+ xattr support for Mac OSX

build.xml

@@ -182,6 +182,10 @@
 				<include name="net/sf/sevenzipjbinding/**" />
 			</zipfileset>
 			
+			<zipfileset src="${dir.lib}/xattrj.jar">
+				<include name="org/securityvision/**" />
+			</zipfileset>
+
 			<!-- Ivy for @Grapes automatic dependency management -->
 			<zipfileset src="${dir.lib}/scripting/ivy.jar">
 				<include name="org/apache/ivy/**" />

source/net/filebot/MetaAttributeView.java

@@ -10,13 +10,30 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.attribute.UserDefinedFileAttributeView;
 import java.util.AbstractMap;
+import java.util.Arrays;
 import java.util.LinkedHashSet;
+import java.util.List;
 import java.util.Set;
 
+import org.securityvision.xattrj.Xattrj;
+
+import com.sun.jna.Platform;
+
 public class MetaAttributeView extends AbstractMap<String, String> {
 
-	private final UserDefinedFileAttributeView attributeView;
-	private final Charset encoding;
+	// UserDefinedFileAttributeView (for Windows and Linux) OR 3rd party Xattrj (for Mac) because UserDefinedFileAttributeView is not supported (Oracle Java 7/8)
+	private Object xattr;
+	private File file;
+	private Charset encoding;
+
+	private static Xattrj MacXattrSupport;
+
+	private static synchronized Xattrj getMacXattrSupport() throws Throwable {
+		if (MacXattrSupport == null) {
+			MacXattrSupport = new Xattrj();
+		}
+		return MacXattrSupport;
+	}
 
 	public MetaAttributeView(File file) throws IOException {
 		Path path = file.getCanonicalFile().toPath();
@@ -28,49 +45,98 @@ public class MetaAttributeView extends AbstractMap<String, String> {
 			path = link;
 		}
 
-		attributeView = Files.getFileAttributeView(path, UserDefinedFileAttributeView.class);
-		if (attributeView == null) {
+		xattr = Files.getFileAttributeView(path, UserDefinedFileAttributeView.class);
+
+		// try 3rd party Xattrj library
+		if (xattr == null) {
+			if (Platform.isMac()) {
+				try {
+					xattr = getMacXattrSupport();
+				} catch (Throwable e) {
+					throw new IOException("Unable to load library: xattrj", e);
+				}
+			} else {
 				throw new IOException("UserDefinedFileAttributeView is not supported");
 			}
-		encoding = Charset.forName("UTF-8");
+		}
+
+		this.file = path.toFile();
+		this.encoding = Charset.forName("UTF-8");
 	}
 
 	@Override
 	public String get(Object key) {
 		try {
+			if (xattr instanceof UserDefinedFileAttributeView) {
+				UserDefinedFileAttributeView attributeView = (UserDefinedFileAttributeView) xattr;
 				ByteBuffer buffer = ByteBuffer.allocate(attributeView.size(key.toString()));
 				attributeView.read(key.toString(), buffer);
 				buffer.flip();
 
 				return encoding.decode(buffer).toString();
-		} catch (IOException e) {
-			return null;
 			}
+
+			if (xattr instanceof Xattrj) {
+				Xattrj macXattr = (Xattrj) xattr;
+				return macXattr.readAttribute(file, key.toString());
+			}
+		} catch (Exception e) {
+			// ignore
+		}
+
+		return null;
 	}
 
 	@Override
 	public String put(String key, String value) {
 		try {
+			if (xattr instanceof UserDefinedFileAttributeView) {
+				UserDefinedFileAttributeView attributeView = (UserDefinedFileAttributeView) xattr;
 				if (value == null || value.isEmpty()) {
 					attributeView.delete(key);
 				} else {
 					attributeView.write(key, encoding.encode(value));
 				}
-		} catch (IOException e) {
+			}
+
+			if (xattr instanceof Xattrj) {
+				Xattrj macXattr = (Xattrj) xattr;
+				if (value == null || value.isEmpty()) {
+					macXattr.removeAttribute(file, key);
+				} else {
+					macXattr.writeAttribute(file, key, value);
+				}
+			}
+		} catch (Exception e) {
 			throw new IllegalStateException(e);
 		}
+
 		return null; // since we don't know the old value
 	}
 
