switch to alsa.omap3 module

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

package org.openintents.filemanager.util;\r
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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
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import java.io.*;\r
import java.util.Enumeration;\r
import java.util.zip.ZipEntry;\r
import java.util.zip.ZipFile;\r
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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
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    public ExtractManager(FileManagerActivity activity) {\r
        this.activity = activity;\r
    }\r
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    public void extract(File f, String destinationPath) {\r
            new ExtractTask().execute(f, destinationPath);\r
    }\r
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    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
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        @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
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        @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
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        @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