org.apache.sling.api.scripting

Interface SlingScriptHelper

All Known Implementing Classes:

ScriptHelper

@ProviderType
public interface SlingScriptHelper

The SlingScriptHelper interface defines the API of a helper class which is provided to the scripts called from sling through the global sling variable.

Method Summary

Modifier and Type	Method and Description
void	dispose() Deprecated. This method is deprecated since version 2.1 and will be removed. It should never be called by clients.
void	forward(@NotNull Resource resource) Same as forward(Resource,RequestDispatcherOptions), but using empty options.
void	forward(@NotNull Resource resource, RequestDispatcherOptions options) Helper method to forward the request to a Servlet or script for the given resource and options.
void	forward(@NotNull Resource resource, java.lang.String requestDispatcherOptions) Helper method to forward the request to a Servlet or script for the given resource and requestDispatcherOptions.
void	forward(@NotNull java.lang.String path) Same as forward(String,RequestDispatcherOptions), but using empty options.
void	forward(@NotNull java.lang.String path, RequestDispatcherOptions options) Helper method to forward the request to a Servlet or script for the given path and options.
void	forward(@NotNull java.lang.String path, java.lang.String requestDispatcherOptions) Helper method to forward the request to a Servlet or script for the given path and requestDispatcherOptions.
@NotNull SlingHttpServletRequest	getRequest() Returns the SlingHttpServletRequest representing the input of the request.
@NotNull SlingHttpServletResponse	getResponse() Returns the SlingHttpServletResponse representing the output of the request.
@NotNull SlingScript	getScript() Returns the SlingScript being called to handle the request.
<ServiceType> ServiceType	getService(@NotNull java.lang.Class<ServiceType> serviceType) Lookup a single service.
<ServiceType> ServiceType[]	getServices(@NotNull java.lang.Class<ServiceType> serviceType, java.lang.String filter) Lookup one or several services.
void	include(@NotNull Resource resource) Same as include(Resource,RequestDispatcherOptions), but using empty options.
void	include(@NotNull Resource resource, RequestDispatcherOptions options) Helper method to include the result of processing the request for the given resource and options.
void	include(@NotNull Resource resource, java.lang.String requestDispatcherOptions) Helper method to include the result of processing the request for the given resource and requestDispatcherOptions.
void	include(@NotNull java.lang.String path) Same as include(String,RequestDispatcherOptions), but using empty options.
void	include(@NotNull java.lang.String path, RequestDispatcherOptions options) Helper method to include the result of processing the request for the given path and options.
void	include(@NotNull java.lang.String path, java.lang.String requestDispatcherOptions) Helper method to include the result of processing the request for the given path and requestDispatcherOptions.

Method Detail

getRequest

@NotNull
@NotNull SlingHttpServletRequest getRequest()

Returns the SlingHttpServletRequest representing the input of the request.

Returns:

The request

getResponse

@NotNull
@NotNull SlingHttpServletResponse getResponse()

Returns the SlingHttpServletResponse representing the output of the request.

Returns:

The response

getScript

@NotNull
@NotNull SlingScript getScript()

Returns the SlingScript being called to handle the request.

Returns:

The script

include

void include(@NotNull
             @NotNull java.lang.String path)

Same as include(String,RequestDispatcherOptions), but using empty options.

Parameters:

path - The path to include

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

include

void include(@NotNull
             @NotNull java.lang.String path,
             java.lang.String requestDispatcherOptions)

Helper method to include the result of processing the request for the given path and requestDispatcherOptions. This method is intended to be implemented as follows:

 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(path,
     "option:xyz");
 if (dispatcher != null) {
     dispatcher.include(getRequest(), getResponse());
 }
 

This method creates a RequestDispatcherOptions object by calling the RequestDispatcherOptions(String) constructor.

Parameters:

path - The path to the resource to include.

requestDispatcherOptions - influence the rendering of the included Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

See Also:

RequestDispatcherOptions(String), include(String, RequestDispatcherOptions)

include

void include(@NotNull
             @NotNull java.lang.String path,
             RequestDispatcherOptions options)

Helper method to include the result of processing the request for the given path and options. This method is intended to be implemented as follows:

 RequestDispatcherOptions opts = new RequestDispatcherOptions();
 opts.put("option", "xyz");
 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(path, opts);
 if (dispatcher != null) {
     dispatcher.include(getRequest(), getResponse());
 }
 

Parameters:

path - The path to the resource to include.

options - influence the rendering of the included Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

See Also:

RequestDispatcherOptions, include(String, String)

include

void include(@NotNull
             @NotNull Resource resource)

Same as include(Resource,RequestDispatcherOptions), but using empty options.

Parameters:

resource - The resource to include

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

include

void include(@NotNull
             @NotNull Resource resource,
             java.lang.String requestDispatcherOptions)

Helper method to include the result of processing the request for the given resource and requestDispatcherOptions. This method is intended to be implemented as follows:

 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(resource,
     "option:xyz");
 if (dispatcher != null) {
     dispatcher.include(getRequest(), getResponse());
 }
 

This method creates a RequestDispatcherOptions object by calling the RequestDispatcherOptions(String) constructor.

