jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/internal/project/facet/JSFFacetUninstallDelegate.java - jsf/webtools.jsf - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007 Oracle Corporation.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Oracle - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jst.jsf.core.internal.project.facet;

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.jdt.core.IClasspathEntry;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jst.common.project.facet.core.ClasspathHelper;
 import org.eclipse.jst.j2ee.model.IModelProvider;
 import org.eclipse.jst.j2ee.model.ModelProviderManager;
 import org.eclipse.jst.javaee.core.ParamValue;
 import org.eclipse.jst.javaee.web.Servlet;
 import org.eclipse.jst.javaee.web.WebApp;
 import org.eclipse.jst.jsf.core.internal.JSFCorePlugin;
 import org.eclipse.jst.jsf.core.internal.Messages;
 import org.eclipse.jst.jsf.core.jsflibraryconfiguration.JSFLibraryConfigurationHelper;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.wst.common.project.facet.core.IDelegate;
 import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;

 /**
  * JSF Facet Un-install Delegate for WTP faceted projects.
  *
  *	<li> removes JSF servlet, servlet-mappings and context-params
  *	<li> leaves JSF configuration files on disk
  *  <li> removes JSF classpath containers
  *
  */
 public final class JSFFacetUninstallDelegate implements IDelegate {

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.common.project.facet.core.IDelegate#execute(org.eclipse.core.resources.IProject, org.eclipse.wst.common.project.facet.core.IProjectFacetVersion, java.lang.Object, org.eclipse.core.runtime.IProgressMonitor)
 	 */
 	public void execute(final IProject project, final IProjectFacetVersion fv,
 			final Object config, final IProgressMonitor monitor) throws CoreException {
 		{

 			if (monitor != null) {
 				monitor.beginTask("", 1); //$NON-NLS-1$
 			}

 			try {
 				//Before we do any de-configuration, verify that web.xml is available for update
 				IModelProvider provider = JSFUtils.getModelProvider(project);
 				if (provider == null ) {
 					throw new JSFFacetException(NLS.bind(Messages.JSFFacetUninstallDelegate_ConfigErr, project.getName()));
 				} else if (!(provider.validateEdit(null, null).isOK())){
 					throw new JSFFacetException(NLS.bind(Messages.JSFFacetUninstallDelegate_NonUpdateableWebXML, project.getName()));
 				}

 				// Remove JSF Libraries
 				removeJSFLibraries(project, fv, monitor);

 				//Remove Runtime contributed JSF classpath entries
 				removeRuntimeContributedJSFClasspathEntries(project, fv, monitor);

 				// remove servlet stuff from web.xml
 				uninstallJSFReferencesFromWebApp(project, monitor);

 				if (monitor != null) {
 					monitor.worked(1);
 				}

 			} finally {
 				if (monitor != null) {
 					monitor.done();
 				}
 			}
 		}
 	}

 	/**
 	 * Removes JSF Lib CP Containers from project
 	 * @param project
 	 * @param monitor
 	 */
 	private void removeJSFLibraries(final IProject project, final IProjectFacetVersion fv, final IProgressMonitor monitor) {
 		 final IJavaProject jproj = JavaCore.create(project);
 		 List keptEntries = new ArrayList();
 		 try {
 			IClasspathEntry[] entries = jproj.getRawClasspath();
 			  keptEntries = new ArrayList();
 			 for (int i=0;i<entries.length;i++){
 				 IClasspathEntry entry = entries[i];
 				 if ( !(JSFLibraryConfigurationHelper.isJSFLibraryContainer(entry)))
 					 keptEntries.add(entry);
 			 }
 		} catch (JavaModelException e) {
 			JSFCorePlugin.log(e, "Cannot get classpath entries to remove JSF Libraries for: "+project.getName()); //$NON-NLS-1$
 		}

 		 if (keptEntries.size() > 0){
 			 try {
 				jproj.setRawClasspath((IClasspathEntry[])keptEntries.toArray(new IClasspathEntry[0]), monitor);
 			} catch (JavaModelException e) {
 				JSFCorePlugin.log(e, "Exception occured while removing JSF Libraries during JSF Facet uninstall"); //$NON-NLS-1$
 			}
 		 }


