| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * 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.onosproject.cli.app; |
| |
| import org.apache.karaf.shell.api.action.lifecycle.Service; |
| import org.apache.karaf.shell.api.console.CommandLine; |
| import org.apache.karaf.shell.api.console.Session; |
| import org.apache.karaf.shell.support.completers.StringsCompleter; |
| import org.onosproject.app.ApplicationService; |
| import org.onosproject.app.ApplicationState; |
| import org.onosproject.cli.AbstractCompleter; |
| import org.onosproject.core.Application; |
| |
| import com.google.common.base.Strings; |
| import com.google.common.collect.Lists; |
| |
| import java.util.ArrayDeque; |
| import java.util.ArrayList; |
| import java.util.Deque; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map.Entry; |
| import java.util.SortedSet; |
| import java.util.stream.Collectors; |
| |
| import static java.util.Arrays.asList; |
| import static org.onosproject.app.ApplicationState.ACTIVE; |
| import static org.onosproject.app.ApplicationState.INSTALLED; |
| import static org.onosproject.cli.AbstractShellCommand.get; |
| |
| /** |
| * Application name completer. |
| */ |
| @Service |
| public class ApplicationNameCompleter extends AbstractCompleter { |
| @Override |
| public int complete(Session session, CommandLine commandLine, List<String> candidates) { |
| // Delegate string completer |
| StringsCompleter delegate = new StringsCompleter(); |
| |
| // Command name is the second argument. |
| String cmd = commandLine.getArguments()[1]; |
| |
| // Fetch our service and feed it's offerings to the string completer |
| ApplicationService service = get(ApplicationService.class); |
| Iterator<Application> it = service.getApplications().iterator(); |
| SortedSet<String> strings = delegate.getStrings(); |
| if ("install".equals(cmd)) { |
| it = service.getRegisteredApplications().iterator(); |
| while (it.hasNext()) { |
| strings.add(it.next().id().name()); |
| } |
| } else { |
| while (it.hasNext()) { |
| Application app = it.next(); |
| ApplicationState state = service.getState(app.id()); |
| if ("uninstall".equals(cmd) || "download".equals(cmd) || |
| ("activate".equals(cmd) && state == INSTALLED) || |
| ("deactivate".equals(cmd) && state == ACTIVE)) { |
| strings.add(app.id().name()); |
| } |
| } |
| } |
| |
| // add unique suffix to candidates, if user has something in buffer |
| if (!Strings.isNullOrEmpty(commandLine.getCursorArgument())) { |
| List<String> suffixCandidates = strings.stream() |
| // remove onos common prefix |
| .map(full -> full.replaceFirst("org\\.onosproject\\.", "")) |
| // a.b.c -> [c, b.c, a.b.c] |
| .flatMap(appName -> { |
| List<String> suffixes = new ArrayList<>(); |
| Deque<String> frags = new ArrayDeque<>(); |
| // a.b.c -> [c, b, a] -> [c, b.c, a.b.c] |
| Lists.reverse(asList(appName.split("\\."))).forEach(frag -> { |
| frags.addFirst(frag); |
| suffixes.add(frags.stream().collect(Collectors.joining("."))); |
| }); |
| return suffixes.stream(); |
| }) |
| // convert to occurrence map |
| .collect(Collectors.groupingBy(e -> e, Collectors.counting())) |
| .entrySet().stream() |
| // only accept unique suffix |
| .filter(e -> e.getValue() == 1L) |
| .map(Entry::getKey) |
| .collect(Collectors.toList()); |
| |
| delegate.getStrings().addAll(suffixCandidates); |
| } |
| |
| // Now let the completer do the work for figuring out what to offer. |
| return delegate.complete(session, commandLine, candidates); |
| } |
| |
| } |