| /* |
| * 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.onlab.util; |
| |
| import com.google.common.annotations.Beta; |
| import com.google.common.collect.DiscreteDomain; |
| import com.google.common.collect.Range; |
| |
| import java.util.Objects; |
| |
| /** |
| * Represent a closed-open range. |
| * The primary user of this class is the ResourceService implementation. |
| */ |
| @Beta |
| public final class ClosedOpenRange { |
| private final int lowerBound; // inclusive |
| private final int upperBound; // exclusive |
| |
| /** |
| * Creates a range from a Guava's range. |
| * |
| * @param range Guava's range |
| * @return this range |
| */ |
| public static ClosedOpenRange of(Range<Integer> range) { |
| return new ClosedOpenRange( |
| range.canonical(DiscreteDomain.integers()).lowerEndpoint(), |
| range.canonical(DiscreteDomain.integers()).upperEndpoint()); |
| } |
| |
| /** |
| * Create a range with a lower bound and an upper bound. |
| * |
| * @param lowerBound lower bound (inclusive) |
| * @param upperBound upper bound (exclusive) |
| * @return this range |
| */ |
| public static ClosedOpenRange of(int lowerBound, int upperBound) { |
| return new ClosedOpenRange(lowerBound, upperBound); |
| } |
| |
| private ClosedOpenRange(int lowerBound, int upperBound) { |
| this.lowerBound = lowerBound; |
| this.upperBound = upperBound; |
| } |
| |
| /** |
| * Returns the lower bound. |
| * |
| * @return the lower bound |
| */ |
| public int lowerBound() { |
| return lowerBound; |
| } |
| |
| /** |
| * Returns the upper bound. |
| * |
| * @return the upper bound |
| */ |
| public int upperBound() { |
| return upperBound; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(lowerBound, upperBound); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (!(obj instanceof ClosedOpenRange)) { |
| return false; |
| } |
| |
| final ClosedOpenRange other = (ClosedOpenRange) obj; |
| return Objects.equals(this.lowerBound, other.lowerBound) |
| && Objects.equals(this.upperBound, other.upperBound); |
| } |
| |
| @Override |
| public String toString() { |
| return "[" + lowerBound + ".." + upperBound + ")"; |
| } |
| } |