| /* |
| * 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.webconsole.osgi.core.pkg; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.felix.utils.manifest.Clause; |
| import org.apache.karaf.webconsole.core.table.advanced.BaseDataProvider; |
| import org.apache.karaf.webconsole.osgi.core.manifest.ManifestUtil; |
| import org.apache.wicket.model.IModel; |
| import org.osgi.framework.Bundle; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class HeaderDataProvider extends BaseDataProvider<Clause> { |
| |
| private static final long serialVersionUID = 1L; |
| private transient Logger logger = LoggerFactory.getLogger(getClass()); |
| private transient Clause[] clauses; |
| private final Bundle bundle; |
| private final String header; |
| |
| public HeaderDataProvider(Bundle bundle, String header) { |
| this.bundle = bundle; |
| this.header = header; |
| |
| try { |
| clauses = ManifestUtil.getHeader(bundle, header); |
| } catch (IOException e) { |
| clauses = new Clause[0]; |
| logger.error("Cannot parse bundle headers", e); |
| } |
| } |
| |
| public Iterator<? extends Clause> iterator(long first, long count) { |
| List<Clause> clauses = new ArrayList<Clause>(); |
| clauses.addAll(Arrays.asList(this.clauses)); |
| return clauses.subList((int) first, (int) count).iterator(); |
| } |
| |
| public long size() { |
| return clauses.length; |
| } |
| |
| public IModel<Clause> model(Clause object) { |
| return new ClauseModel(bundle, header, object); |
| } |
| |
| } |