1 files changed, 102 insertions, 0 deletions
diff --git a/framework/src/onos/web/api/src/main/java/org/onosproject/rest/resources/LinksWebResource.java b/framework/src/onos/web/api/src/main/java/org/onosproject/rest/resources/LinksWebResource.java
new file mode 100644
index 00000000..c6270199
--- /dev/null
+++ b/framework/src/onos/web/api/src/main/java/org/onosproject/rest/resources/LinksWebResource.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2014 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.rest.resources;
+
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Link;
+import org.onosproject.net.link.LinkService;
+import org.onosproject.rest.AbstractWebResource;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Response;
+
+import static org.onosproject.net.DeviceId.deviceId;
+import static org.onosproject.net.PortNumber.portNumber;
+
+/**
+ * Manage inventory of infrastructure links.
+ */
+@Path("links")
+public class LinksWebResource extends AbstractWebResource {
+
+    enum Direction {
+        ALL,
+        INGRESS,
+        EGRESS
+    }
+
+    /**
+     * Get infrastructure links.
+     * Returns array of all links, or links for the specified device or port.
+     *
+     * @param deviceId  (optional) device identifier
+     * @param port      (optional) port number
+     * @param direction (optional) direction qualifier
+     * @return 200 OK
+     */
+    @GET
+    public Response getLinks(@QueryParam("device") String deviceId,
+                             @QueryParam("port") String port,
+                             @QueryParam("direction") String direction) {
+        LinkService service = get(LinkService.class);
+        Iterable<Link> links;
+
+        if (deviceId != null && port != null) {
+            links = getConnectPointLinks(new ConnectPoint(deviceId(deviceId),
+                                                          portNumber(port)),
+                                         direction, service);
+        } else if (deviceId != null) {
+            links = getDeviceLinks(deviceId(deviceId), direction, service);
+        } else {
+            links = service.getLinks();
+        }
+        return ok(encodeArray(Link.class, "links", links)).build();
+    }
+
+    private Iterable<Link> getConnectPointLinks(ConnectPoint point,
+                                                String direction,
+                                                LinkService service) {
+        Direction dir = direction != null ?
+                Direction.valueOf(direction.toUpperCase()) : Direction.ALL;
+        switch (dir) {
+            case INGRESS:
+                return service.getIngressLinks(point);
+            case EGRESS:
+                return service.getEgressLinks(point);
+            default:
+                return service.getLinks(point);
+        }
+    }
+
+    private Iterable<Link> getDeviceLinks(DeviceId deviceId,
+                                          String direction,
+                                          LinkService service) {
+        Direction dir = direction != null ?
+                Direction.valueOf(direction.toUpperCase()) : Direction.ALL;
+        switch (dir) {
+            case INGRESS:
+                return service.getDeviceIngressLinks(deviceId);
+            case EGRESS:
+                return service.getDeviceEgressLinks(deviceId);
+            default:
+                return service.getDeviceLinks(deviceId);
+        }
+    }
+
+}