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

   1 /*
   2  * Copyright (c) 2015 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.config.persist.impl.osgi;
  10
  11 import com.google.common.collect.Lists;
  12 import java.lang.management.ManagementFactory;
  13 import java.util.List;
  14 import java.util.concurrent.TimeUnit;
  15 import javax.management.MBeanServer;
  16 import org.opendaylight.controller.config.facade.xml.ConfigSubsystemFacadeFactory;
  17 import org.opendaylight.controller.config.persist.api.ConfigPusher;
  18 import org.opendaylight.controller.config.persist.api.ConfigSnapshotHolder;
  19 import org.opendaylight.controller.config.persist.api.Persister;
  20 import org.opendaylight.controller.config.persist.impl.ConfigPusherImpl;
  21 import org.opendaylight.controller.config.persist.impl.PersisterAggregator;
  22 import org.opendaylight.controller.config.util.CloseableUtil;
  23 import org.osgi.framework.BundleActivator;
  24 import org.osgi.framework.BundleContext;
  25 import org.osgi.framework.ServiceReference;
  26 import org.osgi.framework.ServiceRegistration;
  27 import org.osgi.util.tracker.ServiceTracker;
  28 import org.osgi.util.tracker.ServiceTrackerCustomizer;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class ConfigPersisterActivator implements BundleActivator {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(ConfigPersisterActivator.class);
  35     private static final MBeanServer platformMBeanServer = ManagementFactory.getPlatformMBeanServer();
  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.MINUTES.toMillis(1);
  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     private final List<AutoCloseable> autoCloseables = Lists.newArrayList();
  47     private volatile BundleContext context;
  48
  49     ServiceRegistration<?> registration;
  50
  51     @Override
  52     public void start(final BundleContext context) throws Exception {
  53         LOG.debug("ConfigPersister starting");
  54         this.context = context;
  55
  56         PropertiesProviderBaseImpl propertiesProvider = new PropertiesProviderBaseImpl(context);
  57
  58         final PersisterAggregator persisterAggregator = PersisterAggregator.createFromProperties(propertiesProvider);
  59         autoCloseables.add(persisterAggregator);
  60         final long maxWaitForCapabilitiesMillis = getMaxWaitForCapabilitiesMillis(propertiesProvider);
  61         final List<ConfigSnapshotHolder> configs = persisterAggregator.loadLastConfigs();
  62         final long conflictingVersionTimeoutMillis = getConflictingVersionTimeoutMillis(propertiesProvider);
  63         LOG.debug("Following configs will be pushed: {}", configs);
  64
  65         ServiceTrackerCustomizer<ConfigSubsystemFacadeFactory, ConfigSubsystemFacadeFactory> schemaServiceTrackerCustomizer = new ServiceTrackerCustomizer<ConfigSubsystemFacadeFactory, ConfigSubsystemFacadeFactory>() {
  66
  67             @Override
  68             public ConfigSubsystemFacadeFactory addingService(ServiceReference<ConfigSubsystemFacadeFactory> reference) {
  69                 LOG.debug("Got addingService(SchemaContextProvider) event");
  70                 // Yang store service should not be registered multiple times
  71                 ConfigSubsystemFacadeFactory ConfigSubsystemFacadeFactory = reference.getBundle().getBundleContext().getService(reference);
  72                 startPusherThread(configs, maxWaitForCapabilitiesMillis, ConfigSubsystemFacadeFactory, conflictingVersionTimeoutMillis, persisterAggregator);
  73                 return ConfigSubsystemFacadeFactory;
  74             }
  75
  76             @Override
  77             public void modifiedService(ServiceReference<ConfigSubsystemFacadeFactory> reference, ConfigSubsystemFacadeFactory service) {
  78                 LOG.warn("Config manager facade was modified unexpectedly");
  79             }
  80
  81             @Override
  82             public void removedService(ServiceReference<ConfigSubsystemFacadeFactory> reference, ConfigSubsystemFacadeFactory service) {
  83                 LOG.warn("Config manager facade was removed unexpectedly");
  84             }
  85         };
  86
  87         ServiceTracker<ConfigSubsystemFacadeFactory, ConfigSubsystemFacadeFactory> schemaContextProviderServiceTracker =
  88                 new ServiceTracker<>(context, ConfigSubsystemFacadeFactory.class, schemaServiceTrackerCustomizer);
  89         schemaContextProviderServiceTracker.open();
  90     }
  91
  92     private long getConflictingVersionTimeoutMillis(PropertiesProviderBaseImpl propertiesProvider) {
  93         String timeoutProperty = propertiesProvider.getProperty(CONFLICTING_VERSION_TIMEOUT_MILLIS_PROPERTY);
  94         return timeoutProperty == null ? CONFLICTING_VERSION_TIMEOUT_MILLIS_DEFAULT : Long.valueOf(timeoutProperty);
  95     }
  96
  97     private long getMaxWaitForCapabilitiesMillis(PropertiesProviderBaseImpl propertiesProvider) {
  98         String timeoutProperty = propertiesProvider.getProperty(MAX_WAIT_FOR_CAPABILITIES_MILLIS_PROPERTY);
  99         return timeoutProperty == null ? MAX_WAIT_FOR_CAPABILITIES_MILLIS_DEFAULT : Long.valueOf(timeoutProperty);
 100     }
 101
 102     @Override
 103     public void stop(BundleContext context) throws Exception {
 104         synchronized(autoCloseables) {
 105             CloseableUtil.closeAll(autoCloseables);
 106             autoCloseables.clear();
 107             if (registration != null) {
 108                 registration.unregister();
 109             }
 110             this.context = null;
 111         }
 112     }
 113
 114     private void startPusherThread(final List<? extends ConfigSnapshotHolder> configs, final long maxWaitForCapabilitiesMillis,
 115                            final ConfigSubsystemFacadeFactory service, final long conflictingVersionTimeoutMillis, final Persister persisterAggregator){
 116         LOG.debug("Creating new job queue");
 117         final ConfigPusherImpl configPusher = new ConfigPusherImpl(service,
 118                 maxWaitForCapabilitiesMillis, conflictingVersionTimeoutMillis);
 119         LOG.debug("Configuration Persister got {}", service);
 120         LOG.debug("Context was {}", context);
 121         LOG.debug("Registration was {}", registration);
 122         final Thread pushingThread = new Thread(new Runnable() {
 123                 @Override
 124                 public void run() {
 125                     try {
 126                         if(configs != null && !configs.isEmpty()) {
 127                             configPusher.pushConfigs(configs);
 128                         }
 129                         if(context != null) {
 130                             registration = context.registerService(ConfigPusher.class.getName(), configPusher, null);
 131                             configPusher.process(autoCloseables, platformMBeanServer, persisterAggregator, false);
 132                         } else {
 133                             LOG.warn("Unable to process configs as BundleContext is null");
 134                         }
 135                     } catch (InterruptedException e) {
 136                         LOG.info("ConfigPusher thread stopped");
 137                     }
 138                     LOG.info("Configuration Persister initialization completed.");
 139                 }
 140             }, "config-pusher");
 141         synchronized (autoCloseables) {
 142             autoCloseables.add(new AutoCloseable() {
 143                 @Override
 144                 public void close() {
 145                     pushingThread.interrupt();
 146                 }
 147             });
 148         }
 149         pushingThread.setDaemon(true);
 150         pushingThread.start();
 151     }
 152 }
 153