diff options
Diffstat (limited to 'framework/src/onos/core/api/src/main/java/org/onosproject/net/topology/GeoDistanceLinkWeight.java')
-rw-r--r-- | framework/src/onos/core/api/src/main/java/org/onosproject/net/topology/GeoDistanceLinkWeight.java | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/net/topology/GeoDistanceLinkWeight.java b/framework/src/onos/core/api/src/main/java/org/onosproject/net/topology/GeoDistanceLinkWeight.java deleted file mode 100644 index c966902e..00000000 --- a/framework/src/onos/core/api/src/main/java/org/onosproject/net/topology/GeoDistanceLinkWeight.java +++ /dev/null @@ -1,72 +0,0 @@ -/* - * 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.topology; - -import org.onlab.util.GeoLocation; -import org.onosproject.net.AnnotationKeys; -import org.onosproject.net.Annotations; -import org.onosproject.net.Device; -import org.onosproject.net.DeviceId; -import org.onosproject.net.device.DeviceService; - -import static java.lang.Double.MAX_VALUE; - -/** - * Link weight for measuring link cost using the geo distance between link - * vertices as determined by the element longitude/latitude annotation. - */ -public class GeoDistanceLinkWeight implements LinkWeight { - - private static final double MAX_KM = 40_075 / 2.0; - - private final DeviceService deviceService; - - /** - * Creates a new link-weight with access to the specified device service. - * - * @param deviceService device service reference - */ - public GeoDistanceLinkWeight(DeviceService deviceService) { - this.deviceService = deviceService; - } - - @Override - public double weight(TopologyEdge edge) { - GeoLocation src = getLocation(edge.link().src().deviceId()); - GeoLocation dst = getLocation(edge.link().dst().deviceId()); - return src != null && dst != null ? src.kilometersTo(dst) : MAX_KM; - } - - private GeoLocation getLocation(DeviceId deviceId) { - Device d = deviceService.getDevice(deviceId); - Annotations a = d != null ? d.annotations() : null; - double latitude = getDouble(a, AnnotationKeys.LATITUDE); - double longitude = getDouble(a, AnnotationKeys.LONGITUDE); - return latitude == MAX_VALUE || longitude == MAX_VALUE ? null : - new GeoLocation(latitude, longitude); - } - - private double getDouble(Annotations a, String key) { - String value = a != null ? a.value(key) : null; - try { - return value != null ? Double.parseDouble(value) : MAX_VALUE; - } catch (NumberFormatException e) { - return MAX_VALUE; - } - } -} - |