[ONOS-7602]Implement support for P4Data in PI framework and P4Runtime southbound
Change-Id: I9c0c76fb29b8c3aa36f39bde62e825f0f0094253
diff --git a/core/api/src/main/java/org/onosproject/net/pi/model/PiData.java b/core/api/src/main/java/org/onosproject/net/pi/model/PiData.java
new file mode 100644
index 0000000..97d5290
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/pi/model/PiData.java
@@ -0,0 +1,86 @@
+/*
+ * 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.net.pi.model;
+
+import com.google.common.annotations.Beta;
+
+/**
+ * Representation of data that can be used for runtime operations of a protocol-independent pipeline.
+ */
+@Beta
+public interface PiData {
+ /**
+ * Types of data in a protocol-independent pipeline.
+ */
+ enum Type {
+ /**
+ * Bit String.
+ */
+ BITSTRING,
+
+ /**
+ * Bool.
+ */
+ BOOL,
+
+ /**
+ * Tuple.
+ */
+ TUPLE,
+
+ /**
+ * Struct.
+ */
+ STRUCT,
+
+ /**
+ * Header.
+ */
+ HEADER,
+
+ /**
+ * Header Stack.
+ */
+ HEADERSTACK,
+
+ /**
+ * Header Union.
+ */
+ HEADERUNION,
+
+ /**
+ * Header Union Stack.
+ */
+ HEADERUNIONSTACK,
+
+ /**
+ * Enum String.
+ */
+ ENUMSTRING,
+
+ /**
+ * Error String.
+ */
+ ERRORSTRING
+ }
+
+ /**
+ * Returns the type of this protocol-independent data.
+ * @return the type of this instance
+ */
+ Type type();
+}