private void checkFile() throws ErrorMessage {
InputStream in = null;
try {
in = new FileInputStream(m_file);
} catch (FileNotFoundException e) {
throwError("file not found");
}
SgfReader reader = new SgfReader(in, m_file, null, 0);
GameTree tree = reader.getTree();
if (tree.getBoardSize() != m_size) throwError("size is not " + m_size);
ConstNode root = tree.getRoot();
GoColor toMove = BLACK;
for (ConstNode node = root; node != null; node = node.getChildConst()) {
if (node.hasSetup()) {
if (m_allowSetup) {
if (node == root) toMove = EMPTY;
else throw new ErrorMessage("setup stones" + " in non-root position");
} else throw new ErrorMessage("contains setup stones");
}
Move move = node.getMove();
if (move != null) {
if (toMove == EMPTY) toMove = move.getColor();
if (move.getColor() != toMove) throwError("non-alternating moves");
toMove = toMove.otherColor();
}
}
}
/**
* Construct reader and read a game.
*
* @param progressShow Callback to show progress, can be null
*/
public GameReader(File file, ProgressShow progressShow) throws ErrorMessage {
m_gameFile = new GameFile();
GameFile.Format format = detectFormat(file);
m_gameFile.m_file = file;
m_gameFile.m_format = format;
InputStream in;
try {
in = new FileInputStream(file);
} catch (FileNotFoundException e) {
throw new ErrorMessage("File \"" + file + "\"not found");
}
switch (format) {
case XML:
{
XmlReader reader = new XmlReader(in, progressShow, file.length());
m_tree = reader.getTree();
m_warnings = reader.getWarnings();
}
break;
case SGF:
{
SgfReader reader = new SgfReader(in, file, progressShow, file.length());
m_tree = reader.getTree();
m_warnings = reader.getWarnings();
}
break;
}
}