org.apache.lens.server.query.save

Class SavedQueryServiceImpl

java.lang.Object

org.apache.hive.service.AbstractService

org.apache.hive.service.CompositeService

org.apache.lens.server.BaseLensService

org.apache.lens.server.query.save.SavedQueryServiceImpl

All Implemented Interfaces:

Externalizable, Serializable, org.apache.hive.service.Service, HealthCheckable, LensService, SavedQueryService, SessionValidator

public class SavedQueryServiceImpl
extends BaseLensService
implements SavedQueryService

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lens.server.BaseLensService

BaseLensService.SessionContext

Nested classes/interfaces inherited from class org.apache.hive.service.CompositeService

org.apache.hive.service.CompositeService.CompositeServiceShutdownHook

Nested classes/interfaces inherited from interface org.apache.hive.service.Service

org.apache.hive.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME

Constructor Summary

Constructors

Constructor and Description
SavedQueryServiceImpl(org.apache.hive.service.cli.CLIService cliService) Instantiates a new lens service.

Method Summary

Methods

Modifier and Type	Method and Description
void	delete(LensSessionHandle handle, long id) Deletes the saved query specified.
SavedQuery	get(LensSessionHandle handle, long id) Returns the saved query pointed out by the id.
HealthStatus	getHealthStatus() Returns the health status of the service.
void	grant(LensSessionHandle handle, long id, String sharingUser, String targetUserPath, String[] privileges) Grant permissions for users to do actions on the saved query.
void	init(org.apache.hadoop.hive.conf.HiveConf hiveConf)
ListResponse	list(LensSessionHandle handle, javax.ws.rs.core.MultivaluedMap<String,String> criteria, long start, long count) List the saved query from {start} to {count} matching filter denoted by criteria.
void	revoke(LensSessionHandle handle, long id, String sharingUser, String targetUserPath, String[] privileges) Revoke permissions from users to do actions on the saved query.
long	save(LensSessionHandle handle, SavedQuery savedQuery) Saves a query
void	update(LensSessionHandle handle, long id, SavedQuery savedQuery) Updates the specified saved query with the new object.

Methods inherited from class org.apache.lens.server.BaseLensService

acquire, acquire, closeSession, getCliService, getHiveSessionHandle, getLensConf, getLensConf, getNumberOfSessions, getServerDomain, getSession, getSessionManager, getValidPath, openSession, openSession, prepareStopping, readExternal, release, release, removePrefixBeforeURI, restoreSession, validateSession, writeExternal

Methods inherited from class org.apache.hive.service.CompositeService

getServices, start, stop

Methods inherited from class org.apache.hive.service.AbstractService

getHiveConf, getName, getServiceState, getStartTime, register, unregister

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

Constructor Detail

SavedQueryServiceImpl

public SavedQueryServiceImpl(org.apache.hive.service.cli.CLIService cliService)
                      throws LensException

Instantiates a new lens service.

Parameters:

cliService - the cli service

Throws:

LensException

Method Detail

init

public void init(org.apache.hadoop.hive.conf.HiveConf hiveConf)

Specified by:

init in interface org.apache.hive.service.Service

Overrides:

init in class org.apache.hive.service.CompositeService

getHealthStatus

public HealthStatus getHealthStatus()

Returns the health status of the service.

Specified by:

getHealthStatus in interface HealthCheckable

Returns:

save

public long save(LensSessionHandle handle,
        SavedQuery savedQuery)
          throws LensException

Saves a query

Specified by:

save in interface SavedQueryService

savedQuery - Saved query object.

Returns:

id of the created saved query.

Throws:

LensException

update

public void update(LensSessionHandle handle,
          long id,
          SavedQuery savedQuery)
            throws LensException

Updates the specified saved query with the new object.

Specified by:

update in interface SavedQueryService

Parameters:

handle - session handle of the query

id - id of the saved query.

savedQuery - Saved query object.

Throws:

LensException

delete

public void delete(LensSessionHandle handle,
          long id)
            throws LensException

Deletes the saved query specified.

Specified by:

delete in interface SavedQueryService

Parameters:

handle - session handle of the query

id - id of the saved query.

Throws:

LensException

get

public SavedQuery get(LensSessionHandle handle,
             long id)
               throws LensException

Returns the saved query pointed out by the id.

Specified by:

get in interface SavedQueryService

Parameters:

handle - session handle of the query

id - id of the saved query.

Returns:

saved query object.

Throws:

LensException

list

public ListResponse list(LensSessionHandle handle,
                javax.ws.rs.core.MultivaluedMap<String,String> criteria,
                long start,
                long count)
                  throws LensException

List the saved query from {start} to {count} matching filter denoted by criteria.

Specified by:

list in interface SavedQueryService

Parameters:

handle - session handle of the query

criteria - Multivalued map representing the criteria.

start - Displacement from the first matching record.

count - Number of records to fetch.

Returns:

list of queries.

Throws:

LensException

grant

public void grant(LensSessionHandle handle,
         long id,
         String sharingUser,
         String targetUserPath,
         String[] privileges)
           throws LensException

Grant permissions for users to do actions on the saved query.

Specified by:

grant in interface SavedQueryService

Parameters:

handle - session handle of the query

id - id of the query.

sharingUser - User invoking this action.

targetUserPath - Target users who have to get affected.

privileges - Privileges to be granted.

Throws:

LensException

revoke

public void revoke(LensSessionHandle handle,
          long id,
          String sharingUser,
          String targetUserPath,
          String[] privileges)
            throws LensException

Revoke permissions from users to do actions on the saved query.

Specified by:

revoke in interface SavedQueryService

Parameters:

handle - session handle of the query

id - id of the query.

sharingUser - User invoking this action.

targetUserPath - Target users who have to get affected.

privileges - Privileges to be granted.

Throws:

LensException