1 files changed, 61 insertions, 0 deletions
diff --git a/common/src/org/kelar/inputmethod/latin/common/FileUtils.java b/common/src/org/kelar/inputmethod/latin/common/FileUtils.java
new file mode 100644
index 000000000..8696f26c1
--- /dev/null
+++ b/common/src/org/kelar/inputmethod/latin/common/FileUtils.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package org.kelar.inputmethod.latin.common;
+
+import java.io.File;
+import java.io.FilenameFilter;
+
+/**
+ * A simple class to help with removing directories recursively.
+ */
+public class FileUtils {
+    private static final String TAG = "FileUtils";
+
+    public static boolean deleteRecursively(final File path) {
+        if (path.isDirectory()) {
+            final File[] files = path.listFiles();
+            if (files != null) {
+                for (final File child : files) {
+                    deleteRecursively(child);
+                }
+            }
+        }
+        return path.delete();
+    }
+
+    public static boolean deleteFilteredFiles(final File dir, final FilenameFilter fileNameFilter) {
+        if (!dir.isDirectory()) {
+            return false;
+        }
+        final File[] files = dir.listFiles(fileNameFilter);
+        if (files == null) {
+            return false;
+        }
+        boolean hasDeletedAllFiles = true;
+        for (final File file : files) {
+            if (!deleteRecursively(file)) {
+                hasDeletedAllFiles = false;
+            }
+        }
+        return hasDeletedAllFiles;
+    }
+
+    public static boolean renameTo(final File fromFile, final File toFile) {
+        toFile.delete();
+        return fromFile.renameTo(toFile);
+    }
+}