org.eclipse.osbp.ecview.core.common/src/org/eclipse/osbp/ecview/core/common/context/ViewContext.java - osbp/org.eclipse.osbp.ecview.core - Git at Google

 /**
  * Copyright (c) 2012, 2015 - Lunifera GmbH (Austria), Loetz GmbH&Co.KG and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *    Florian Pirchner - initial API and implementation
  */
 package org.eclipse.osbp.ecview.core.common.context;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.Future;

 import org.eclipse.osbp.ecview.core.common.editpart.IExposedActionEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.IViewEditpart;
 import org.eclipse.osbp.ecview.core.common.notification.ILifecycleEvent;
 import org.eclipse.osbp.ecview.core.common.notification.ILifecycleService;
 import org.eclipse.osbp.ecview.core.common.notification.LifecycleEvent;
 import org.eclipse.osbp.ecview.core.common.services.IThirdPartyServiceDelegate;
 import org.eclipse.osbp.ecview.core.common.services.IWidgetAssocationsService;
 import org.eclipse.osbp.ecview.core.common.tooling.IWidgetMouseClickService;
 import org.eclipse.osbp.ecview.core.common.visibility.IVisibilityManager;
 import org.eclipse.osbp.ecview.core.common.visibility.impl.VisibilityManager;
 import org.eclipse.osbp.runtime.common.dispose.AbstractDisposable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 /**
  * Implementation of the {@link IViewContext}.
  */
 public class ViewContext extends DisposableContext implements IViewContext {

 	/** The Constant logger. */
 	private static final Logger logger = LoggerFactory.getLogger(ViewContext.class);

 	/** The final dispose. */
 	// preparations for final disposal after view has been disposed
 	private Map<String, Object> finalDispose = new HashMap<String, Object>();

 	/** The rendering parameters. */
 	private Map<String, Object> renderingParameters = new HashMap<>();

 	/** The visibility manager. */
 	private VisibilityManager visibilityManager;

 	/** The view editpart. */
 	private IViewEditpart viewEditpart;

 	/** The root layout. */
 	private Object rootLayout;

 	/** The presentation uri. */
 	private String presentationURI;

 	/** The rendered. */
 	private boolean rendered;

 	/** The thirdparty service delegate. */
 	private IThirdPartyServiceDelegate thirdpartyServiceDelegate;

 	/**
 	 * Default Constructor for tests only! Do not use.
 	 */
 	public ViewContext() {
 	}

 	public void setViewEditpart(IViewEditpart viewEditpart) {
 		if (this.viewEditpart == null) {
 			this.viewEditpart = viewEditpart;
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public String getPresentationURI() {
 		checkDisposed();

 		return presentationURI;
 	}

 	/**
 	 * Delegates the service request to the view set.
 	 *
 	 * @param <S>
 	 *            the generic type
 	 * @param selector
 	 *            the selector
 	 * @return the s
 	 */
 	@SuppressWarnings("unchecked")
 	protected <S> S delegateGetService(String selector) {
 		if (selector.equals(ILocaleChangedService.ID)) {
 			LocaleChangedService service = new LocaleChangedService();
 			registerService(selector, service);
 			return (S) service;
 		} else if (selector.equals(IWidgetMouseClickService.ID)) {
 			IWidgetMouseClickService service = getViewEditpart().createService(IWidgetMouseClickService.class);
 			registerService(selector, service);
 			return (S) service;
 		} else if (selector.equals(IWidgetAssocationsService.ID)) {
 			IWidgetAssocationsService<?, ?> service = getViewEditpart().createService(IWidgetAssocationsService.class);
 			registerService(selector, service);
 			return (S) service;
 		} else {
 			if (thirdpartyServiceDelegate != null) {
 				if (thirdpartyServiceDelegate.isFor(selector, this)) {
 					Object service = thirdpartyServiceDelegate.createService(selector, this);
 					// do NOT register the service since another call may return
 					// a different service instance.
 					return (S) service;
 				}
 			}
 		}

 		return null;
 	}

 	/**
 	 * Sets the URI that is used to determine the UI kit that should be used to
 	 * render the UI.
 	 *
 	 * @param presentationURI
 	 *            URI selecting the UI-Kit
 	 */
 	public void setPresentationURI(String presentationURI) {
 		checkDisposed();

 		if (isRendered()) {
 			throw new IllegalArgumentException("Not valid if already rendered!");
 		}

 		this.presentationURI = presentationURI;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public IViewEditpart getViewEditpart() {
 		checkDisposed();

