| /* |
| * 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.features.command.completers; |
| |
| import java.util.List; |
| |
| import org.apache.karaf.features.Feature; |
| import org.apache.karaf.features.FeaturesService; |
| import org.apache.karaf.shell.console.Completer; |
| import org.apache.karaf.shell.console.completer.StringsCompleter; |
| |
| /** |
| * Base completer for feature commands. |
| */ |
| public abstract class FeatureCompleterSupport implements Completer { |
| |
| /** |
| * Feature service. |
| */ |
| protected FeaturesService featuresService; |
| |
| public void setFeaturesService(FeaturesService featuresService) { |
| this.featuresService = featuresService; |
| } |
| |
| public int complete(final String buffer, final int cursor, final List candidates) { |
| StringsCompleter delegate = new StringsCompleter(); |
| try { |
| for (Feature feature : featuresService.listFeatures()) { |
| if (acceptsFeature(feature)) { |
| delegate.getStrings().add(feature.getName()); |
| } |
| } |
| } catch (Exception e) { |
| // Ignore |
| } |
| return delegate.complete(buffer, cursor, candidates); |
| } |
| |
| /** |
| * Method for filtering features. |
| * |
| * @param feature The feature. |
| * @return True if feature should be available in completer. |
| */ |
| protected abstract boolean acceptsFeature(Feature feature); |
| } |