1 files changed, 154 insertions, 0 deletions
diff --git a/common/src/com/android/io/FolderWrapper.java b/common/src/com/android/io/FolderWrapper.java
new file mode 100644
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+++ b/common/src/com/android/io/FolderWrapper.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2008 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 com.android.io;
+
+
+import java.io.File;
+import java.net.URI;
+import java.util.ArrayList;
+
+/**
+ * An implementation of {@link IAbstractFolder} extending {@link File}.
+ */
+public class FolderWrapper extends File implements IAbstractFolder {
+
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * Creates a new File instance from a parent abstract pathname and a child pathname string.
+     * @param parent the parent pathname
+     * @param child the child name
+     *
+     * @see File#File(File, String)
+     */
+    public FolderWrapper(File parent, String child) {
+        super(parent, child);
+    }
+
+    /**
+     * Creates a new File instance by converting the given pathname string into an abstract
+     * pathname.
+     * @param pathname the pathname
+     *
+     * @see File#File(String)
+     */
+    public FolderWrapper(String pathname) {
+        super(pathname);
+    }
+
+    /**
+     * Creates a new File instance from a parent abstract pathname and a child pathname string.
+     * @param parent the parent pathname
+     * @param child the child name
+     *
+     * @see File#File(String, String)
+     */
+    public FolderWrapper(String parent, String child) {
+        super(parent, child);
+    }
+
+    /**
+     * Creates a new File instance by converting the given <code>file:</code> URI into an
+     * abstract pathname.
+     * @param uri An absolute, hierarchical URI with a scheme equal to "file", a non-empty path
+     * component, and undefined authority, query, and fragment components
+     *
+     * @see File#File(URI)
+     */
+    public FolderWrapper(URI uri) {
+        super(uri);
+    }
+
+    /**
+     * Creates a new File instance matching a give {@link File} object.
+     * @param file the file to match
+     */
+    public FolderWrapper(File file) {
+        super(file.getAbsolutePath());
+    }
+
+    public IAbstractResource[] listMembers() {
+        File[] files = listFiles();
+        final int count = files == null ? 0 : files.length;
+        IAbstractResource[] afiles = new IAbstractResource[count];
+
+        if (files != null) {
+            for (int i = 0 ; i < count ; i++) {
+                File f = files[i];
+                if (f.isFile()) {
+                    afiles[i] = new FileWrapper(f);
+                } else if (f.isDirectory()) {
+                    afiles[i] = new FolderWrapper(f);
+                }
+            }
+        }
+
+        return afiles;
+    }
+
+    public boolean hasFile(final String name) {
+        String[] match = list(new FilenameFilter() {
+            public boolean accept(IAbstractFolder dir, String filename) {
+                return name.equals(filename);
+            }
+        });
+
+        return match.length > 0;
+    }
+
+    public IAbstractFile getFile(String name) {
+        return new FileWrapper(this, name);
+    }
+
+    public IAbstractFolder getFolder(String name) {
+        return new FolderWrapper(this, name);
+    }
+
+    public IAbstractFolder getParentFolder() {
+        String p = this.getParent();
+        if (p == null) {
+            return null;
+        }
+        return new FolderWrapper(p);
+    }
+
+    public String getOsLocation() {
+        return getAbsolutePath();
+    }
+
+    @Override
+    public boolean exists() {
+        return isDirectory();
+    }
+
+    public String[] list(FilenameFilter filter) {
+        File[] files = listFiles();
+        if (files != null && files.length > 0) {
+            ArrayList<String> list = new ArrayList<String>();
+
+            for (File file : files) {
+                if (filter.accept(this, file.getName())) {
+                    list.add(file.getName());
+                }
+            }
+
+            return list.toArray(new String[list.size()]);
+        }
+
+        return new String[0];
+    }
+}