jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/jsfappconfig/ContextParamSpecifiedJSFAppConfigLocater.java - jsf/webtools.jsf - Git at Google

 /*******************************************************************************
  * Copyright (c) 2005, 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:
  *    Ian Trimble - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jst.jsf.core.jsfappconfig;

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

 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.common.notify.impl.AdapterImpl;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.jst.j2ee.common.ParamValue;
 import org.eclipse.jst.j2ee.model.IModelProvider;
 import org.eclipse.jst.j2ee.model.ModelProviderManager;
 import org.eclipse.jst.j2ee.webapplication.ContextParam;
 import org.eclipse.jst.j2ee.webapplication.WebApp;

 /**
  * ContextParamSpecifiedJSFAppConfigLocater attempts to locate application
  * configuration files specified by the JSF CONFIG_FILES context parameter.
  *
  * <p><b>Provisional API - subject to change</b></p>
  *
  * @author Ian Trimble - Oracle
  * TODO:cleanup once JavaEE API's stabilize
  */
 public class ContextParamSpecifiedJSFAppConfigLocater extends WebContentRelativeJSFAppConfigLocater {

 	/**
 	 * Cached instance of ContextParamAdapter.
 	 */
 	protected ContextParamAdapter 	contextParamAdapter = null;

 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.jst.jsf.core.jsfappconfig.AbstractJSFAppConfigLocater#startLocating()
 	 */
 	public void startLocating() {
 		locateProviders();
 		Object webAppObj = getModelObject();
 		if (webAppObj != null){
 			contextParamAdapter = new ContextParamAdapter();
 			if (webAppObj instanceof WebApp)
 				startLocatingJ2EEConfigs((WebApp)webAppObj);
 			else if (webAppObj instanceof org.eclipse.jst.javaee.web.WebApp)
 				startLocatingJEEConfigs((org.eclipse.jst.javaee.web.WebApp)webAppObj);
 		} else {
 			//TODO should never get here.  Log err?
 		}
 	}

 	private Object getModelObject() {
 		Object modelObject = null;
 		IModelProvider provider = ModelProviderManager.getModelProvider(getJSFAppConfigManager().getProject());
 		if (provider != null) {
 			modelObject = provider.getModelObject();
 		}
 		return modelObject;
 	}

 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.jst.jsf.core.jsfappconfig.AbstractJSFAppConfigLocater#stopLocating()
 	 */
 	public void stopLocating() {
 		if (contextParamAdapter != null) {
 			Object webAppObj = getModelObject();
 			if (webAppObj != null){
 				if (webAppObj instanceof WebApp)
 					stopLocatingJ2EEConfigs((WebApp)webAppObj);
 				else if (webAppObj instanceof org.eclipse.jst.javaee.web.WebApp)
 					stopLocatingJEEConfigs((org.eclipse.jst.javaee.web.WebApp)webAppObj);
 			} else {
 				//TODO should never get here.  Log err?
 			}
 			contextParamAdapter = null;
 		}
 	}

 	private void startLocatingJ2EEConfigs(WebApp webApp){
 		webApp.eAdapters().add(contextParamAdapter);
 		EList contexts = webApp.getContexts();
 		if (contexts != null) {
 			Iterator itContexts = contexts.iterator();
 			while (itContexts.hasNext()) {
 				ContextParam contextParam = (ContextParam)itContexts.next();
 				contextParam.eAdapters().add(contextParamAdapter);
 			}
 		}
 		EList contextParams = webApp.getContextParams();
 		if (contextParams != null) {
 			Iterator itContextParams = contextParams.iterator();
 			while (itContextParams.hasNext()) {
 				ParamValue paramValue = (ParamValue)itContextParams.next();
 				paramValue.eAdapters().add(contextParamAdapter);
 			}
 		}
 	}

 	private void startLocatingJEEConfigs(org.eclipse.jst.javaee.web.WebApp webApp) {
 		((EObject)webApp).eAdapters().add(contextParamAdapter);
 		List params = webApp.getContextParams();
 		if (params != null) {
 			Iterator itContexts = params.iterator();
 			while (itContexts.hasNext()) {
 				EObject contextParam = (EObject)itContexts.next();
 				contextParam.eAdapters().add(contextParamAdapter);
 			}
 		}
 	}

