switch to alsa.omap3 module

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

package org.openintents.filemanager.util;\r
\r
import android.app.ProgressDialog;\r
import android.content.Intent;\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
import org.openintents.intents.FileManagerIntents;\r
\r
import java.io.*;\r
import java.util.ArrayList;\r
import java.util.List;\r
import java.util.zip.ZipEntry;\r
import java.util.zip.ZipOutputStream;\r
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public class CompressManager {\r
    /**\r
     * TAG for log messages.\r
     */\r
    static final String TAG = "CompressManager";\r
\r
    private static final int BUFFER_SIZE = 1024;\r
    private FileManagerActivity activity;\r
    private ProgressDialog progressDialog;\r
    private int fileCount;\r
    private String fileOut;\r
\r
    public CompressManager(FileManagerActivity activity) {\r
        this.activity = activity;\r
    }\r
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    public void compress(File f, String out) {\r
        List <File>list = new ArrayList<File>();\r
        list.add(f);\r
        compress(list, out);\r
    }    \r
\r
    public void compress(List<File> list, String out) {\r
        if (list.isEmpty()){\r
            Log.v(TAG, "couldn't compress empty file list");\r
            return;\r
        }\r
        this.fileOut = list.get(0).getParent()+File.separator+out;\r
        fileCount=0;\r
        for (File f: list){\r
            fileCount += FileUtils.getFileCount(f);\r
        }\r
        new CompressTask().execute(list);\r
    }\r
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    private class CompressTask extends AsyncTask<Object, Void, Integer> {\r
        private static final int success = 0;\r
        private static final int error = 1;\r
        private ZipOutputStream zos;\r
\r
        /**\r
         * count of compressed file to update the progress bar\r
         */\r
        private int isCompressed = 0;\r
\r
        /**\r
         * Recursively compress file or directory\r
         * @returns 0 if successful, error value otherwise.\r
         */\r
        private void compressFile(File file, String path) throws IOException {\r
            if (!file.isDirectory()){\r
                byte[] buf = new byte[BUFFER_SIZE];\r
                int len;\r
                FileInputStream in = new FileInputStream(file);\r
                zos.putNextEntry(new ZipEntry(path + "/" + file.getName()));\r
                while ((len = in.read(buf)) > 0) {\r
                    zos.write(buf, 0, len);\r
                }\r
                in.close();\r
                return;\r
            }\r
            if (file.list() == null){\r
                return;\r
            }\r
            for (String fileName: file.list()){\r
                File f = new File(file.getAbsolutePath()+File.separator+fileName);\r
                compressFile(f, path + File.separator + file.getName());\r
                isCompressed++;\r
                progressDialog.setProgress((isCompressed * 100)/ fileCount);\r
            }\r
        }\r
\r
        @Override\r
        protected void onPreExecute() {\r
            FileOutputStream out = null;\r
            progressDialog = new ProgressDialog(activity);\r
            progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);\r
            progressDialog.setMessage(activity.getResources().getString(R.string.compressing));\r
            progressDialog.show();\r
            progressDialog.setProgress(0);\r
            try {\r
                out = new FileOutputStream(new File(fileOut));\r
                zos = new ZipOutputStream(new BufferedOutputStream(out));\r
            } catch (FileNotFoundException e) {\r
                Log.e(TAG, "error while creating ZipOutputStream");\r
            }\r
        }\r
\r
        @Override\r
        protected Integer doInBackground(Object... params) {\r
            if (zos == null){\r
                return error;\r
            }\r
            List<File> list = (List<File>) params[0]; \r
            for (File file:list){\r
                try {\r
                    compressFile(file, "");\r
                } catch (IOException e) {\r
                    Log.e(TAG, "Error while compressing", e);\r
                    return error;\r
                }\r
            }\r
            return success;\r
        }\r
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        @Override\r
        protected void onPostExecute(Integer result) {\r
            try {\r
                zos.flush();\r
                zos.close();\r
            } catch (IOException e) {\r
                Log.e(TAG, "error while closing zos", e);\r
            }\r
            progressDialog.cancel();\r
            if (result == error){\r
                Toast.makeText(activity, R.string.compressing_error, Toast.LENGTH_SHORT).show();\r
            } else if (result == success){\r
                Toast.makeText(activity, R.string.compressing_success, Toast.LENGTH_SHORT).show();\r
            }\r
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            if (activity.getIntent().getAction().equals(FileManagerIntents.ACTION_MULTI_SELECT)){\r
                Intent intent = activity.getIntent();\r
                activity.setResult(activity.RESULT_OK, intent);\r
                activity.finish();\r
            } else {\r
                activity.refreshList();\r
            }\r
        }\r
    }\r
}\r