osgi/scr/src/main/java/org/apache/karaf/webconsole/osgi/scr/ScrColumn.java

/*
 * 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.osgi.scr;

import static org.apache.wicket.model.Model.of;

import org.apache.felix.scr.Component;
import org.apache.felix.scr.ScrService;
import org.apache.wicket.extensions.markup.html.repeater.data.grid.ICellPopulator;
import org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.model.IModel;
import org.osgi.framework.Bundle;

/**
 * A dedicated column to display scr component states.
 */
public class ScrColumn extends AbstractColumn<Bundle> {

    private static final long serialVersionUID = 1L;

    public ScrColumn(String title) {
        super(of(title));
    }

    public void populateItem(Item<ICellPopulator<Bundle>> cellItem, String componentId, IModel<Bundle> rowModel) {
        ScrService scr = ScrComponent.getScrService();

        Component[] components = null;
        if (scr == null || (components = scr.getComponents(rowModel.getObject())) == null) {
            // no scr for this bundle
            cellItem.add(new Label(componentId));
            return;
        }

        cellItem.add(new ScrColumnPanel(componentId, components));
    }
}