Intent domain for multiple domains (incubation)

Added new fields to IntentResource.

Note: The multi-domain work will be reverted after this commit
for simiplicity in Emu.

Change-Id: Ia642ba14e138b15dd6c8a1c74eb34fa8293931aa
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainIntentResource.java b/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainIntentResource.java
new file mode 100644
index 0000000..ea1660e
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainIntentResource.java
@@ -0,0 +1,84 @@
+/*
+ * 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.incubator.net.domain;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.incubator.net.tunnel.DomainTunnelId;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.Path;
+
+/**
+ * A variant of intent resource specialized for use on the intra-domain level.  It contains a lower level path.
+ */
+public class DomainIntentResource extends IntentResource {
+
+    private final Path domainPath;
+
+    private final DomainTunnelId domainTunnelId;
+
+    private final IntentDomainId intentDomainId;
+
+    /**
+     * Constructor for a domain intent resource.
+     *
+     * @param primitive      the primitive associated with this resource
+     * @param domainTunnelId the id of this tunnel (used as a sorting mechanism)
+     * @param domainId       the ID of the intent domain containing this tunnel
+     * @param appId          the id of the application which created this tunnel
+     * @param ingress        the fist connect point associated with this tunnel (order is irrelevant as long as it is
+     *                       consistent with the path)
+     * @param egress         the second connect point associated with this tunnel (order is irrelevant as long as it is
+     *                       consistent with the path)
+     * @param path           the path followed through the domain
+     */
+    public DomainIntentResource(IntentPrimitive primitive, DomainTunnelId domainTunnelId, IntentDomainId domainId,
+                                ApplicationId appId, ConnectPoint ingress, ConnectPoint egress, Path path) {
+        super(primitive, appId, ingress, egress);
+
+        this.domainPath = path;
+        this.domainTunnelId = domainTunnelId;
+        this.intentDomainId = domainId;
+    }
+
+    /**
+     * Returns the domain path associated with this resource at creation.
+     *
+     * @return this resource's domain level path or if this resource backs a network tunnel then null.
+     */
+    public Path path() {
+        return domainPath;
+    }
+
+    /**
+     * Returns the tunnel ID associated with this domain at creation.
+     *
+     * @return this resource's tunnel ID.
+     */
+    public DomainTunnelId tunnelId() {
+        return domainTunnelId;
+    }
+
+    /**
+     * Returns the domain ID associated with this resource at creation.
+     *
+     * @return this resource's domain ID.
+     */
+    public IntentDomainId domainId() {
+        return intentDomainId;
+    }
+
+}