RenderUtils (org.dd4t:dd4t-mvc-support 2.0.3 API)

java.lang.Object
- org.dd4t.mvc.utils.RenderUtils

```
public class RenderUtils
extends Object
```

Method Summary

Methods
Modifier and Type	Method and Description
`static String`	`dispatchBufferedRequest(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, String url)` Dispatch a url to a request dispatcher while buffering the output in a string (and not directly to the response's writer).
`static List<ComponentPresentation>`	`filterComponentPresentations(List<ComponentPresentation> componentPresentations, String schemaName, String rootElementName, String viewName, String region)` Filters the list of component presentations based on the processors provided by schemaName and templateName.
`static String`	`fixUrl(String url)` Utility method to fix the url, by convention urls are lower case and all spaces are replaced by dashes (-)
`static String`	`getViewName(ComponentPresentation cp)` If the component template has a template parameter viewName, the value of that parameter is returned.
`static void`	`removeViewModelsFromRequest(javax.servlet.http.HttpServletRequest request)`
`static String`	`renderComponentPresentation(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, ComponentPresentation cp)` Renders a single component presentation using the dispatchers include method.
`static String`	`renderComponentPresentations(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, List<ComponentPresentation> componentPresentations)` Renders a list of component presentations.
`static String`	`renderDynamicComponentPresentation(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, String componentURI, String templateURI, String viewName)` Render a dynamic component presentation based on component / ct uri and view name
`static void`	`setDynamicComponentOnRequest(javax.servlet.http.HttpServletRequest request, Component component)`
`static void`	`setViewModelsOnRequest(javax.servlet.http.HttpServletRequest request, ComponentPresentation cp)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getViewName
```
public static String getViewName(ComponentPresentation cp)
```
If the component template has a template parameter viewName, the value of that parameter is returned. Otherwise the title of the component template is returned.

filterComponentPresentations

public static List<ComponentPresentation> filterComponentPresentations(List<ComponentPresentation> componentPresentations,
                                                       String schemaName,
                                                       String rootElementName,
                                                       String viewName,
                                                       String region)

Filters the list of component presentations based on the processors provided by schemaName and templateName. To align with the .Net variant of DD4T the schema and template matches uses the startsWith method and there also is support for the negation of the expression.

fixUrl
```
public static String fixUrl(String url)
```
Utility method to fix the url, by convention urls are lower case and all spaces are replaced by dashes (-)

Parameters:
url - , the original url

renderComponentPresentations

public static String renderComponentPresentations(javax.servlet.http.HttpServletRequest request,
                                  javax.servlet.http.HttpServletResponse response,
                                  List<ComponentPresentation> componentPresentations)
                                           throws FactoryException

Renders a list of component presentations.

Parameters:: request - , the http request; response - , the http response; componentPresentations - , the list with component presentations
Returns:: as string with all component presentations rendered and concatenated.
Throws:: FactoryException

renderComponentPresentation

public static String renderComponentPresentation(javax.servlet.http.HttpServletRequest request,
                                 javax.servlet.http.HttpServletResponse response,
                                 ComponentPresentation cp)
                                          throws FactoryException

Renders a single component presentation using the dispatchers include method.

Parameters:: request - the http request; response - the http response; cp - the component presentation
Returns:: the rendered component presentation as a string.
Throws:: FactoryException

renderDynamicComponentPresentation

public static String renderDynamicComponentPresentation(javax.servlet.http.HttpServletRequest request,
                                        javax.servlet.http.HttpServletResponse response,
                                        String componentURI,
                                        String templateURI,
                                        String viewName)
                                                 throws FactoryException

Render a dynamic component presentation based on component / ct uri and view name

Parameters:: request - the current Http Request; response - the current Http Response; componentURI - the Tcm Uri of the component; templateURI - the Tcm Uri of the template; viewName - the view name
Throws:: FactoryException

dispatchBufferedRequest

public static String dispatchBufferedRequest(javax.servlet.http.HttpServletRequest request,
                             javax.servlet.http.HttpServletResponse response,
                             String url)
                                      throws javax.servlet.ServletException,
                                             IOException

Dispatch a url to a request dispatcher while buffering the output in a string (and not directly to the response's writer).

Throws:: javax.servlet.ServletException; IOException

removeViewModelsFromRequest

public static void removeViewModelsFromRequest(javax.servlet.http.HttpServletRequest request)

setViewModelsOnRequest

public static void setViewModelsOnRequest(javax.servlet.http.HttpServletRequest request,
                          ComponentPresentation cp)

setDynamicComponentOnRequest

public static void setDynamicComponentOnRequest(javax.servlet.http.HttpServletRequest request,
                                Component component)

Class RenderUtils