ONOS-7066 ONOS-7067 PI abstractions refactoring and P4Info model parser

Includes changes previously reviewed in #15607, #15877, and #15955.

Change-Id: Ie2ff62e415f2099832ebfe05961a879b7b188fc3
diff --git a/protocols/p4runtime/model/src/main/java/org/onosproject/p4runtime/model/P4InfoParserException.java b/protocols/p4runtime/model/src/main/java/org/onosproject/p4runtime/model/P4InfoParserException.java
new file mode 100644
index 0000000..f01f999
--- /dev/null
+++ b/protocols/p4runtime/model/src/main/java/org/onosproject/p4runtime/model/P4InfoParserException.java
@@ -0,0 +1,42 @@
+/*
+ * 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.p4runtime.model;
+
+/**
+ * Signals an error occurred while parsing a P4Info object.
+ */
+public final class P4InfoParserException extends Exception {
+
+    /**
+     * Creates a new exception for the given message.
+     *
+     * @param message explanation
+     */
+    P4InfoParserException(String message) {
+        super(message);
+    }
+
+    /**
+     * Creates a new exception for the given message and cause.
+     *
+     * @param message message
+     * @param cause cause
+     */
+    P4InfoParserException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}