spring LibraryCoordinates 源码

  • 2022-08-12
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springboot LibraryCoordinates 代码

文件路径:/spring-boot-project/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/LibraryCoordinates.java

/*
 * Copyright 2012-2020 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.loader.tools;

/**
 * Encapsulates information about the artifact coordinates of a library.
 *
 * @author Scott Frederick
 * @author Phillip Webb
 * @since 2.3.0
 */
public interface LibraryCoordinates {

	/**
	 * Return the group ID of the coordinates.
	 * @return the group ID
	 */
	String getGroupId();

	/**
	 * Return the artifact ID of the coordinates.
	 * @return the artifact ID
	 */
	String getArtifactId();

	/**
	 * Return the version of the coordinates.
	 * @return the version
	 */
	String getVersion();

	/**
	 * Factory method to create {@link LibraryCoordinates} with the specified values.
	 * @param groupId the group ID
	 * @param artifactId the artifact ID
	 * @param version the version
	 * @return a new {@link LibraryCoordinates} instance
	 */
	static LibraryCoordinates of(String groupId, String artifactId, String version) {
		return new DefaultLibraryCoordinates(groupId, artifactId, version);
	}

	/**
	 * Utility method that returns the given coordinates using the standard
	 * {@code group:artifact:version} form.
	 * @param coordinates the coordinates to convert (may be {@code null})
	 * @return the standard notation form or {@code "::"} when the coordinates are null
	 */
	static String toStandardNotationString(LibraryCoordinates coordinates) {
		if (coordinates == null) {
			return "::";
		}
		StringBuilder builder = new StringBuilder();
		builder.append((coordinates.getGroupId() != null) ? coordinates.getGroupId() : "");
		builder.append(":");
		builder.append((coordinates.getArtifactId() != null) ? coordinates.getArtifactId() : "");
		builder.append(":");
		builder.append((coordinates.getVersion() != null) ? coordinates.getVersion() : "");
		return builder.toString();
	}

}

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