Class AbstractQueryRequestHandler

java.lang.Object

org.eclipse.rdf4j.http.server.repository.handler.AbstractQueryRequestHandler

All Implemented Interfaces:

QueryRequestHandler

Direct Known Subclasses:

DefaultQueryRequestHandler

public abstract class AbstractQueryRequestHandler
extends Object
implements QueryRequestHandler

A base implementation to handle an HTTP query request.

Constructor Summary

Constructors

Constructor	Description
AbstractQueryRequestHandler(RepositoryResolver repositoryResolver)

Method Summary

Modifier and Type	Method	Description
protected abstract Object	evaluateQuery(Query query, long limit, long offset, boolean distinct)
protected Explanation	explainQuery(Query query, Explanation.Level explainLevel)
protected Optional<Explanation.Level>	getExplain(jakarta.servlet.http.HttpServletRequest request)
protected abstract org.springframework.web.servlet.ModelAndView	getExplainQueryResponse(jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response, Explanation explanation)
protected Optional<String>	getExplainRequestId(jakarta.servlet.http.HttpServletRequest request)
protected long	getLimit(jakarta.servlet.http.HttpServletRequest request)
protected org.springframework.web.servlet.ModelAndView	getModelAndView(jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response, boolean headersOnly, RepositoryConnection repositoryCon, org.springframework.web.servlet.View view, Object queryResult, FileFormatServiceRegistry<? extends FileFormat, ?> registry)
protected long	getOffset(jakarta.servlet.http.HttpServletRequest request)
protected abstract Query	getQuery(jakarta.servlet.http.HttpServletRequest request, RepositoryConnection repositoryCon, String queryString)
protected abstract String	getQueryString(jakarta.servlet.http.HttpServletRequest request, org.springframework.web.bind.annotation.RequestMethod requestMethod)
protected abstract FileFormatServiceRegistry<? extends FileFormat, ?>	getResultWriterFor(Query query)
protected abstract org.springframework.web.servlet.View	getViewFor(Query query)
boolean	handleCancelExplain(jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response)
org.springframework.web.servlet.ModelAndView	handleQueryRequest(jakarta.servlet.http.HttpServletRequest request, org.springframework.web.bind.annotation.RequestMethod requestMethod, jakarta.servlet.http.HttpServletResponse response)
protected boolean	isDistinct(jakarta.servlet.http.HttpServletRequest request)

Methods inherited from class Object

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

Constructor Details

AbstractQueryRequestHandler

public AbstractQueryRequestHandler(RepositoryResolver repositoryResolver)

Method Details

handleCancelExplain

public boolean handleCancelExplain(jakarta.servlet.http.HttpServletRequest request,
 jakarta.servlet.http.HttpServletResponse response)
                            throws IOException

Specified by:

handleCancelExplain in interface QueryRequestHandler

Throws:

IOException

handleQueryRequest

public org.springframework.web.servlet.ModelAndView handleQueryRequest(jakarta.servlet.http.HttpServletRequest request,
 org.springframework.web.bind.annotation.RequestMethod requestMethod,
 jakarta.servlet.http.HttpServletResponse response)
                                                                throws HTTPException,
IOException

Specified by:

handleQueryRequest in interface QueryRequestHandler

Throws:

HTTPException

IOException

explainQuery

protected Explanation explainQuery(Query query,
 Explanation.Level explainLevel)
                            throws ServerHTTPException

Throws:

ServerHTTPException

getExplainQueryResponse

protected abstract org.springframework.web.servlet.ModelAndView getExplainQueryResponse(jakarta.servlet.http.HttpServletRequest request,
 jakarta.servlet.http.HttpServletResponse response,
 Explanation explanation)

evaluateQuery

protected abstract Object evaluateQuery(Query query,
 long limit,
 long offset,
 boolean distinct)
                                 throws ClientHTTPException

Throws:

ClientHTTPException

getViewFor

protected abstract org.springframework.web.servlet.View getViewFor(Query query)

getResultWriterFor

protected abstract FileFormatServiceRegistry<? extends FileFormat, ?> getResultWriterFor(Query query)

getQueryString

protected abstract String getQueryString(jakarta.servlet.http.HttpServletRequest request,
 org.springframework.web.bind.annotation.RequestMethod requestMethod)
                                  throws HTTPException

Throws:

HTTPException

getQuery

protected abstract Query getQuery(jakarta.servlet.http.HttpServletRequest request,
 RepositoryConnection repositoryCon,
 String queryString)
                           throws IOException,
HTTPException

Throws:

IOException

HTTPException

getModelAndView

protected org.springframework.web.servlet.ModelAndView getModelAndView(jakarta.servlet.http.HttpServletRequest request,
 jakarta.servlet.http.HttpServletResponse response,
 boolean headersOnly,
 RepositoryConnection repositoryCon,
 org.springframework.web.servlet.View view,
 Object queryResult,
 FileFormatServiceRegistry<? extends FileFormat, ?> registry)
                                                                throws ClientHTTPException

Throws:

ClientHTTPException

isDistinct

protected boolean isDistinct(jakarta.servlet.http.HttpServletRequest request)
                      throws ClientHTTPException

Throws:

ClientHTTPException

getOffset

protected long getOffset(jakarta.servlet.http.HttpServletRequest request)
                  throws ClientHTTPException

Throws:

ClientHTTPException

getLimit

protected long getLimit(jakarta.servlet.http.HttpServletRequest request)
                 throws ClientHTTPException

Throws:

ClientHTTPException

getExplain

protected Optional<Explanation.Level> getExplain(jakarta.servlet.http.HttpServletRequest request)
                                          throws ClientHTTPException

Throws:

ClientHTTPException

getExplainRequestId

protected Optional<String> getExplainRequestId(jakarta.servlet.http.HttpServletRequest request)