Class ExploreServlet

java.lang.Object

org.eclipse.rdf4j.workbench.base.AbstractServlet

org.eclipse.rdf4j.workbench.base.AbstractRepositoryServlet

org.eclipse.rdf4j.workbench.base.TransformationServlet

org.eclipse.rdf4j.workbench.base.TupleServlet

org.eclipse.rdf4j.workbench.commands.ExploreServlet

All Implemented Interfaces:

jakarta.servlet.Servlet, RepositoryServlet

public class ExploreServlet
extends TupleServlet

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	ExploreServlet.ResultCursor	Class for keeping track of location within the result set, relative to offset and limit.

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	LIMIT
protected static final int	LIMIT_DEFAULT

Fields inherited from class TupleServlet

variables, xsl

Modifier and Type	Field	Description
protected String[]	variables
protected String	xsl

Fields inherited from class TransformationServlet

CONTEXT, cookies, INFO, NON_VERIFYING_PARSER_CONFIG

Modifier and Type	Field	Description
static final String	CONTEXT
protected CookieHandler	cookies
protected static final String	INFO
protected static final ParserConfig	NON_VERIFYING_PARSER_CONFIG

Fields inherited from class AbstractRepositoryServlet

info, manager, MANAGER_PARAM, repository, REPOSITORY_PARAM, vf

Modifier and Type	Field	Description
protected RepositoryInfo	info
protected RepositoryManager	manager
static final String	MANAGER_PARAM
protected Repository	repository
static final String	REPOSITORY_PARAM
protected ValueFactory	vf

Fields inherited from class AbstractServlet

ACCEPT, appConfig, APPLICATION_JAVASCRIPT, APPLICATION_SPARQL_RESULTS_XML, APPLICATION_XML, config, DEFAULT_JSONP_CALLBACK_PARAMETER, JSONP_CALLBACK_PARAMETER, JSONP_ENABLED, JSONP_VALIDATOR, log, MOZILLA, MSIE, SERVER_PASSWORD, SERVER_USER, SERVER_USER_PASSWORD, TEXT_HTML, TEXT_PLAIN, USER_AGENT

Modifier and Type	Field	Description
protected static final String	ACCEPT
protected AppConfiguration	appConfig
protected static final String	APPLICATION_JAVASCRIPT	This response content type is always used for JSONP results.
protected static final String	APPLICATION_SPARQL_RESULTS_XML	This response content type is used for SPARQL Results XML results in non-browser user agents or other cases where application/xml is not specifically requested.
protected static final String	APPLICATION_XML	This response content type is used in cases where application/xml is explicitly requested, or in cases where the user agent is known to be a commonly available browser.
protected jakarta.servlet.ServletConfig	config
protected static final String	DEFAULT_JSONP_CALLBACK_PARAMETER	This query parameter is only used in cases where the configuration property is not setup explicitly.
protected static final String	JSONP_CALLBACK_PARAMETER
protected static final String	JSONP_ENABLED	JSONP property for enabling/disabling jsonp functionality.
protected static final Pattern	JSONP_VALIDATOR
protected final org.slf4j.Logger	log
protected static final String	MOZILLA
protected static final String	MSIE
protected static final String	SERVER_PASSWORD	Deprecated.
protected static final String	SERVER_USER	Deprecated.
protected static final String	SERVER_USER_PASSWORD
protected static final String	TEXT_HTML
protected static final String	TEXT_PLAIN
protected static final String	USER_AGENT

Constructor Summary

Constructors

Constructor	Description
ExploreServlet()

Method Summary

Modifier and Type	Method	Description
String[]	getCookieNames()
protected ExploreServlet.ResultCursor	processResource(RepositoryConnection con, TupleResultBuilder builder, Value value, int offset, int limit, boolean render)	Query the repository for all instances of the given value, optionally writing the results into the HTTP response.
void	service(WorkbenchRequest req, jakarta.servlet.http.HttpServletResponse resp, String xslPath)
protected void	service(WorkbenchRequest req, jakarta.servlet.http.HttpServletResponse resp, TupleResultBuilder builder, RepositoryConnection con)

