encapsulation constraint related to ONOS-3445
Change-Id: I5f7d912e34c343703108e0cb95c4ea94290663a8
diff --git a/core/api/src/main/java/org/onosproject/net/EncapsulationType.java b/core/api/src/main/java/org/onosproject/net/EncapsulationType.java
new file mode 100644
index 0000000..63ff46d
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/EncapsulationType.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2014-2015 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;
+
+public enum EncapsulationType {
+ /**
+ * Indicates an MPLS encapsulation.
+ */
+ MPLS,
+ /**
+ * Indicates a VLAN encapsulation.
+ */
+ VLAN,
+};
+
+
diff --git a/core/api/src/main/java/org/onosproject/net/intent/constraint/EncapsulationConstraint.java b/core/api/src/main/java/org/onosproject/net/intent/constraint/EncapsulationConstraint.java
new file mode 100644
index 0000000..e853939
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/intent/constraint/EncapsulationConstraint.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2014-2015 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.intent.constraint;
+
+
+import org.onosproject.net.EncapsulationType;
+import org.onosproject.net.Link;
+import org.onosproject.net.resource.link.LinkResourceService;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Encapsulation to manage core transportation.
+ */
+public class EncapsulationConstraint extends BooleanConstraint {
+
+ private EncapsulationType encapType;
+
+ /**
+ * Creates a new encapsulation constraint.
+ *
+ * @param encapType the encapsulation type {@link EncapsulationType}
+ */
+ public EncapsulationConstraint(EncapsulationType encapType) {
+ checkNotNull(encapType, "EncapsulationType cannot be null");
+ this.encapType = encapType;
+ }
+
+
+ @Override
+ public boolean isValid(Link link, LinkResourceService resourceService) {
+ //TODO: validate the availability of the resources for each link in the path.
+ //e.g., availability of MPLSlabels, VLANID
+
+ return true;
+ }
+
+ /**
+ * Returns the encapsulation type required by this constraint.
+ *
+ * @return encapType
+ */
+ public EncapsulationType encapType() {
+ return encapType;
+ }
+
+ @Override
+ public int hashCode() {
+ return encapType.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null || getClass() != obj.getClass()) {
+ return false;
+ }
+ final EncapsulationConstraint other = (EncapsulationConstraint) obj;
+ return this.encapType() == other.encapType();
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(this).add("encapType", encapType).toString();
+ }
+}