TUNNEL_ID field support in flow matching and actions

Change-Id: I886123a7c8d57dc4a3e12727ec8a9be4920da79e
diff --git a/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java b/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
index 0347694..91221e2 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/criteria/Criteria.java
@@ -356,6 +356,16 @@
     }
 
     /**
+     * Creates a match on Tunnel ID.
+     *
+     * @param tunnelId Tunnel ID (64 bits)
+     * @return match criterion
+     */
+    public static Criterion matchTunnelId(long tunnelId) {
+        return new TunnelIdCriterion(tunnelId);
+    }
+
+    /**
      * Creates a match on IPv6 Extension Header pseudo-field fiags.
      * Those are defined in Criterion.IPv6ExthdrFlags.
      *
diff --git a/core/api/src/main/java/org/onosproject/net/flow/criteria/TunnelIdCriterion.java b/core/api/src/main/java/org/onosproject/net/flow/criteria/TunnelIdCriterion.java
new file mode 100644
index 0000000..3362c73
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/flow/criteria/TunnelIdCriterion.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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.flow.criteria;
+
+import java.util.Objects;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+/**
+ * Implementation of Tunnel ID criterion.
+ */
+public class TunnelIdCriterion implements Criterion {
+    private final long tunnelId;
+
+    /**
+     * Constructor.
+     *
+     * @param tunnelId a Tunnel ID to match(64 bits)
+     */
+    TunnelIdCriterion(long tunnelId) {
+        this.tunnelId = tunnelId;
+    }
+
+    @Override
+    public Type type() {
+        return Type.TUNNEL_ID;
+    }
+
+    /**
+     * Gets the Tunnel ID to match.
+     *
+     * @return the Tunnel ID to match (64 bits)
+     */
+    public long tunnelId() {
+        return tunnelId;
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(type().toString())
+                .add("tunnelId", Long.toHexString(tunnelId))
+                .toString();
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(type().ordinal(), tunnelId);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof TunnelIdCriterion) {
+            TunnelIdCriterion that = (TunnelIdCriterion) obj;
+            return Objects.equals(tunnelId, that.tunnelId) &&
+                    Objects.equals(this.type(), that.type());
+        }
+        return false;
+    }
+}