 	private void stopLocatingJ2EEConfigs(WebApp webApp) {
 		webApp.eAdapters().remove(contextParamAdapter);
 		EList contexts = webApp.getContexts();
 		if (contexts != null) {
 			Iterator itContexts = contexts.iterator();
 			while (itContexts.hasNext()) {
 				ContextParam contextParam = (ContextParam)itContexts.next();
 				contextParam.eAdapters().remove(contextParamAdapter);
 			}
 		}
 		EList contextParams = webApp.getContextParams();
 		if (contextParams != null) {
 			Iterator itContextParams = contextParams.iterator();
 			while (itContextParams.hasNext()) {
 				ParamValue paramValue = (ParamValue)itContextParams.next();
 				paramValue.eAdapters().remove(contextParamAdapter);
 			}
 		}
 	}

 	private void stopLocatingJEEConfigs(org.eclipse.jst.javaee.web.WebApp webApp) {
 		((EObject)webApp).eAdapters().remove(contextParamAdapter);
 		List contextParams = webApp.getContextParams();
 		if (contextParams != null) {
 			Iterator itContextParams = contextParams.iterator();
 			while (itContextParams.hasNext()) {
 				EObject paramValue = (EObject)itContextParams.next();
 				paramValue.eAdapters().remove(contextParamAdapter);
 			}
 		}
 	}
 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.jst.jsf.core.jsfappconfig.WebContentRelativeJSFAppConfigLocater#getFilenames()
 	 */
 	protected List getFilenames() {
 		return JSFAppConfigUtils.getConfigFilesFromContextParam(manager.getProject());
 	}

 	/**
 	 * Adapter implementation used to monitor addition/removal of context-param
 	 * nodes and change in name of existing nodes in order to respond to
 	 * changes to the JSF CONFIG_FILES context-param.
 	 *
 	 * @author Ian Trimble - Oracle
 	 */
 	class ContextParamAdapter extends AdapterImpl {

 		/*
 		 * (non-Javadoc)
 		 * @see org.eclipse.emf.common.notify.impl.AdapterImpl#notifyChanged(org.eclipse.emf.common.notify.Notification)
 		 */
 		public void notifyChanged(Notification notification) {
 			Object objNotifier = notification.getNotifier();
 //			System.out.println(objNotifier.toString());
 			if (objNotifier instanceof WebApp ||
 					objNotifier instanceof org.eclipse.jst.javaee.web.WebApp) {
 				int eventType = notification.getEventType();
 				switch (eventType) {
 				case Notification.ADD:
 					Object objNewValue = notification.getNewValue();
 					if (objNewValue instanceof ContextParam ||
 							objNewValue instanceof org.eclipse.jst.javaee.core.ParamValue) {
 						contextParamAdded((EObject)objNewValue);
 					} else if (objNewValue instanceof ParamValue ) {
 						paramValueAdded((EObject)objNewValue);
 					}
 					break;
 				case Notification.REMOVE:
 					Object objOldValue = notification.getOldValue();
 					if (objOldValue instanceof ContextParam ||
 							objOldValue instanceof org.eclipse.jst.javaee.core.ParamValue) {
 						contextParamRemoved((EObject)objOldValue);
 					} else if (objOldValue instanceof ParamValue) {
 						paramValueRemoved((EObject)objOldValue);
 					}
 					break;
 				}
 			} else if (objNotifier instanceof ContextParam ||
 					objNotifier instanceof org.eclipse.jst.javaee.core.ParamValue) {
 				if (notification.getEventType() != Notification.REMOVING_ADAPTER) {
 					locateProviders();
 				}
 			} else if (objNotifier instanceof ParamValue) {
 				if (notification.getEventType() != Notification.REMOVING_ADAPTER) {
 					locateProviders();
 				}
 			}
 		}

 		/**
 		 * Called when a new ContextParam instance is added.
 		 *
 		 * @param contextParam ContextParam instance.
 		 */
 		protected void contextParamAdded(EObject contextParam) {
 			if (isConfigFilesContextParam(contextParam)) {
 				locateProviders();
 			}
 			contextParam.eAdapters().add(this);
 		}

 		/**
 		 * Called when a new ParamValue instance is added.
 		 *
 		 * @param paramValue ParamValue instance.
 		 */
 		protected void paramValueAdded(EObject paramValue) {
 			if (isConfigFilesParamValue(paramValue)) {
 				locateProviders();
 			}
 			paramValue.eAdapters().add(this);
 		}

