public static String readFile(File file) {
try {
byte[] encoded = Files.readAllBytes(Paths.get(file.getCanonicalPath()));
return StandardCharsets.UTF_8.decode(ByteBuffer.wrap(encoded)).toString();
} catch (IOException e) {
return null;
}
}
/**
* function to get the string of the last "*.json"-file within the modulePathOnUSB
*
* @return string with the contents of the last "*.json"-file within the modulePathOnUSB (in
* UTF-8)
* @throws Exception FileNotFoundException will occur if the given folder does not exist Exception
* will occur if there was no file with the given extension found in the given folder
*/
public String getJsonFileAsString() throws Exception {
try {
byte[] encoded = fileToByteArray(modulePathOnUSB + "ModuleData/", "json");
return StandardCharsets.UTF_8.decode(ByteBuffer.wrap(encoded)).toString();
} catch (Exception e) {
throw e;
}
}
/** Gets String contents from channel and closes it. */
public static String getStringContents(ReadableByteChannel channel) throws IOException {
// TODO Checks if a supplier would be nice
try {
ByteBuffer buffer = ByteBuffer.allocate(1024 * 8);
StringBuilder sb = new StringBuilder();
int bytesRead = channel.read(buffer);
while (bytesRead != -1) {
buffer.flip();
CharBuffer charBuffer = StandardCharsets.UTF_8.decode(buffer);
sb.append(charBuffer.toString());
buffer.clear();
bytesRead = channel.read(buffer);
}
return sb.toString();
} finally {
channel.close();
}
}
private String receive(ByteBuffer buffer) throws IOException {
buffer.clear();
channel.receive(buffer);
buffer.flip();
return StandardCharsets.UTF_8.decode(buffer).toString();
}
@NotNull
protected static String readFile(@NotNull String path) throws IOException {
byte[] encoded = Files.readAllBytes(getPath(path));
return StandardCharsets.UTF_8.decode(ByteBuffer.wrap(encoded)).toString();
}