 		return viewEditpart;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.ecview.core.common.context.IViewContext#
 	 * getVisibilityManager()
 	 */
 	@Override
 	public IVisibilityManager getVisibilityManager() {
 		if (visibilityManager == null) {
 			visibilityManager = new VisibilityManager(this);
 		}
 		return visibilityManager;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.ecview.core.common.context.IViewContext#
 	 * getExposedActions()
 	 */
 	@Override
 	public List<IExposedActionEditpart> getExposedActions() {
 		return getViewEditpart().getExposedActions();
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public Object getRootLayout() {
 		checkDisposed();

 		return rootLayout;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.common.dispose.AbstractDisposable#dispose()
 	 */
 	@Override
 	synchronized public void dispose() {
 		preDispose();

 		super.dispose();
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public synchronized void render(String presentationURI, Object rootLayout, Map<String, Object> parameter)
 			throws ContextException {
 		checkDisposed();
 		renderingParameters = parameter;

 		if (rootLayout == null) {
 			throw new ContextException("RootLayout must not be null!");
 		}

 		if (rendered) {
 			throw new ContextException("Has already been rendered!");
 		}

 		try {
 			this.presentationURI = presentationURI;
 			this.rootLayout = rootLayout;

 			// start to render
 			//
 			IViewEditpart editPart = getViewEditpart();

 			if (parameter != null) {
 				// Set the configuration
 				IConfiguration config = (IConfiguration) parameter.get(IViewContext.PARAM_CONFIGURATION);
 				if (config != null) {
 					editPart.setConfiguration(config);
 				}

 				// Set the third party service delegate
 				thirdpartyServiceDelegate = (IThirdPartyServiceDelegate) parameter
 						.get(IViewContext.PARAM_THIRDPARTY_SERVICE_PROVIDER);

 				// Register all services
 				@SuppressWarnings("unchecked")
 				Map<String, Object> services = (Map<String, Object>) parameter.get(IViewContext.PARAM_SERVICES);
 				if (services != null) {
 					for (Map.Entry<String, Object> entry : services.entrySet()) {
 						if (thirdpartyServiceDelegate == null
 								&& entry.getKey().equals(IViewContext.PARAM_THIRDPARTY_SERVICE_PROVIDER)) {
 							thirdpartyServiceDelegate = (IThirdPartyServiceDelegate) entry.getValue();
 						}

 						registerService(entry.getKey(), entry.getValue());
 					}
 				}
 			}

 			// render the UI
 			editPart.render(parameter);

 			ILifecycleService lifecycleService = getService(ILifecycleService.class.getName());
 			// send event that context is disposed
 			if (lifecycleService != null) {
 				lifecycleService
 						.notifyLifecycle(new LifecycleEvent(getViewEditpart(), ILifecycleEvent.CONTEXT_CREATED));
 			}
 		} catch (Exception ex) {
 			logger.error("{}", ex);
 		} finally {
 			rendered = true;
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public boolean isRendered() {
 		checkDisposed();

 		return rendered;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.context.IViewContext#exec(java.lang.
 	 * Runnable)
 	 */
 	@Override
 	public void exec(Runnable runnable) {
 		checkDisposed();

 		getViewEditpart().exec(runnable);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.context.IViewContext#execAsync(java.
 	 * lang.Runnable)
 	 */
 	@Override
 	public Future<?> execAsync(Runnable runnable) {
 		checkDisposed();

 		return getViewEditpart().execAsync(runnable);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.ecview.core.common.context.DisposableContext#
 	 * updateLocale(java.util.Locale)
 	 */
 	@Override
 	protected void updateLocale(Locale locale) {
 		ILocaleChangedService service = getService(ILocaleChangedService.ID);
 		if (service != null) {
 			service.notifyLocaleChanged(locale);
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.context.IViewContext#findModelElement
 	 * (java.lang.String)
 	 */
 	@Override
 	public Object findModelElement(String id) {
 		return viewEditpart.findModelElement(id);
 	}


 	@Override
 	public Object findYEmbeddableElement(String id) {
 		return viewEditpart.findYEmbeddableElement(id);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.context.IViewContext#findBoundField(
 	 * java.lang.String)
 	 */
 	@Override
 	public Object findBoundField(String bindingIdRegex) {
 		return viewEditpart.findBoundField(bindingIdRegex);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.context.DisposableContext#preDispose(
 	 * )
 	 */
 	protected void preDispose() {
 		super.preDispose();

 		finalDispose.put(IWidgetAssocationsService.class.getName(), getService(IWidgetAssocationsService.ID));
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public void internalDispose() {
 		ILifecycleService lifecycleService = getService(ILifecycleService.class.getName());
 		try {
 			viewEditpart.dispose();

