spring DependencyResolutionContext 源码

springboot DependencyResolutionContext 代码

文件路径：/spring-boot-project/spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/grape/DependencyResolutionContext.java

/*
 * Copyright 2012-2019 the original author or authors.
 *
 * Licensed 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
 *
 *      https://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.springframework.boot.cli.compiler.grape;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.Exclusion;
import org.eclipse.aether.util.artifact.JavaScopes;

import org.springframework.boot.cli.compiler.dependencies.ArtifactCoordinatesResolver;
import org.springframework.boot.cli.compiler.dependencies.CompositeDependencyManagement;
import org.springframework.boot.cli.compiler.dependencies.DependencyManagement;
import org.springframework.boot.cli.compiler.dependencies.DependencyManagementArtifactCoordinatesResolver;

/**
 * Context used when resolving dependencies.
 *
 * @author Andy Wilkinson
 * @since 1.1.0
 */
public class DependencyResolutionContext {

	private final Map<String, Dependency> managedDependencyByGroupAndArtifact = new HashMap<>();

	private final List<Dependency> managedDependencies = new ArrayList<>();

	private DependencyManagement dependencyManagement = null;

	private ArtifactCoordinatesResolver artifactCoordinatesResolver;

	private String getIdentifier(Dependency dependency) {
		return getIdentifier(dependency.getArtifact().getGroupId(), dependency.getArtifact().getArtifactId());
	}

	private String getIdentifier(String groupId, String artifactId) {
		return groupId + ":" + artifactId;
	}

	public ArtifactCoordinatesResolver getArtifactCoordinatesResolver() {
		return this.artifactCoordinatesResolver;
	}

	public String getManagedVersion(String groupId, String artifactId) {
		Dependency dependency = getManagedDependency(groupId, artifactId);
		if (dependency == null) {
			dependency = this.managedDependencyByGroupAndArtifact.get(getIdentifier(groupId, artifactId));
		}
		return (dependency != null) ? dependency.getArtifact().getVersion() : null;
	}

	public List<Dependency> getManagedDependencies() {
		return Collections.unmodifiableList(this.managedDependencies);
	}

	private Dependency getManagedDependency(String group, String artifact) {
		return this.managedDependencyByGroupAndArtifact.get(getIdentifier(group, artifact));
	}

	public void addManagedDependencies(List<Dependency> dependencies) {
		this.managedDependencies.addAll(dependencies);
		for (Dependency dependency : dependencies) {
			this.managedDependencyByGroupAndArtifact.put(getIdentifier(dependency), dependency);
		}
	}

	public void addDependencyManagement(DependencyManagement dependencyManagement) {
		for (org.springframework.boot.cli.compiler.dependencies.Dependency dependency : dependencyManagement
				.getDependencies()) {
			List<Exclusion> aetherExclusions = new ArrayList<>();
			for (org.springframework.boot.cli.compiler.dependencies.Dependency.Exclusion exclusion : dependency
					.getExclusions()) {
				aetherExclusions.add(new Exclusion(exclusion.getGroupId(), exclusion.getArtifactId(), "*", "*"));
			}
			Dependency aetherDependency = new Dependency(new DefaultArtifact(dependency.getGroupId(),
					dependency.getArtifactId(), "jar", dependency.getVersion()), JavaScopes.COMPILE, false,
					aetherExclusions);
			this.managedDependencies.add(0, aetherDependency);
			this.managedDependencyByGroupAndArtifact.put(getIdentifier(aetherDependency), aetherDependency);
		}
		this.dependencyManagement = (this.dependencyManagement != null)
				? new CompositeDependencyManagement(dependencyManagement, this.dependencyManagement)
				: dependencyManagement;
		this.artifactCoordinatesResolver = new DependencyManagementArtifactCoordinatesResolver(
				this.dependencyManagement);
	}

}

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