| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.pulsar.client.api; |
| |
| import java.util.Objects; |
| import org.apache.pulsar.common.classification.InterfaceAudience; |
| import org.apache.pulsar.common.classification.InterfaceStability; |
| |
| /** |
| * Int range. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class Range { |
| |
| private final int start; |
| private final int end; |
| |
| |
| public Range(int start, int end) { |
| if (end < start) { |
| throw new IllegalArgumentException("Range end must >= range start."); |
| } |
| this.start = start; |
| this.end = end; |
| } |
| |
| public static Range of(int start, int end) { |
| return new Range(start, end); |
| } |
| |
| public int getStart() { |
| return start; |
| } |
| |
| public int getEnd() { |
| return end; |
| } |
| |
| public Range intersect(Range range) { |
| int start = Math.max(range.getStart(), this.getStart()); |
| int end = Math.min(range.getEnd(), this.getEnd()); |
| if (end >= start) { |
| return Range.of(start, end); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| Range range = (Range) o; |
| return start == range.start && end == range.end; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(start, end); |
| } |
| |
| @Override |
| public String toString() { |
| return "[" + start + ", " + end + "]"; |
| } |
| } |