void ListPolicy::init(const Host::Ptr& connected_host,
const HostMap& hosts,
Random* random) {
HostMap valid_hosts;
for (HostMap::const_iterator i = hosts.begin(),
end = hosts.end(); i != end; ++i) {
const Host::Ptr& host = i->second;
if (is_valid_host(host)) {
valid_hosts.insert(HostPair(i->first, host));
}
}
if (valid_hosts.empty()) {
LOG_ERROR("No valid hosts available for list policy");
}
ChainedLoadBalancingPolicy::init(connected_host, valid_hosts, random);
}
static int url_parse_host(const char **url,
size_t *data_out_ptr,
size_t out_limit,
avs_url_t *parsed_url) {
parsed_url->host_ptr = *data_out_ptr;
if (**url == '[') {
++*url;
while (*data_out_ptr < out_limit && **url != '\0' && **url != ']') {
parsed_url->data[(*data_out_ptr)++] = *(*url)++;
}
assert(**url == '\0' || **url == ']');
if (*(*url)++ != ']') {
LOG(ERROR, "expected ] at the end of host address");
return -1;
}
} else {
while (*data_out_ptr < out_limit
&& **url != '\0'
&& **url != '/'
&& **url != '?'
&& **url != ':') {
parsed_url->data[(*data_out_ptr)++] = *(*url)++;
}
assert(**url == '\0' || **url == '/' || **url == '?' || **url == ':');
}
if (*data_out_ptr == parsed_url->host_ptr) {
LOG(ERROR, "host part cannot be empty");
return -1;
}
parsed_url->data[(*data_out_ptr)++] = '\0';
if (!is_valid_host(&parsed_url->data[parsed_url->host_ptr])) {
return -1;
}
return 0;
}
void ListPolicy::on_down(const Host::Ptr& host) {
if (is_valid_host(host)) {
child_policy_->on_down(host);
}
}
CassHostDistance ListPolicy::distance(const Host::Ptr& host) const {
if (is_valid_host(host)) {
return child_policy_->distance(host);
}
return CASS_HOST_DISTANCE_IGNORE;
}
