org.apache.sling.api.scripting
Interface SlingScriptHelper

All Known Implementing Classes:

ScriptHelper

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

void	dispose() Dispose the helper.
void	forward(java.lang.String path) Same as forward(String,RequestDispatcherOptions), but using empty options.
void	forward(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(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.
SlingHttpServletRequest	getRequest() Returns the SlingHttpServletRequest representing the input of the request.
SlingHttpServletResponse	getResponse() Returns the SlingHttpServletResponse representing the output of the request.
SlingScript	getScript() Returns the SlingScript being called to handle the request.
<ServiceType> ServiceType	getService(java.lang.Class<ServiceType> serviceType) Lookup a single service
<ServiceType> ServiceType[]	getServices(java.lang.Class<ServiceType> serviceType, java.lang.String filter) Lookup one or several services
void	include(java.lang.String path) Same as include(String,RequestDispatcherOptions), but using empty options.
void	include(java.lang.String path, RequestDispatcherOptions options) Helper method to include the result of processing the request for the given path and options.
void	include(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

SlingHttpServletRequest getRequest()

Returns the SlingHttpServletRequest representing the input of the request.

getResponse

SlingHttpServletResponse getResponse()

Returns the SlingHttpServletResponse representing the output of the request.

getScript

SlingScript getScript()

Returns the SlingScript being called to handle the request.

include

void include(java.lang.String path)

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

Throws:

SlingIOException - Wrapping a IOException thrown while handling the include.

SlingServletException - Wrapping a ServletException thrown while handling the include.

include

void include(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.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.RequestDispatcherOptions(String), include(String, RequestDispatcherOptions)

include

void include(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)

forward

void forward(java.lang.String path)

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

Throws:

SlingIOException - Wrapping a IOException thrown while handling the forward.

SlingServletException - Wrapping a ServletException thrown while handling the forward.

forward

void forward(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.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.RequestDispatcherOptions(String), forward(String, RequestDispatcherOptions)

forward

void forward(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

getService

<ServiceType> ServiceType getService(java.lang.Class<ServiceType> serviceType)

Lookup a single service

Parameters:

serviceType - The type (interface) of the service.

Returns:

The service instance, or null if the service is not available.

getServices

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

Lookup one or several services

Parameters:

serviceType - The type (interface) of the service.

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

Returns:

The services object or null.

Throws:

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

dispose

void dispose()

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