Package org.apache.druid.server

Class QueryResource

java.lang.Object

org.apache.druid.server.QueryResource

All Implemented Interfaces:

QueryCountStatsProvider

Direct Known Subclasses:

BrokerQueryResource

public class QueryResource
extends Object
implements QueryCountStatsProvider

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	QueryResource.QueryMetricCounter

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	APPLICATION_SMILE	Deprecated.
protected final AuthorizerMapper	authorizerMapper
static final String	ERROR_MESSAGE_TRAILER_HEADER
static final String	HEADER_ETAG
static final String	HEADER_IF_NONE_MATCH
static final String	HEADER_RESPONSE_CONTEXT	HTTP response header name containing ResponseContext serialized string
protected final com.fasterxml.jackson.databind.ObjectMapper	jsonMapper
protected static final EmittingLogger	log
static final EmittingLogger	NO_STACK_LOGGER
static final String	QUERY_ID_RESPONSE_HEADER
protected final QueryLifecycleFactory	queryLifecycleFactory
protected final QueryScheduler	queryScheduler
protected final ResourceIOReaderWriterFactory	resourceIOReaderWriterFactory
static final String	RESPONSE_COMPLETE_TRAILER_HEADER

Constructor Summary

Constructors

Constructor	Description
QueryResource(QueryLifecycleFactory queryLifecycleFactory, com.fasterxml.jackson.databind.ObjectMapper jsonMapper, QueryScheduler queryScheduler, AuthorizerMapper authorizerMapper, QueryResourceQueryResultPusherFactory queryResultPusherFactory, ResourceIOReaderWriterFactory resourceIOReaderWriterFactory)

Method Summary

Modifier and Type	Method	Description
javax.ws.rs.core.Response	cancelQuery(String queryId, javax.servlet.http.HttpServletRequest req)
javax.ws.rs.core.Response	doPost(InputStream in, String pretty, javax.servlet.http.HttpServletRequest req)
long	getFailedQueryCount()	Returns the number of failed queries during the emission period.
long	getInterruptedQueryCount()	Returns the number of queries interrupted due to cancellation during the emission period.
long	getSuccessfulQueryCount()	Returns the number of successful queries processed during the emission period.
long	getTimedOutQueryCount()	Returns the number of timed out queries during the emission period.
static void	transferEntityTag(ResponseContext context, javax.ws.rs.core.Response.ResponseBuilder builder)

Methods inherited from class java.lang.Object

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

Field Details

log

protected static final EmittingLogger log

NO_STACK_LOGGER

public static final EmittingLogger NO_STACK_LOGGER

APPLICATION_SMILE

@Deprecated
protected static final String APPLICATION_SMILE

Deprecated.

See Also:

• Constant Field Values

HEADER_RESPONSE_CONTEXT

public static final String HEADER_RESPONSE_CONTEXT

HTTP response header name containing ResponseContext serialized string

See Also:

• Constant Field Values

HEADER_IF_NONE_MATCH

public static final String HEADER_IF_NONE_MATCH

See Also:

• Constant Field Values

QUERY_ID_RESPONSE_HEADER

public static final String QUERY_ID_RESPONSE_HEADER

See Also:

• Constant Field Values

ERROR_MESSAGE_TRAILER_HEADER

public static final String ERROR_MESSAGE_TRAILER_HEADER

See Also:

• Constant Field Values

RESPONSE_COMPLETE_TRAILER_HEADER

public static final String RESPONSE_COMPLETE_TRAILER_HEADER

See Also:

• Constant Field Values

HEADER_ETAG

public static final String HEADER_ETAG

See Also:

• Constant Field Values

queryLifecycleFactory

protected final QueryLifecycleFactory queryLifecycleFactory

jsonMapper

protected final com.fasterxml.jackson.databind.ObjectMapper jsonMapper

queryScheduler

protected final QueryScheduler queryScheduler

authorizerMapper

protected final AuthorizerMapper authorizerMapper

resourceIOReaderWriterFactory

protected final ResourceIOReaderWriterFactory resourceIOReaderWriterFactory

Constructor Details

QueryResource

@Inject
public QueryResource(QueryLifecycleFactory queryLifecycleFactory,
 com.fasterxml.jackson.databind.ObjectMapper jsonMapper,
 QueryScheduler queryScheduler,
 AuthorizerMapper authorizerMapper,
 QueryResourceQueryResultPusherFactory queryResultPusherFactory,
 ResourceIOReaderWriterFactory resourceIOReaderWriterFactory)

Method Details

cancelQuery

public javax.ws.rs.core.Response cancelQuery(String queryId,
 @Context
 javax.servlet.http.HttpServletRequest req)

doPost

@Nullable
public javax.ws.rs.core.Response doPost(InputStream in,
 String pretty,
 @Context
 javax.servlet.http.HttpServletRequest req)
                                 throws IOException

Throws:

IOException

getSuccessfulQueryCount

public long getSuccessfulQueryCount()

Description copied from interface: QueryCountStatsProvider

Returns the number of successful queries processed during the emission period.

Specified by:

getSuccessfulQueryCount in interface QueryCountStatsProvider

getFailedQueryCount

public long getFailedQueryCount()

Description copied from interface: QueryCountStatsProvider

Returns the number of failed queries during the emission period.

Specified by:

getFailedQueryCount in interface QueryCountStatsProvider

getInterruptedQueryCount

public long getInterruptedQueryCount()

Description copied from interface: QueryCountStatsProvider

Returns the number of queries interrupted due to cancellation during the emission period.

Specified by:

getInterruptedQueryCount in interface QueryCountStatsProvider

getTimedOutQueryCount

public long getTimedOutQueryCount()

Description copied from interface: QueryCountStatsProvider

Returns the number of timed out queries during the emission period.

Specified by:

getTimedOutQueryCount in interface QueryCountStatsProvider

transferEntityTag

public static void transferEntityTag(ResponseContext context,
 javax.ws.rs.core.Response.ResponseBuilder builder)