Initial support for multi kubernetes clusters for k8s nodes
Change-Id: I6ca132898f8e157e0583de38a637fdc135f21d6f
(cherry picked from commit e2a04cedde73618ef24575e70cb221e03854de1d)
diff --git a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/K8sHostState.java b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/K8sHostState.java
new file mode 100644
index 0000000..f9a07c3
--- /dev/null
+++ b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/K8sHostState.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2020-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.k8snode.api;
+
+/**
+ * Defines the initialization state of Kubernetes host.
+ */
+public enum K8sHostState {
+
+ /**
+ * Indicates the host is newly added.
+ */
+ INIT {
+ @Override
+ public void process(K8sHostHandler handler, K8sHost host) {
+ handler.processInitState(host);
+ }
+
+ @Override
+ public K8sHostState nextState() {
+ return COMPLETE;
+ }
+ },
+ /**
+ * Indicates the host initialization is done.
+ */
+ COMPLETE {
+ @Override
+ public void process(K8sHostHandler handler, K8sHost host) {
+ handler.processCompleteState(host);
+ }
+
+ @Override
+ public K8sHostState nextState() {
+ return COMPLETE;
+ }
+ },
+ /**
+ * Indicates host is broken.
+ */
+ INCOMPLETE {
+ @Override
+ public void process(K8sHostHandler handler, K8sHost host) {
+ handler.processIncompleteState(host);
+ }
+
+ @Override
+ public K8sHostState nextState() {
+ return INIT;
+ }
+ };
+
+ /**
+ * Processes the given host which is under a certain state.
+ *
+ * @param handler kubernetes host handler
+ * @param host kubernetes host
+ */
+ public abstract void process(K8sHostHandler handler, K8sHost host);
+
+ /**
+ * Transits to the next state.
+ *
+ * @return the next kubernetes host state
+ */
+ public abstract K8sHostState nextState();
+}