 	}

 	private void removeRuntimeContributedJSFClasspathEntries(final IProject project, final IProjectFacetVersion fv, final IProgressMonitor monitor) {
 		try {
 			ClasspathHelper.removeClasspathEntries(project, fv);
 		} catch (CoreException e) {
 			JSFCorePlugin.log(IStatus.ERROR, "Unable to remove server supplied implementation from the classpath.", e);//$NON-NLS-1$
 		}
 	}

 	private void uninstallJSFReferencesFromWebApp(final IProject project,
 			final IProgressMonitor monitor) {

 		IModelProvider provider = JSFUtils.getModelProvider(project);
 		Object webAppObj = provider.getModelObject();
 		if (webAppObj != null) {
 			IPath ddPath = new Path("WEB-INF").append("web.xml"); //$NON-NLS-1$ //$NON-NLS-2$
 			if (isJavaEEWebApp(webAppObj)){
 				WebApp webApp = (WebApp)webAppObj;
 				Servlet servlet = JSFUtils12.findJSFServlet(webApp);
 				if (servlet == null)
 					return;

 				provider.modify(new RemoveJSFFromJavaEEWebAppOperation(project), ddPath);
 			} else {//2.3 or 2.4 web app
 				org.eclipse.jst.j2ee.webapplication.WebApp webApp = (org.eclipse.jst.j2ee.webapplication.WebApp)webAppObj;
 				org.eclipse.jst.j2ee.webapplication.Servlet servlet = JSFUtils11.findJSFServlet(webApp);
 				if (servlet == null)
 					return;

 				provider.modify(new RemoveJSFFromJ2EEWebAppOperation(project), ddPath);
 			}
 		}
 	}

 	private boolean isJavaEEWebApp(final Object webAppObj) {
 		if (webAppObj instanceof WebApp)
 			return true;

 		return false;

 	}

 	static class RemoveJSFFromJavaEEWebAppOperation implements Runnable {
 		private IProject _project;

 		RemoveJSFFromJavaEEWebAppOperation(final IProject project){
 			this._project = project;
 		}

 		public void run() {
 			WebApp webApp = (WebApp) ModelProviderManager.getModelProvider(_project).getModelObject();
 			Servlet servlet = JSFUtils12.findJSFServlet(webApp);

 			// remove faces url mappings
 			JSFUtils12.removeURLMappings(webApp, servlet);
 			// remove context params
 			removeJSFContextParams(webApp, servlet);
 			// remove servlet
 			removeJSFServlet(webApp, servlet);

 		}
 		private void removeJSFContextParams(final WebApp webApp, final Servlet servlet) {
 			Iterator it = webApp.getContextParams().iterator();
 			while (it.hasNext()) {
 				ParamValue cp = (ParamValue) it.next();
 				if (cp.getParamName().equals(JSFUtils.JSF_CONFIG_CONTEXT_PARAM)) {
 					webApp.getContextParams().remove(cp);
 					break;
 				}
 			}
 		}

 		private void removeJSFServlet(final WebApp webApp, final Servlet servlet) {
 			webApp.getServlets().remove(servlet);
 		}

 	}

 	static class RemoveJSFFromJ2EEWebAppOperation implements Runnable {
 		private IProject _project;

 		RemoveJSFFromJ2EEWebAppOperation(final IProject project){
 			this._project = project;
 		}

 		public void run() {
 			org.eclipse.jst.j2ee.webapplication.WebApp webApp = (org.eclipse.jst.j2ee.webapplication.WebApp) ModelProviderManager.getModelProvider(_project).getModelObject();
 			org.eclipse.jst.j2ee.webapplication.Servlet servlet = JSFUtils11.findJSFServlet(webApp);

 			// remove faces url mappings
 			JSFUtils11.removeURLMappings(webApp, servlet);
 			// remove context params
 			removeJSFContextParams(webApp, servlet);
 			// remove servlet
 			removeJSFServlet(webApp, servlet);

 		}
 		private void removeJSFContextParams(final org.eclipse.jst.j2ee.webapplication.WebApp webApp, final org.eclipse.jst.j2ee.webapplication.Servlet servlet) {
 			Iterator it = webApp.getContextParams().iterator();
 			while (it.hasNext()) {
 				org.eclipse.jst.j2ee.common.ParamValue cp = (org.eclipse.jst.j2ee.common.ParamValue) it.next();
 				if (cp.getName().equals(JSFUtils.JSF_CONFIG_CONTEXT_PARAM)) {
 					webApp.getContextParams().remove(cp);
 					break;
 				}
 			}
 		}

 		private void removeJSFServlet(final org.eclipse.jst.j2ee.webapplication.WebApp webApp, final org.eclipse.jst.j2ee.webapplication.Servlet servlet) {
 			webApp.getServlets().remove(servlet);
 		}