Parameters:

resource - The resource to include.

requestDispatcherOptions - influence the rendering of the included Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

See Also:

RequestDispatcherOptions(String), include(String, RequestDispatcherOptions)

include

void include(@NotNull
             @NotNull Resource resource,
             RequestDispatcherOptions options)

Helper method to include the result of processing the request for the given resource and options. This method is intended to be implemented as follows:

 RequestDispatcherOptions opts = new RequestDispatcherOptions();
 opts.put("option", "xyz");
 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(resource, opts);
 if (dispatcher != null) {
     dispatcher.include(getRequest(), getResponse());
 }
 

Parameters:

resource - The resource to include.

options - influence the rendering of the included Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

See Also:

RequestDispatcherOptions, include(String, String)

forward

void forward(@NotNull
             @NotNull java.lang.String path)

Same as forward(String,RequestDispatcherOptions), but using empty options.

Parameters:

path - The path to forward to

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

forward

void forward(@NotNull
             @NotNull java.lang.String path,
             java.lang.String requestDispatcherOptions)

Helper method to forward the request to a Servlet or script for the given path and requestDispatcherOptions. This method is intended to be implemented as follows:

 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(path,
     "option:xyz");
 if (dispatcher != null) {
     dispatcher.forward(getRequest(), getResponse());
 }
 

This method creates a RequestDispatcherOptions object by calling the RequestDispatcherOptions(String) constructor.

Parameters:

path - The path to the resource to forward to.

requestDispatcherOptions - influence the rendering of the forwarded Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

See Also:

RequestDispatcherOptions(String), forward(String, RequestDispatcherOptions)

forward

void forward(@NotNull
             @NotNull java.lang.String path,
             RequestDispatcherOptions options)

Helper method to forward the request to a Servlet or script for the given path and options. This method is intended to be implemented as follows:

 RequestDispatcherOptions opts = new RequestDispatcherOptions();
 opts.put("option", "xyz");
 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(path, opts);
 if (dispatcher != null) {
     dispatcher.forward(getRequest(), getResponse());
 }
 

Parameters:

path - The path to the resource to forward the request to.

options - influence the rendering of the forwarded Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

java.lang.IllegalStateException - If the respoonse has already been committed

See Also:

RequestDispatcherOptions

forward

void forward(@NotNull
             @NotNull Resource resource)

Same as forward(Resource,RequestDispatcherOptions), but using empty options.

Parameters:

resource - The resource to forward to.

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

forward

void forward(@NotNull
             @NotNull Resource resource,
             java.lang.String requestDispatcherOptions)

Helper method to forward the request to a Servlet or script for the given resource and requestDispatcherOptions. This method is intended to be implemented as follows:

 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(resource,
     "option:xyz");
 if (dispatcher != null) {
     dispatcher.forward(getRequest(), getResponse());
 }
 

This method creates a RequestDispatcherOptions object by calling the RequestDispatcherOptions(String) constructor.

Parameters:

resource - The resource to forward to.

requestDispatcherOptions - influence the rendering of the forwarded Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

See Also:

RequestDispatcherOptions(String), forward(String, RequestDispatcherOptions)

forward

void forward(@NotNull
             @NotNull Resource resource,
             RequestDispatcherOptions options)

Helper method to forward the request to a Servlet or script for the given resource and options. This method is intended to be implemented as follows:

 RequestDispatcherOptions opts = new RequestDispatcherOptions();
 opts.put("option", "xyz");
 RequestDispatcher dispatcher = getRequest().getRequestDispatcher(resource, opts);
 if (dispatcher != null) {
     dispatcher.forward(getRequest(), getResponse());
 }
 

Parameters:

resource - The resource to forward the request to.

options - influence the rendering of the forwarded Resource

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

java.lang.IllegalStateException - If the respoonse has already been committed

See Also:

RequestDispatcherOptions

getService

@Nullable
<ServiceType> ServiceType getService(@NotNull
                                               @NotNull java.lang.Class<ServiceType> serviceType)

Lookup a single service.

If multiple such services exist, the service with the highest ranking (as specified in its Constants.SERVICE_RANKING property) is returned. If there is a tie in ranking, the service with the lowest service ID (as specified in its Constants.SERVICE_ID property); that is, the service that was registered first is returned.

This is equal to the semantics from BundleContext.getServiceReference(Class).

Type Parameters:

ServiceType - The type (interface) of the service.

Parameters:

serviceType - The type (interface) of the service.

Returns:

The service instance, or null if no services are registered which implement the specified class.

getServices

@Nullable
<ServiceType> ServiceType[] getServices(@NotNull
                                                  @NotNull java.lang.Class<ServiceType> serviceType,
                                                  java.lang.String filter)

Lookup one or several services.

The returned array is sorted descending by service ranking (i.e. the service with the highest ranking is returned first). If there is a tie in ranking, the service with the lowest service ID (as specified in its Constants.SERVICE_ID property); that is, the service that was registered first is returned first.

Type Parameters:

ServiceType - The type (interface) of the service.

Parameters:

serviceType - The type (interface) of the service.

filter - An optional filter (LDAP-like, see OSGi spec)

Returns:

An array of services objects or null.

Throws:

InvalidServiceFilterSyntaxException - If the filter string is not a valid OSGi service filter string.

See Also:

Filter class in OSGi

dispose

@Deprecated
void dispose()

Deprecated. This method is deprecated since version 2.1 and will be removed. It should never be called by clients.

Dispose the helper. This method can be used to clean up the script helper after the script is run.