void init_thrift_connection_pool(unsigned int max_client, char* meta_server_address, int meta_server_port, char* content_server_address, int content_server_port) {
if (client_queue.size() > 0) return;
for (unsigned int i = 0; i < max_client; i++) {
// init a client
photodb_client *client = new photodb_client;
boost::shared_ptr<TTransport> content_socket(new TSocket(content_server_address, content_server_port));
boost::shared_ptr<TTransport> content_transport(new TFramedTransport(content_socket));
boost::shared_ptr<TProtocol> content_protocol(new TBinaryProtocol(content_transport));
try {
content_transport->open();
PhotoDBClient *client_content = new PhotoDBClient(content_protocol);
boost::shared_ptr<TTransport> metadata_socket(new TSocket(meta_server_address, meta_server_port));
boost::shared_ptr<TTransport> metadata_transport(new TFramedTransport(metadata_socket));
boost::shared_ptr<TProtocol> metadata_protocol(new TBinaryProtocol(metadata_transport));
try {
//cout << i << endl;
metadata_transport->open();
PhotoDBClient *client_metadata = new PhotoDBClient(metadata_protocol);
client->content = client_content;
client->metadata = client_metadata;
// Put to queue
client_queue.put(*client, 1, 0);
} catch (TException& tx) {
cout << "Can not Open meta PORT number: " << meta_server_port << endl;
cout << "Can not Open meta host : " << meta_server_address << endl;
cout << "ERROR OPEN: " << tx.what() << endl;
}
} catch (TException& tx) {
cout << "Can not Open content PORT number: " << content_server_port << endl;
cout << "Can not Open meta host : " << content_server_address << endl;
cout << "ERROR OPEN: " << tx.what() << endl;
}
}
}
return_value *kv_up_get(unsigned long key_get, unsigned long size) {
try {
return_value *value_return = new return_value;
photodb_client *client = new photodb_client;
// wait 2 seconds
client_queue.pop(*client, 1, 2);
// get metadata
MetaValueResult metadata_result;
try {
client->metadata->getMeta(metadata_result, (long int) key_get); // Should check error
if (metadata_result.error != 0) {
client_queue.put(*client, 1, 0);
delete value_return;
return NULL;
}
} catch (TException& tx) {
cout << "ERROR GET META: " << tx.what() << endl;
client_queue.put(*client, 1, 0);
delete value_return;
return NULL;
}
// get content of image
ImgValueResult content_result;
try {
client->content->getImg(content_result, (long int) key_get, (int) size);
if (content_result.error != 0) {
client_queue.put(*client, 1, 0);
delete value_return;
return NULL;
}
} catch (TException& tx) {
cout << "ERROR GET META: " << tx.what() << endl;
client_queue.put(*client, 1, 0);
delete value_return;
return NULL;
}
client_queue.put(*client, 1, 0);
char *writable_content = new char[content_result.value.img.size() + 1];
std::copy(content_result.value.img.begin(), content_result.value.img.end(), writable_content);
writable_content[content_result.value.img.size() + 1] = '\0';
// Prepare date to return
value_return->content = writable_content;
value_return->size = content_result.value.img.size();
char *writable_etag = new char[metadata_result.value.etag.size() + 1];
std::copy(metadata_result.value.etag.begin(), metadata_result.value.etag.end(), writable_etag);
writable_etag[metadata_result.value.etag.size() + 1] = '\0';
// Prepare etag to return
value_return->etag = writable_etag;
value_return->etag_size = metadata_result.value.etag.size();
char *writable_contentType = new char[metadata_result.value.contentType.size() + 1];
std::copy(metadata_result.value.contentType.begin(), metadata_result.value.contentType.end(), writable_contentType);
writable_contentType[metadata_result.value.contentType.size()] = '\0';
value_return->contentType = writable_contentType;
value_return->content_type_size = metadata_result.value.contentType.size();
return value_return;
} catch (const exception& e) {
cerr << "EXCEPTION: " << e.what() << endl;
return NULL;
}
}