/*
* 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.scr.command.action;
import org.apache.felix.scr.Component;
import org.apache.felix.scr.ScrService;
import org.apache.karaf.scr.command.ScrCommandConstants;
import org.apache.karaf.scr.command.ScrUtils;
import org.apache.karaf.scr.command.support.IdComparator;
import org.apache.karaf.shell.api.action.Command;
import org.apache.karaf.shell.api.action.lifecycle.Service;
import org.apache.karaf.shell.support.table.ShellTable;
import java.util.Arrays;
/**
* List all the components currently installed.
*/
@Command(scope = ScrCommandConstants.SCR_COMMAND, name = ScrCommandConstants.LIST_FUNCTION, description = "Display available components")
@Service
public class ListAction extends ScrActionSupport {
private final IdComparator idComparator = new IdComparator();
@Override
protected Object doScrAction(ScrService scrService) throws Exception {
ShellTable table = new ShellTable();
table.column("ID");
table.column("State");
table.column("Component Name");
Component[] components = scrService.getComponents();
Arrays.sort(components, idComparator);
for (Component component : ScrUtils.emptyIfNull(Component.class, components)) {
// Display only non hidden components, or all if showHidden is true
if (showHidden || !ScrActionSupport.isHiddenComponent(component)) {
table.addRow().addContent(component.getId(), ScrUtils.getState(component.getState()), component.getName());
}
}
table.print(System.out);
return null;
}
}