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package gtPlusPlus.core.util.data;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.util.ArrayList;
import java.util.List;
import gtPlusPlus.api.objects.Logger;
import gtPlusPlus.core.util.Utils;
public class FileUtils {
private static final Charset utf8 = StandardCharsets.UTF_8;
public static boolean doesFileExist(File f) {
return f != null && f.exists() && !f.isDirectory();
}
public static File createFile(String path, String filename, String extension) {
File file = new File(Utils.getMcDir(), path + filename + extension);
return createFile(file);
}
public static File createFile(File aFile) {
boolean blnCreated = false;
Logger.INFO("Trying to use path " + aFile.getPath());
try {
Logger.INFO("Trying to use path " + aFile.getCanonicalPath());
Logger.INFO("Trying to use absolute path " + aFile.getAbsolutePath());
blnCreated = aFile.createNewFile();
} catch (IOException ioe) {
Logger.INFO("Error while creating a new empty file :" + ioe);
return null;
}
return blnCreated ? aFile : null;
}
public static File getFile(String filename, String extension) {
return getFile("", filename, extension);
}
public static File getFile(String path, String filename, String extension) {
if (path == null || path.length() <= 0) {
path = "";
} else {
path = path + "/";
}
if (filename == null || filename.length() <= 0) {
return null;
}
if (extension == null || extension.length() <= 0) {
extension = ".txt";
} else {
extension = "." + extension;
}
File file = new File(Utils.getMcDir(), path + filename + extension);
boolean doesExist = doesFileExist(file);
if (doesExist) {
Logger.INFO("Found File: " + file.getAbsolutePath());
return file;
} else {
Logger.INFO("Creating file, as it was not found.");
return createFile(path, filename, extension);
}
}
public static void appendListToFile(File file, List<String> content) {
try {
long oldSize;
long newSize;
if (doesFileExist(file)) {
Path p = Paths.get(file.getPath());
if (p != null && Files.isWritable(p)) {
oldSize = Files.size(p);
try {
Files.write(p, content, utf8, StandardOpenOption.APPEND);
} catch (IOException e) {
e.printStackTrace();
}
newSize = Files.size(p);
}
}
} catch (IOException ignored) {}
}
/**
* Reads the contents of a file line by line to a List of Strings using the default encoding for the VM. The file is
* always closed.
*
* @param file the file to read, must not be {@code null}
* @return the list of Strings representing each line in the file, never {@code null}
* @throws IOException in case of an I/O error
* @since 1.3
*/
public static List<String> readLines(File file) {
try {
return org.apache.commons.io.FileUtils.readLines(file, utf8);
} catch (IOException e) {
return new ArrayList<>();
}
}
}
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