android: Convert FileUtil to Kotlin
This commit is contained in:
Charles Lombardo
bunnei
@@ -1,296 +0,0 @@
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package org.yuzu.yuzu_emu.utils;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.ParcelFileDescriptor;
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import android.provider.DocumentsContract;
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import androidx.annotation.Nullable;
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import androidx.documentfile.provider.DocumentFile;
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import org.yuzu.yuzu_emu.model.MinimalDocumentFile;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URLDecoder;
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import java.util.ArrayList;
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import java.util.List;
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public class FileUtil {
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static final String PATH_TREE = "tree";
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static final String DECODE_METHOD = "UTF-8";
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static final String APPLICATION_OCTET_STREAM = "application/octet-stream";
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static final String TEXT_PLAIN = "text/plain";
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/**
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* Create a file from directory with filename.
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* @param context Application context
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* @param directory parent path for file.
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* @param filename file display name.
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* @return boolean
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*/
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@Nullable
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public static DocumentFile createFile(Context context, String directory, String filename) {
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try {
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Uri directoryUri = Uri.parse(directory);
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DocumentFile parent = DocumentFile.fromTreeUri(context, directoryUri);
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if (parent == null) return null;
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filename = URLDecoder.decode(filename, DECODE_METHOD);
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String mimeType = APPLICATION_OCTET_STREAM;
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if (filename.endsWith(".txt")) {
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mimeType = TEXT_PLAIN;
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}
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DocumentFile exists = parent.findFile(filename);
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if (exists != null) return exists;
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return parent.createFile(mimeType, filename);
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot create file, error: " + e.getMessage());
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}
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return null;
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}
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/**
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* Create a directory from directory with filename.
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* @param context Application context
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* @param directory parent path for directory.
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* @param directoryName directory display name.
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* @return boolean
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*/
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@Nullable
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public static DocumentFile createDir(Context context, String directory, String directoryName) {
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try {
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Uri directoryUri = Uri.parse(directory);
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DocumentFile parent = DocumentFile.fromTreeUri(context, directoryUri);
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if (parent == null) return null;
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directoryName = URLDecoder.decode(directoryName, DECODE_METHOD);
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DocumentFile isExist = parent.findFile(directoryName);
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if (isExist != null) return isExist;
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return parent.createDirectory(directoryName);
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot create file, error: " + e.getMessage());
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}
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return null;
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}
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/**
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* Open content uri and return file descriptor to JNI.
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* @param context Application context
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* @param path Native content uri path
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* @param openmode will be one of "r", "r", "rw", "wa", "rwa"
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* @return file descriptor
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*/
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public static int openContentUri(Context context, String path, String openmode) {
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try {
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Uri uri = Uri.parse(path);
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ParcelFileDescriptor parcelFileDescriptor = context.getContentResolver().openFileDescriptor(uri, openmode);
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if (parcelFileDescriptor == null) {
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Log.error("[FileUtil]: Cannot get the file descriptor from uri: " + path);
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return -1;
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}
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return parcelFileDescriptor.detachFd();
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}
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catch (Exception e) {
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Log.error("[FileUtil]: Cannot open content uri, error: " + e.getMessage());
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}
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return -1;
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}
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/**
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* Reference: https://stackoverflow.com/questions/42186820/documentfile-is-very-slow
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* This function will be faster than DoucmentFile.listFiles
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* @param context Application context
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* @param uri Directory uri.
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* @return CheapDocument lists.
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*/
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public static MinimalDocumentFile[] listFiles(Context context, Uri uri) {
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final ContentResolver resolver = context.getContentResolver();
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final String[] columns = new String[]{
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DocumentsContract.Document.COLUMN_DOCUMENT_ID,
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DocumentsContract.Document.COLUMN_DISPLAY_NAME,
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DocumentsContract.Document.COLUMN_MIME_TYPE,
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};
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Cursor c = null;
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final List<MinimalDocumentFile> results = new ArrayList<>();
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try {
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String docId;
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if (isRootTreeUri(uri)) {
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docId = DocumentsContract.getTreeDocumentId(uri);
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} else {
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docId = DocumentsContract.getDocumentId(uri);
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}
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final Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri, docId);
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c = resolver.query(childrenUri, columns, null, null, null);
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while(c.moveToNext()) {
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final String documentId = c.getString(0);
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final String documentName = c.getString(1);
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final String documentMimeType = c.getString(2);
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final Uri documentUri = DocumentsContract.buildDocumentUriUsingTree(uri, documentId);
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MinimalDocumentFile document = new MinimalDocumentFile(documentName, documentMimeType, documentUri);
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results.add(document);
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}
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot list file error: " + e.getMessage());
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} finally {
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closeQuietly(c);
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}
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return results.toArray(new MinimalDocumentFile[0]);
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}
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/**
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* Check whether given path exists.
