| /* |
| * Copyright 2016-present 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.resource; |
| |
| import com.google.common.annotations.Beta; |
| import com.google.common.base.MoreObjects; |
| |
| import java.util.Objects; |
| import java.util.Optional; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Represents a resource path which specifies a resource which can be measured |
| * as continuous value. Bandwidth of a link is an example of the resource. |
| */ |
| @Beta |
| public final class ContinuousResource implements Resource { |
| private final ContinuousResourceId id; |
| private final double value; |
| |
| ContinuousResource(ContinuousResourceId id, double value) { |
| this.id = id; |
| this.value = value; |
| } |
| |
| // for serializer |
| ContinuousResource() { |
| this.id = null; |
| this.value = 0; |
| } |
| |
| @Override |
| public ContinuousResourceId id() { |
| return id; |
| } |
| |
| @Override |
| public String simpleTypeName() { |
| return id.simpleTypeName(); |
| } |
| |
| @Override |
| public boolean isTypeOf(Class<?> type) { |
| checkNotNull(type); |
| |
| return id.isTypeOf(type); |
| } |
| |
| /** |
| * Returns the value of the resource amount. |
| * |
| * @return the value of the resource amount |
| */ |
| public double value() { |
| return value; |
| } |
| |
| @Override |
| public boolean isSubTypeOf(Class<?> ancestor) { |
| checkNotNull(ancestor); |
| |
| return id.isSubTypeOf(ancestor); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * A user must specify Double.class or double.class to avoid an empty value. |
| */ |
| @Override |
| public <T> Optional<T> valueAs(Class<T> type) { |
| checkNotNull(type); |
| |
| if (type == Object.class || type == double.class || type == Double.class) { |
| @SuppressWarnings("unchecked") |
| T value = (T) Double.valueOf(this.value); |
| return Optional.of(value); |
| } |
| |
| return Optional.empty(); |
| } |
| |
| @Override |
| public DiscreteResource child(Object child) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public ContinuousResource child(Class<?> child, double value) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Optional<DiscreteResource> parent() { |
| return id.parent().map(x -> Resources.discrete(x).resource()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(id, value); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null || getClass() != obj.getClass()) { |
| return false; |
| } |
| final ContinuousResource other = (ContinuousResource) obj; |
| return Objects.equals(this.id, other.id) |
| && Objects.equals(this.value, other.value); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(this) |
| .add("id", id) |
| .add("value", value) |
| .toString(); |
| } |
| } |