/**
* Constructor.
*
* @param os output stream
* @param sopts serializer options
* @throws QueryIOException query I/O exception
*/
protected OutputSerializer(final OutputStream os, final SerializerOptions sopts)
throws QueryIOException {
this.sopts = sopts;
indent = sopts.yes(INDENT);
// project-specific options
indents = sopts.get(INDENTS);
tab = sopts.yes(TABULATOR) ? '\t' : ' ';
encoding = Strings.normEncoding(sopts.get(ENCODING), true);
PrintOutput po;
if (encoding == Strings.UTF8) {
po = PrintOutput.get(os);
} else {
try {
po = new EncoderOutput(os, Charset.forName(encoding));
} catch (final Exception ex) {
throw SERENCODING_X.getIO(encoding);
}
}
final int limit = sopts.get(LIMIT);
if (limit != -1) po.setLimit(limit);
final byte[] nl = token(sopts.get(NEWLINE).newline());
if (nl.length != 1 || nl[0] != '\n') po = new NewlineOutput(po, nl);
out = po;
}
/**
* Returns the serialization parameters.
*
* @param ctx context
* @return serialization parameters
*/
public String parameters(final Context ctx) {
try {
qp(args[0], ctx);
parse(null);
return qp.qc.serParams().toString();
} catch (final QueryException ex) {
error(Util.message(ex));
} finally {
qp = null;
}
return SerializerOptions.get(true).toString();
}
/**
* Sets the item separator.
*
* @param def default separator
*/
protected final void itemsep(final String def) {
final String is = sopts.get(ITEM_SEPARATOR);
itemsep = sopts.contains(ITEM_SEPARATOR) ? token(is) : def == null ? null : token(def);
}