added support for windows-1252

This commit is contained in:
Sven Vogel 2023-07-23 22:47:13 +02:00
parent 787b806f9a
commit 24c069b98e
1 changed files with 31 additions and 4 deletions

View File

@ -6,6 +6,8 @@ import me.teridax.jcash.banking.accounts.Owner;
import me.teridax.jcash.decode.StringDecoder;
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.util.*;
@ -23,6 +25,13 @@ public final class BankingManagementSystem {
* Separator used to separate columns of CSV files
*/
private static final String SEPARATOR = ";";
/**
* Charsets to try when decoding the source file
*/
private static final Charset[] ENCODINGS = {
StandardCharsets.UTF_8,
Charset.forName("windows-1252")
};
/**
* A set of banks
@ -76,7 +85,7 @@ public final class BankingManagementSystem {
LOGGER.fine("parsing banking management system from file: " + Objects.toString(file, "null"));
try {
var bms = new BankingManagementSystem();
var content = Files.readString(file);
var content = getSource(file);
// read line by line
// and skip the first line
@ -114,15 +123,33 @@ public final class BankingManagementSystem {
return bms;
} catch (IOException e) {
LOGGER.severe("Could not read file: " + file + " due to: " + e.getMessage());
throw new IllegalArgumentException("Could not read file " + file, e);
} catch (IllegalArgumentException | NullPointerException e) {
LOGGER.severe("Could not parse file: " + file + " due to: " + e.getMessage());
throw new IllegalArgumentException("Could not parse file " + file, e);
}
}
/**
* Attempts to read the entire file into a string.
* This method tires out all encodings in {@link #ENCODINGS}
* @param file the file to read
* @throws IllegalArgumentException if the file cannot be read
* @return the content of the file
*/
private static String getSource(Path file) throws IllegalArgumentException {
Exception lastException = null;
for (var encoding : ENCODINGS) {
try {
return Files.readString(file, encoding);
} catch (IOException e) {
LOGGER.severe("Could not read file: " + file + " due to: " + e.getMessage());
lastException = e;
}
}
assert lastException != null;
throw new IllegalArgumentException("Invalid encoding, or IO exception: " + lastException.getMessage());
}
/**
* Return a bank with the given blz.
*