Yuta HIGUCHI | 5f3c033 | 2017-01-09 17:41:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.cli.net.completer; |
| 17 | |
| 18 | import java.lang.reflect.Modifier; |
| 19 | import java.util.Arrays; |
| 20 | import java.util.List; |
| 21 | import java.util.Objects; |
| 22 | import java.util.stream.Collectors; |
| 23 | |
| 24 | import org.onosproject.cli.AbstractChoicesCompleter; |
| 25 | import org.onosproject.net.AnnotationKeys; |
| 26 | |
| 27 | /** |
| 28 | * Completer for annotation keys declared in {@link AnnotationKeys}. |
| 29 | */ |
| 30 | public class AnnotationKeysCompleter extends AbstractChoicesCompleter { |
| 31 | |
| 32 | |
| 33 | @Override |
| 34 | protected List<String> choices() { |
| 35 | |
| 36 | return Arrays.asList(AnnotationKeys.class.getFields()) |
| 37 | .stream() |
| 38 | .filter(f -> f.getType() == String.class) |
| 39 | .filter(f -> Modifier.isStatic(f.getModifiers())) |
| 40 | .map(f -> { |
| 41 | try { |
| 42 | return (String) f.get(null); |
| 43 | } catch (IllegalArgumentException | IllegalAccessException e) { |
| 44 | return null; |
| 45 | } |
| 46 | }) |
| 47 | .filter(Objects::nonNull) |
| 48 | .collect(Collectors.toList()); |
| 49 | } |
| 50 | |
| 51 | } |