 		/**
 		 * Called when a ContextParam instance is removed.
 		 *
 		 * @param contextParam ContextParam instance.
 		 */
 		protected void contextParamRemoved(EObject contextParam) {
 			if (isConfigFilesContextParam(contextParam)) {
 				locateProviders();
 			}
 			contextParam.eAdapters().remove(this);
 		}

 		/**
 		 * Called when a ParamValue instance is removed.
 		 *
 		 * @param paramValue ParamValue instance.
 		 */
 		protected void paramValueRemoved(EObject paramValue) {
 			if (isConfigFilesParamValue(paramValue)) {
 				locateProviders();
 			}
 			paramValue.eAdapters().remove(this);
 		}

 		/**
 		 * Tests if the passed ContextParam instance is the JSF CONFIG_FILES
 		 * context parameter.
 		 *
 		 * @param contextParam ContextParam instance.
 		 * @return true if the passed ContextParam instance is the JSF
 		 * CONFIG_FILES context parameter, else false
 		 */
 		protected boolean isConfigFilesContextParam(EObject contextParam) {
 			boolean isConfigFiles = false;
 			if (contextParam != null) {
 				String name = null;
 				if (contextParam instanceof ContextParam)
 					name = ((ContextParam)contextParam).getParamName();
 				else if (contextParam instanceof org.eclipse.jst.javaee.core.ParamValue)
 					name = ((org.eclipse.jst.javaee.core.ParamValue)contextParam).getParamName();

 				if (name != null && name.equals(JSFAppConfigUtils.CONFIG_FILES_CONTEXT_PARAM_NAME)) {
 					isConfigFiles = true;
 				}
 			}
 			return isConfigFiles;
 		}

 		/**
 		 * Tests if the passed ParamValue instance is the JSF CONFIG_FILES
 		 * context parameter.
 		 *
 		 * @param paramVal as EObject ParamValue instance.
 		 * @return true if the passed ParamValue instance is the JSF
 		 * CONFIG_FILES context parameter, else false
 		 */
 		protected boolean isConfigFilesParamValue(EObject paramVal) {
 			boolean isConfigFiles = false;
 			if (paramVal != null) {
 				String name = null;
 				if (paramVal instanceof ParamValue)
 					name = ((ParamValue)paramVal).getName();
 				else if (paramVal instanceof org.eclipse.jst.javaee.core.ParamValue)
 					name = ((org.eclipse.jst.javaee.core.ParamValue)paramVal).getParamName();

 				if (name != null && name.equals(JSFAppConfigUtils.CONFIG_FILES_CONTEXT_PARAM_NAME)) {
 					isConfigFiles = true;
 				}
 			}
 			return isConfigFiles;
 		}

 	}
 }
	/*******************************************************************************
	* Copyright (c) 2005, 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:
	* Ian Trimble - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jst.jsf.core.jsfappconfig;

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

	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.common.notify.impl.AdapterImpl;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.jst.j2ee.common.ParamValue;
	import org.eclipse.jst.j2ee.model.IModelProvider;
	import org.eclipse.jst.j2ee.model.ModelProviderManager;
	import org.eclipse.jst.j2ee.webapplication.ContextParam;
	import org.eclipse.jst.j2ee.webapplication.WebApp;

	/**
	* ContextParamSpecifiedJSFAppConfigLocater attempts to locate application
	* configuration files specified by the JSF CONFIG_FILES context parameter.
	*
	* <p><b>Provisional API - subject to change</b></p>
	*
	* @author Ian Trimble - Oracle
	* TODO:cleanup once JavaEE API's stabilize
	*/
	public class ContextParamSpecifiedJSFAppConfigLocater extends WebContentRelativeJSFAppConfigLocater {

	/**
	* Cached instance of ContextParamAdapter.
	*/
	protected ContextParamAdapter contextParamAdapter = null;

	/*
	* (non-Javadoc)
	* @see org.eclipse.jst.jsf.core.jsfappconfig.AbstractJSFAppConfigLocater#startLocating()
	*/
	public void startLocating() {
	locateProviders();
	Object webAppObj = getModelObject();
	if (webAppObj != null){
	contextParamAdapter = new ContextParamAdapter();
	if (webAppObj instanceof WebApp)
	startLocatingJ2EEConfigs((WebApp)webAppObj);
	else if (webAppObj instanceof org.eclipse.jst.javaee.web.WebApp)
	startLocatingJEEConfigs((org.eclipse.jst.javaee.web.WebApp)webAppObj);
	} else {
	//TODO should never get here. Log err?
	}
	}

	private Object getModelObject() {
	Object modelObject = null;
	IModelProvider provider = ModelProviderManager.getModelProvider(getJSFAppConfigManager().getProject());
	if (provider != null) {
	modelObject = provider.getModelObject();
	}
	return modelObject;
	}

