bgp/rib-spi/src/main/java/org/opendaylight/protocol/bgp/rib/spi/SimpleRIBExtensionProviderContext.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.protocol.bgp.rib.spi;
   9
  10 import com.google.common.base.Preconditions;
  11
  12 import java.util.HashSet;
  13 import java.util.Set;
  14 import java.util.concurrent.ConcurrentHashMap;
  15 import java.util.concurrent.ConcurrentMap;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
  19 import org.opendaylight.yangtools.sal.binding.generator.impl.GeneratedClassLoadingStrategy;
  20 import org.opendaylight.yangtools.sal.binding.generator.impl.ModuleInfoBackedContext;
  21 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  22 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
  23 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 public class SimpleRIBExtensionProviderContext implements RIBExtensionProviderContext {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(SimpleRIBExtensionProviderContext.class);
  30
  31     private final ConcurrentMap<TablesKey, RIBSupport> supports = new ConcurrentHashMap<>();
  32     private final ConcurrentMap<NodeIdentifierWithPredicates, RIBSupport> domSupports = new ConcurrentHashMap<>();
  33
  34     private final ModuleInfoBackedContext classLoadingStrategy = ModuleInfoBackedContext.create();
  35
  36     @Override
  37     public <T extends RIBSupport> RIBSupportRegistration<T> registerRIBSupport(final Class<? extends AddressFamily> afi,
  38             final Class<? extends SubsequentAddressFamily> safi, final T support) {
  39         final TablesKey key = new TablesKey(afi, safi);
  40         final RIBSupport prev = this.supports.putIfAbsent(key, support);
  41         Preconditions.checkArgument(prev == null, "AFI %s SAFI %s is already registered with %s", afi, safi, prev);
  42         this.domSupports.put(RibSupportUtils.toYangTablesKey(afi,safi), support);
  43         addClassLoadingSupport(afi, safi, support);
  44         return new AbstractRIBSupportRegistration<T>(support) {
  45             @Override
  46             protected void removeRegistration() {
  47                 SimpleRIBExtensionProviderContext.this.supports.remove(key);
  48             }
  49         };
  50     }
  51
  52     private void addClassLoadingSupport(final Class<?> afi, final Class<?> safi, final RIBSupport s) {
  53         final Set<YangModuleInfo> moduleInfos =
  54                 getModuleInfos(afi, safi, s.routesListClass(), s.routesContainerClass(), s.routesCaseClass());
  55         if(!moduleInfos.isEmpty()) {
  56             classLoadingStrategy.addModuleInfos(moduleInfos);
  57         }
  58     }
  59
  60     private static Set<YangModuleInfo> getModuleInfos(final Class<?>... clazzes) {
  61         final Set<YangModuleInfo> moduleInfos = new HashSet<>();
  62         for(final Class<?> clz : clazzes) {
  63             try {
  64                 moduleInfos.add(BindingReflections.getModuleInfo(clz));
  65             } catch (final Exception e) {
  66                 LOG.debug("Could not find module info for class {}", clz, e);
  67             }
  68         }
  69         return moduleInfos;
  70     }
  71
  72     @Override
  73     public RIBSupport getRIBSupport(final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi) {
  74         return getRIBSupport(new TablesKey(afi, safi));
  75     }
  76
  77     @Override
  78     public RIBSupport getRIBSupport(final TablesKey key) {
  79         return this.supports.get(Preconditions.checkNotNull(key));
  80     }
  81
  82     @Override
  83     public GeneratedClassLoadingStrategy getClassLoadingStrategy() {
  84         return classLoadingStrategy;
  85     }
  86
  87     @Override
  88     public RIBSupport getRIBSupport(final NodeIdentifierWithPredicates key) {
  89         return domSupports.get(key);
  90     }
  91 }