| /* |
| * 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.jackrabbit.oak.run.osgi; |
| |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.felix.connect.launch.BundleDescriptor; |
| import org.osgi.framework.Constants; |
| |
| /** |
| * Comparator to simulate start level support of OSgi framework by ordering the startup |
| * sequence. This is required to ensure that required configured is provisioned with |
| * ConfigAdmin before the SCR bundle starts |
| */ |
| class BundleDescriptorComparator implements Comparator<BundleDescriptor> { |
| public static final Integer DEFAULT_START_LEVEL = 20; |
| |
| private final Map<String, Integer> startLevels; |
| |
| public BundleDescriptorComparator() { |
| startLevels = defaultStartLevels(); |
| } |
| |
| public BundleDescriptorComparator(Map<String, Integer> startLevels) { |
| this.startLevels = startLevels; |
| } |
| |
| private Map<String, Integer> defaultStartLevels() { |
| Map<String, Integer> defaultLevels = new HashMap<String, Integer>(); |
| |
| defaultLevels.put("org.apache.sling.commons.logservice", 1); |
| |
| defaultLevels.put("org.apache.felix.configadmin", 2); |
| defaultLevels.put("org.apache.felix.fileinstall", 2); |
| |
| defaultLevels.put("org.apache.felix.scr", 10); |
| return Collections.unmodifiableMap(defaultLevels); |
| } |
| |
| @Override |
| public int compare(BundleDescriptor o1, BundleDescriptor o2) { |
| return getStartLevel(o1).compareTo(getStartLevel(o2)); |
| } |
| |
| private Integer getStartLevel(BundleDescriptor bd) { |
| String symbolicName = ((Map<String, String>) bd.getHeaders()).get(Constants.BUNDLE_SYMBOLICNAME); |
| Integer level = startLevels.get(symbolicName); |
| if (level == null) { |
| level = DEFAULT_START_LEVEL; |
| } |
| return level; |
| } |
| } |