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.mdsal.binding.spec.reflect.BindingReflections;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.Route;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.Tables;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.AddressFamily;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.SubsequentAddressFamily;
  26 import org.opendaylight.yangtools.yang.binding.ChildOf;
  27 import org.opendaylight.yangtools.yang.binding.ChoiceIn;
  28 import org.opendaylight.yangtools.yang.binding.DataObject;
  29 import org.opendaylight.yangtools.yang.binding.Identifiable;
  30 import org.opendaylight.yangtools.yang.binding.Identifier;
  31 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  32 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class SimpleRIBExtensionProviderContext implements RIBExtensionProviderContext {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(SimpleRIBExtensionProviderContext.class);
  39
  40     private final ConcurrentMap<TablesKey, RIBSupport<?, ?, ?, ?>> supports = new ConcurrentHashMap<>();
  41     private final ConcurrentMap<NodeIdentifierWithPredicates, RIBSupport<?, ?, ?, ?>> domSupports =
  42             new ConcurrentHashMap<>();
  43
  44     private final ModuleInfoBackedContext classLoadingStrategy = ModuleInfoBackedContext.create();
  45
  46     @Override
  47     public <T extends RIBSupport<?, ?, ?, ?>> RIBSupportRegistration<T> registerRIBSupport(
  48             final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi,
  49             final T support) {
  50         final TablesKey key = new TablesKey(afi, safi);
  51         final RIBSupport<?, ?, ?, ?> prev = this.supports.putIfAbsent(key, support);
  52         Preconditions.checkArgument(prev == null, "AFI %s SAFI %s is already registered with %s",
  53                 afi, safi, prev);
  54         this.domSupports.put(RibSupportUtils.toYangTablesKey(afi, safi), support);
  55         addClassLoadingSupport(afi, safi, support);
  56         return new AbstractRIBSupportRegistration<T>(support) {
  57             @Override
  58             protected void removeRegistration() {
  59                 SimpleRIBExtensionProviderContext.this.supports.remove(key);
  60             }
  61         };
  62     }
  63
  64     private void addClassLoadingSupport(final Class<?> afi, final Class<?> safi, final RIBSupport<?, ?, ?, ?> support) {
  65         final Set<YangModuleInfo> moduleInfos = getModuleInfos(afi, safi, support.routesListClass(),
  66                 support.routesContainerClass(), support.routesCaseClass());
  67         if (!moduleInfos.isEmpty()) {
  68             this.classLoadingStrategy.addModuleInfos(moduleInfos);
  69         }
  70     }
  71
  72     @SuppressWarnings("checkstyle:IllegalCatch")
  73     private static Set<YangModuleInfo> getModuleInfos(final Class<?>... clazzes) {
  74         final Set<YangModuleInfo> moduleInfos = new HashSet<>();
  75         for (final Class<?> clz : clazzes) {
  76             try {
  77                 moduleInfos.add(BindingReflections.getModuleInfo(clz));
  78             } catch (final Exception e) {
  79                 LOG.debug("Could not find module info for class {}", clz, e);
  80             }
  81         }
  82         return moduleInfos;
  83     }
  84
  85     @Override
  86     public <C extends Routes & DataObject & ChoiceIn<Tables>, S extends ChildOf<C>,
  87         R extends Route & ChildOf<S> & Identifiable<I>, I extends Identifier<R>> RIBSupport<C, S, R, I> getRIBSupport(
  88             final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi) {
  89         return getRIBSupport(new TablesKey(afi, safi));
  90     }
  91
  92     @Override
  93     @SuppressWarnings("unchecked")
  94     public <C extends Routes & DataObject & ChoiceIn<Tables>, S extends ChildOf<C>,
  95         R extends Route & ChildOf<S> & Identifiable<I>, I extends Identifier<R>> RIBSupport<C, S, R, I> getRIBSupport(
  96             final TablesKey key) {
  97         return (RIBSupport<C, S, R, I>) this.supports.get(requireNonNull(key));
  98     }
  99
 100     @Override
 101     @SuppressWarnings("unchecked")
 102     public <C extends Routes & DataObject & ChoiceIn<Tables>, S extends ChildOf<C>,
 103         R extends Route & ChildOf<S> & Identifiable<I>, I extends Identifier<R>> RIBSupport<C, S, R, I> getRIBSupport(
 104             final NodeIdentifierWithPredicates key) {
 105         return (RIBSupport<C, S, R, I>) this.domSupports.get(key);
 106     }
 107
 108     @Override
 109     public GeneratedClassLoadingStrategy getClassLoadingStrategy() {
 110         return this.classLoadingStrategy;
 111     }
 112 }