| // Copyright 2006, 2007, 2008, 2009, 2010 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.tapestry5.internal.services; |
| |
| import java.util.List; |
| |
| import org.apache.tapestry5.Link; |
| import org.apache.tapestry5.internal.TapestryInternalUtils; |
| import org.apache.tapestry5.internal.structure.Page; |
| import org.apache.tapestry5.ioc.internal.util.CollectionFactory; |
| import org.apache.tapestry5.ioc.internal.util.InternalUtils; |
| import org.apache.tapestry5.ioc.services.TypeCoercer; |
| import org.apache.tapestry5.services.ComponentClassResolver; |
| import org.apache.tapestry5.services.ComponentEventLinkEncoder; |
| import org.apache.tapestry5.services.ComponentEventRequestParameters; |
| import org.apache.tapestry5.services.LinkCreationHub; |
| import org.apache.tapestry5.services.LinkCreationListener; |
| import org.apache.tapestry5.services.LinkCreationListener2; |
| import org.apache.tapestry5.services.PageRenderRequestParameters; |
| import org.apache.tapestry5.services.RequestGlobals; |
| |
| @SuppressWarnings("all") |
| public class LinkSourceImpl implements LinkSource, LinkCreationHub |
| { |
| private final PageRenderQueue pageRenderQueue; |
| |
| private final PageActivationContextCollector contextCollector; |
| |
| private final ComponentEventLinkEncoder linkEncoder; |
| |
| private final List<LinkCreationListener2> listeners = CollectionFactory.newThreadSafeList(); |
| |
| private final TypeCoercer typeCoercer; |
| |
| private final ComponentClassResolver resolver; |
| |
| private final RequestGlobals requestGlobals; |
| |
| private final RequestPageCache pageCache; |
| |
| public LinkSourceImpl(PageRenderQueue pageRenderQueue, PageActivationContextCollector contextCollector, |
| TypeCoercer typeCoercer, ComponentClassResolver resolver, ComponentEventLinkEncoder linkEncoder, |
| RequestGlobals requestGlobals, RequestPageCache pageCache, List<LinkCreationListener2> configuration) |
| { |
| this.pageRenderQueue = pageRenderQueue; |
| this.contextCollector = contextCollector; |
| this.typeCoercer = typeCoercer; |
| this.resolver = resolver; |
| this.linkEncoder = linkEncoder; |
| this.requestGlobals = requestGlobals; |
| this.pageCache = pageCache; |
| |
| listeners.addAll(configuration); |
| } |
| |
| public Link createComponentEventLink(Page page, String nestedId, String eventType, boolean forForm, |
| Object... eventContext) |
| { |
| assert page != null; |
| assert InternalUtils.isNonBlank(eventType); |
| |
| Page activePage = pageRenderQueue.getRenderingPage(); |
| |
| // See TAPESTRY-2184 |
| if (activePage == null) |
| activePage = page; |
| |
| String activePageName = activePage.getName(); |
| |
| Object[] pageActivationContext = contextCollector.collectPageActivationContext(activePageName); |
| |
| ComponentEventRequestParameters parameters = new ComponentEventRequestParameters(activePageName, |
| page.getName(), toBlank(nestedId), eventType, |
| new ArrayEventContext(typeCoercer, pageActivationContext), new ArrayEventContext(typeCoercer, |
| eventContext)); |
| |
| Link link = linkEncoder.createComponentEventLink(parameters, forForm); |
| |
| for (LinkCreationListener2 listener : listeners) |
| listener.createdComponentEventLink(link, parameters); |
| |
| return link; |
| } |
| |
| private String toBlank(String input) |
| { |
| return input == null ? "" : input; |
| } |
| |
| public Link createPageRenderLink(String pageName, boolean override, Object... pageActivationContext) |
| { |
| // Resolve the page name to its canonical format (the best version for URLs). This also |
| // validates |
| // the page name. |
| |
| String canonical = resolver.canonicalizePageName(pageName); |
| |
| Object[] context = (override || pageActivationContext.length != 0) ? pageActivationContext : contextCollector |
| .collectPageActivationContext(canonical); |
| |
| boolean loopback = canonical.equals(requestGlobals.getActivePageName()) |
| && pageCache.get(pageName).hasResetListeners(); |
| |
| PageRenderRequestParameters parameters = new PageRenderRequestParameters(canonical, new ArrayEventContext( |
| typeCoercer, context), loopback); |
| |
| Link link = linkEncoder.createPageRenderLink(parameters); |
| |
| for (LinkCreationListener2 listener : listeners) |
| listener.createdPageRenderLink(link, parameters); |
| |
| return link; |
| } |
| |
| public LinkCreationHub getLinkCreationHub() |
| { |
| return this; |
| } |
| |
| public void addListener(LinkCreationListener listener) |
| { |
| assert listener != null; |
| |
| addListener(TapestryInternalUtils.toLinkCreationListener2(listener)); |
| } |
| |
| public void removeListener(LinkCreationListener listener) |
| { |
| throw new UnsupportedOperationException("Removing listeners from LinkSource is not longer supported."); |
| } |
| |
| public void addListener(LinkCreationListener2 listener) |
| { |
| assert listener != null; |
| |
| listeners.add(listener); |
| } |
| } |