allow path- and uri-based mount points

Author: overheadhunter

src/main/java/org/cryptomator/integrations/mount/Mount.java

@@ -1,7 +1,5 @@
 package org.cryptomator.integrations.mount;
 
-import java.nio.file.Path;
-
 /**
  * Handle to control the lifecycle of a mounted file system.
  * <p>
@@ -14,7 +12,7 @@ public interface Mount extends AutoCloseable {
 	 *
 	 * @return Absolute path to the mountpoint.
 	 */
-	Path getMountpoint();
+	Mountpoint getMountpoint();
 
 	/**
 	 * Unmounts the mounted Volume.

src/main/java/org/cryptomator/integrations/mount/Mountpoint.java

@@ -0,0 +1,36 @@
+package org.cryptomator.integrations.mount;
+
+import java.net.URI;
+import java.nio.file.Path;
+
+/**
+ * A {@link Mount}'s mount point. There are two types of mount points: Path-based and URI-based.
+ */
+public sealed interface Mountpoint permits Mountpoint.WithPath, Mountpoint.WithUri {
+
+	/**
+	 * Gets an URI representation of this mount point.
+	 *
+	 * @return an URI pointing to this mount point
+	 */
+	URI uri();
+
+	static Mountpoint forUri(URI uri) {
+		return new WithUri(uri);
+	}
+
+	static Mountpoint forPath(Path path) {
+		return new WithPath(path);
+	}
+
+	record WithUri(URI uri) implements Mountpoint {
+	}
+
+	record WithPath(Path path) implements Mountpoint {
+
+		public URI uri() {
+			return path.toUri();
+		}
+
+	}
+}

src/test/java/org/cryptomator/integrations/mount/MountpointTest.java

@@ -0,0 +1,36 @@
+package org.cryptomator.integrations.mount;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.net.URI;
+import java.nio.file.Path;
+
+public class MountpointTest {
+
+	@Test
+	@DisplayName("MountPoint.forPath()")
+	public void testForPath() {
+		var path = Path.of("/foo/bar");
+		var mountPoint = Mountpoint.forPath(path);
+
+		if (mountPoint instanceof Mountpoint.WithPath m) {
+			Assertions.assertEquals(path, m.path());
+			Assertions.assertEquals(URI.create("file:/foo/bar"), mountPoint.uri());
+		} else {
+			Assertions.fail();
+		}
+	}
+
+	@Test
+	@DisplayName("MountPoint.forUri()")
+	public void testForUri() {
+		var uri = URI.create("webdav://localhost:8080/foo/bar");
+		var mountPoint = Mountpoint.forUri(uri);
+
+		Assertions.assertTrue(mountPoint instanceof Mountpoint.WithUri);
+		Assertions.assertEquals(uri, mountPoint.uri());
+	}
+
+}