[ http://issues.apache.org/struts/browse/WW-1416?page=all ]
Christopher Waring updated WW-1416:
-----------------------------------
Attachment: FacesResult_diff.txt
> Modifications to FacesResult to control page navigation using the struts.xml
> result tag.
> ----------------------------------------------------------------------------------------
>
> Key: WW-1416
> URL: http://issues.apache.org/struts/browse/WW-1416
> Project: Struts 2
> Issue Type: New Feature
> Components: Configuration
> Affects Versions: 2.0.0, 2.0.1
> Environment: All
> Reporter: Christopher Waring
> Assigned To: Don Brown
> Attachments: FacesResult_diff.txt
>
>
> Modified the FacesResult class to compare the result uri from the struts
> result config to the JSF viewId and build a new JSF viewId if they do not
> match. Processing is then delegated to the render.
> I had to split the render() into it's own class because I needed the
> StrutsResultSupport functionality for parsing the result string to garuantee
> that the parameter functionality would be available. This will allow the
> FacesResult to work the same as the other Result classes in respect to how
> you can define the location to forward to.
> Simple Example Configuration:
> <result name="success" type="jsf" >
> /listBillingActions.jsp
> </result>
> org.apache.struts2.jsf.FacesRender.java
> /*
> * $Id: PlainTextResult.java 394468 2006-04-16 12:16:03Z tmjee $
> *
> * Copyright 2006 The Apache Software Foundation.
> *
> * Licensed under the Apache License, Version 2.0 (the "License");
> * you may not use this file except in compliance with the License.
> * You may obtain a copy of the License at
> *
> * http://www.apache.org/licenses/LICENSE-2.0
> *
> * Unless required by applicable law or agreed to in writing, software
> * distributed under the License is distributed on an "AS IS" BASIS,
> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> * See the License for the specific language governing permissions and
> * limitations under the License.
> */
> package org.apache.struts2.jsf;
> import java.io.IOException;
> import javax.faces.FacesException;
> import javax.faces.application.Application;
> import javax.faces.application.ViewHandler;
> import javax.faces.component.UIViewRoot;
> import javax.faces.context.FacesContext;
> import javax.faces.event.PhaseId;
> import org.apache.struts2.dispatcher.StrutsResultSupport;
> import com.opensymphony.xwork2.ActionInvocation;
> import com.opensymphony.xwork2.Result;
> /**
> * Handles the results navigation and then executes the JSF render phase
> */
> public class FacesResult extends StrutsResultSupport implements Result {
> private static final long serialVersionUID = -3548970638740937804L;
> /**
> * Checks to see if we need to build a new JSF ViewId from the Struts
> Result config and
> * then renders the result by delegating to the FacesRender.render().
> * @see
> org.apache.struts2.dispatcher.StrutsResultSupport#doExecute(java.lang.String,
> com.opensymphony.xwork2.ActionInvocation)
> */
> protected void doExecute(String finalLocation, ActionInvocation
> invocation) throws Exception {
> performNavigation(finalLocation,
> FacesContext.getCurrentInstance());
> new FacesRender().render(FacesContext.getCurrentInstance());
> }
> /**
> * Compares the Struts Result uri to the faces viewId.
> * If they are different use the Struts uri to build
> * a new faces viewId.
> * @param finalLocation The result uri
> * @param facesContext The FacesContext
> */
> private void performNavigation(String finalLocation, FacesContext
> facesContext) {
> String facesViewId = facesContext.getViewRoot().getViewId();
>
> if (finalLocation != null) {
> if (finalLocation.equals(facesViewId) == false) {
> ViewHandler viewHandler =
> facesContext.getApplication().getViewHandler();
> UIViewRoot viewRoot =
> viewHandler.createView(facesContext, finalLocation);
> facesContext.setViewRoot(viewRoot);
> facesContext.renderResponse();
> }
> }
> }
> }
> org.apache.struts2.jsf.FacesRender.java
> /*
> * $Id: PlainTextResult.java 394468 2006-04-16 12:16:03Z tmjee $
> *
> * Copyright 2006 The Apache Software Foundation.
> *
> * Licensed under the Apache License, Version 2.0 (the "License");
> * you may not use this file except in compliance with the License.
> * You may obtain a copy of the License at
> *
> * http://www.apache.org/licenses/LICENSE-2.0
> *
> * Unless required by applicable law or agreed to in writing, software
> * distributed under the License is distributed on an "AS IS" BASIS,
> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> * See the License for the specific language governing permissions and
> * limitations under the License.
> */
> package org.apache.struts2.jsf;
> import java.io.IOException;
> import javax.faces.FacesException;
> import javax.faces.application.Application;
> import javax.faces.application.ViewHandler;
> import javax.faces.context.FacesContext;
> import javax.faces.event.PhaseId;
> /**
> * Performs the JSF render lifecycle phase.
> *
> */
> public class FacesRender extends FacesSupport {
> /**
> * Executes the render phase, borrowed from MyFaces
> *
> * @param facesContext
> * The faces context
> * @throws FacesException
> * If anything goes wrong
> */
> public void render(FacesContext facesContext) throws FacesException {
> // if the response is complete we should not be invoking the phase
> // listeners
> if (isResponseComplete(facesContext, "render", true)) {
> return;
> }
> if (log.isTraceEnabled())
> log.trace("entering renderResponse");
> informPhaseListenersBefore(facesContext, PhaseId.RENDER_RESPONSE);
> try {
> // also possible that one of the listeners completed the response
> if (isResponseComplete(facesContext, "render", true)) {
> return;
> }
> Application application = facesContext.getApplication();
> ViewHandler viewHandler = application.getViewHandler();
> try {
> viewHandler
> .renderView(facesContext, facesContext.getViewRoot());
> } catch (IOException e) {
> throw new FacesException(e.getMessage(), e);
> }
> } finally {
> informPhaseListenersAfter(facesContext, PhaseId.RENDER_RESPONSE);
> }
> if (log.isTraceEnabled()) {
> // Note: DebugUtils Logger must also be in trace level
> // DebugUtils.traceView("View after rendering");
> }
> if (log.isTraceEnabled())
> log.trace("exiting renderResponse");
> }
> }
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