opendaylight/netconf/netconf-monitoring/src/main/java/org/opendaylight/controller/netconf/monitoring/osgi/NetconfMonitoringActivator.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 package org.opendaylight.controller.netconf.monitoring.osgi;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.collect.Sets;
  12 import java.util.ArrayList;
  13 import java.util.Collection;
  14 import java.util.Collections;
  15 import java.util.List;
  16 import java.util.Set;
  17 import org.opendaylight.controller.netconf.api.Capability;
  18 import org.opendaylight.controller.netconf.api.monitoring.CapabilityListener;
  19 import org.opendaylight.controller.netconf.mapping.api.NetconfOperationService;
  20 import org.opendaylight.controller.netconf.mapping.api.NetconfOperationServiceFactory;
  21 import org.opendaylight.controller.netconf.monitoring.MonitoringConstants;
  22 import org.osgi.framework.BundleActivator;
  23 import org.osgi.framework.BundleContext;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 public class NetconfMonitoringActivator implements BundleActivator {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(NetconfMonitoringActivator.class);
  30
  31     private NetconfMonitoringServiceTracker monitor;
  32
  33     @Override
  34     public void start(final BundleContext context)  {
  35         monitor = new NetconfMonitoringServiceTracker(context);
  36         monitor.open();
  37     }
  38
  39     @Override
  40     public void stop(final BundleContext context) {
  41         if(monitor!=null) {
  42             try {
  43                 monitor.close();
  44             } catch (final Exception e) {
  45                 LOG.warn("Ignoring exception while closing {}", monitor, e);
  46             }
  47         }
  48     }
  49
  50     public static class NetconfMonitoringOperationServiceFactory implements NetconfOperationServiceFactory, AutoCloseable {
  51
  52         private final NetconfMonitoringOperationService operationService;
  53
  54         private static final Set<Capability> CAPABILITIES = Sets.<Capability>newHashSet(new Capability() {
  55
  56             @Override
  57             public String getCapabilityUri() {
  58                 return MonitoringConstants.URI;
  59             }
  60
  61             @Override
  62             public Optional<String> getModuleNamespace() {
  63                 return Optional.of(MonitoringConstants.NAMESPACE);
  64             }
  65
  66             @Override
  67             public Optional<String> getModuleName() {
  68                 return Optional.of(MonitoringConstants.MODULE_NAME);
  69             }
  70
  71             @Override
  72             public Optional<String> getRevision() {
  73                 return Optional.of(MonitoringConstants.MODULE_REVISION);
  74             }
  75
  76             @Override
  77             public Optional<String> getCapabilitySchema() {
  78                 return Optional.absent();
  79             }
  80
  81             @Override
  82             public Collection<String> getLocation() {
  83                 return Collections.emptyList();
  84             }
  85         });
  86
  87         private static final AutoCloseable AUTO_CLOSEABLE = new AutoCloseable() {
  88             @Override
  89             public void close() throws Exception {
  90                 // NOOP
  91             }
  92         };
  93
  94         private final List<CapabilityListener> listeners = new ArrayList<>();
  95
  96         public NetconfMonitoringOperationServiceFactory(final NetconfMonitoringOperationService operationService) {
  97             this.operationService = operationService;
  98         }
  99
 100         @Override
 101         public NetconfOperationService createService(final String netconfSessionIdForReporting) {
 102             return operationService;
 103         }
 104
 105         @Override
 106         public Set<Capability> getCapabilities() {
 107             return CAPABILITIES;
 108         }
 109
 110         @Override
 111         public AutoCloseable registerCapabilityListener(final CapabilityListener listener) {
 112             listener.onCapabilitiesAdded(getCapabilities());
 113             listeners.add(listener);
 114             return AUTO_CLOSEABLE;
 115         }
 116
 117         @Override
 118         public void close() {
 119             for (final CapabilityListener listener : listeners) {
 120                 listener.onCapabilitiesRemoved(getCapabilities());
 121             }
 122         }
 123     }
 124 }