tests/honeynode/2.2.1/minimal-distribution-core/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java

   1 /*
   2  * Copyright (c) 2016 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.honeycomb.infra.distro.initializer;
  18
  19 import io.fd.honeycomb.data.init.DataTreeInitializer;
  20 import io.fd.honeycomb.data.init.InitializerRegistry;
  21 import io.fd.honeycomb.translate.MappingContext;
  22 import io.fd.honeycomb.translate.ModificationCache;
  23 import io.fd.honeycomb.translate.read.ReadContext;
  24 import io.fd.honeycomb.translate.read.registry.InitRegistry;
  25
  26 import javax.annotation.Nonnull;
  27
  28 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 final class InitializerRegistryAdapter implements InitializerRegistry {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(InitializerRegistryAdapter.class);
  35
  36     private final DataTreeInitializer configInitializer;
  37     private final DataTreeInitializer contextInitializer;
  38     private final InitRegistry initRegistry;
  39     private final DataBroker dataBroker;
  40     private final MappingContext realtimeMappingContext;
  41
  42     InitializerRegistryAdapter(final DataTreeInitializer configInitializer,
  43                                final DataTreeInitializer contextInitializer,
  44                                final InitRegistry initRegistry,
  45                                final DataBroker noopConfigDataBroker,
  46                                final MappingContext realtimeMappingContext) {
  47         this.configInitializer = configInitializer;
  48         this.contextInitializer = contextInitializer;
  49         this.initRegistry = initRegistry;
  50         this.dataBroker = noopConfigDataBroker;
  51         this.realtimeMappingContext = realtimeMappingContext;
  52     }
  53
  54     @Override
  55     public void initialize() throws DataTreeInitializer.InitializeException {
  56         LOG.info("Config initialization started");
  57         try {
  58             // Initialize contexts first so that other initializers can find any relevant mapping before initializing
  59             // configuration to what is already in VPP
  60             contextInitializer.initialize();
  61             LOG.info("Persisted context restored successfully");
  62             // Initialize all registered initializers
  63             initRegistry.initAll(dataBroker, new InitReadContext(realtimeMappingContext));
  64             LOG.info("Configuration initialized successfully");
  65             // Initialize stored configuration on top
  66             configInitializer.initialize();
  67             LOG.info("Persisted configuration restored successfully");
  68         } catch (Exception e) {
  69             LOG.warn("Failed to initialize config", e);
  70         }
  71
  72         LOG.info("Honeycomb initialized");
  73     }
  74
  75     private static final class InitReadContext implements ReadContext {
  76
  77         private final ModificationCache modificationCache;
  78         private final MappingContext realtimeMappingContext;
  79
  80         InitReadContext(final MappingContext realtimeMappingContext) {
  81             modificationCache = new ModificationCache();
  82             this.realtimeMappingContext = realtimeMappingContext;
  83         }
  84
  85         @Nonnull
  86         @Override
  87         public ModificationCache getModificationCache() {
  88             return modificationCache;
  89         }
  90
  91         @Nonnull
  92         @Override
  93         public MappingContext getMappingContext() {
  94             return realtimeMappingContext;
  95         }
  96
  97         @Override
  98         public void close() {
  99             modificationCache.close();
 100         }
 101     }
 102 }