| /** |
| * 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.aries.blueprint.compendium.cm; |
| |
| import java.io.IOException; |
| import java.util.Dictionary; |
| import java.util.Map; |
| |
| import org.apache.aries.blueprint.ext.AbstractPropertyPlaceholder; |
| import org.apache.aries.blueprint.ext.PropertyPlaceholder; |
| import org.osgi.service.blueprint.container.BlueprintContainer; |
| import org.osgi.service.blueprint.container.ComponentDefinitionException; |
| import org.osgi.service.cm.Configuration; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * TODO: javadoc |
| * |
| * @version $Rev$, $Date$ |
| */ |
| public class CmPropertyPlaceholder extends PropertyPlaceholder { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(CmPropertyPlaceholder.class); |
| |
| private BlueprintContainer blueprintContainer; |
| private ConfigurationAdmin configAdmin; |
| private String persistentId; |
| private transient Configuration config; |
| |
| public BlueprintContainer getBlueprintContainer() { |
| return blueprintContainer; |
| } |
| |
| public void setBlueprintContainer(BlueprintContainer blueprintContainer) { |
| this.blueprintContainer = blueprintContainer; |
| } |
| |
| public ConfigurationAdmin getConfigAdmin() { |
| return configAdmin; |
| } |
| |
| public void setConfigAdmin(ConfigurationAdmin configAdmin) { |
| this.configAdmin = configAdmin; |
| } |
| |
| public String getPersistentId() { |
| return persistentId; |
| } |
| |
| public void setPersistentId(String persistentId) { |
| this.persistentId = persistentId; |
| } |
| |
| protected String getProperty(String val) { |
| LOGGER.debug("Retrieving property value {} from configuration with pid {}", val, persistentId); |
| Configuration config = getConfig(); |
| Object v = null; |
| if (config != null) { |
| Dictionary props = config.getProperties(); |
| if (props != null) { |
| v = props.get(val); |
| if (v != null) { |
| LOGGER.debug("Found property value {}", v); |
| } else { |
| LOGGER.debug("Property not found in configuration"); |
| } |
| } else { |
| LOGGER.debug("No dictionary available from configuration"); |
| } |
| } |
| if (v == null) { |
| v = super.getProperty(val); |
| } |
| return v != null ? v.toString() : null; |
| } |
| |
| protected synchronized Configuration getConfig() { |
| if (config == null) { |
| try { |
| config = CmUtils.getConfiguration(configAdmin, persistentId); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| return config; |
| } |
| |
| } |