[ONOS-3405] Change EthType Json encoding to Hex and extend decoding with Hex support alongside int

Change-Id: I629f52016256d6c5cc258ab9e1c5a7b916991d5b
diff --git a/core/common/src/test/java/org/onosproject/codec/impl/CriterionJsonMatcher.java b/core/common/src/test/java/org/onosproject/codec/impl/CriterionJsonMatcher.java
index b00632c..7d8580a 100644
--- a/core/common/src/test/java/org/onosproject/codec/impl/CriterionJsonMatcher.java
+++ b/core/common/src/test/java/org/onosproject/codec/impl/CriterionJsonMatcher.java
@@ -138,8 +138,8 @@
      * @return true if the JSON matches the criterion, false otherwise.
      */
     private boolean matchCriterion(EthTypeCriterion criterion) {
-        final int ethType = criterion.ethType().toShort();
-        final int jsonEthType = jsonCriterion.get("ethType").intValue();
+        final int ethType = criterion.ethType().toShort() & 0xffff;
+        final int jsonEthType = Integer.decode(jsonCriterion.get("ethType").textValue()) & 0xffff;
         if (ethType != jsonEthType) {
             description.appendText("ethType was "
                     + Integer.toString(jsonEthType));
diff --git a/core/common/src/test/resources/org/onosproject/codec/impl/criteria-flow.json b/core/common/src/test/resources/org/onosproject/codec/impl/criteria-flow.json
index ccb2e16..82c0f59 100644
--- a/core/common/src/test/resources/org/onosproject/codec/impl/criteria-flow.json
+++ b/core/common/src/test/resources/org/onosproject/codec/impl/criteria-flow.json
@@ -9,7 +9,7 @@
             {"type":"IN_PORT", "port":23},
             {"type":"IN_PHY_PORT", "port":44},
             {"type":"METADATA", "metadata":123456},
-            {"type":"ETH_TYPE","ethType":2054},
+            {"type":"ETH_TYPE","ethType":"0x806"},
             {"type":"ETH_SRC","mac":"00:11:22:33:44:55"},
             {"type":"ETH_DST","mac":"00:11:22:33:44:55"},
             {"type":"VLAN_VID","vlanId":777},
diff --git a/core/common/src/test/resources/org/onosproject/codec/impl/instructions-flow.json b/core/common/src/test/resources/org/onosproject/codec/impl/instructions-flow.json
index 74b9546..2a184b3 100644
--- a/core/common/src/test/resources/org/onosproject/codec/impl/instructions-flow.json
+++ b/core/common/src/test/resources/org/onosproject/codec/impl/instructions-flow.json
@@ -35,5 +35,5 @@
       ],
       "deferred":[]
   },
-  "selector": {"criteria":[{"type":"ETH_TYPE","ethType":2054}]}
+  "selector": {"criteria":[{"type":"ETH_TYPE","ethType":"0x806"}]}
 }