package org.aisen.wen.support.utils;
import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public class FileUtils {
private static final String TAG = FileUtils.class.getSimpleName();
public static void writeFile(InputStream in, File file) {
if (!file.getParentFile().exists())
file.getParentFile().mkdirs();
try {
FileOutputStream out = new FileOutputStream(file);
byte[] buffer = new byte[1024 * 128];
int len = -1;
while ((len = in.read(buffer)) != -1)
out.write(buffer, 0, len);
out.flush();
out.close();
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static String readAssetsFile(String file, Context context) {
StringBuffer sb = new StringBuffer();
try {
InputStream is = context.getResources().getAssets().open(file);
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String readLine = null;
while ((readLine = reader.readLine()) != null) {
sb.append(readLine);
}
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}
public static String readFileToString(File file) {
StringBuffer sb = new StringBuffer();
try {
InputStream is = new FileInputStream(file);
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String readLine = null;
while ((readLine = reader.readLine()) != null) {
sb.append(readLine);
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
return null;
}
String content = sb.toString();
Logger.d(TAG, String.format("read file's content = %s", content.length() >= 150 ? content.substring(0, 150) : content));
return sb.toString();
}
public static byte[] readFileToBytes(File file) {
try {
return readStreamToBytes(new FileInputStream(file));
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static byte[] readStreamToBytes(InputStream in) throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[1024 * 8];
int length = -1;
while ((length = in.read(buffer)) != -1) {
out.write(buffer, 0, length);
}
out.flush();
byte[] result = out.toByteArray();
in.close();
out.close();
return result;
}
public static boolean writeFile(File file, String content) {
if (!file.getParentFile().exists())
file.getParentFile().mkdirs();
FileOutputStream out = null;
try {
out = new FileOutputStream(file);
out.write(content.getBytes());
out.flush();
Logger.d(TAG, String.format("write file's content = %s", content.length() >= 150 ? content.substring(0, 150) : content));
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (out != null)
try {
out.close();
} catch (Exception e2) {
}
}
return true;
}
public static boolean writeFile(File file, byte[] bytes) {
if (!file.getParentFile().exists())
file.getParentFile().mkdirs();
FileOutputStream out = null;
ByteArrayInputStream in = new ByteArrayInputStream(bytes);
try {
out = new FileOutputStream(file);
byte[] buffer = new byte[1024 * 8];
int length = -1;
while ((length = in.read(buffer)) != -1) {
out.write(buffer, 0, length);
}
out.flush();
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (out != null)
try {
out.close();
} catch (Exception e2) {
}
}
return true;
}
public static void copyFile(File sourceFile, File targetFile) throws Exception {
FileInputStream in = new FileInputStream(sourceFile);
byte[] buffer = new byte[128 * 1024];
int len = -1;
FileOutputStream out = new FileOutputStream(targetFile);
while ((len = in.read(buffer)) != -1)
out.write(buffer, 0, len);
out.flush();
out.close();
in.close();
}
@SuppressWarnings("unchecked")
public static <T> T readObject(File file, Class<T> clazz) throws Exception {
ObjectInputStream in = null;
try {
in = new ObjectInputStream(new FileInputStream(file));
return (T) in.readObject();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (in != null)
in.close();
}
return null;
}
public static void writeObject(File file, Serializable object) throws Exception {
if (!file.getParentFile().exists())
file.getParentFile().mkdirs();
ObjectOutputStream out = null;
try {
out = new ObjectOutputStream(new FileOutputStream(file));
out.writeObject(object);
} catch (Exception e) {
e.printStackTrace();
} finally {
out.close();
}
}
@SuppressLint("NewApi")
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] { split[1] };
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context
* The context.
* @param uri
* The Uri to query.
* @param selection
* (Optional) Filter used in the query.
* @param selectionArgs
* (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = { column };
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
}