 			// Clear all associations
 			@SuppressWarnings("rawtypes")
 			IWidgetAssocationsService service = (IWidgetAssocationsService) finalDispose
 					.get(IWidgetAssocationsService.ID);
 			if (service != null) {
 				service.clear();
 			}
 			finalDispose = null;
 			visibilityManager = null;
 		} finally {
 			super.internalDispose();

 			// send event that context is disposed
 			if (lifecycleService != null) {
 				lifecycleService
 						.notifyLifecycle(new LifecycleEvent(getViewEditpart(), ILifecycleEvent.CONTEXT_DISPOSED));
 			}
 		}
 	}

 	/**
 	 * This service notifies interested parties about a locale change.
 	 */
 	public class LocaleChangedService extends AbstractDisposable implements ILocaleChangedService {

 		/** The listeners. */
 		private List<LocaleListener> listeners;

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.osbp.ecview.core.common.context.ILocaleChangedService#
 		 * addLocaleListener(org.eclipse.osbp.ecview.core.common.context.
 		 * ILocaleChangedService.LocaleListener)
 		 */
 		@Override
 		public void addLocaleListener(LocaleListener listener) {
 			checkDisposed();

 			if (listeners == null) {
 				listeners = new ArrayList<ILocaleChangedService.LocaleListener>();
 			}

 			if (!listeners.contains(listener)) {
 				listeners.add(listener);
 			}
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.osbp.ecview.core.common.context.ILocaleChangedService#
 		 * removeLocaleListener(org.eclipse.osbp.ecview.core.common.context.
 		 * ILocaleChangedService.LocaleListener)
 		 */
 		@Override
 		public void removeLocaleListener(LocaleListener listener) {
 			checkDisposed();

 			if (listeners == null) {
 				return;
 			}

 			listeners.remove(listener);
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.osbp.ecview.core.common.context.ILocaleChangedService#
 		 * notifyLocaleChanged(java.util.Locale)
 		 */
 		public void notifyLocaleChanged(Locale locale) {
 			if (listeners == null) {
 				return;
 			}

 			for (LocaleListener listener : listeners.toArray(new LocaleListener[listeners.size()])) {
 				listener.localeChanged(locale);
 			}
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.osbp.runtime.common.dispose.AbstractDisposable#
 		 * internalDispose()
 		 */
 		@Override
 		protected void internalDispose() {
 			if (listeners != null) {
 				listeners.clear();
 				listeners = null;
 			}
 		}

 	}

 	@Override
 	public Map<String, Object> getRenderingParams() {
 		return renderingParameters;
 	}

 	@Override
 	public void setRenderingParams(Map<String, Object> params) {
 		renderingParameters.clear();
 		renderingParameters.putAll(params);
 	}
 }
	/**
	* Copyright (c) 2012, 2015 - Lunifera GmbH (Austria), Loetz GmbH&Co.KG and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Florian Pirchner - initial API and implementation
	*/
	package org.eclipse.osbp.ecview.core.common.context;

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Locale;
	import java.util.Map;
	import java.util.concurrent.Future;

	import org.eclipse.osbp.ecview.core.common.editpart.IExposedActionEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.IViewEditpart;
	import org.eclipse.osbp.ecview.core.common.notification.ILifecycleEvent;
	import org.eclipse.osbp.ecview.core.common.notification.ILifecycleService;
	import org.eclipse.osbp.ecview.core.common.notification.LifecycleEvent;
	import org.eclipse.osbp.ecview.core.common.services.IThirdPartyServiceDelegate;
	import org.eclipse.osbp.ecview.core.common.services.IWidgetAssocationsService;
	import org.eclipse.osbp.ecview.core.common.tooling.IWidgetMouseClickService;
	import org.eclipse.osbp.ecview.core.common.visibility.IVisibilityManager;
	import org.eclipse.osbp.ecview.core.common.visibility.impl.VisibilityManager;
	import org.eclipse.osbp.runtime.common.dispose.AbstractDisposable;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	/**
	* Implementation of the {@link IViewContext}.
	*/
	public class ViewContext extends DisposableContext implements IViewContext {

	/** The Constant logger. */
	private static final Logger logger = LoggerFactory.getLogger(ViewContext.class);

	/** The final dispose. */
	// preparations for final disposal after view has been disposed
	private Map<String, Object> finalDispose = new HashMap<String, Object>();

	/** The rendering parameters. */
	private Map<String, Object> renderingParameters = new HashMap<>();

	/** The visibility manager. */
	private VisibilityManager visibilityManager;

