/**
* Converts node tree to a valid xml string.
*
* @return xml string
*/
public final Value asXML(Env env, @Optional Value filename) {
Value value = toXML(env);
if (!value.isString()) {
return value;
}
StringValue str = value.toStringValue(env);
if (filename.isDefault()) {
return str;
} else {
Path path = env.lookupPwd(filename);
OutputStream os = null;
try {
os = path.openWrite();
str.writeTo(os);
return BooleanValue.TRUE;
} catch (IOException e) {
env.warning(e);
return BooleanValue.FALSE;
} finally {
if (os != null) {
IoUtil.close(os);
}
}
}
}