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* @param path Native content uri path
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* @return bool
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*/
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public static boolean Exists(Context context, String path) {
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Cursor c = null;
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try {
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Uri mUri = Uri.parse(path);
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final String[] columns = new String[] { DocumentsContract.Document.COLUMN_DOCUMENT_ID };
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c = context.getContentResolver().query(mUri, columns, null, null, null);
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return c.getCount() > 0;
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} catch (Exception e) {
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Log.info("[FileUtil] Cannot find file from given path, error: " + e.getMessage());
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} finally {
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closeQuietly(c);
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}
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return false;
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}
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/**
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* Check whether given path is a directory
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* @param path content uri path
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* @return bool
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*/
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public static boolean isDirectory(Context context, String path) {
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final ContentResolver resolver = context.getContentResolver();
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final String[] columns = new String[] {
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DocumentsContract.Document.COLUMN_MIME_TYPE
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};
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boolean isDirectory = false;
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Cursor c = null;
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try {
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Uri mUri = Uri.parse(path);
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c = resolver.query(mUri, columns, null, null, null);
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c.moveToNext();
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final String mimeType = c.getString(0);
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isDirectory = mimeType.equals(DocumentsContract.Document.MIME_TYPE_DIR);
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot list files, error: " + e.getMessage());
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} finally {
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closeQuietly(c);
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}
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return isDirectory;
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}
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/**
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* Get file display name from given path
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* @param path content uri path
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* @return String display name
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*/
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public static String getFilename(Context context, String path) {
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final ContentResolver resolver = context.getContentResolver();
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final String[] columns = new String[] {
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DocumentsContract.Document.COLUMN_DISPLAY_NAME
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};
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String filename = "";
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Cursor c = null;
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try {
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Uri mUri = Uri.parse(path);
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c = resolver.query(mUri, columns, null, null, null);
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c.moveToNext();
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filename = c.getString(0);
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot get file size, error: " + e.getMessage());
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} finally {
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closeQuietly(c);
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}
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return filename;
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}
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public static String[] getFilesName(Context context, String path) {
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Uri uri = Uri.parse(path);
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List<String> files = new ArrayList<>();
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for (MinimalDocumentFile file: FileUtil.listFiles(context, uri)) {
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files.add(file.getFilename());
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}
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return files.toArray(new String[0]);
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}
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/**
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* Get file size from given path.
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* @param path content uri path
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* @return long file size
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*/
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public static long getFileSize(Context context, String path) {
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final ContentResolver resolver = context.getContentResolver();
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final String[] columns = new String[] {
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DocumentsContract.Document.COLUMN_SIZE
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};
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long size = 0;
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Cursor c =null;
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try {
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Uri mUri = Uri.parse(path);
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c = resolver.query(mUri, columns, null, null, null);
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c.moveToNext();
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size = c.getLong(0);
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot get file size, error: " + e.getMessage());
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} finally {
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closeQuietly(c);
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}
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return size;
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}
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public static boolean copyUriToInternalStorage(Context context, Uri sourceUri, String destinationParentPath, String destinationFilename) {
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InputStream input = null;
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FileOutputStream output = null;
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try {
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input = context.getContentResolver().openInputStream(sourceUri);
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output = new FileOutputStream(destinationParentPath + "/" + destinationFilename);
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byte[] buffer = new byte[1024];
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int len;
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while ((len = input.read(buffer)) != -1) {
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output.write(buffer, 0, len);
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}
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output.flush();
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return true;
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} catch (Exception e) {
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Log.error("[FileUtil]: Cannot copy file, error: " + e.getMessage());
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} finally {
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if (input != null) {
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try {
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input.close();
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} catch (IOException e) {
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Log.error("[FileUtil]: Cannot close input file, error: " + e.getMessage());
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}
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}
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if (output != null) {
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try {
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output.close();
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} catch (IOException e) {
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Log.error("[FileUtil]: Cannot close output file, error: " + e.getMessage());
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}
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}
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}
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return false;
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}
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public static boolean isRootTreeUri(Uri uri) {
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final List<String> paths = uri.getPathSegments();
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return paths.size() == 2 && PATH_TREE.equals(paths.get(0));
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}
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public static void closeQuietly(AutoCloseable closeable) {
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if (closeable != null) {
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try {
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closeable.close();
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} catch (RuntimeException rethrown) {
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throw rethrown;
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} catch (Exception ignored) {
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}
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}
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}
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}
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@@ -0,0 +1,292 @@
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package org.yuzu.yuzu_emu.utils
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import android.content.Context
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import android.database.Cursor
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import android.net.Uri
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import android.provider.DocumentsContract
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import androidx.documentfile.provider.DocumentFile
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import org.yuzu.yuzu_emu.model.MinimalDocumentFile
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import java.io.FileOutputStream
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import java.io.IOException
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import java.io.InputStream
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import java.net.URLDecoder
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object FileUtil {
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const val PATH_TREE = "tree"
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const val DECODE_METHOD = "UTF-8"
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const val APPLICATION_OCTET_STREAM = "application/octet-stream"
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const val TEXT_PLAIN = "text/plain"
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/**
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* Create a file from directory with filename.
