Add a Multiple source to single destination intent
This is a very simplistic implementation of an intent that
represents multiple sources with a single destination.
The implementaiton is simple, it just computes the union
of the set of path segments needed to satisfy all the connections
and installs them.
The unit test is just a skeleton with a single test case and
needs to be expanded.
diff --git a/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java b/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java
new file mode 100644
index 0000000..78c95cf
--- /dev/null
+++ b/core/api/src/main/java/org/onlab/onos/net/intent/LinkCollectionIntent.java
@@ -0,0 +1,84 @@
+package org.onlab.onos.net.intent;
+
+import java.util.Collection;
+import java.util.Objects;
+import java.util.Set;
+
+import org.onlab.onos.net.Link;
+import org.onlab.onos.net.flow.TrafficSelector;
+import org.onlab.onos.net.flow.TrafficTreatment;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Abstraction of a connectivity intent that is implemented by a set of path
+ * segments.
+ */
+public class LinkCollectionIntent extends ConnectivityIntent implements InstallableIntent {
+
+ private final Set<Link> links;
+
+ /**
+ * Creates a new point-to-point intent with the supplied ingress/egress
+ * ports and using the specified explicit path.
+ *
+ * @param id intent identifier
+ * @param selector traffic match
+ * @param treatment action
+ * @param links traversed links
+ * @throws NullPointerException {@code path} is null
+ */
+ public LinkCollectionIntent(IntentId id,
+ TrafficSelector selector,
+ TrafficTreatment treatment,
+ Set<Link> links) {
+ super(id, selector, treatment);
+ this.links = links;
+ }
+
+ protected LinkCollectionIntent() {
+ super();
+ this.links = null;
+ }
+
+ @Override
+ public Collection<Link> requiredLinks() {
+ return links;
+ }
+
+ public Set<Link> links() {
+ return links;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) {
+ return true;
+ }
+ if (o == null || getClass() != o.getClass()) {
+ return false;
+ }
+ if (!super.equals(o)) {
+ return false;
+ }
+
+ LinkCollectionIntent that = (LinkCollectionIntent) o;
+
+ return Objects.equals(this.links, that.links);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(super.hashCode(), links);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("id", id())
+ .add("match", selector())
+ .add("action", treatment())
+ .add("links", links())
+ .toString();
+ }
+}