Honeycomb-73 Extensible initializers framework

Change-Id: Ib23453d4040d59a512686315995a5cf9e532cefc
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/infra/translate-api/src/main/java/io/fd/honeycomb/translate/read/Initializer.java b/infra/translate-api/src/main/java/io/fd/honeycomb/translate/read/Initializer.java
new file mode 100644
index 000000000..e26ab55bc
--- /dev/null
+++ b/infra/translate-api/src/main/java/io/fd/honeycomb/translate/read/Initializer.java
@@ -0,0 +1,42 @@
+/*
+ * 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.translate.read;
+
+import com.google.common.annotations.Beta;
+import javax.annotation.Nonnull;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Generic initializer.
+ * <p/>
+ * Capable of invoking 0..n edits as a result of existing operational data.
+ */
+@Beta
+public interface Initializer<O extends DataObject> {
+
+    /**
+     * Transform operational data located under provided (keyed) id.
+     *
+     * @param broker DataBroker that accepts the resulting config data
+     * @param id InstanceIdentifier of the operational data to initialize from
+     * @param ctx Standard read context to assist during initialization e.g. caching data between customizers
+     */
+    void init(@Nonnull DataBroker broker, @Nonnull InstanceIdentifier<O> id, @Nonnull ReadContext ctx)
+            throws InitFailedException;
+}