001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.util.graph.transformer;
020
021import org.eclipse.aether.RepositoryException;
022import org.eclipse.aether.util.artifact.DependencyScopes;
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 *
030 * @deprecated This class belongs to consumer project. Resolver have no notion of scopes other than those defined
031 * in {@link DependencyScopes} class, moreover it has no knowledge about scope transformation
032 * of dependencies to build path scopes.
033 */
034@Deprecated
035public final class JavaScopeDeriver extends ScopeDeriver {
036
037    /**
038     * Creates a new instance of this scope deriver.
039     */
040    public JavaScopeDeriver() {}
041
042    @Override
043    public void deriveScope(ScopeContext context) throws RepositoryException {
044        context.setDerivedScope(getDerivedScope(context.getParentScope(), context.getChildScope()));
045    }
046
047    private String getDerivedScope(String parentScope, String childScope) {
048        String derivedScope;
049
050        if (JavaScopes.SYSTEM.equals(childScope) || JavaScopes.TEST.equals(childScope)) {
051            derivedScope = childScope;
052        } else if (parentScope == null || parentScope.isEmpty() || JavaScopes.COMPILE.equals(parentScope)) {
053            derivedScope = childScope;
054        } else if (JavaScopes.TEST.equals(parentScope) || JavaScopes.RUNTIME.equals(parentScope)) {
055            derivedScope = parentScope;
056        } else if (JavaScopes.SYSTEM.equals(parentScope) || JavaScopes.PROVIDED.equals(parentScope)) {
057            derivedScope = JavaScopes.PROVIDED;
058        } else {
059            derivedScope = JavaScopes.RUNTIME;
060        }
061
062        return derivedScope;
063    }
064}