openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/configuration/ConfigurationServiceFactoryOsgiImpl.java

   1 /*
   2  * Copyright (c) 2018 Red Hat, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowplugin.impl.configuration;
   9
  10 import java.io.IOException;
  11 import java.util.Enumeration;
  12 import java.util.HashMap;
  13 import java.util.Map;
  14 import java.util.Optional;
  15 import org.opendaylight.openflowplugin.api.OFConstants;
  16 import org.opendaylight.openflowplugin.api.openflow.configuration.ConfigurationService;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflow.provider.config.rev160510.OpenflowProviderConfig;
  18 import org.osgi.framework.BundleContext;
  19 import org.osgi.service.cm.Configuration;
  20 import org.osgi.service.cm.ConfigurationAdmin;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 // NOT @Singleton @Service - we do not want this OSGi specific implementation to be auto-discovered in a standalone env
  25 public class ConfigurationServiceFactoryOsgiImpl extends ConfigurationServiceFactoryImpl {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(ConfigurationServiceFactoryOsgiImpl.class);
  28
  29     private final BundleContext bundleContext;
  30
  31     public ConfigurationServiceFactoryOsgiImpl(BundleContext bundleContext) {
  32         this.bundleContext = bundleContext;
  33     }
  34
  35     @Override
  36     public ConfigurationService newInstance(OpenflowProviderConfig providerConfig) {
  37         ConfigurationService cs = super.newInstance(providerConfig);
  38         update(cs);
  39         return cs;
  40     }
  41
  42     private void update(ConfigurationService configurationService) {
  43         LOG.info("Loading configuration from '{}' configuration file", OFConstants.CONFIG_FILE_ID);
  44         Optional.ofNullable(bundleContext.getServiceReference(ConfigurationAdmin.class)).ifPresent(serviceReference -> {
  45             final ConfigurationAdmin configurationAdmin = bundleContext.getService(serviceReference);
  46
  47             try {
  48                 final Configuration configuration = configurationAdmin.getConfiguration(OFConstants.CONFIG_FILE_ID);
  49
  50                 Optional.ofNullable(configuration.getProperties()).ifPresent(properties -> {
  51                     final Enumeration<String> keys = properties.keys();
  52                     final Map<String, String> mapProperties = new HashMap<>(properties.size());
  53
  54                     while (keys.hasMoreElements()) {
  55                         final String key = keys.nextElement();
  56                         final String value = properties.get(key).toString();
  57                         mapProperties.put(key, value);
  58                     }
  59
  60                     configurationService.update(mapProperties);
  61                 });
  62             } catch (IOException e) {
  63                 LOG.debug("Failed to load {} configuration file", OFConstants.CONFIG_FILE_ID);
  64             }
  65         });
  66     }
  67 }