	/** The view editpart. */
	private IViewEditpart viewEditpart;

	/** The root layout. */
	private Object rootLayout;

	/** The presentation uri. */
	private String presentationURI;

	/** The rendered. */
	private boolean rendered;

	/** The thirdparty service delegate. */
	private IThirdPartyServiceDelegate thirdpartyServiceDelegate;

	/**
	* Default Constructor for tests only! Do not use.
	*/
	public ViewContext() {
	}

	public void setViewEditpart(IViewEditpart viewEditpart) {
	if (this.viewEditpart == null) {
	this.viewEditpart = viewEditpart;
	}
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public String getPresentationURI() {
	checkDisposed();

	return presentationURI;
	}

	/**
	* Delegates the service request to the view set.
	*
	* @param <S>
	* the generic type
	* @param selector
	* the selector
	* @return the s
	*/
	@SuppressWarnings("unchecked")
	protected <S> S delegateGetService(String selector) {
	if (selector.equals(ILocaleChangedService.ID)) {
	LocaleChangedService service = new LocaleChangedService();
	registerService(selector, service);
	return (S) service;
	} else if (selector.equals(IWidgetMouseClickService.ID)) {
	IWidgetMouseClickService service = getViewEditpart().createService(IWidgetMouseClickService.class);
	registerService(selector, service);
	return (S) service;
	} else if (selector.equals(IWidgetAssocationsService.ID)) {
	IWidgetAssocationsService<?, ?> service = getViewEditpart().createService(IWidgetAssocationsService.class);
	registerService(selector, service);
	return (S) service;
	} else {
	if (thirdpartyServiceDelegate != null) {
	if (thirdpartyServiceDelegate.isFor(selector, this)) {
	Object service = thirdpartyServiceDelegate.createService(selector, this);
	// do NOT register the service since another call may return
	// a different service instance.
	return (S) service;
	}
	}
	}

	return null;
	}

	/**
	* Sets the URI that is used to determine the UI kit that should be used to
	* render the UI.
	*
	* @param presentationURI
	* URI selecting the UI-Kit
	*/
	public void setPresentationURI(String presentationURI) {
	checkDisposed();

	if (isRendered()) {
	throw new IllegalArgumentException("Not valid if already rendered!");
	}

	this.presentationURI = presentationURI;
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public IViewEditpart getViewEditpart() {
	checkDisposed();

	return viewEditpart;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.ecview.core.common.context.IViewContext#
	* getVisibilityManager()
	*/
	@Override
	public IVisibilityManager getVisibilityManager() {
	if (visibilityManager == null) {
	visibilityManager = new VisibilityManager(this);
	}
	return visibilityManager;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.ecview.core.common.context.IViewContext#
	* getExposedActions()
	*/
	@Override
	public List<IExposedActionEditpart> getExposedActions() {
	return getViewEditpart().getExposedActions();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public Object getRootLayout() {
	checkDisposed();

	return rootLayout;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.common.dispose.AbstractDisposable#dispose()
	*/
	@Override
	synchronized public void dispose() {
	preDispose();

	super.dispose();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public synchronized void render(String presentationURI, Object rootLayout, Map<String, Object> parameter)
	throws ContextException {
	checkDisposed();
	renderingParameters = parameter;

	if (rootLayout == null) {
	throw new ContextException("RootLayout must not be null!");
	}

	if (rendered) {
	throw new ContextException("Has already been rendered!");
	}

	try {
	this.presentationURI = presentationURI;
	this.rootLayout = rootLayout;

	// start to render
	//
	IViewEditpart editPart = getViewEditpart();

	if (parameter != null) {
	// Set the configuration
	IConfiguration config = (IConfiguration) parameter.get(IViewContext.PARAM_CONFIGURATION);
	if (config != null) {
	editPart.setConfiguration(config);
	}

	// Set the third party service delegate
	thirdpartyServiceDelegate = (IThirdPartyServiceDelegate) parameter
	.get(IViewContext.PARAM_THIRDPARTY_SERVICE_PROVIDER);

	// Register all services
	@SuppressWarnings("unchecked")
	Map<String, Object> services = (Map<String, Object>) parameter.get(IViewContext.PARAM_SERVICES);
	if (services != null) {
	for (Map.Entry<String, Object> entry : services.entrySet()) {
	if (thirdpartyServiceDelegate == null
	&& entry.getKey().equals(IViewContext.PARAM_THIRDPARTY_SERVICE_PROVIDER)) {
	thirdpartyServiceDelegate = (IThirdPartyServiceDelegate) entry.getValue();
	}

	registerService(entry.getKey(), entry.getValue());
	}
	}
	}

	// render the UI
	editPart.render(parameter);

