| /* |
| * 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.karaf.webconsole.blueprint.internal.details; |
| |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.karaf.webconsole.core.BasePage; |
| import org.apache.wicket.PageParameters; |
| import org.apache.wicket.markup.html.basic.Label; |
| import org.apache.wicket.markup.html.list.ListItem; |
| import org.apache.wicket.markup.html.list.ListView; |
| import org.apache.wicket.model.IModel; |
| import org.apache.wicket.model.LoadableDetachableModel; |
| import org.ops4j.pax.wicket.api.PaxWicketBean; |
| import org.ops4j.pax.wicket.api.PaxWicketMountPoint; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.blueprint.container.BlueprintContainer; |
| import org.osgi.service.blueprint.reflect.ComponentMetadata; |
| |
| @PaxWicketMountPoint(mountPoint = "/osgi/blueprint/details") |
| public class DetailsPage extends BasePage { |
| |
| @PaxWicketBean(name = "blueprintBundleContext") |
| private BundleContext context; |
| |
| public DetailsPage(PageParameters params) { |
| IModel<List<MetadataWrappper>> model = new MetadataModel(params); |
| if (model.getObject() == null) { |
| fillEmptyListView(); |
| return; |
| } |
| fillListViewWithMetaModel(model); |
| } |
| |
| private void fillEmptyListView() { |
| add(new ListView("components") { |
| @Override |
| protected void populateItem(ListItem item) { |
| // do nothing :) |
| } |
| }); |
| } |
| |
| private void fillListViewWithMetaModel(IModel<List<MetadataWrappper>> model) { |
| add(new ListView<MetadataWrappper>("components", model) { |
| @Override |
| protected void populateItem(ListItem<MetadataWrappper> item) { |
| MetadataWrappper metadata = item.getModelObject(); |
| item.add(new Label("componentId", metadata.id)); |
| item.add(new Label("type", metadata.interfaces)); |
| } |
| }); |
| } |
| |
| private class MetadataModel extends LoadableDetachableModel<List<MetadataWrappper>> { |
| |
| private PageParameters pageParams; |
| |
| public MetadataModel(PageParameters pageParams) { |
| this.pageParams = pageParams; |
| } |
| |
| @Override |
| protected List<MetadataWrappper> load() { |
| ServiceReference reference = null; |
| try { |
| reference = retrieveReference(); |
| if (reference == null) { |
| return null; |
| } |
| return extractMetadata(reference); |
| } finally { |
| if (reference != null) { |
| context.ungetService(reference); |
| } |
| } |
| } |
| |
| private List<MetadataWrappper> extractMetadata(ServiceReference reference) { |
| BlueprintContainer container = (BlueprintContainer) context.getService(reference); |
| List<MetadataWrappper> extractedMetadata = new ArrayList<DetailsPage.MetadataWrappper>(); |
| Collection<ComponentMetadata> metadata = container.getMetadata(ComponentMetadata.class); |
| for (ComponentMetadata originalMetadata : metadata) { |
| extractedMetadata.add(new MetadataWrappper(originalMetadata)); |
| } |
| return extractedMetadata; |
| } |
| |
| private ServiceReference retrieveReference() { |
| ServiceReference reference = null; |
| Bundle bundle = context.getBundle(pageParams.getLong("bundleId")); |
| ServiceReference[] references = bundle.getRegisteredServices(); |
| for (ServiceReference ref : references) { |
| String[] classes = (String[]) ref.getProperty("objectClass"); |
| for (String clazz : classes) { |
| if ("org.osgi.service.blueprint.container.BlueprintContainer".equals(clazz)) { |
| reference = ref; |
| break; |
| } |
| } |
| } |
| return reference; |
| } |
| } |
| |
| private static class MetadataWrappper implements Serializable { |
| private String id; |
| private String interfaces; |
| |
| public MetadataWrappper(ComponentMetadata metadata) { |
| id = metadata.getId(); |
| interfaces = Arrays.toString(metadata.getClass().getInterfaces()); |
| } |
| |
| } |
| |
| } |