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 static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.base.Preconditions;
  13 import java.util.HashSet;
  14 import java.util.Set;
  15 import java.util.concurrent.ConcurrentHashMap;
  16 import java.util.concurrent.ConcurrentMap;
  17 import org.opendaylight.mdsal.binding.generator.impl.GeneratedClassLoadingStrategy;
  18 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
  22 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  23 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
  24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 public class SimpleRIBExtensionProviderContext implements RIBExtensionProviderContext {
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(SimpleRIBExtensionProviderContext.class);
  31
  32     private final ConcurrentMap<TablesKey, RIBSupport> supports = new ConcurrentHashMap<>();
  33     private final ConcurrentMap<NodeIdentifierWithPredicates, RIBSupport> domSupports = new ConcurrentHashMap<>();
  34
  35     private final ModuleInfoBackedContext classLoadingStrategy = ModuleInfoBackedContext.create();
  36
  37     @Override
  38     public <T extends RIBSupport> RIBSupportRegistration<T> registerRIBSupport(final Class<? extends AddressFamily> afi,
  39             final Class<? extends SubsequentAddressFamily> safi, final T support) {
  40         final TablesKey key = new TablesKey(afi, safi);
  41         final RIBSupport prev = this.supports.putIfAbsent(key, support);
  42         Preconditions.checkArgument(prev == null, "AFI %s SAFI %s is already registered with %s", afi, safi, prev);
  43         this.domSupports.put(RibSupportUtils.toYangTablesKey(afi,safi), support);
  44         addClassLoadingSupport(afi, safi, support);
  45         return new AbstractRIBSupportRegistration<T>(support) {
  46             @Override
  47             protected void removeRegistration() {
  48                 SimpleRIBExtensionProviderContext.this.supports.remove(key);
  49             }
  50         };
  51     }
  52
  53     private void addClassLoadingSupport(final Class<?> afi, final Class<?> safi, final RIBSupport s) {
  54         final Set<YangModuleInfo> moduleInfos =
  55                 getModuleInfos(afi, safi, s.routesListClass(), s.routesContainerClass(), s.routesCaseClass());
  56         if(!moduleInfos.isEmpty()) {
  57             this.classLoadingStrategy.addModuleInfos(moduleInfos);
  58         }
  59     }
  60
  61     private static Set<YangModuleInfo> getModuleInfos(final Class<?>... clazzes) {
  62         final Set<YangModuleInfo> moduleInfos = new HashSet<>();
  63         for(final Class<?> clz : clazzes) {
  64             try {
  65                 moduleInfos.add(BindingReflections.getModuleInfo(clz));
  66             } catch (final Exception e) {
  67                 LOG.debug("Could not find module info for class {}", clz, e);
  68             }
  69         }
  70         return moduleInfos;
  71     }
  72
  73     @Override
  74     public RIBSupport getRIBSupport(final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi) {
  75         return getRIBSupport(new TablesKey(afi, safi));
  76     }
  77
  78     @Override
  79     public RIBSupport getRIBSupport(final TablesKey key) {
  80         return this.supports.get(requireNonNull(key));
  81     }
  82
  83     @Override
  84     public GeneratedClassLoadingStrategy getClassLoadingStrategy() {
  85         return this.classLoadingStrategy;
  86     }
  87
  88     @Override
  89     public RIBSupport getRIBSupport(final NodeIdentifierWithPredicates key) {
  90         return this.domSupports.get(key);
  91     }
  92 }