 	}

 }
	/*******************************************************************************
	* Copyright (c) 2007 Oracle Corporation.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Oracle - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jst.jsf.core.internal.project.facet;

	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.jdt.core.IClasspathEntry;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.JavaCore;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jst.common.project.facet.core.ClasspathHelper;
	import org.eclipse.jst.j2ee.model.IModelProvider;
	import org.eclipse.jst.j2ee.model.ModelProviderManager;
	import org.eclipse.jst.javaee.core.ParamValue;
	import org.eclipse.jst.javaee.web.Servlet;
	import org.eclipse.jst.javaee.web.WebApp;
	import org.eclipse.jst.jsf.core.internal.JSFCorePlugin;
	import org.eclipse.jst.jsf.core.internal.Messages;
	import org.eclipse.jst.jsf.core.jsflibraryconfiguration.JSFLibraryConfigurationHelper;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.wst.common.project.facet.core.IDelegate;
	import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;

	/**
	* JSF Facet Un-install Delegate for WTP faceted projects.
	*
	* <li> removes JSF servlet, servlet-mappings and context-params
	* <li> leaves JSF configuration files on disk
	* <li> removes JSF classpath containers
	*
	*/
	public final class JSFFacetUninstallDelegate implements IDelegate {

	/* (non-Javadoc)
	* @see org.eclipse.wst.common.project.facet.core.IDelegate#execute(org.eclipse.core.resources.IProject, org.eclipse.wst.common.project.facet.core.IProjectFacetVersion, java.lang.Object, org.eclipse.core.runtime.IProgressMonitor)
	*/
	public void execute(final IProject project, final IProjectFacetVersion fv,
	final Object config, final IProgressMonitor monitor) throws CoreException {
	{

	if (monitor != null) {
	monitor.beginTask("", 1); //$NON-NLS-1$
	}

	try {
	//Before we do any de-configuration, verify that web.xml is available for update
	IModelProvider provider = JSFUtils.getModelProvider(project);
	if (provider == null ) {
	throw new JSFFacetException(NLS.bind(Messages.JSFFacetUninstallDelegate_ConfigErr, project.getName()));
	} else if (!(provider.validateEdit(null, null).isOK())){
	throw new JSFFacetException(NLS.bind(Messages.JSFFacetUninstallDelegate_NonUpdateableWebXML, project.getName()));
	}

	// Remove JSF Libraries
	removeJSFLibraries(project, fv, monitor);

	//Remove Runtime contributed JSF classpath entries
	removeRuntimeContributedJSFClasspathEntries(project, fv, monitor);

	// remove servlet stuff from web.xml
	uninstallJSFReferencesFromWebApp(project, monitor);

	if (monitor != null) {
	monitor.worked(1);
	}

	} finally {
	if (monitor != null) {
	monitor.done();
	}
	}
	}
	}

	/**
	* Removes JSF Lib CP Containers from project
	* @param project
	* @param monitor
	*/
	private void removeJSFLibraries(final IProject project, final IProjectFacetVersion fv, final IProgressMonitor monitor) {
	final IJavaProject jproj = JavaCore.create(project);
	List keptEntries = new ArrayList();
	try {
	IClasspathEntry[] entries = jproj.getRawClasspath();
	keptEntries = new ArrayList();
	for (int i=0;i<entries.length;i++){
	IClasspathEntry entry = entries[i];
	if ( !(JSFLibraryConfigurationHelper.isJSFLibraryContainer(entry)))
	keptEntries.add(entry);
	}
	} catch (JavaModelException e) {
	JSFCorePlugin.log(e, "Cannot get classpath entries to remove JSF Libraries for: "+project.getName()); //$NON-NLS-1$
	}

	if (keptEntries.size() > 0){
	try {
	jproj.setRawClasspath((IClasspathEntry[])keptEntries.toArray(new IClasspathEntry[0]), monitor);
	} catch (JavaModelException e) {
	JSFCorePlugin.log(e, "Exception occured while removing JSF Libraries during JSF Facet uninstall"); //$NON-NLS-1$
	}
	}


