hdfsFS hdfsBuilderConnect(struct hdfsBuilder * bld) {
PARAMETER_ASSERT(bld && !bld->nn.empty(), NULL, EINVAL);
Hdfs::Internal::SessionConfig conf(*bld->conf);
std::string uri;
std::stringstream ss;
ss.imbue(std::locale::classic());
xmlURIPtr uriobj;
FileSystem * fs = NULL;
if (0 == strcasecmp(bld->nn.c_str(), "default")) {
uri = conf.getDefaultUri();
} else {
/*
* handle scheme
*/
if (bld->nn.find("://") == bld->nn.npos) {
uri = "hdfs://";
}
uri += bld->nn;
}
uriobj = xmlParseURI(uri.c_str());
try {
if (!uriobj) {
THROW(Hdfs::InvalidParameter, "Cannot parse connection URI");
}
if (uriobj->port != 0 && bld->port != 0) {
THROW(Hdfs::InvalidParameter, "Cannot determinate port");
}
if (uriobj->user && !bld->userName.empty()) {
THROW(Hdfs::InvalidParameter, "Cannot determinate user name");
}
ss << uriobj->scheme << "://";
if (uriobj->user || !bld->userName.empty()) {
ss << (uriobj->user ? uriobj->user : bld->userName.c_str())
<< '@';
}
if (bld->port == 0 && uriobj->port == 0) {
ss << uriobj->server;
} else {
ss << uriobj->server << ":" << (uriobj->port ? uriobj->port : bld->port);
}
uri = ss.str();
} catch (const std::bad_alloc & e) {
if (uriobj) {
xmlFreeURI(uriobj);
}
SetErrorMessage("Out of memory");
errno = ENOMEM;
return NULL;
} catch (...) {
if (uriobj) {
xmlFreeURI(uriobj);
}
SetLastException(Hdfs::current_exception());
handleException(Hdfs::current_exception());
return NULL;
}
xmlFreeURI(uriobj);
try {
fs = new FileSystem(*bld->conf);
if (!bld->token.empty()) {
fs->connect(uri.c_str(), NULL, bld->token.c_str());
} else {
fs->connect(uri.c_str());
}
return new HdfsFileSystemInternalWrapper(fs);
} catch (const std::bad_alloc & e) {
SetErrorMessage("Out of memory");
delete fs;
errno = ENOMEM;
} catch (...) {
delete fs;
SetLastException(Hdfs::current_exception());
handleException(Hdfs::current_exception());
}
return NULL;
}
