diff options
Diffstat (limited to 'framework/src/onos/core/api/src/main/java/org/onosproject/net/intent/constraint/ObstacleConstraint.java')
-rw-r--r-- | framework/src/onos/core/api/src/main/java/org/onosproject/net/intent/constraint/ObstacleConstraint.java | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/net/intent/constraint/ObstacleConstraint.java b/framework/src/onos/core/api/src/main/java/org/onosproject/net/intent/constraint/ObstacleConstraint.java new file mode 100644 index 00000000..cb1e6b2b --- /dev/null +++ b/framework/src/onos/core/api/src/main/java/org/onosproject/net/intent/constraint/ObstacleConstraint.java @@ -0,0 +1,92 @@ +/* + * 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 com.google.common.annotations.Beta; +import com.google.common.base.MoreObjects; +import com.google.common.collect.ImmutableSet; +import org.onosproject.net.DeviceId; +import org.onosproject.net.Link; +import org.onosproject.net.resource.link.LinkResourceService; + +import java.util.Collections; +import java.util.Objects; +import java.util.Set; + +/** + * Constraint that evaluates elements not passed through. + */ +@Beta +public class ObstacleConstraint extends BooleanConstraint { + + private final Set<DeviceId> obstacles; + + /** + * Creates a new constraint that the specified device are not passed through. + * @param obstacles devices not to be passed + */ + public ObstacleConstraint(DeviceId... obstacles) { + this.obstacles = ImmutableSet.copyOf(obstacles); + } + + // Constructor for serialization + private ObstacleConstraint() { + this.obstacles = Collections.emptySet(); + } + + /** + * Returns the obstacle device ids. + * + * @return Set of obstacle device ids + */ + public Set<DeviceId> obstacles() { + return obstacles; + } + + @Override + public boolean isValid(Link link, LinkResourceService resourceService) { + DeviceId src = link.src().deviceId(); + DeviceId dst = link.dst().deviceId(); + + return !(obstacles.contains(src) || obstacles.contains(dst)); + } + + @Override + public int hashCode() { + return Objects.hash(obstacles); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (!(obj instanceof ObstacleConstraint)) { + return false; + } + + final ObstacleConstraint that = (ObstacleConstraint) obj; + return Objects.equals(this.obstacles, that.obstacles); + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(this) + .add("obstacles", obstacles) + .toString(); + } +} |