tests/honeynode/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 import javax.annotation.Nonnull;
  26 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 final class InitializerRegistryAdapter implements InitializerRegistry {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(InitializerRegistryAdapter.class);
  33
  34     private final DataTreeInitializer configInitializer;
  35     private final DataTreeInitializer contextInitializer;
  36     private final InitRegistry initRegistry;
  37     private final DataBroker dataBroker;
  38     private final MappingContext realtimeMappingContext;
  39
  40     InitializerRegistryAdapter(final DataTreeInitializer configInitializer,
  41                                final DataTreeInitializer contextInitializer,
  42                                final InitRegistry initRegistry,
  43                                final DataBroker noopConfigDataBroker,
  44                                final MappingContext realtimeMappingContext) {
  45         this.configInitializer = configInitializer;
  46         this.contextInitializer = contextInitializer;
  47         this.initRegistry = initRegistry;
  48         this.dataBroker = noopConfigDataBroker;
  49         this.realtimeMappingContext = realtimeMappingContext;
  50     }
  51
  52     @Override
  53     public void initialize() throws DataTreeInitializer.InitializeException {
  54         LOG.info("Config initialization started");
  55         try {
  56             // Initialize contexts first so that other initializers can find any relevant mapping before initializing
  57             // configuration to what is already in VPP
  58             contextInitializer.initialize();
  59             LOG.info("Persisted context restored successfully");
  60             // Initialize all registered initializers
  61             initRegistry.initAll(dataBroker, new InitReadContext(realtimeMappingContext));
  62             LOG.info("Configuration initialized successfully");
  63             // Initialize stored configuration on top
  64             configInitializer.initialize();
  65             LOG.info("Persisted configuration restored successfully");
  66         } catch (Exception e) {
  67             LOG.warn("Failed to initialize config", e);
  68         }
  69
  70         LOG.info("Honeycomb initialized");
  71     }
  72
  73     private static final class InitReadContext implements ReadContext {
  74
  75         private final ModificationCache modificationCache;
  76         private final MappingContext realtimeMappingContext;
  77
  78         InitReadContext(final MappingContext realtimeMappingContext) {
  79             modificationCache = new ModificationCache();
  80             this.realtimeMappingContext = realtimeMappingContext;
  81         }
  82
  83         @Nonnull
  84         @Override
  85         public ModificationCache getModificationCache() {
  86             return modificationCache;
  87         }
  88
  89         @Nonnull
  90         @Override
  91         public MappingContext getMappingContext() {
  92             return realtimeMappingContext;
  93         }
  94
  95         @Override
  96         public void close() {
  97             modificationCache.close();
  98         }
  99     }
 100 }