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Diffstat (limited to 'java/sca/modules/wicket/src/main/java/org/apache/tuscany/sca/wicket/TuscanyComponentInjector.java')
| -rw-r--r-- | java/sca/modules/wicket/src/main/java/org/apache/tuscany/sca/wicket/TuscanyComponentInjector.java | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/java/sca/modules/wicket/src/main/java/org/apache/tuscany/sca/wicket/TuscanyComponentInjector.java b/java/sca/modules/wicket/src/main/java/org/apache/tuscany/sca/wicket/TuscanyComponentInjector.java deleted file mode 100644 index b1e9097cdf..0000000000 --- a/java/sca/modules/wicket/src/main/java/org/apache/tuscany/sca/wicket/TuscanyComponentInjector.java +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you 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.tuscany.sca.wicket; -import javax.servlet.ServletContext; - -import org.apache.wicket.Application; -import org.apache.wicket.IClusterable; -import org.apache.wicket.MetaDataKey; -import org.apache.wicket.Session; -import org.apache.wicket.application.IComponentInstantiationListener; -import org.apache.wicket.injection.ComponentInjector; -import org.apache.wicket.injection.web.InjectorHolder; -import org.apache.wicket.model.Model; -import org.apache.wicket.protocol.http.WebApplication; - -/** - * {@link IComponentInstantiationListener} that injects component properties annotated with {@link - * SpringBean} annotations. - * - * To install in yourapplication.init() call - * <code>addComponentInstantiationListener(new SpringComponentInjector(this));</code> Non-wicket - * components such as {@link Session}, {@link Model}, and any other pojo can be injected by calling - * <code>InjectorHolder.getInjector().inject(this)</code> in their constructor. - * - * Based on code from Apache Wicket by Igor Vaynberg and Justin Lee - */ -public class TuscanyComponentInjector extends ComponentInjector -{ - - /** - * Metadata key used to store application context holder in application's metadata - */ - private static MetaDataKey<ApplicationContextHolder> CONTEXT_KEY = new MetaDataKey<ApplicationContextHolder>() - { - - private static final long serialVersionUID = 1L; - - }; - - /** - * Constructor used when spring application context is declared in the spring standard way and - * can be located through {@link - * WebApplicationContextUtils#getRequiredWebApplicationContext(ServletContext)} - * - * @param webapp - * wicket web application - */ - public TuscanyComponentInjector(WebApplication webapp) - { - // locate application context through spring's default location - // mechanism and pass it on to the proper constructor - this(webapp, webapp.getServletContext()); - } - - /** - * Constructor - * - * @param webapp - * wicket web application - * @param ctx - * spring's application context - */ - public TuscanyComponentInjector(WebApplication webapp, ServletContext ctx) - { - if (webapp == null) - { - throw new IllegalArgumentException("Argument [[webapp]] cannot be null"); - } - - if (ctx == null) - { - throw new IllegalArgumentException("Argument [[ctx]] cannot be null"); - } - - // store context in application's metadata ... - webapp.setMetaData(CONTEXT_KEY, new ApplicationContextHolder(ctx)); - - // ... and create and register the annotation aware injector - InjectorHolder.setInjector(new TuscanyInjector(new ContextLocator())); - } - - /** - * This is a holder for the application context. The reason we need a holder is that metadata - * only supports storing serializable objects but application context is not. The holder acts as - * a serializable wrapper for the context. Notice that although holder implements IClusterable - * it really is not because it has a reference to non serializable context - but this is ok - * because metadata objects in application are never serialized. - * - * @author ivaynberg - * - */ - private static class ApplicationContextHolder implements IClusterable - { - private static final long serialVersionUID = 1L; - - private final ServletContext context; - - /** - * Constructor - * - * @param context - */ - public ApplicationContextHolder(ServletContext context) - { - this.context = context; - } - - /** - * @return the context - */ - public ServletContext getContext() - { - return context; - } - } - - /** - * A context locator that locates the context in application's metadata. This locator also keeps - * a transient cache of the lookup. - * - * @author ivaynberg - * - */ - private static class ContextLocator implements IContextLocator - { - private transient ServletContext context; - - private static final long serialVersionUID = 1L; - - public ServletContext getServletContext() - { - if (context == null) - { - context = (Application.get().getMetaData(CONTEXT_KEY)).getContext(); - } - return context; - } - - } - -} |