ONOS-7050 Refactored PI translation service and store
The translation store is now able to maintain mappings between
translated entities and specific instances of a PI entry in the network
(i.e. applied to a device).
The translation service has been refactored to allow users to
learn and forget translated entities.
The refactoring of the P4Runtime driver using this service will be
submitted separatelly.
Change-Id: Iaafd87d90232514853ca0dea0115dbae4f6e7886
diff --git a/core/net/src/main/java/org/onosproject/net/pi/impl/AbstractPiTranslatorImpl.java b/core/net/src/main/java/org/onosproject/net/pi/impl/AbstractPiTranslatorImpl.java
new file mode 100644
index 0000000..5d7178c
--- /dev/null
+++ b/core/net/src/main/java/org/onosproject/net/pi/impl/AbstractPiTranslatorImpl.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * 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 org.onosproject.net.pi.impl;
+
+import org.onosproject.net.pi.runtime.PiEntity;
+import org.onosproject.net.pi.runtime.PiHandle;
+import org.onosproject.net.pi.service.PiTranslatable;
+import org.onosproject.net.pi.service.PiTranslatedEntity;
+import org.onosproject.net.pi.service.PiTranslationStore;
+import org.onosproject.net.pi.service.PiTranslator;
+
+import java.util.Optional;
+
+/**
+ * Abstract implementation of a PI translator backed by a PI translation store.
+ *
+ * @param <T> PD entity class
+ * @param <E> PI entity class
+ */
+public abstract class AbstractPiTranslatorImpl
+ <T extends PiTranslatable, E extends PiEntity>
+ implements PiTranslator<T, E> {
+
+ private final PiTranslationStore<T, E> store;
+
+ AbstractPiTranslatorImpl(PiTranslationStore<T, E> store) {
+ this.store = store;
+ }
+
+ @Override
+ public void learn(PiHandle<E> handle, PiTranslatedEntity<T, E> entity) {
+ store.addOrUpdate(handle, entity);
+ }
+
+ @Override
+ public Optional<PiTranslatedEntity<T, E>> lookup(PiHandle<E> handle) {
+ return Optional.ofNullable(store.get(handle));
+ }
+
+ @Override
+ public void forget(PiHandle<E> handle) {
+ store.remove(handle);
+ }
+}