Changeset 34623 in osm for applications/editors/josm/plugins/openjfx/src

Timestamp:

2018-09-09T22:03:36+02:00 (7 years ago)

Author:

donvip

Message:

see #josm16682 - first version of openjfx plugin

File:

• applications/editors/josm/plugins/openjfx/src/org/openstreetmap/josm/plugins/openjfx/OpenJfxPlugin.java (modified) (2 diffs)

applications/editors/josm/plugins/openjfx/src/org/openstreetmap/josm/plugins/openjfx/OpenJfxPlugin.java

@@ -2 +2 @@
 package org.openstreetmap.josm.plugins.openjfx;
 
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.security.CodeSource;
+import java.util.Enumeration;
+import java.util.Objects;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+import org.openstreetmap.josm.data.Preferences;
 import org.openstreetmap.josm.io.audio.AudioPlayer;
+import org.openstreetmap.josm.plugins.DynamicURLClassLoader;
 import org.openstreetmap.josm.plugins.Plugin;
 import org.openstreetmap.josm.plugins.PluginInformation;
 import org.openstreetmap.josm.plugins.openjfx.io.audio.JavaFxMediaPlayer;
+import org.openstreetmap.josm.tools.Logging;
+import org.openstreetmap.josm.tools.PlatformManager;
 
 /**
- * JAXB plugin brings OpenJFX (JavaFX) to other plugins.
+ * OpenJFX plugin brings OpenJFX (JavaFX) to other plugins.
  */
 public class OpenJfxPlugin extends Plugin {
@@ -19 +41 @@
         super(info);
         AudioPlayer.setSoundPlayerClass(JavaFxMediaPlayer.class);
+        String ext = null;
+        if (PlatformManager.isPlatformWindows()) {
+            ext = ".dll";
+        } else if (PlatformManager.isPlatformUnixoid()) {
+            ext = ".so";
+        } else if (PlatformManager.isPlatformOsx()) {
+            ext = ".dylib";
+        }
+        extractNativeLibs(ext);
+        loadNativeLibs(ext);
+    }
+
+    private static void extractNativeLibs(String ext) {
+        CodeSource src = OpenJfxPlugin.class.getProtectionDomain().getCodeSource();
+        if (src != null) {
+            try (ZipFile zf = new ZipFile(Paths.get(src.getLocation().toURI()).toFile(), StandardCharsets.UTF_8)) {
+                Path dir = getNativeDir();
+                Enumeration<? extends ZipEntry> es = zf.entries();
+                while (es.hasMoreElements()) {
+                    ZipEntry ze = es.nextElement();
+                    String name = ze.getName();
+                    if (name.endsWith(ext) || name.endsWith(".jar")) {
+                        Path targetPath = dir.resolve(name);
+                        File targetFile = targetPath.toFile();
+                        if (!targetFile.exists() || targetFile.lastModified() < ze.getTime()) {
+                            try (InputStream is = zf.getInputStream(ze)) {
+                                Logging.debug("Extracting " + targetPath);
+                                Files.copy(is, targetPath, StandardCopyOption.REPLACE_EXISTING);
+                            }
+                        }
+                    }
+                }
+            } catch (IOException | URISyntaxException e) {
+                Logging.error(e);
+            }
+        } else {
+            Logging.error("Unable to locate openjfx jar file");
+        }
+    }
+
+    private static Path getNativeDir() throws IOException {
+        return Files.createDirectories(new File(Preferences.main().getPluginsDirectory(), "openjfx").toPath());
+    }
+
+    private static class LibVisitor extends SimpleFileVisitor<Path> {
+        private final ClassLoader ccl = Thread.currentThread().getContextClassLoader();
+        private final String ext;
+
+        public LibVisitor(String ext) {
+            this.ext = Objects.requireNonNull(ext);
+        }
+
+        @Override
+        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+            if (ccl instanceof DynamicURLClassLoader) {
+                if (file.endsWith(ext)) {
+                    Logging.debug("Loading " + file);
+                    System.load(file.toAbsolutePath().toString());
+                } else if (file.endsWith(".jar")) {
+                    Logging.debug("Loading " + file);
+                    ((DynamicURLClassLoader) ccl).addURL(file.toUri().toURL());
+                }
+            } else {
+                Logging.error("Unexpected context class loader: " + ccl);
+                return FileVisitResult.TERMINATE;
+            }
+            return FileVisitResult.CONTINUE;
+        }
+    }
+
+    private void loadNativeLibs(String ext) {
+        try {
+            Files.walkFileTree(getNativeDir(), new LibVisitor(ext));
+        } catch (IOException e) {
+            Logging.error(e);
+        }
     }
 }