Methods inherited from class TupleServlet

service

Modifier and Type	Method	Description
protected void	service(TupleResultBuilder builder, RepositoryConnection con)

Methods inherited from class TransformationServlet

doPost, getCookieNames, init, service, service

Modifier and Type	Method	Description
protected void	doPost(WorkbenchRequest wreq, jakarta.servlet.http.HttpServletResponse resp, String xslPath)
String[]	getCookieNames(WorkbenchRequest req)
void	init(jakarta.servlet.ServletConfig config)
void	service(jakarta.servlet.http.HttpServletRequest req, jakarta.servlet.http.HttpServletResponse resp)
protected void	service(TupleResultBuilder writer, String xslPath)

Methods inherited from class AbstractRepositoryServlet

setRepository, setRepositoryInfo, setRepositoryManager

Modifier and Type	Method	Description
void	setRepository(Repository repository)
void	setRepositoryInfo(RepositoryInfo info)
void	setRepositoryManager(RepositoryManager manager)

Methods inherited from class AbstractServlet

checkJSONP, destroy, getBooleanResultFormat, getJSONPResultFormat, getResultWriter, getServletConfig, getServletInfo, getTupleResultBuilder, getTupleResultFormat, service

Modifier and Type	Method	Description
protected QueryResultWriter	checkJSONP(jakarta.servlet.http.HttpServletRequest req, OutputStream outputStream)
void	destroy()
protected QueryResultFormat	getBooleanResultFormat(jakarta.servlet.http.HttpServletRequest req, jakarta.servlet.ServletResponse resp)
protected QueryResultFormat	getJSONPResultFormat(jakarta.servlet.http.HttpServletRequest req, jakarta.servlet.ServletResponse resp)
protected QueryResultWriter	getResultWriter(jakarta.servlet.http.HttpServletRequest req, jakarta.servlet.ServletResponse resp, OutputStream outputStream)
jakarta.servlet.ServletConfig	getServletConfig()
String	getServletInfo()
protected TupleResultBuilder	getTupleResultBuilder(jakarta.servlet.http.HttpServletRequest req, jakarta.servlet.http.HttpServletResponse resp, OutputStream outputStream)	Gets a TupleResultBuilder based on the Accept header, and sets the result content type to the best available match for that, returning a builder that can be used to write out the results.
protected QueryResultFormat	getTupleResultFormat(jakarta.servlet.http.HttpServletRequest req, jakarta.servlet.ServletResponse resp)
final void	service(jakarta.servlet.ServletRequest req, jakarta.servlet.ServletResponse resp)

Methods inherited from class Object

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

Field Details

LIMIT

protected static final String LIMIT

See Also:

• Constant Field Values

LIMIT_DEFAULT

protected static final int LIMIT_DEFAULT

See Also:

• Constant Field Values

Constructor Details

ExploreServlet

public ExploreServlet()

Method Details

getCookieNames

public String[] getCookieNames()

Overrides:

getCookieNames in class TransformationServlet

service

public void service(WorkbenchRequest req,
 jakarta.servlet.http.HttpServletResponse resp,
 String xslPath)
             throws Exception

Overrides:

service in class TupleServlet

Throws:

Exception

service

protected void service(WorkbenchRequest req,
 jakarta.servlet.http.HttpServletResponse resp,
 TupleResultBuilder builder,
 RepositoryConnection con)
                throws BadRequestException,
RDF4JException

Overrides:

service in class TupleServlet

Throws:

BadRequestException

RDF4JException

processResource

protected ExploreServlet.ResultCursor processResource(RepositoryConnection con,
 TupleResultBuilder builder,
 Value value,
 int offset,
 int limit,
 boolean render)
                                               throws RDF4JException

Query the repository for all instances of the given value, optionally writing the results into the HTTP response.

Parameters:

con - the connection to the repository

builder - used for writing to the HTTP response

value - the value to query the repository for

offset - The result at which to start rendering results.

limit - The limit on the number of results to render.

render - If false, suppresses output to the HTTP response.

Returns:

The count of all triples in the repository using the given value.

Throws:

RDF4JException - if there is an issue iterating through results