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* @param context Application context
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* @param directory parent path for file.
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* @param filename file display name.
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* @return boolean
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*/
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fun createFile(context: Context?, directory: String?, filename: String): DocumentFile? {
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var decodedFilename = filename
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try {
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val directoryUri = Uri.parse(directory)
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val parent = DocumentFile.fromTreeUri(context!!, directoryUri) ?: return null
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decodedFilename = URLDecoder.decode(decodedFilename, DECODE_METHOD)
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var mimeType = APPLICATION_OCTET_STREAM
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if (decodedFilename.endsWith(".txt")) {
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mimeType = TEXT_PLAIN
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}
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val exists = parent.findFile(decodedFilename)
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return exists ?: parent.createFile(mimeType, decodedFilename)
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot create file, error: " + e.message)
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}
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return null
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}
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/**
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* Create a directory from directory with filename.
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* @param context Application context
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* @param directory parent path for directory.
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* @param directoryName directory display name.
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* @return boolean
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*/
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fun createDir(context: Context?, directory: String?, directoryName: String?): DocumentFile? {
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var decodedDirectoryName = directoryName
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try {
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val directoryUri = Uri.parse(directory)
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val parent = DocumentFile.fromTreeUri(context!!, directoryUri) ?: return null
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decodedDirectoryName = URLDecoder.decode(decodedDirectoryName, DECODE_METHOD)
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val isExist = parent.findFile(decodedDirectoryName)
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return isExist ?: parent.createDirectory(decodedDirectoryName)
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot create file, error: " + e.message)
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}
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return null
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}
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/**
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* Open content uri and return file descriptor to JNI.
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* @param context Application context
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* @param path Native content uri path
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* @param openMode will be one of "r", "r", "rw", "wa", "rwa"
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* @return file descriptor
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*/
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@JvmStatic
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fun openContentUri(context: Context, path: String, openMode: String?): Int {
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try {
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val uri = Uri.parse(path)
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val parcelFileDescriptor = context.contentResolver.openFileDescriptor(uri, openMode!!)
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if (parcelFileDescriptor == null) {
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Log.error("[FileUtil]: Cannot get the file descriptor from uri: $path")
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return -1
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}
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val fileDescriptor = parcelFileDescriptor.detachFd()
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parcelFileDescriptor.close()
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return fileDescriptor
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot open content uri, error: " + e.message)
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}
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return -1
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}
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/**
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* Reference: https://stackoverflow.com/questions/42186820/documentfile-is-very-slow
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* This function will be faster than DoucmentFile.listFiles
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* @param context Application context
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* @param uri Directory uri.
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* @return CheapDocument lists.
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*/
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fun listFiles(context: Context, uri: Uri): Array<MinimalDocumentFile> {
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val resolver = context.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_DOCUMENT_ID,
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DocumentsContract.Document.COLUMN_DISPLAY_NAME,
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DocumentsContract.Document.COLUMN_MIME_TYPE
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)
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var c: Cursor? = null
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val results: MutableList<MinimalDocumentFile> = ArrayList()
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try {
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val docId: String = if (isRootTreeUri(uri)) {
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DocumentsContract.getTreeDocumentId(uri)
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} else {
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DocumentsContract.getDocumentId(uri)
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}
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val childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri, docId)
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c = resolver.query(childrenUri, columns, null, null, null)
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while (c!!.moveToNext()) {
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val documentId = c.getString(0)
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val documentName = c.getString(1)
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val documentMimeType = c.getString(2)
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val documentUri = DocumentsContract.buildDocumentUriUsingTree(uri, documentId)
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val document = MinimalDocumentFile(documentName, documentMimeType, documentUri)
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results.add(document)
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}
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot list file error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return results.toTypedArray()
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}
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/**
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* Check whether given path exists.