	}

	private void removeRuntimeContributedJSFClasspathEntries(final IProject project, final IProjectFacetVersion fv, final IProgressMonitor monitor) {
	try {
	ClasspathHelper.removeClasspathEntries(project, fv);
	} catch (CoreException e) {
	JSFCorePlugin.log(IStatus.ERROR, "Unable to remove server supplied implementation from the classpath.", e);//$NON-NLS-1$
	}
	}

	private void uninstallJSFReferencesFromWebApp(final IProject project,
	final IProgressMonitor monitor) {

	IModelProvider provider = JSFUtils.getModelProvider(project);
	Object webAppObj = provider.getModelObject();
	if (webAppObj != null) {
	IPath ddPath = new Path("WEB-INF").append("web.xml"); //$NON-NLS-1$ //$NON-NLS-2$
	if (isJavaEEWebApp(webAppObj)){
	WebApp webApp = (WebApp)webAppObj;
	Servlet servlet = JSFUtils12.findJSFServlet(webApp);
	if (servlet == null)
	return;

	provider.modify(new RemoveJSFFromJavaEEWebAppOperation(project), ddPath);
	} else {//2.3 or 2.4 web app
	org.eclipse.jst.j2ee.webapplication.WebApp webApp = (org.eclipse.jst.j2ee.webapplication.WebApp)webAppObj;
	org.eclipse.jst.j2ee.webapplication.Servlet servlet = JSFUtils11.findJSFServlet(webApp);
	if (servlet == null)
	return;

	provider.modify(new RemoveJSFFromJ2EEWebAppOperation(project), ddPath);
	}
	}
	}

	private boolean isJavaEEWebApp(final Object webAppObj) {
	if (webAppObj instanceof WebApp)
	return true;

	return false;

	}

	static class RemoveJSFFromJavaEEWebAppOperation implements Runnable {
	private IProject _project;

	RemoveJSFFromJavaEEWebAppOperation(final IProject project){
	this._project = project;
	}

	public void run() {
	WebApp webApp = (WebApp) ModelProviderManager.getModelProvider(_project).getModelObject();
	Servlet servlet = JSFUtils12.findJSFServlet(webApp);

	// remove faces url mappings
	JSFUtils12.removeURLMappings(webApp, servlet);
	// remove context params
	removeJSFContextParams(webApp, servlet);
	// remove servlet
	removeJSFServlet(webApp, servlet);

	}
	private void removeJSFContextParams(final WebApp webApp, final Servlet servlet) {
	Iterator it = webApp.getContextParams().iterator();
	while (it.hasNext()) {
	ParamValue cp = (ParamValue) it.next();
	if (cp.getParamName().equals(JSFUtils.JSF_CONFIG_CONTEXT_PARAM)) {
	webApp.getContextParams().remove(cp);
	break;
	}
	}
	}

	private void removeJSFServlet(final WebApp webApp, final Servlet servlet) {
	webApp.getServlets().remove(servlet);
	}

	}

	static class RemoveJSFFromJ2EEWebAppOperation implements Runnable {
	private IProject _project;

	RemoveJSFFromJ2EEWebAppOperation(final IProject project){
	this._project = project;
	}

	public void run() {
	org.eclipse.jst.j2ee.webapplication.WebApp webApp = (org.eclipse.jst.j2ee.webapplication.WebApp) ModelProviderManager.getModelProvider(_project).getModelObject();
	org.eclipse.jst.j2ee.webapplication.Servlet servlet = JSFUtils11.findJSFServlet(webApp);

	// remove faces url mappings
	JSFUtils11.removeURLMappings(webApp, servlet);
	// remove context params
	removeJSFContextParams(webApp, servlet);
	// remove servlet
	removeJSFServlet(webApp, servlet);

	}
	private void removeJSFContextParams(final org.eclipse.jst.j2ee.webapplication.WebApp webApp, final org.eclipse.jst.j2ee.webapplication.Servlet servlet) {
	Iterator it = webApp.getContextParams().iterator();
	while (it.hasNext()) {
	org.eclipse.jst.j2ee.common.ParamValue cp = (org.eclipse.jst.j2ee.common.ParamValue) it.next();
	if (cp.getName().equals(JSFUtils.JSF_CONFIG_CONTEXT_PARAM)) {
	webApp.getContextParams().remove(cp);
	break;
	}
	}
	}

	private void removeJSFServlet(final org.eclipse.jst.j2ee.webapplication.WebApp webApp, final org.eclipse.jst.j2ee.webapplication.Servlet servlet) {
	webApp.getServlets().remove(servlet);
	}

	}

	}