Renamed FIleUtils to IoUtils, added copy() method.

briar-core/src/org/briarproject/util/FileUtils.java

@@ -1,17 +0,0 @@
-package org.briarproject.util;
-
-import java.io.File;
-
-public class FileUtils {
-
-	public static void deleteFileOrDir(File f) {
-		if (f.isFile()) {
-			f.delete();
-		} else if (f.isDirectory()) {
-			File[] children = f.listFiles();
-			if (children != null)
-				for (File child : children) deleteFileOrDir(child);
-			f.delete();
-		}
-	}
-}

briar-core/src/org/briarproject/util/IoUtils.java

@@ -0,0 +1,40 @@
+package org.briarproject.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class IoUtils {
+
+	public static void deleteFileOrDir(File f) {
+		if (f.isFile()) {
+			f.delete();
+		} else if (f.isDirectory()) {
+			File[] children = f.listFiles();
+			if (children != null)
+				for (File child : children) deleteFileOrDir(child);
+			f.delete();
+		}
+	}
+
+	public static void copy(InputStream in, OutputStream out)
+			throws IOException {
+		byte[] buf = new byte[4096];
+		try {
+			try {
+				while (true) {
+					int read = in.read(buf);
+					if (read == -1) break;
+					out.write(buf, 0, read);
+				}
+				out.flush();
+			} finally {
+				in.close();
+			}
+		} finally {
+			out.close();
+		}
+	}
+
+}