76 lines
2.8 KiB
Java
76 lines
2.8 KiB
Java
package net.ME1312.SubServers.Bungee.Library.Compatibility;
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import net.ME1312.SubServers.Bungee.SubAPI;
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import com.google.common.io.Resources;
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import net.md_5.bungee.api.ProxyServer;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.util.logging.Logger;
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import static java.util.logging.Level.SEVERE;
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/**
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* JNA Library Loader Class
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*/
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public class JNA {
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private JNA() {}
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private static ClassLoader JNA = null;
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private static final String JNA_VERSION = "5.2.0";
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private static final String JNA_DOWNLOAD = "https://oss.sonatype.org/service/local/repositories/releases/content/net/java/dev/jna/$1/" + JNA_VERSION + "/$1-" + JNA_VERSION + ".jar";
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/**
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* Get/Load JNA Library
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*
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* @return JNA ClassLoader
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*/
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@SuppressWarnings("deprecation")
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public static ClassLoader get() {
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if (JNA == null) {
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boolean announced = false;
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Logger log = ProxyServer.getInstance().getLogger();
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File library = new File(SubAPI.getInstance().getInternals().dir, "SubServers/Cache/Libraries");
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File jna = new File(library, "jna-" + JNA_VERSION + ".jar");
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jna.getParentFile().mkdirs();
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if (!jna.exists()) {
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announced = true;
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log.info(">> Downloading JNA v" + JNA_VERSION);
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try (FileOutputStream fin = new FileOutputStream(jna)) {
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Resources.copy(new URL(JNA_DOWNLOAD.replace("$1", "jna")), fin);
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} catch (Throwable e) {
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jna.delete();
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e.printStackTrace();
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}
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}
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File platform = new File(library, "jna-platform-" + JNA_VERSION + ".jar");
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platform.getParentFile().mkdirs();
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if (!platform.exists()) {
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if (!announced) log.info(">> Downloading JNA platform v" + JNA_VERSION);
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announced = true;
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try (FileOutputStream fin = new FileOutputStream(platform)) {
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Resources.copy(new URL(JNA_DOWNLOAD.replace("$1", "jna-platform")), fin);
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} catch (Throwable e) {
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platform.delete();
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e.printStackTrace();
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}
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}
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if (jna.exists() && platform.exists()) {
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if (announced) log.info(">> JNA download complete");
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try {
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JNA = new URLClassLoader(new URL[]{jna.toURI().toURL(), platform.toURI().toURL()});
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} catch (Throwable e) {
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log.log(SEVERE, ">> Couldn't load JNA:", e);
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}
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} else {
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log.log(SEVERE, ">> Couldn't load JNA:", new FileNotFoundException());
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}
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}
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return JNA;
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}
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}
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