| /* |
| * 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.brooklyn.launcher.osgi; |
| |
| import java.io.IOException; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.brooklyn.core.mgmt.persist.ConfigLoader; |
| import org.apache.brooklyn.util.collections.MutableMap; |
| import org.apache.brooklyn.util.exceptions.Exceptions; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.service.cm.Configuration; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| |
| public abstract class OsgiConfigLoader implements ConfigLoader { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(OsgiConfigLoader.class); |
| private static final List<String> EXCLUDED_KEYS = ImmutableList.of("service.pid", "felix.fileinstall.filename"); |
| |
| private String propertiesPath; |
| private ConfigurationAdmin configAdmin; |
| |
| public OsgiConfigLoader(String propertiesPath) { |
| this.propertiesPath = propertiesPath; |
| LOG.trace("OsgiConfigLoader instance created"); |
| } |
| |
| // For injection as OSGi bean |
| public void setConfigAdmin(ConfigurationAdmin configAdmin) { |
| this.configAdmin = configAdmin; |
| } |
| |
| // Called by OSGi |
| public abstract void init(); |
| |
| // Called by OSGi |
| public abstract void destroy(); |
| |
| // Called by OSGi when configuration changes |
| public abstract void updateProperties(Map properties); |
| |
| @Override |
| public Map<String, String> load() { |
| if (configAdmin == null) { |
| LOG.warn("No OSGi configuration-admin available - cannot load {}.cfg", propertiesPath); |
| return ImmutableMap.of(); |
| } |
| |
| String filter = '(' + Constants.SERVICE_PID + '=' + propertiesPath + ')'; |
| Configuration[] configs; |
| |
| try { |
| configs = configAdmin.listConfigurations(filter); |
| } catch (InvalidSyntaxException | IOException e) { |
| LOG.info("Cannot list OSGi configurations"); |
| throw Exceptions.propagate(e); |
| } |
| |
| final MutableMap<String, String> map = MutableMap.of(); |
| if (configs != null) { |
| for (Configuration config : configs) { |
| LOG.debug("Reading OSGi configuration from {}; bundleLocation={}", config.getPid(), config.getBundleLocation()); |
| map.putAll(dictToMap(config.getProperties())); |
| } |
| } else { |
| LOG.debug("No OSGi configuration found for {}.cfg; ignoring", propertiesPath); |
| } |
| |
| return map; |
| } |
| |
| private Map<String, String> dictToMap(Dictionary<String, Object> props) { |
| Map<String, String> mapProps = MutableMap.of(); |
| Enumeration<String> keyEnum = props.keys(); |
| while (keyEnum.hasMoreElements()) { |
| String key = keyEnum.nextElement(); |
| if (!EXCLUDED_KEYS.contains(key)) { |
| mapProps.put(key, (String) props.get(key)); |
| } |
| } |
| return mapProps; |
| } |
| } |