mirror of https://github.com/iSoron/uhabits.git
olegivo
parent
424a417a13
commit
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/*
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* Copyright (C) 2017 Álinson Santos Xavier <isoron@gmail.com>
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*
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* This file is part of Loop Habit Tracker.
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*
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* Loop Habit Tracker is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Loop Habit Tracker is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.isoron.androidbase.utils;
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import android.os.*;
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import android.util.*;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import java.io.*;
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public abstract class FileUtils
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{
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public static void copy(File src, File dst) throws IOException
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{
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FileInputStream inStream = new FileInputStream(src);
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FileOutputStream outStream = new FileOutputStream(dst);
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copy(inStream, outStream);
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}
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public static void copy(InputStream inStream, File dst) throws IOException
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{
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FileOutputStream outStream = new FileOutputStream(dst);
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copy(inStream, outStream);
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}
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public static void copy(InputStream in, OutputStream out) throws IOException
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{
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int numBytes;
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byte[] buffer = new byte[1024];
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while ((numBytes = in.read(buffer)) != -1)
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out.write(buffer, 0, numBytes);
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}
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@Nullable
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public static File getDir(@NonNull File potentialParentDirs[],
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@Nullable String relativePath)
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{
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if (relativePath == null) relativePath = "";
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File chosenDir = null;
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for (File dir : potentialParentDirs)
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{
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if (dir == null || !dir.canWrite()) continue;
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chosenDir = dir;
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break;
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}
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if (chosenDir == null)
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{
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Log.e("FileUtils",
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"getDir: all potential parents are null or non-writable");
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return null;
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}
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File dir = new File(
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String.format("%s/%s/", chosenDir.getAbsolutePath(), relativePath));
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if (!dir.exists() && !dir.mkdirs())
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{
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Log.e("FileUtils",
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"getDir: chosen dir does not exist and cannot be created");
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return null;
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}
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return dir;
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}
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@Nullable
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public static File getSDCardDir(@Nullable String relativePath)
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{
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File parents[] =
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new File[]{ Environment.getExternalStorageDirectory() };
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return getDir(parents, relativePath);
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}
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}
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@ -0,0 +1,66 @@
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/*
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* Copyright (C) 2017 Álinson Santos Xavier <isoron@gmail.com>
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*
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* This file is part of Loop Habit Tracker.
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*
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* Loop Habit Tracker is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Loop Habit Tracker is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.isoron.androidbase.utils
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import android.os.Environment
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import android.util.Log
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import java.io.*
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fun File.copyTo(dst: File) {
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val inStream = FileInputStream(this)
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val outStream = FileOutputStream(dst)
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inStream.copyTo(outStream)
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}
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fun InputStream.copyTo(dst: File) {
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val outStream = FileOutputStream(dst)
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this.copyTo(outStream)
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}
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fun InputStream.copyTo(out: OutputStream) {
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var numBytes: Int
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val buffer = ByteArray(1024)
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while (this.read(buffer).also { numBytes = it } != -1) {
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out.write(buffer, 0, numBytes)
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}
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}
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object FileUtils {
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@JvmStatic
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fun getDir(potentialParentDirs: Array<File>, relativePath: String): File? {
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val chosenDir: File? = potentialParentDirs.firstOrNull { dir -> dir.canWrite() }
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if (chosenDir == null) {
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Log.e("FileUtils", "getDir: all potential parents are null or non-writable")
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return null
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}
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val dir = File("${chosenDir.absolutePath}/${relativePath}/")
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if (!dir.exists() && !dir.mkdirs()) {
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Log.e("FileUtils", "getDir: chosen dir does not exist and cannot be created")
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return null
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}
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return dir
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}
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@JvmStatic
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fun getSDCardDir(relativePath: String): File? {
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val parents = arrayOf(Environment.getExternalStorageDirectory())
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return getDir(parents, relativePath)
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}
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}
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