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* @param path Native content uri path
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* @return bool
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*/
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fun exists(context: Context, path: String?): Boolean {
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var c: Cursor? = null
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try {
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val mUri = Uri.parse(path)
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val columns = arrayOf(DocumentsContract.Document.COLUMN_DOCUMENT_ID)
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c = context.contentResolver.query(mUri, columns, null, null, null)
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return c!!.count > 0
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} catch (e: Exception) {
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Log.info("[FileUtil] Cannot find file from given path, error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return false
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}
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/**
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* Check whether given path is a directory
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* @param path content uri path
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* @return bool
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*/
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fun isDirectory(context: Context, path: String): Boolean {
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val resolver = context.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_MIME_TYPE
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)
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var isDirectory = false
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var c: Cursor? = null
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try {
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val mUri = Uri.parse(path)
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c = resolver.query(mUri, columns, null, null, null)
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c!!.moveToNext()
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val mimeType = c.getString(0)
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isDirectory = mimeType == DocumentsContract.Document.MIME_TYPE_DIR
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot list files, error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return isDirectory
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}
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||||
/**
|
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* Get file display name from given path
|
||||
* @param path content uri path
|
||||
* @return String display name
|
||||
*/
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||||
fun getFilename(context: Context, path: String): String {
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val resolver = context.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_DISPLAY_NAME
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)
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var filename = ""
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var c: Cursor? = null
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try {
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||||
val mUri = Uri.parse(path)
|
||||
c = resolver.query(mUri, columns, null, null, null)
|
||||
c!!.moveToNext()
|
||||
filename = c.getString(0)
|
||||
} catch (e: Exception) {
|
||||
Log.error("[FileUtil]: Cannot get file size, error: " + e.message)
|
||||
} finally {
|
||||
closeQuietly(c)
|
||||
}
|
||||
return filename
|
||||
}
|
||||
|
||||
fun getFilesName(context: Context, path: String): Array<String> {
|
||||
val uri = Uri.parse(path)
|
||||
val files: MutableList<String> = ArrayList()
|
||||
for (file in listFiles(context, uri)) {
|
||||
files.add(file.filename)
|
||||
}
|
||||
return files.toTypedArray()
|
||||
}
|
||||
|
||||
/**
|
||||
* Get file size from given path.
|
||||
* @param path content uri path
|
||||
* @return long file size
|
||||
*/
|
||||
@JvmStatic
|
||||
fun getFileSize(context: Context, path: String): Long {
|
||||
val resolver = context.contentResolver
|
||||
val columns = arrayOf(
|
||||
DocumentsContract.Document.COLUMN_SIZE
|
||||
)
|
||||
var size: Long = 0
|
||||
var c: Cursor? = null
|
||||
try {
|
||||
val mUri = Uri.parse(path)
|
||||
c = resolver.query(mUri, columns, null, null, null)
|
||||
c!!.moveToNext()
|
||||
size = c.getLong(0)
|
||||
} catch (e: Exception) {
|
||||
Log.error("[FileUtil]: Cannot get file size, error: " + e.message)
|
||||
} finally {
|
||||
closeQuietly(c)
|
||||
}
|
||||
return size
|
||||
}
|
||||
|
||||
@JvmStatic
|
||||
fun copyUriToInternalStorage(
|
||||
context: Context,
|
||||
sourceUri: Uri?,
|
||||
destinationParentPath: String,
|
||||
destinationFilename: String
|
||||
): Boolean {
|
||||
var input: InputStream? = null
|
||||
var output: FileOutputStream? = null
|
||||
try {
|
||||
input = context.contentResolver.openInputStream(sourceUri!!)
|
||||
output = FileOutputStream("$destinationParentPath/$destinationFilename")
|
||||
val buffer = ByteArray(1024)
|
||||
var len: Int
|
||||
while (input!!.read(buffer).also { len = it } != -1) {
|
||||
output.write(buffer, 0, len)
|
||||
}
|
||||
output.flush()
|
||||
return true
|
||||
} catch (e: Exception) {
|
||||
Log.error("[FileUtil]: Cannot copy file, error: " + e.message)
|
||||
} finally {
|
||||
if (input != null) {
|
||||
try {
|
||||
input.close()
|
||||
} catch (e: IOException) {
|
||||
Log.error("[FileUtil]: Cannot close input file, error: " + e.message)
|
||||
}
|
||||
}
|
||||
if (output != null) {
|
||||
try {
|
||||
output.close()
|
||||
} catch (e: IOException) {
|
||||
Log.error("[FileUtil]: Cannot close output file, error: " + e.message)
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
fun isRootTreeUri(uri: Uri): Boolean {
|
||||
val paths = uri.pathSegments
|
||||
return paths.size == 2 && PATH_TREE == paths[0]
|
||||
}
|
||||
|
||||
fun closeQuietly(closeable: AutoCloseable?) {
|
||||
if (closeable != null) {
|
||||
try {
|
||||
closeable.close()
|
||||
} catch (rethrown: RuntimeException) {
|
||||
throw rethrown
|
||||
} catch (ignored: Exception) {
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user