Hi, we could provide a config parameter that enables this fix also in MyFaces 2.0.x.
WDYT Leo? Regards, Jakob 2011/5/6 Leonardo Uribe <[email protected]>: > Hi > > It is a known problem in JSF 2.0. see: > > https://issues.apache.org/jira/browse/MYFACES-2628 > http://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-893 > > Theorically there are 2 options: > > 1. Use MyFaces core 2.1.0-SNAPSHOT. > 2. Use prefix mapping for your pages instead suffix mapping. > > Please close the issue as duplicate. > > regards, > > Leonardo Uribe > > 2011/5/6 Jakob Korherr <[email protected]>: >> Hi, >> >> This seems to be an implementation issue of MyFaces. Please file a >> ticket in our JIRA at https://issues.apache.org/jira/browse/MYFACES >> >> Thanks! >> >> Regards, >> Jakob >> >> 2011/5/6 Juan Fernandez-Corugedo Igual <[email protected]>: >>> >>> Hi. >>> >>> I'm working in a project with Myfaces 2.0.5 and I have had a problem with a >>> custom ResourceResolver. >>> >>> I have coded a ResourceResolver that dynamically builds an XHTML file when >>> the engine asks him to resolve a certain URL. >>> >>> To achieve this, I have update the web.xml as follows: >>> >>> <context-param> >>> <param-name>javax.faces.FACELETS_VIEW_MAPPINGS</param-name> >>> <param-value>*.test;*.xhtml</param-value> >>> </context-param> >>> >>> <context-param> >>> <param-name>javax.faces.FACELETS_RESOURCE_RESOLVER</param-name> >>> >>> <param-value>com.test.view.facelets.CustomResourceResolver</param-value> >>> </context-param> >>> >>> My CustomResourceResolver is very simple: >>> >>> package com.test.view.facelets; >>> >>> import java.io.ByteArrayInputStream; >>> import java.io.IOException; >>> import java.io.InputStream; >>> import java.net.MalformedURLException; >>> import java.net.URL; >>> import java.net.URLConnection; >>> import java.net.URLStreamHandler; >>> >>> import javax.faces.view.facelets.ResourceResolver; >>> >>> public class CustomResourceResolver extends ResourceResolver { >>> >>> private ResourceResolver innerResourceResolver; >>> >>> private String viewSource = ".... xhtml of the test page ...."; >>> >>> public CustomResourceResolver(ResourceResolver resourceResolver){ >>> this.innerResourceResolver = resourceResolver; >>> } >>> >>> @Override >>> public URL resolveUrl(String path) { >>> System.out.println("Buscando la URL del recurso: " + path); >>> URL result = null; >>> >>> if(path.endsWith(".test")){ >>> try{ >>> result = getUrlForResourceAsStream(path); >>> }catch(Exception e){ >>> System.out.println("Unexpected error while obtaining the URL >>> from resource " + path); >>> e.printStackTrace(System.out); >>> } >>> >>> }else{ >>> result = this.innerResourceResolver.resolveUrl(path); >>> } >>> >>> return result; >>> } >>> >>> private URL getUrlForResourceAsStream(String path) throws >>> MalformedURLException { >>> URLStreamHandler handler = new URLStreamHandler() { >>> protected URLConnection openConnection(URL u) throws IOException >>> { >>> final String file = u.getFile(); >>> return new URLConnection(u) { >>> public void connect() throws IOException { >>> } >>> >>> public InputStream getInputStream() throws IOException { >>> System.out.println("Opening internal url to " + >>> file); >>> >>> try{ >>> System.out.println("Generando el InputStream de >>> la pagina:\n" + viewSource); >>> return new >>> ByteArrayInputStream(viewSource.getBytes("UTF-8")); >>> }catch (Exception e) { >>> e.printStackTrace(); >>> throw new RuntimeException("Unexpected error >>> while obtaining the view", e); >>> } >>> } >>> }; >>> } >>> }; >>> return new URL("internal", null, 0, path, handler); >>> } >>> } >>> >>> >>> As you can see, the code is very simple. When the suffix matches the pattern >>> ".test", the Resolver creates a mock URL with a backing >>> ByteArrayInputStream. If the suffix does not matches the pattern, the normal >>> ResourceResolver is invoked. >>> >>> With this configuration and code, when I request the URL: >>> http://xxxxxx:yyyy/zzzzz/anything.test the application fails with error: >>> >>> The problem is this: >>> >>> java.lang.NullPointerException >>> at java.lang.StringBuilder.<init>(StringBuilder.java:92) >>> at >>> org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.getRenderedViewId(FaceletViewDeclarationLanguage.java:1630) >>> at >>> org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.buildView(FaceletViewDeclarationLanguage.java:279) >>> .... >>> >>> The executes the viewHandler.createView("xxxx.test") method. It internally >>> calls the getViewHandlerSupport().calculateViewId(context, viewId); method >>> to obtain the viewId, and this method calls >>> DefaultViewHandlerSupport.checkResourceExists(FacesContext context, String >>> viewId), that checks the physical file of this resource, but there are not >>> any file for this resource!!!! so it return false, and the viewId of the >>> resulting ViewRoot is assigned to null. >>> >>> This causes a NullPointerException later, when the code executes the >>> ViewDeclarationLanguage.buildView(FacesContext context, ViewRoot viewRoot). >>> >>> If I change the Myfaces implementation with Mojarra 2.0.4, it works >>> perfectly, so I think that the problem is in the implementation. >>> >>> I can't extend any class of interface of Myfaces, because my application >>> must not be coupled to a specific implementation. >>> >>> I have attached two web projects, one with Myfaces configuration, that >>> fails, and the same project with Mojarra configuration, that works (Both >>> without the jars of the implementation) >>> >>> How can I solve this? >>> >>> Thanks >>> >>> >> >> >> >> -- >> Jakob Korherr >> >> blog: http://www.jakobk.com >> twitter: http://twitter.com/jakobkorherr >> work: http://www.irian.at >> > -- Jakob Korherr blog: http://www.jakobk.com twitter: http://twitter.com/jakobkorherr work: http://www.irian.at
