Package org.apache.accumulo.core.clientImpl

Class ClientServiceEnvironmentImpl

java.lang.Object

org.apache.accumulo.core.clientImpl.ClientServiceEnvironmentImpl

All Implemented Interfaces:

PluginEnvironment, ServiceEnvironment

public class ClientServiceEnvironmentImpl
extends Object
implements ServiceEnvironment

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.accumulo.core.spi.common.ServiceEnvironment

ServiceEnvironment.Configuration

Constructor Summary

Constructors

Constructor	Description
ClientServiceEnvironmentImpl(ClientContext context)

Method Summary

Modifier and Type	Method	Description
ServiceEnvironment.Configuration	getConfiguration()
ServiceEnvironment.Configuration	getConfiguration(TableId tableId)
String	getTableName(TableId tableId)	Many Accumulo plugins are given table IDs as this is what Accumulo uses internally to identify tables.
<T> T	instantiate(String className, Class<T> base)	Instantiate a class using Accumulo's system classloader.
<T> T	instantiate(TableId tableId, String className, Class<T> base)	Instantiate a class using Accumulo's per table classloader.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClientServiceEnvironmentImpl

public ClientServiceEnvironmentImpl(ClientContext context)

Method Detail

getConfiguration

public ServiceEnvironment.Configuration getConfiguration()

Specified by:

getConfiguration in interface PluginEnvironment

Specified by:

getConfiguration in interface ServiceEnvironment

Returns:

A view of Accumulo's system level configuration. This is backed by system level config in zookeeper, which falls back to site configuration, which falls back to the default configuration.

getConfiguration

public ServiceEnvironment.Configuration getConfiguration(TableId tableId)

Specified by:

getConfiguration in interface PluginEnvironment

Specified by:

getConfiguration in interface ServiceEnvironment

Returns:

a view of a table's configuration. When requesting properties that start with table. the returned configuration may give different values for different tables. For other properties the returned configuration will return the same value as ServiceEnvironment.getConfiguration().

getTableName

public String getTableName(TableId tableId)
                    throws TableNotFoundException

Description copied from interface: PluginEnvironment

Many Accumulo plugins are given table IDs as this is what Accumulo uses internally to identify tables. If a plugin needs to log debugging information it can call this method to get the table name.

Specified by:

getTableName in interface PluginEnvironment

Throws:

TableNotFoundException

instantiate

public <T> T instantiate(String className,
                         Class<T> base)
                  throws ReflectiveOperationException,
                         IOException

Description copied from interface: PluginEnvironment

Instantiate a class using Accumulo's system classloader. The class must have a no argument constructor.

Specified by:

instantiate in interface PluginEnvironment

Parameters:

className - Fully qualified name of the class.

base - The expected super type of the class.

Throws:

ReflectiveOperationException

IOException

instantiate

public <T> T instantiate(TableId tableId,
                         String className,
                         Class<T> base)
                  throws ReflectiveOperationException,
                         IOException

Description copied from interface: PluginEnvironment

Instantiate a class using Accumulo's per table classloader. The class must have a no argument constructor.

Specified by:

instantiate in interface PluginEnvironment

className - Fully qualified name of the class.

base - The expected super type of the class.

Throws:

ReflectiveOperationException

IOException