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change to streaming

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This commit is contained in:
PhilReact 2025-05-16 01:17:01 +03:00
parent bc4e0716db
commit f2b5802d9c
1 changed files with 27 additions and 20 deletions
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47
src/main/java/org/qortal/utils/FilesystemUtils.java
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@ -6,6 +6,7 @@ import org.qortal.settings.Settings;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.nio.charset.StandardCharsets;
import java.nio.file.*;
@ -232,31 +233,37 @@ public class FilesystemUtils {
}
public static byte[] getSingleFileContents(Path path, Integer maxLength) throws IOException {
byte[] data = null;
// TODO: limit the file size that can be loaded into memory
// If the path is a file, read the contents directly
if (path.toFile().isFile()) {
int fileSize = (int)path.toFile().length();
maxLength = maxLength != null ? Math.min(maxLength, fileSize) : fileSize;
data = FilesystemUtils.readFromFile(path.toString(), 0, maxLength);
}
// Or if it's a directory, only load file contents if there is a single file inside it
else if (path.toFile().isDirectory()) {
Path filePath = null;
if (Files.isRegularFile(path)) {
filePath = path;
} else if (Files.isDirectory(path)) {
String[] files = ArrayUtils.removeElement(path.toFile().list(), ".qortal");
if (files.length == 1) {
Path filePath = Paths.get(path.toString(), files[0]);
if (filePath.toFile().isFile()) {
int fileSize = (int)filePath.toFile().length();
maxLength = maxLength != null ? Math.min(maxLength, fileSize) : fileSize;
data = FilesystemUtils.readFromFile(filePath.toString(), 0, maxLength);
}
filePath = path.resolve(files[0]);
}
}
return data;
if (filePath == null || !Files.exists(filePath)) {
return null;
}
long fileSize = Files.size(filePath);
int length = (maxLength != null) ? Math.min(maxLength, (int) Math.min(fileSize, Integer.MAX_VALUE)) : (int) Math.min(fileSize, Integer.MAX_VALUE);
try (InputStream in = Files.newInputStream(filePath)) {
byte[] buffer = new byte[length];
int bytesRead = in.read(buffer);
if (bytesRead < length) {
// Resize buffer to actual read size
byte[] trimmed = new byte[bytesRead];
System.arraycopy(buffer, 0, trimmed, 0, bytesRead);
return trimmed;
}
return buffer;
}
}
/**
* isSingleFileResource