| /* |
| * 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.karaf.subsystem.commands; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.TreeMap; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.apache.karaf.shell.api.action.lifecycle.Reference; |
| import org.osgi.service.subsystem.Subsystem; |
| import org.osgi.service.subsystem.SubsystemConstants; |
| |
| public abstract class SubsystemSupport { |
| |
| @Reference |
| Subsystem subsystem; |
| |
| protected Subsystem getRoot() { |
| Subsystem ss = subsystem; |
| while (!ss.getParents().isEmpty()) { |
| ss = ss.getParents().iterator().next(); |
| } |
| return ss; |
| } |
| |
| protected Subsystem getSubsystem(String id) { |
| List<Subsystem> subsystems = getSubsystems(id); |
| int nb = subsystems.size(); |
| if (nb == 0) { |
| throw new IllegalArgumentException("No subsystem matching " + id); |
| } else if (nb > 1) { |
| throw new IllegalArgumentException("Multiple subsystems matching " + id); |
| } else { |
| return subsystems.get(0); |
| } |
| } |
| |
| protected List<Subsystem> getSubsystems(String id) { |
| // Null id |
| if (id == null || id.isEmpty()) { |
| return getSubsystems(); |
| } |
| List<Subsystem> subsystems = new ArrayList<Subsystem>(); |
| // Try with the id |
| Pattern pattern = Pattern.compile("^\\d+$"); |
| Matcher matcher = pattern.matcher(id); |
| if (matcher.find()) { |
| long lid = Long.parseLong(id); |
| for (Subsystem ss : getSubsystems()) { |
| if (ss.getSubsystemId() == lid) { |
| subsystems.add(ss); |
| } |
| } |
| return subsystems; |
| } |
| // Try with an id range |
| pattern = Pattern.compile("^(\\d+)-(\\d+)$"); |
| matcher = pattern.matcher(id); |
| if (matcher.find()) { |
| int index = id.indexOf('-'); |
| long startId = Long.parseLong(id.substring(0, index)); |
| long endId = Long.parseLong(id.substring(index + 1)); |
| for (Subsystem ss : getSubsystems()) { |
| if (startId <= ss.getSubsystemId() && ss.getSubsystemId() <= endId) { |
| subsystems.add(ss); |
| } |
| } |
| return subsystems; |
| } |
| int index = id.indexOf('/'); |
| Pattern p1, p2; |
| if (index < 0) { |
| p1 = Pattern.compile(id); |
| p2 = null; |
| } else { |
| p1 = Pattern.compile(id.substring(0, index)); |
| p2 = Pattern.compile(id.substring(index + 1)); |
| } |
| for (Subsystem ss : getSubsystems()) { |
| if (p1.matcher(ss.getSymbolicName()).find() && |
| (p2 == null || p2.matcher(ss.getVersion().toString()).find())) { |
| subsystems.add(ss); |
| } |
| } |
| return subsystems; |
| } |
| |
| protected List<Long> getSubsytemIds(Collection<Subsystem> subsystems) { |
| List<Long> ids = new ArrayList<Long>(); |
| for (Subsystem ss : subsystems) { |
| long id = ss.getSubsystemId(); |
| if (!ids.contains(id)) { |
| ids.add(id); |
| } |
| } |
| Collections.sort(ids); |
| return ids; |
| } |
| |
| protected List<Subsystem> getSubsystems() { |
| Map<Long, Subsystem> subsystems = new TreeMap<Long, Subsystem>(); |
| doGetSubsystems(subsystems, getRoot()); |
| return new ArrayList<Subsystem>(subsystems.values()); |
| } |
| |
| private void doGetSubsystems(Map<Long, Subsystem> subsystems, Subsystem subsystem) { |
| if (subsystems.put(subsystem.getSubsystemId(), subsystem) == null) { |
| for (Subsystem child : subsystem.getChildren()) { |
| doGetSubsystems(subsystems, child); |
| } |
| } |
| } |
| |
| } |