| package org.eclipse.aether.util.graph.manager; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.eclipse.aether.RepositorySystemSession; |
| import org.eclipse.aether.graph.DependencyNode; |
| |
| /** |
| * A utility class assisting in analyzing the effects of dependency management. |
| */ |
| public final class DependencyManagerUtils |
| { |
| |
| /** |
| * The key in the repository session's {@link RepositorySystemSession#getConfigProperties() configuration |
| * properties} used to store a {@link Boolean} flag controlling the verbose mode for dependency management. If |
| * enabled, the original attributes of a dependency before its update due to dependency managemnent will be recorded |
| * in the node's {@link DependencyNode#getData() custom data} when building a dependency graph. |
| */ |
| public static final String CONFIG_PROP_VERBOSE = "aether.dependencyManager.verbose"; |
| |
| /** |
| * The key in the dependency node's {@link DependencyNode#getData() custom data} under which the original version is |
| * stored. |
| */ |
| public static final String NODE_DATA_PREMANAGED_VERSION = "premanaged.version"; |
| |
| /** |
| * The key in the dependency node's {@link DependencyNode#getData() custom data} under which the original scope is |
| * stored. |
| */ |
| public static final String NODE_DATA_PREMANAGED_SCOPE = "premanaged.scope"; |
| |
| /** |
| * The key in the dependency node's {@link DependencyNode#getData() custom data} under which the original optional |
| * flag is stored. |
| */ |
| public static final String NODE_DATA_PREMANAGED_OPTIONAL = "premanaged.optional"; |
| |
| /** |
| * Gets the version or version range of the specified dependency node before dependency management was applied (if |
| * any). |
| * |
| * @param node The dependency node to retrieve the premanaged data for, must not be {@code null}. |
| * @return The node's dependency version before dependency management or {@code null} if the version was not managed |
| * or if {@link #CONFIG_PROP_VERBOSE} was not enabled. |
| */ |
| public static String getPremanagedVersion( DependencyNode node ) |
| { |
| if ( ( node.getManagedBits() & DependencyNode.MANAGED_VERSION ) == 0 ) |
| { |
| return null; |
| } |
| return cast( node.getData().get( NODE_DATA_PREMANAGED_VERSION ), String.class ); |
| } |
| |
| /** |
| * Gets the scope of the specified dependency node before dependency management was applied (if any). |
| * |
| * @param node The dependency node to retrieve the premanaged data for, must not be {@code null}. |
| * @return The node's dependency scope before dependency management or {@code null} if the scope was not managed or |
| * if {@link #CONFIG_PROP_VERBOSE} was not enabled. |
| */ |
| public static String getPremanagedScope( DependencyNode node ) |
| { |
| if ( ( node.getManagedBits() & DependencyNode.MANAGED_SCOPE ) == 0 ) |
| { |
| return null; |
| } |
| return cast( node.getData().get( NODE_DATA_PREMANAGED_SCOPE ), String.class ); |
| } |
| |
| /** |
| * Gets the optional flag of the specified dependency node before dependency management was applied (if any). |
| * |
| * @param node The dependency node to retrieve the premanaged data for, must not be {@code null}. |
| * @return The node's optional flag before dependency management or {@code null} if the flag was not managed or if |
| * {@link #CONFIG_PROP_VERBOSE} was not enabled. |
| */ |
| public static Boolean getPremanagedOptional( DependencyNode node ) |
| { |
| if ( ( node.getManagedBits() & DependencyNode.MANAGED_OPTIONAL ) == 0 ) |
| { |
| return null; |
| } |
| return cast( node.getData().get( NODE_DATA_PREMANAGED_OPTIONAL ), Boolean.class ); |
| } |
| |
| private static <T> T cast( Object obj, Class<T> type ) |
| { |
| return type.isInstance( obj ) ? type.cast( obj ) : null; |
| } |
| |
| } |