+	public List<String> list() throws IOException {
+		if (xattr instanceof UserDefinedFileAttributeView) {
+			UserDefinedFileAttributeView attributeView = (UserDefinedFileAttributeView) xattr;
+			return attributeView.list();
+		}
+
+		if (xattr instanceof Xattrj) {
+			Xattrj macXattr = (Xattrj) xattr;
+			return Arrays.asList(macXattr.listAttributes(file));
+		}
+
+		return null;
+	}
+
 	@Override
 	public Set<Entry<String, String>> entrySet() {
 		try {
 			Set<Entry<String, String>> entries = new LinkedHashSet<Entry<String, String>>();
-			for (String name : attributeView.list()) {
+			for (String name : this.list()) {
 				entries.add(new AttributeEntry(name));
 			}
 			return entries;
-		} catch (IOException e) {
+		} catch (Exception e) {
 			throw new IllegalStateException(e);
 		}
 	}
@@ -78,28 +144,10 @@ public class MetaAttributeView extends AbstractMap<String, String> {
 	@Override
 	public void clear() {
 		try {
-			for (String it : attributeView.list()) {
-				attributeView.delete(it);
+			for (String key : this.list()) {
+				this.put(key, null);
 			}
-		} catch (IOException e) {
-			throw new IllegalStateException(e);
-		}
-	}
-
-	@Override
-	public int size() {
-		try {
-			return attributeView.list().size();
-		} catch (IOException e) {
-			throw new IllegalStateException(e);
-		}
-	}
-
-	@Override
-	public boolean isEmpty() {
-		try {
-			return attributeView.list().isEmpty();
-		} catch (IOException e) {
+		} catch (Exception e) {
 			throw new IllegalStateException(e);
 		}
 	}

source/net/filebot/cli/ScriptShellMethods.java

@@ -24,6 +24,7 @@ import java.util.Map;
 
 import net.filebot.MediaTypes;
 import net.filebot.MetaAttributeView;
+import net.filebot.Settings;
 import net.filebot.media.MediaDetection;
 import net.filebot.media.MetaAttributes;
 import net.filebot.similarity.NameSimilarityMetric;
@@ -362,17 +363,24 @@ public class ScriptShellMethods {
 
 	public static MetaAttributeView getXattr(File self) {
 		try {
+			if (Settings.useExtendedFileAttributes()) {
 				return new MetaAttributeView(self);
-		} catch (Exception e) {
-			return null;
 			}
+		} catch (Exception e) {
+			// ignore
+		}
+		return null;
 	}
 
 	public static Object getMetadata(File self) {
 		try {
+			if (Settings.useExtendedFileAttributes()) {
 				return new MetaAttributes(self);
+			}
 		} catch (Exception e) {
+			// ignore
+		}
 		return null;
 	}
-	}
+
 }

source/net/filebot/media/MetaAttributes.java

@@ -61,8 +61,8 @@ public class MetaAttributes {
 	}
 
 	public void clear() {
-		metaAttributeView.remove(FILENAME_KEY);
-		metaAttributeView.remove(METADATA_KEY);
+		metaAttributeView.put(FILENAME_KEY, null);
+		metaAttributeView.put(METADATA_KEY, null);
 	}
 
 }

source/net/filebot/ui/rename/HistoryDialog.java

@@ -68,6 +68,8 @@ import net.filebot.History;
 import net.filebot.History.Element;
 import net.filebot.History.Sequence;
 import net.filebot.ResourceManager;
+import net.filebot.Settings;
+import net.filebot.media.MetaAttributes;
 import net.filebot.ui.transfer.FileExportHandler;
 import net.filebot.ui.transfer.FileTransferablePolicy;
 import net.filebot.ui.transfer.LoadAction;
@@ -534,8 +536,13 @@ class HistoryDialog extends JDialog {
 
 			for (Entry<File, File> entry : getRenameMap(directory).entrySet()) {
 				try {
-					moveRename(entry.getKey(), entry.getValue());
+					File destination = moveRename(entry.getKey(), entry.getValue());
 					count++;
+
+					// remove xattr that may have been set
+					if (Settings.useExtendedFileAttributes()) {
+						new MetaAttributes(destination).clear();
+					}
 				} catch (Exception e) {
 					Logger.getLogger(HistoryDialog.class.getName()).log(Level.SEVERE, e.getMessage(), e);
 				}