getSortedSetFromFile

public static SortedSet<org.apache.hadoop.io.Text> getSortedSetFromFile(org.apache.hadoop.fs.FSDataInputStream inputStream,
                                                                        boolean encoded)
                                                                 throws IOException

Given an input stream and a flag indicating if the file info is base64 encoded or not, retrieve the data from a file on the file system. It is assumed that the file is textual and not binary data.

Throws:

IOException