| package org.apache.maven.artifact.versioning; |
| |
| |
| /* |
| * 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. |
| */ |
| |
| /** |
| * Describes a restriction in versioning. |
| * |
| * @author <a href="mailto:brett@apache.org">Brett Porter</a> |
| * @version $Id$ |
| */ |
| public class Restriction |
| { |
| private final ArtifactVersion lowerBound; |
| |
| private final boolean lowerBoundInclusive; |
| |
| private final ArtifactVersion upperBound; |
| |
| private final boolean upperBoundInclusive; |
| |
| static final Restriction EVERYTHING = new Restriction( null, false, null, false ); |
| |
| public Restriction( ArtifactVersion lowerBound, boolean lowerBoundInclusive, ArtifactVersion upperBound, |
| boolean upperBoundInclusive ) |
| { |
| this.lowerBound = lowerBound; |
| this.lowerBoundInclusive = lowerBoundInclusive; |
| this.upperBound = upperBound; |
| this.upperBoundInclusive = upperBoundInclusive; |
| } |
| |
| public ArtifactVersion getLowerBound() |
| { |
| return lowerBound; |
| } |
| |
| public boolean isLowerBoundInclusive() |
| { |
| return lowerBoundInclusive; |
| } |
| |
| public ArtifactVersion getUpperBound() |
| { |
| return upperBound; |
| } |
| |
| public boolean isUpperBoundInclusive() |
| { |
| return upperBoundInclusive; |
| } |
| |
| public boolean containsVersion( ArtifactVersion version ) |
| { |
| if ( lowerBound != null ) |
| { |
| int comparison = lowerBound.compareTo( version ); |
| if ( comparison == 0 && !lowerBoundInclusive ) |
| { |
| return false; |
| } |
| if ( comparison > 0 ) |
| { |
| return false; |
| } |
| } |
| if ( upperBound != null ) |
| { |
| int comparison = upperBound.compareTo( version ); |
| if ( comparison == 0 && !upperBoundInclusive ) |
| { |
| return false; |
| } |
| if ( comparison < 0 ) |
| { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| |
| public int hashCode() |
| { |
| int result = 13; |
| |
| if ( lowerBound == null ) |
| { |
| result += 1; |
| } |
| else |
| { |
| result += lowerBound.hashCode(); |
| } |
| |
| result *= lowerBoundInclusive ? 1 : 2; |
| |
| if ( upperBound == null ) |
| { |
| result -= 3; |
| } |
| else |
| { |
| result -= upperBound.hashCode(); |
| } |
| |
| result *= upperBoundInclusive ? 2 : 3; |
| |
| return result; |
| } |
| |
| public boolean equals( Object other ) |
| { |
| if ( this == other ) |
| { |
| return true; |
| } |
| |
| if ( !(other instanceof Restriction ) ) |
| { |
| return false; |
| } |
| |
| Restriction restriction = (Restriction) other; |
| if ( lowerBound != null ) |
| { |
| if ( !lowerBound.equals( restriction.lowerBound ) ) |
| { |
| return false; |
| } |
| } |
| else if ( restriction.lowerBound != null ) |
| { |
| return false; |
| } |
| |
| if ( lowerBoundInclusive != restriction.lowerBoundInclusive ) |
| { |
| return false; |
| } |
| |
| if ( upperBound != null ) |
| { |
| if ( !upperBound.equals( restriction.upperBound ) ) |
| { |
| return false; |
| } |
| } |
| else if ( restriction.upperBound != null ) |
| { |
| return false; |
| } |
| |
| if ( upperBoundInclusive != restriction.upperBoundInclusive ) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public String toString() |
| { |
| StringBuffer buf = new StringBuffer(); |
| |
| buf.append( isLowerBoundInclusive() ? "[" : "(" ); |
| if ( getLowerBound() != null ) |
| { |
| buf.append( getLowerBound().toString() ); |
| } |
| buf.append( "," ); |
| if ( getUpperBound() != null ) |
| { |
| buf.append( getUpperBound().toString() ); |
| } |
| buf.append( isUpperBoundInclusive() ? "]" : ")" ); |
| |
| return buf.toString(); |
| } |
| } |