	/*
	* (non-Javadoc)
	* @see org.eclipse.jst.jsf.core.jsfappconfig.AbstractJSFAppConfigLocater#stopLocating()
	*/
	public void stopLocating() {
	if (contextParamAdapter != null) {
	Object webAppObj = getModelObject();
	if (webAppObj != null){
	if (webAppObj instanceof WebApp)
	stopLocatingJ2EEConfigs((WebApp)webAppObj);
	else if (webAppObj instanceof org.eclipse.jst.javaee.web.WebApp)
	stopLocatingJEEConfigs((org.eclipse.jst.javaee.web.WebApp)webAppObj);
	} else {
	//TODO should never get here. Log err?
	}
	contextParamAdapter = null;
	}
	}

	private void startLocatingJ2EEConfigs(WebApp webApp){
	webApp.eAdapters().add(contextParamAdapter);
	EList contexts = webApp.getContexts();
	if (contexts != null) {
	Iterator itContexts = contexts.iterator();
	while (itContexts.hasNext()) {
	ContextParam contextParam = (ContextParam)itContexts.next();
	contextParam.eAdapters().add(contextParamAdapter);
	}
	}
	EList contextParams = webApp.getContextParams();
	if (contextParams != null) {
	Iterator itContextParams = contextParams.iterator();
	while (itContextParams.hasNext()) {
	ParamValue paramValue = (ParamValue)itContextParams.next();
	paramValue.eAdapters().add(contextParamAdapter);
	}
	}
	}

	private void startLocatingJEEConfigs(org.eclipse.jst.javaee.web.WebApp webApp) {
	((EObject)webApp).eAdapters().add(contextParamAdapter);
	List params = webApp.getContextParams();
	if (params != null) {
	Iterator itContexts = params.iterator();
	while (itContexts.hasNext()) {
	EObject contextParam = (EObject)itContexts.next();
	contextParam.eAdapters().add(contextParamAdapter);
	}
	}
	}

	private void stopLocatingJ2EEConfigs(WebApp webApp) {
	webApp.eAdapters().remove(contextParamAdapter);
	EList contexts = webApp.getContexts();
	if (contexts != null) {
	Iterator itContexts = contexts.iterator();
	while (itContexts.hasNext()) {
	ContextParam contextParam = (ContextParam)itContexts.next();
	contextParam.eAdapters().remove(contextParamAdapter);
	}
	}
	EList contextParams = webApp.getContextParams();
	if (contextParams != null) {
	Iterator itContextParams = contextParams.iterator();
	while (itContextParams.hasNext()) {
	ParamValue paramValue = (ParamValue)itContextParams.next();
	paramValue.eAdapters().remove(contextParamAdapter);
	}
	}
	}

	private void stopLocatingJEEConfigs(org.eclipse.jst.javaee.web.WebApp webApp) {
	((EObject)webApp).eAdapters().remove(contextParamAdapter);
	List contextParams = webApp.getContextParams();
	if (contextParams != null) {
	Iterator itContextParams = contextParams.iterator();
	while (itContextParams.hasNext()) {
	EObject paramValue = (EObject)itContextParams.next();
	paramValue.eAdapters().remove(contextParamAdapter);
	}
	}
	}
	/*
	* (non-Javadoc)
	* @see org.eclipse.jst.jsf.core.jsfappconfig.WebContentRelativeJSFAppConfigLocater#getFilenames()
	*/
	protected List getFilenames() {
	return JSFAppConfigUtils.getConfigFilesFromContextParam(manager.getProject());
	}

	/**
	* Adapter implementation used to monitor addition/removal of context-param
	* nodes and change in name of existing nodes in order to respond to
	* changes to the JSF CONFIG_FILES context-param.
	*
	* @author Ian Trimble - Oracle
	*/
	class ContextParamAdapter extends AdapterImpl {

