add OI File Manager and AndroidSupportV2 used by it

[android_pandora.git] / apps / oi-filemanager / FileManager / src / org / openintents / filemanager / util / ExtractManager.java

diff --git a/apps/oi-filemanager/FileManager/src/org/openintents/filemanager/util/ExtractManager.java b/apps/oi-filemanager/FileManager/src/org/openintents/filemanager/util/ExtractManager.java
new file mode 100644 (file)
index 0000000..ad07c84
--- /dev/null
+++ b/apps/oi-filemanager/FileManager/src/org/openintents/filemanager/util/ExtractManager.java
@@ -0,0 +1,126 @@
+package org.openintents.filemanager.util;\r
+\r
+import android.app.ProgressDialog;\r
+import android.os.AsyncTask;\r
+import android.util.Log;\r
+import android.widget.Toast;\r
+import org.openintents.filemanager.FileManagerActivity;\r
+import org.openintents.filemanager.R;\r
+\r
+import java.io.*;\r
+import java.util.Enumeration;\r
+import java.util.zip.ZipEntry;\r
+import java.util.zip.ZipFile;\r
+\r
+public class ExtractManager {\r
+    /**\r
+     * TAG for log messages.\r
+     */\r
+    static final String TAG = "ExtractManager";\r
+\r
+    private static final int BUFFER_SIZE = 1024;\r
+    private FileManagerActivity activity;\r
+    private ProgressDialog progressDialog;\r
+\r
+    public ExtractManager(FileManagerActivity activity) {\r
+        this.activity = activity;\r
+    }\r
+\r
+    public void extract(File f, String destinationPath) {\r
+            new ExtractTask().execute(f, destinationPath);\r
+    }\r
+\r
+    private class ExtractTask extends AsyncTask<Object, Void, Integer> {\r
+        private static final int success = 0;\r
+        private static final int error = 1;\r
+\r
+        /**\r
+         * count of extracted files to update the progress bar\r
+         */\r
+        private int isExtracted = 0;\r
+\r
+        /**\r
+         * Recursively extract file or directory\r
+         */\r
+        public boolean extract(File archive, String destinationPath) {\r
+            try {\r
+                ZipFile zipfile = new ZipFile(archive);\r
+                int fileCount = zipfile.size();\r
+                for (Enumeration e = zipfile.entries(); e.hasMoreElements();) {\r
+                    ZipEntry entry = (ZipEntry) e.nextElement();\r
+                    unzipEntry(zipfile, entry, destinationPath);\r
+                    isExtracted++;\r
+                    progressDialog.setProgress((isExtracted * 100)/ fileCount);\r
+                }\r
+                return true;\r
+            } catch (Exception e) {\r
+                Log.e(TAG, "Error while extracting file " + archive, e);\r
+                return false;\r
+            }\r
+        }        \r
+        \r
+        private void createDir(File dir) {\r
+            if (dir.exists()) {\r
+                return;\r
+            }\r
+            Log.i(TAG, "Creating dir " + dir.getName());\r
+            if (!dir.mkdirs()) {\r
+                throw new RuntimeException("Can not create dir " + dir);\r
+            }\r
+        }        \r
+        \r
+        private void unzipEntry(ZipFile zipfile, ZipEntry entry,\r
+                                String outputDir) throws IOException {\r
+            if (entry.isDirectory()) {\r
+                createDir(new File(outputDir, entry.getName()));\r
+                return;\r
+            }\r
+            File outputFile = new File(outputDir, entry.getName());\r
+            if (!outputFile.getParentFile().exists()) {\r
+                createDir(outputFile.getParentFile());\r
+            }\r
+            Log.i(TAG, "Extracting: " + entry);\r
+            BufferedInputStream inputStream = new BufferedInputStream(zipfile.getInputStream(entry));\r
+            BufferedOutputStream outputStream = new BufferedOutputStream(new FileOutputStream(outputFile));\r
+            try {\r
+                int len;\r
+                byte buf[] = new byte[BUFFER_SIZE];\r
+                while ((len = inputStream.read(buf)) > 0) {\r
+                    outputStream.write(buf, 0, len);\r
+                }\r
+            } finally {\r
+                outputStream.close();\r
+                inputStream.close();\r
+            }\r
+        }\r
+\r
+        @Override\r
+        protected void onPreExecute() {\r
+            progressDialog = new ProgressDialog(activity);\r
+            progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);\r
+            progressDialog.setMessage(activity.getResources().getString(R.string.extracting));\r
+            progressDialog.show();\r
+            progressDialog.setProgress(0);\r
+            isExtracted = 0;\r
+        }\r
+\r
+        @Override\r
+        protected Integer doInBackground(Object... params) {\r
+            File f= (File) params[0];\r
+            String destination = (String) params[1];\r
+            boolean result = extract(f, destination);\r
+            return result ? success : error;\r
+        }\r
+\r
+        @Override\r
+        protected void onPostExecute(Integer result) {\r
+            progressDialog.cancel();\r
+            if (result == error){\r
+                Toast.makeText(activity, R.string.extracting_error, Toast.LENGTH_SHORT).show();\r
+            } else if (result == success){\r
+                Toast.makeText(activity, R.string.extracting_success, Toast.LENGTH_SHORT).show();\r
+            }\r
+            activity.refreshList();\r
+        }\r
+    }\r
+}\r