opendaylight/netconf/config-persister-impl/src/main/java/org/opendaylight/controller/netconf/persist/impl/osgi/ConfigPersisterActivator.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, 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
   9 package org.opendaylight.controller.netconf.persist.impl.osgi;
  10
  11 import com.google.common.annotations.VisibleForTesting;
  12 import org.opendaylight.controller.config.persist.api.ConfigSnapshotHolder;
  13 import org.opendaylight.controller.netconf.mapping.api.NetconfOperationServiceFactory;
  14 import org.opendaylight.controller.netconf.persist.impl.ConfigPersisterNotificationHandler;
  15 import org.opendaylight.controller.netconf.persist.impl.ConfigPusher;
  16 import org.opendaylight.controller.netconf.persist.impl.PersisterAggregator;
  17 import org.osgi.framework.BundleActivator;
  18 import org.osgi.framework.BundleContext;
  19 import org.osgi.framework.Constants;
  20 import org.osgi.framework.Filter;
  21 import org.osgi.framework.ServiceReference;
  22 import org.osgi.util.tracker.ServiceTracker;
  23 import org.osgi.util.tracker.ServiceTrackerCustomizer;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 import javax.management.MBeanServer;
  28 import java.lang.management.ManagementFactory;
  29 import java.util.ArrayList;
  30 import java.util.List;
  31 import java.util.concurrent.TimeUnit;
  32
  33 public class ConfigPersisterActivator implements BundleActivator {
  34
  35     private static final Logger logger = LoggerFactory.getLogger(ConfigPersisterActivator.class);
  36
  37     public static final String MAX_WAIT_FOR_CAPABILITIES_MILLIS_PROPERTY = "maxWaitForCapabilitiesMillis";
  38     private static final long MAX_WAIT_FOR_CAPABILITIES_MILLIS_DEFAULT = TimeUnit.MINUTES.toMillis(2);
  39     public static final String CONFLICTING_VERSION_TIMEOUT_MILLIS_PROPERTY = "conflictingVersionTimeoutMillis";
  40     private static final long CONFLICTING_VERSION_TIMEOUT_MILLIS_DEFAULT = TimeUnit.SECONDS.toMillis(30);
  41
  42     public static final String NETCONF_CONFIG_PERSISTER = "netconf.config.persister";
  43
  44     public static final String STORAGE_ADAPTER_CLASS_PROP_SUFFIX = "storageAdapterClass";
  45
  46
  47     private static final MBeanServer platformMBeanServer = ManagementFactory.getPlatformMBeanServer();
  48
  49     private List<AutoCloseable> autoCloseables;
  50
  51
  52     @Override
  53     public void start(final BundleContext context) throws Exception {
  54         logger.debug("ConfigPersister starting");
  55         autoCloseables = new ArrayList<>();
  56         PropertiesProviderBaseImpl propertiesProvider = new PropertiesProviderBaseImpl(context);
  57
  58
  59         final PersisterAggregator persisterAggregator = PersisterAggregator.createFromProperties(propertiesProvider);
  60         autoCloseables.add(persisterAggregator);
  61         final long maxWaitForCapabilitiesMillis = getMaxWaitForCapabilitiesMillis(propertiesProvider);
  62         final List<ConfigSnapshotHolder> configs = persisterAggregator.loadLastConfigs();
  63         final long conflictingVersionTimeoutMillis = getConflictingVersionTimeoutMillis(propertiesProvider);
  64         logger.trace("Following configs will be pushed: {}", configs);
  65         ServiceTrackerCustomizer<NetconfOperationServiceFactory, NetconfOperationServiceFactory> configNetconfCustomizer = new ServiceTrackerCustomizer<NetconfOperationServiceFactory, NetconfOperationServiceFactory>() {
  66             @Override
  67             public NetconfOperationServiceFactory addingService(ServiceReference<NetconfOperationServiceFactory> reference) {
  68                 NetconfOperationServiceFactory service = reference.getBundle().getBundleContext().getService(reference);
  69                 final ConfigPusher configPusher = new ConfigPusher(service, maxWaitForCapabilitiesMillis, conflictingVersionTimeoutMillis);
  70                 logger.debug("Configuration Persister got %s", service);
  71                 final Thread pushingThread = new Thread(new Runnable() {
  72                     @Override
  73                     public void run() {
  74                         configPusher.pushConfigs(configs);
  75                         logger.info("Configuration Persister initialization completed.");
  76                         ConfigPersisterNotificationHandler jmxNotificationHandler = new ConfigPersisterNotificationHandler(platformMBeanServer, persisterAggregator);
  77                         synchronized (ConfigPersisterActivator.this) {
  78                             autoCloseables.add(jmxNotificationHandler);
  79                         }
  80                     }
  81                 }, "config-pusher");
  82                 synchronized (ConfigPersisterActivator.this){
  83                     autoCloseables.add(new AutoCloseable() {
  84                         @Override
  85                         public void close() throws Exception {
  86                             pushingThread.interrupt();
  87                         }
  88                     });
  89                 }
  90                 pushingThread.start();
  91                 return service;
  92             }
  93
  94             @Override
  95             public void modifiedService(ServiceReference<NetconfOperationServiceFactory> reference, NetconfOperationServiceFactory service) {
  96             }
  97
  98             @Override
  99             public void removedService(ServiceReference<NetconfOperationServiceFactory> reference, NetconfOperationServiceFactory service) {
 100             }
 101         };
 102
 103         Filter filter = context.createFilter(getFilterString());
 104
 105         ServiceTracker<NetconfOperationServiceFactory, NetconfOperationServiceFactory> tracker =
 106                 new ServiceTracker<>(context, filter, configNetconfCustomizer);
 107         tracker.open();
 108     }
 109
 110
 111     @VisibleForTesting
 112     public static String getFilterString() {
 113         return "(&" +
 114                 "(" + Constants.OBJECTCLASS + "=" + NetconfOperationServiceFactory.class.getName() + ")" +
 115                 "(name" + "=" + "config-netconf-connector" + ")" +
 116                 ")";
 117     }
 118
 119     private long getConflictingVersionTimeoutMillis(PropertiesProviderBaseImpl propertiesProvider) {
 120         String timeoutProperty = propertiesProvider.getProperty(CONFLICTING_VERSION_TIMEOUT_MILLIS_PROPERTY);
 121         return timeoutProperty == null ? CONFLICTING_VERSION_TIMEOUT_MILLIS_DEFAULT : Long.valueOf(timeoutProperty);
 122     }
 123
 124     private long getMaxWaitForCapabilitiesMillis(PropertiesProviderBaseImpl propertiesProvider) {
 125         String timeoutProperty = propertiesProvider.getProperty(MAX_WAIT_FOR_CAPABILITIES_MILLIS_PROPERTY);
 126         return timeoutProperty == null ? MAX_WAIT_FOR_CAPABILITIES_MILLIS_DEFAULT : Long.valueOf(timeoutProperty);
 127     }
 128
 129     @Override
 130     public synchronized void stop(BundleContext context) throws Exception {
 131         Exception lastException = null;
 132         for (AutoCloseable autoCloseable : autoCloseables) {
 133             try {
 134                 autoCloseable.close();
 135             } catch (Exception e) {
 136                 if (lastException == null) {
 137                     lastException = e;
 138                 } else {
 139                     lastException.addSuppressed(e);
 140                 }
 141             }
 142         }
 143         if (lastException != null) {
 144             throw lastException;
 145         }
 146     }
 147 }