	/*
	* (non-Javadoc)
	* @see org.eclipse.emf.common.notify.impl.AdapterImpl#notifyChanged(org.eclipse.emf.common.notify.Notification)
	*/
	public void notifyChanged(Notification notification) {
	Object objNotifier = notification.getNotifier();
	// System.out.println(objNotifier.toString());
	if (objNotifier instanceof WebApp \|\|
	objNotifier instanceof org.eclipse.jst.javaee.web.WebApp) {
	int eventType = notification.getEventType();
	switch (eventType) {
	case Notification.ADD:
	Object objNewValue = notification.getNewValue();
	if (objNewValue instanceof ContextParam \|\|
	objNewValue instanceof org.eclipse.jst.javaee.core.ParamValue) {
	contextParamAdded((EObject)objNewValue);
	} else if (objNewValue instanceof ParamValue ) {
	paramValueAdded((EObject)objNewValue);
	}
	break;
	case Notification.REMOVE:
	Object objOldValue = notification.getOldValue();
	if (objOldValue instanceof ContextParam \|\|
	objOldValue instanceof org.eclipse.jst.javaee.core.ParamValue) {
	contextParamRemoved((EObject)objOldValue);
	} else if (objOldValue instanceof ParamValue) {
	paramValueRemoved((EObject)objOldValue);
	}
	break;
	}
	} else if (objNotifier instanceof ContextParam \|\|
	objNotifier instanceof org.eclipse.jst.javaee.core.ParamValue) {
	if (notification.getEventType() != Notification.REMOVING_ADAPTER) {
	locateProviders();
	}
	} else if (objNotifier instanceof ParamValue) {
	if (notification.getEventType() != Notification.REMOVING_ADAPTER) {
	locateProviders();
	}
	}
	}

	/**
	* Called when a new ContextParam instance is added.
	*
	* @param contextParam ContextParam instance.
	*/
	protected void contextParamAdded(EObject contextParam) {
	if (isConfigFilesContextParam(contextParam)) {
	locateProviders();
	}
	contextParam.eAdapters().add(this);
	}

	/**
	* Called when a new ParamValue instance is added.
	*
	* @param paramValue ParamValue instance.
	*/
	protected void paramValueAdded(EObject paramValue) {
	if (isConfigFilesParamValue(paramValue)) {
	locateProviders();
	}
	paramValue.eAdapters().add(this);
	}

	/**
	* Called when a ContextParam instance is removed.
	*
	* @param contextParam ContextParam instance.
	*/
	protected void contextParamRemoved(EObject contextParam) {
	if (isConfigFilesContextParam(contextParam)) {
	locateProviders();
	}
	contextParam.eAdapters().remove(this);
	}

	/**
	* Called when a ParamValue instance is removed.
	*
	* @param paramValue ParamValue instance.
	*/
	protected void paramValueRemoved(EObject paramValue) {
	if (isConfigFilesParamValue(paramValue)) {
	locateProviders();
	}
	paramValue.eAdapters().remove(this);
	}

	/**
	* Tests if the passed ContextParam instance is the JSF CONFIG_FILES
	* context parameter.
	*
	* @param contextParam ContextParam instance.
	* @return true if the passed ContextParam instance is the JSF
	* CONFIG_FILES context parameter, else false
	*/
	protected boolean isConfigFilesContextParam(EObject contextParam) {
	boolean isConfigFiles = false;
	if (contextParam != null) {
	String name = null;
	if (contextParam instanceof ContextParam)
	name = ((ContextParam)contextParam).getParamName();
	else if (contextParam instanceof org.eclipse.jst.javaee.core.ParamValue)
	name = ((org.eclipse.jst.javaee.core.ParamValue)contextParam).getParamName();

	if (name != null && name.equals(JSFAppConfigUtils.CONFIG_FILES_CONTEXT_PARAM_NAME)) {
	isConfigFiles = true;
	}
	}
	return isConfigFiles;
	}

	/**
	* Tests if the passed ParamValue instance is the JSF CONFIG_FILES
	* context parameter.
	*
	* @param paramVal as EObject ParamValue instance.
	* @return true if the passed ParamValue instance is the JSF
	* CONFIG_FILES context parameter, else false
	*/
	protected boolean isConfigFilesParamValue(EObject paramVal) {
	boolean isConfigFiles = false;
	if (paramVal != null) {
	String name = null;
	if (paramVal instanceof ParamValue)
	name = ((ParamValue)paramVal).getName();
	else if (paramVal instanceof org.eclipse.jst.javaee.core.ParamValue)
	name = ((org.eclipse.jst.javaee.core.ParamValue)paramVal).getParamName();

	if (name != null && name.equals(JSFAppConfigUtils.CONFIG_FILES_CONTEXT_PARAM_NAME)) {
	isConfigFiles = true;
	}
	}
	return isConfigFiles;
	}

	}
	}