[ONOS-7732] Automating switch workflow: api, app, and sample workflows
Change-Id: Iee87d4fe6cf61c1f8904d1d77df5f913a712b64a
diff --git a/apps/workflow/api/src/main/java/org/onosproject/workflow/api/HandlerTask.java b/apps/workflow/api/src/main/java/org/onosproject/workflow/api/HandlerTask.java
new file mode 100644
index 0000000..106466b
--- /dev/null
+++ b/apps/workflow/api/src/main/java/org/onosproject/workflow/api/HandlerTask.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2018-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.workflow.api;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Abstract class for handler task.
+ */
+public abstract class HandlerTask {
+
+ /**
+ * Workflow context of handler task.
+ */
+ private final WorkflowContext context;
+
+ /**
+ * Worklet type of handler task.
+ */
+ private final String workletType;
+
+ /**
+ * Constructor for handler task.
+ * @param builder handler task builder
+ */
+ protected HandlerTask(Builder builder) {
+ this.context = builder.context;
+ this.workletType = builder.workletType;
+ }
+
+ /**
+ * Returns workflow context of this handler task.
+ * @return workflow context
+ */
+ public WorkflowContext context() {
+ return context;
+ }
+
+ /**
+ * Returns worklet type name of this handler task.
+ * @return worklet type
+ */
+ public String workletType() {
+ return workletType;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("context", context())
+ .add("workletType", workletType())
+ .toString();
+ }
+
+ /**
+ * Builder of HandlerTask.
+ */
+ public static class Builder {
+ protected WorkflowContext context;
+ protected String workletType;
+
+ /**
+ * Sets workflow context of handler task.
+ * @param context workflow context
+ * @return builder of handler task
+ */
+ public Builder context(WorkflowContext context) {
+ this.context = context;
+ return this;
+ }
+
+ /**
+ * Sets worklet type of handler task.
+ * @param workletType worklet type
+ * @return builder of handler task
+ */
+ public Builder workletType(String workletType) {
+ this.workletType = workletType;
+ return this;
+ }
+ }
+}