[Emu] Defining classes for ODU SIGID and SIGTYPE Fields in Flow Criteria and Instruction - Data Model and Tests only

Change-Id: I3a71520caa286a1fcc509c581036ef4848de9b5b
diff --git a/core/api/src/main/java/org/onosproject/net/flow/criteria/OduSignalIdCriterion.java b/core/api/src/main/java/org/onosproject/net/flow/criteria/OduSignalIdCriterion.java
new file mode 100644
index 0000000..cb51339
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/flow/criteria/OduSignalIdCriterion.java
@@ -0,0 +1,82 @@
+/*
+ * 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 static com.google.common.base.MoreObjects.toStringHelper;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.Objects;
+
+import org.onosproject.net.OduSignalId;
+
+/**
+ * Implementation of ODU (Optical channel Data Unit) signal ID signal criterion.
+ * This criterion is based on the specification of "OFPXMT_EXP_ODU_SIGID" in
+ * Open Networking Foundation "Optical Transport Protocol Extension Version 1.0", but
+ * defined in protocol agnostic way.
+ */
+public final class OduSignalIdCriterion implements Criterion {
+
+    private final OduSignalId oduSignalId;
+
+    /**
+     * Create an instance with the specified ODU signal ID.
+     *
+     * @param oduSignalId - ODU signal ID
+     */
+    OduSignalIdCriterion(OduSignalId oduSignalId) {
+        this.oduSignalId = checkNotNull(oduSignalId);
+    }
+
+    @Override
+    public Type type() {
+        return Type.ODU_SIGID;
+    }
+
+    /**
+     * Returns the ODU Signal to match.
+     *
+     * @return the ODU signal to match
+     */
+    public OduSignalId oduSignalId() {
+        return oduSignalId;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(type(), oduSignalId);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof OduSignalIdCriterion)) {
+            return false;
+        }
+        final OduSignalIdCriterion that = (OduSignalIdCriterion) obj;
+        return Objects.equals(this.oduSignalId, that.oduSignalId);
+    }
+
+    @Override
+    public String toString() {
+        return  toStringHelper(type().toString())
+                .add("oduSignalId", oduSignalId)
+                .toString();
+    }
+
+}