net.sourceforge.plantuml.klimt.sprite.ResourcesUtils Maven / Gradle / Ivy

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PlantUML is a component that allows to quickly write diagrams from text.

There is a newer version: 1.2025.0

// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
package net.sourceforge.plantuml.klimt.sprite;

import static java.nio.charset.StandardCharsets.UTF_8;

import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Set;
import java.util.TreeSet;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;

import net.sourceforge.plantuml.log.Logme;
import net.sourceforge.plantuml.security.SFile;
import net.sourceforge.plantuml.version.Version;

public class ResourcesUtils {

	public static Set getJarFile(String path, boolean folder) throws IOException {
		if (path.startsWith("/") || path.endsWith("/")) {
			throw new IllegalArgumentException();
		}
		final String protocol = getProtocol();
		if ("file".equals(protocol)) {
			final URL local = Version.class.getClassLoader().getResource(path);
			try {
				return listEntry(new SFile(local.toURI()));
			} catch (URISyntaxException e) {
				Logme.error(e);
				return null;
			}
		}
		if ("jar".equals(protocol)) {
			final String classFile = Version.class.getName().replace(".", "/") + ".class";
			final URL versionURL = Version.class.getClassLoader().getResource(classFile);
			final String jarPath = versionURL.getPath().substring(5, versionURL.getPath().indexOf("!"));
			if (folder) {
				return listFolders(new JarFile(URLDecoder.decode(jarPath, UTF_8.name())), path + "/");
			} else {
				return listFiles(new JarFile(URLDecoder.decode(jarPath, UTF_8.name())), path + "/");

			}
		}
		return Collections.emptySet();
	}

	private static String getProtocol() {
		final URL resource = Version.class.getClassLoader().getResource("net/sourceforge/plantuml/version/logo.png");
		return resource.getProtocol();
	}

	private static Set listFiles(JarFile jarFile, String path) {
		final Enumeration entries = jarFile.entries();
		final Set result = new TreeSet<>();
		while (entries.hasMoreElements()) {
			final String name = entries.nextElement().getName();
			if (name.startsWith(path)) {
				result.add(name.substring(path.length()));
			}
		}
		return result;
	}

	private static Set listFolders(JarFile jarFile, String path) {
		final Enumeration entries = jarFile.entries();
		final Set result = new TreeSet<>();
		while (entries.hasMoreElements()) {
			final String name = entries.nextElement().getName();
			if (name.startsWith(path)) {
				final String folder = name.substring(path.length());
				final int x = folder.indexOf('/');
				if (x != -1) {
					result.add(folder.substring(0, x));
				}
			}
		}
		return result;
	}

	private static Set listEntry(SFile dir) {
		final Set result = new TreeSet<>();
		for (String n : dir.list()) {
			result.add(n);
		}
		return result;
	}

}