import org.springframework.util.StringUtils; //导入方法依赖的package包/类

public static MavenCoordinates fromPath(String path) {

if (path.startsWith("/")) {

path = path.substring(1);

}

Matcher folderMatcher = FOLDER_PATTERN.matcher(path);

Assert.state(folderMatcher.matches(), "Unable to parse " + path);

String groupId = folderMatcher.group(1).replace('/', '.');

String artifactId = folderMatcher.group(2);

String version = folderMatcher.group(3);

String rootVersion = (version.endsWith(SNAPSHOT_SUFFIX)

? version.substring(0, version.length() - SNAPSHOT_SUFFIX.length())

: version);

String name = folderMatcher.group(4);

String snapshotVersionAndClassifier = name.substring(artifactId.length() + 1);

String extension = StringUtils.getFilenameExtension(snapshotVersionAndClassifier);

snapshotVersionAndClassifier = snapshotVersionAndClassifier.substring(0,

snapshotVersionAndClassifier.length() - extension.length() - 1);

String classifier = snapshotVersionAndClassifier;

if (classifier.startsWith(rootVersion)) {

classifier = classifier.substring(rootVersion.length());

classifier = stripDash(classifier);

}

Matcher versionMatcher = VERSION_FILE_PATTERN.matcher(classifier);

if (versionMatcher.matches()) {

classifier = versionMatcher.group(3);

classifier = stripDash(classifier);

}

if (classifier.startsWith(SNAPSHOT)) {

classifier = classifier.substring(SNAPSHOT.length());

classifier = stripDash(classifier);

}

String snapshotVersion = (classifier.isEmpty() ? snapshotVersionAndClassifier

: snapshotVersionAndClassifier.substring(0,

snapshotVersionAndClassifier.length() - classifier.length() - 1));

return new MavenCoordinates(groupId, artifactId, version, classifier, extension,

snapshotVersion);

}