com.xpert.faces.utils

Class FacesUtils

java.lang.Object

com.xpert.faces.utils.FacesUtils

public class FacesUtils
extends Object

Collection of utility methods for the JSF API

Author:

Ayslan

Field Summary

Fields

Modifier and Type	Field and Description
static String	FILE_DOWNLOAD_TOKEN

Constructor Summary

Constructors

Constructor and Description
FacesUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	addCookie(String name, String value) Add Cookie no HttpServletResponse
static void	addToSession(String attributeName, Object value) Add the object in Http session map
static void	clearComponent(javax.faces.component.UIComponent pComponent) Método responsável por limpar os valores de um determinado componente Ex: ao passar um form o método vai limpar seus componentes "filhos"
static void	download(byte[] bytes, String contentType, String fileName) Generates a file to download.
static void	download(byte[] bytes, String contentType, String fileName, boolean attachment) Generates a file to download.
static void	download(InputStream inputStream, String contentType, String fileName) Generates a file to download.
static void	download(InputStream inputStream, String contentType, String fileName, boolean attachment) Generates a file to download.
static <T> T	evaluateExpressionGet(String expression) Get a bean form EL context
static javax.faces.component.UIComponent	findComponent(javax.faces.component.UIComponent base, String id)
static javax.faces.component.UIComponent	findComponentInRoot(String id) Method to find a component in ViewRoot
static <T> T	getBeanByEl(String beanName) Get a bean form EL context.
static String	getBrowser()
static javax.servlet.http.Cookie	getCookie(String cookieName)
static String	getCookieValue(String cookieName)
static javax.faces.context.FacesContext	getFacesContext(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Create the FacesContext.
static Object	getFromSession(String attributeName) Get a object from Http Session
static String	getHtml(javax.faces.component.UIComponent component) Return generated HTML from component.
static String	getIP()
static String	getParameter(String parameterName) Get the value of the parameter in request callin HttpServletRequest.getParameter.
static String	getRealPath(String caminho)
static javax.servlet.http.HttpServletRequest	getRequest() Get the current Http request from JSF "ExternalContext"
static javax.servlet.http.HttpServletResponse	getResponse() Get the current Http response from JSF "ExternalContext"
static javax.servlet.ServletContext	getServletContext() Get the ServletContext from JSF "ExternalContext
static void	invalidateSession() Invalidate the current Http session using HttpSession.invalidate()
static void	redirect(String url)
static void	removeCookie(String nomeCookie) Removes Cookie
static void	removeFromSession(String attributeName) Remove a object from session
static void	setNewValueBean(String beanName, String attribute, Object newValue)
static void	setValueEl(String expression, Object newValue)

Methods inherited from class java.lang.Object

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

Field Detail

FILE_DOWNLOAD_TOKEN

public static final String FILE_DOWNLOAD_TOKEN

See Also:

Constant Field Values

Constructor Detail

FacesUtils

public FacesUtils()

Method Detail

getHtml

public static String getHtml(javax.faces.component.UIComponent component)

Return generated HTML from component.

Parameters:

component -

Returns:

HTML from component

getFromSession

public static Object getFromSession(String attributeName)

Get a object from Http Session

Parameters:

attributeName - Object name in session

Returns:

getParameter

public static String getParameter(String parameterName)

Get the value of the parameter in request callin HttpServletRequest.getParameter.

Parameters:

parameterName -

Returns:

addToSession

public static void addToSession(String attributeName,
                Object value)

Add the object in Http session map

Parameters:

attributeName -

value -

removeFromSession

public static void removeFromSession(String attributeName)

Remove a object from session

Parameters:

attributeName -

invalidateSession

public static void invalidateSession()

Invalidate the current Http session using HttpSession.invalidate()

getRequest

public static javax.servlet.http.HttpServletRequest getRequest()

Get the current Http request from JSF "ExternalContext"

Returns:

HttpServletRequest get from JSF

getResponse

public static javax.servlet.http.HttpServletResponse getResponse()

Get the current Http response from JSF "ExternalContext"

Returns:

HttpServletResponse get from JSF

getServletContext

public static javax.servlet.ServletContext getServletContext()

Get the ServletContext from JSF "ExternalContext

Returns:

redirect

public static void redirect(String url)

getBeanByEl

public static <T> T getBeanByEl(String beanName)

Get a bean form EL context. Same as "evaluateExpressionGet"

Type Parameters:

T -

Parameters:

beanName -

Returns:

evaluateExpressionGet

public static <T> T evaluateExpressionGet(String expression)

Get a bean form EL context

Type Parameters:

T -

Parameters:

expression -

Returns:

setValueEl

public static void setValueEl(String expression,
              Object newValue)

setNewValueBean

public static void setNewValueBean(String beanName,
                   String attribute,
                   Object newValue)

clearComponent

public static void clearComponent(javax.faces.component.UIComponent pComponent)

Método responsável por limpar os valores de um determinado componente Ex: ao passar um form o método vai limpar seus componentes "filhos"

Parameters:

pComponent -

getRealPath

public static String getRealPath(String caminho)

addCookie

public static void addCookie(String name,
             String value)

Add Cookie no HttpServletResponse

Parameters:

name -

value -

getBrowser

public static String getBrowser()

getCookie

public static javax.servlet.http.Cookie getCookie(String cookieName)

getCookieValue

public static String getCookieValue(String cookieName)

removeCookie

public static void removeCookie(String nomeCookie)

Removes Cookie

Parameters:

nomeCookie -

findComponentInRoot

public static javax.faces.component.UIComponent findComponentInRoot(String id)

Method to find a component in ViewRoot

Parameters:

id -

Returns:

findComponent

public static javax.faces.component.UIComponent findComponent(javax.faces.component.UIComponent base,
                                              String id)

download

public static void download(byte[] bytes,
            String contentType,
            String fileName)

Generates a file to download. This method put a cookie named 'fileDownloadToken', this cookie can be used to control the downloaded file by the "javax.faces.ViewState" (wich is a param submited in JSF forms)

Parameters:

bytes -

contentType -

fileName -

download

public static void download(byte[] bytes,
            String contentType,
            String fileName,
            boolean attachment)

Generates a file to download. This method put a cookie named 'fileDownloadToken', this cookie can be used to control the downloaded file by the "javax.faces.ViewState" (wich is a param submited in JSF forms)

Parameters:

bytes -

contentType -

fileName -

attachment - indicates attachment in header

download

public static void download(InputStream inputStream,
            String contentType,
            String fileName)

Generates a file to download. This method put a cookie named 'fileDownloadToken', this cookie can be used to control the downloaded file by the "javax.faces.ViewState" (wich is a param submited in JSF forms)

Parameters:

inputStream -

contentType -

fileName -

download

public static void download(InputStream inputStream,
            String contentType,
            String fileName,
            boolean attachment)

Generates a file to download. This method put a cookie named 'fileDownloadToken', this cookie can be used to control the downloaded file by the "javax.faces.ViewState" (wich is a param submited in JSF forms)

Parameters:

inputStream -

contentType -

fileName -

attachment -

getIP

public static String getIP()

getFacesContext

public static javax.faces.context.FacesContext getFacesContext(javax.servlet.http.HttpServletRequest request,
                                               javax.servlet.http.HttpServletResponse response)

Create the FacesContext. This method is useful to Contexts where FacesContext is not created, like a Filter.

Parameters:

request -

response -

Returns: