1 files changed, 69 insertions, 0 deletions
diff --git a/infra/minimal-distribution/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java b/infra/minimal-distribution/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java
new file mode 100644
index 000000000..4d488cfdb
--- /dev/null
+++ b/infra/minimal-distribution/src/main/java/io/fd/honeycomb/infra/distro/initializer/InitializerRegistryAdapter.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.honeycomb.infra.distro.initializer;
+
+import com.google.common.collect.Lists;
+import io.fd.honeycomb.data.init.DataTreeInitializer;
+import io.fd.honeycomb.data.init.InitializerRegistry;
+import io.fd.honeycomb.data.init.InitializerRegistryImpl;
+import java.util.List;
+import java.util.Set;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class InitializerRegistryAdapter implements InitializerRegistry {
+
+    private static final Logger LOG = LoggerFactory.getLogger(InitializerRegistryAdapter.class);
+
+    private final DataTreeInitializer configInitializer;
+    private final DataTreeInitializer contextInitializer;
+    private final List<DataTreeInitializer> pluginInitializers;
+
+    InitializerRegistryAdapter(final DataTreeInitializer configInitializer, final DataTreeInitializer contextInitializer,
+                               final Set<DataTreeInitializer> pluginInitializers) {
+        this.configInitializer = configInitializer;
+        this.contextInitializer = contextInitializer;
+        this.pluginInitializers = Lists.newArrayList(pluginInitializers);
+    }
+
+    @Override
+    public void initialize() throws DataTreeInitializer.InitializeException {
+        LOG.info("Config initialization started");
+
+        final InitializerRegistry initializer = new InitializerRegistryImpl(pluginInitializers);
+
+        try {
+            // Initialize contexts first so that other initializers can find any relevant mapping before initializing
+            // configuration to what is already in VPP
+            contextInitializer.initialize();
+            LOG.info("Persisted context restored successfully");
+            // Initialize all registered initializers
+            initializer.initialize();
+            LOG.info("Configuration initialized successfully");
+            // Initialize stored configuration on top
+            configInitializer.initialize();
+            LOG.info("Persisted configuration restored successfully");
+        } catch (Exception e) {
+            LOG.warn("Failed to initialize config", e);
+        }
+
+        LOG.info("Honeycomb initialized");
+    }
+
+    @Override
+    public void close() throws Exception {}
+}