001package org.eclipse.aether.util.graph.transformer; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import org.eclipse.aether.RepositoryException; 023import org.eclipse.aether.util.artifact.JavaScopes; 024import org.eclipse.aether.util.graph.transformer.ConflictResolver.ScopeContext; 025import org.eclipse.aether.util.graph.transformer.ConflictResolver.ScopeDeriver; 026 027/** 028 * A scope deriver for use with {@link ConflictResolver} that supports the scopes from {@link JavaScopes}. 029 */ 030public final class JavaScopeDeriver 031 extends ScopeDeriver 032{ 033 034 /** 035 * Creates a new instance of this scope deriver. 036 */ 037 public JavaScopeDeriver() 038 { 039 } 040 041 @Override 042 public void deriveScope( ScopeContext context ) 043 throws RepositoryException 044 { 045 context.setDerivedScope( getDerivedScope( context.getParentScope(), context.getChildScope() ) ); 046 } 047 048 private String getDerivedScope( String parentScope, String childScope ) 049 { 050 String derivedScope; 051 052 if ( JavaScopes.SYSTEM.equals( childScope ) || JavaScopes.TEST.equals( childScope ) ) 053 { 054 derivedScope = childScope; 055 } 056 else if ( parentScope == null || parentScope.isEmpty() || JavaScopes.COMPILE.equals( parentScope ) ) 057 { 058 derivedScope = childScope; 059 } 060 else if ( JavaScopes.TEST.equals( parentScope ) || JavaScopes.RUNTIME.equals( parentScope ) ) 061 { 062 derivedScope = parentScope; 063 } 064 else if ( JavaScopes.SYSTEM.equals( parentScope ) || JavaScopes.PROVIDED.equals( parentScope ) ) 065 { 066 derivedScope = JavaScopes.PROVIDED; 067 } 068 else 069 { 070 derivedScope = JavaScopes.RUNTIME; 071 } 072 073 return derivedScope; 074 } 075 076}