	ILifecycleService lifecycleService = getService(ILifecycleService.class.getName());
	// send event that context is disposed
	if (lifecycleService != null) {
	lifecycleService
	.notifyLifecycle(new LifecycleEvent(getViewEditpart(), ILifecycleEvent.CONTEXT_CREATED));
	}
	} catch (Exception ex) {
	logger.error("{}", ex);
	} finally {
	rendered = true;
	}
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public boolean isRendered() {
	checkDisposed();

	return rendered;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.IViewContext#exec(java.lang.
	* Runnable)
	*/
	@Override
	public void exec(Runnable runnable) {
	checkDisposed();

	getViewEditpart().exec(runnable);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.IViewContext#execAsync(java.
	* lang.Runnable)
	*/
	@Override
	public Future<?> execAsync(Runnable runnable) {
	checkDisposed();

	return getViewEditpart().execAsync(runnable);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.ecview.core.common.context.DisposableContext#
	* updateLocale(java.util.Locale)
	*/
	@Override
	protected void updateLocale(Locale locale) {
	ILocaleChangedService service = getService(ILocaleChangedService.ID);
	if (service != null) {
	service.notifyLocaleChanged(locale);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.IViewContext#findModelElement
	* (java.lang.String)
	*/
	@Override
	public Object findModelElement(String id) {
	return viewEditpart.findModelElement(id);
	}


	@Override
	public Object findYEmbeddableElement(String id) {
	return viewEditpart.findYEmbeddableElement(id);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.IViewContext#findBoundField(
	* java.lang.String)
	*/
	@Override
	public Object findBoundField(String bindingIdRegex) {
	return viewEditpart.findBoundField(bindingIdRegex);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.DisposableContext#preDispose(
	* )
	*/
	protected void preDispose() {
	super.preDispose();

	finalDispose.put(IWidgetAssocationsService.class.getName(), getService(IWidgetAssocationsService.ID));
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void internalDispose() {
	ILifecycleService lifecycleService = getService(ILifecycleService.class.getName());
	try {
	viewEditpart.dispose();

	// Clear all associations
	@SuppressWarnings("rawtypes")
	IWidgetAssocationsService service = (IWidgetAssocationsService) finalDispose
	.get(IWidgetAssocationsService.ID);
	if (service != null) {
	service.clear();
	}
	finalDispose = null;
	visibilityManager = null;
	} finally {
	super.internalDispose();

	// send event that context is disposed
	if (lifecycleService != null) {
	lifecycleService
	.notifyLifecycle(new LifecycleEvent(getViewEditpart(), ILifecycleEvent.CONTEXT_DISPOSED));
	}
	}
	}

	/**
	* This service notifies interested parties about a locale change.
	*/
	public class LocaleChangedService extends AbstractDisposable implements ILocaleChangedService {

	/** The listeners. */
	private List<LocaleListener> listeners;

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.ILocaleChangedService#
	* addLocaleListener(org.eclipse.osbp.ecview.core.common.context.
	* ILocaleChangedService.LocaleListener)
	*/
	@Override
	public void addLocaleListener(LocaleListener listener) {
	checkDisposed();

	if (listeners == null) {
	listeners = new ArrayList<ILocaleChangedService.LocaleListener>();
	}

	if (!listeners.contains(listener)) {
	listeners.add(listener);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.ILocaleChangedService#
	* removeLocaleListener(org.eclipse.osbp.ecview.core.common.context.
	* ILocaleChangedService.LocaleListener)
	*/
	@Override
	public void removeLocaleListener(LocaleListener listener) {
	checkDisposed();

	if (listeners == null) {
	return;
	}

	listeners.remove(listener);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.context.ILocaleChangedService#
	* notifyLocaleChanged(java.util.Locale)
	*/
	public void notifyLocaleChanged(Locale locale) {
	if (listeners == null) {
	return;
	}

	for (LocaleListener listener : listeners.toArray(new LocaleListener[listeners.size()])) {
	listener.localeChanged(locale);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.common.dispose.AbstractDisposable#
	* internalDispose()
	*/
	@Override
	protected void internalDispose() {
	if (listeners != null) {
	listeners.clear();
	listeners = null;
	}
	}

	}

	@Override
	public Map<String, Object> getRenderingParams() {
	return renderingParameters;
	}

	@Override
	public void setRenderingParams(Map<String, Object> params) {
	renderingParameters.clear();
	renderingParameters.putAll(params);
	}
	}