C++ cass_future_error_code函数代码示例

CassError CassandraFS::create_file(const char* path, mode_t mode) {
    CassUuid uuid;
    cass_uuid_gen_time(ctxt->uuid_gen, &uuid);
    CassError error_value = CASS_OK;

    CassFuture* result_future = NULL;

    if (S_ISDIR(mode)) {
        result_future = create_dir_entry(path, mode);
    } else {
        result_future = create_file_entry(path, &uuid, mode);
    }
    
    CassFuture* result_future2 = create_sub_entry(path);
    CassFuture* result_future3 = NULL;

    if (!S_ISDIR(mode)) {
        result_future3 = create_physical_file(&uuid);
    }

    CassError err1 = cass_future_error_code(result_future);
    CassError err2 = cass_future_error_code(result_future2);
    CassError err3 = CASS_OK; 

    if (result_future3 != NULL) {
        err3 = cass_future_error_code(result_future3);
    }

    if (err1 != CASS_OK) {
        cassandra_log_error(result_future);
        error_value = err1;
    }

    if (err2 != CASS_OK) {
        cassandra_log_error(result_future2);
        error_value = err2;
    }

    if (err3 != CASS_OK && result_future3 != NULL) {
        cassandra_log_error(result_future3);
        error_value = err3;
    }

    cass_future_free(result_future);
    cass_future_free(result_future2);
    if (result_future3 != NULL) {
        cass_future_free(result_future3);
    }

    return error_value;

}

	static void ClearDatabase(Upload& upload) {
		DatabaseSession session;

		std::string str = "delete from uploadchunks where model_id = ? and upload_id = ?";
		CassStatement* statement = cass_statement_new(str.c_str(), 2);

		cass_statement_bind_uuid(statement, 0, upload.ModelId());
		cass_statement_bind_uuid(statement, 1, upload.UploadId());

		CassFuture* future = cass_session_execute(session.Session(), statement);
		cass_future_wait(future);
		cass_statement_free(statement);

		CassError rc = cass_future_error_code(future);

		if (rc != CASS_OK) {

			std::string err = std::string("Failed to execute query: ")
				+ CassandraUtils::GetCassandraError(future);

			cass_future_free(future);

			throw err;
		}
		cass_future_free(future);
	}

CassError insert_into_basic(CassSession* session, const char* key, const Basic* basic) {
  CassError rc = CASS_OK;
  CassStatement* statement = NULL;
  CassFuture* future = NULL;

  const char* query
    = "INSERT INTO examples.basic (key, bln, flt, dbl, i32, i64) VALUES (:k, :b, :f, :d, :i32, :i64);";

  statement = cass_statement_new(query, 6);

  cass_statement_bind_string_by_name(statement, "k", key);
  cass_statement_bind_bool_by_name(statement, "b", basic->bln);
  cass_statement_bind_float_by_name(statement, "f", basic->flt);
  cass_statement_bind_double_by_name(statement, "d", basic->dbl);
  cass_statement_bind_int32_by_name(statement, "i32", basic->i32);
  cass_statement_bind_int64_by_name(statement, "i64", basic->i64);

  future = cass_session_execute(session, statement);

  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    print_error(future);
  }

  cass_future_free(future);
  cass_statement_free(statement);

  return rc;
}

void select_from_perf(CassSession* session, const char* query, const CassPrepared* prepared) {
  int i;
  CassFuture* futures[NUM_CONCURRENT_REQUESTS];

  for (i = 0; i < NUM_CONCURRENT_REQUESTS; ++i) {
    CassStatement* statement;

    if (prepared != NULL) {
      statement = cass_prepared_bind(prepared);
    } else {
      statement = cass_statement_new(query, 0);
    }

    futures[i] = cass_session_execute(session, statement);

    cass_statement_free(statement);
  }

  for (i = 0; i < NUM_CONCURRENT_REQUESTS; ++i) {
    CassFuture* future = futures[i];
    CassError rc = cass_future_error_code(future);
    if (rc != CASS_OK) {
      print_error(future);
    } else {
      const CassResult* result = cass_future_get_result(future);
      assert(cass_result_column_count(result) == 6);
      cass_result_free(result);
    }
    cass_future_free(future);
  }
}

int main() {
  CassFuture* connect_future = NULL;
  CassCluster* cluster = cass_cluster_new();
  CassSession* session = cass_session_new();
  cass_cluster_set_contact_points(cluster, "127.0.0.1");

  connect_future = cass_session_connect(session, cluster);

  if (cass_future_error_code(connect_future) == CASS_OK) {
    CassFuture* close_future = NULL;

    execute_query(session,
                  "CREATE KEYSPACE examples WITH replication = { \
                  'class': 'SimpleStrategy', 'replication_factor': '3' };");

    print_keyspace(session, "examples");

    execute_query(session,
                  "CREATE TABLE examples.schema_meta (key text, \
                  value bigint, \
                  PRIMARY KEY (key));");

    print_table(session, "examples", "schema_meta");

    /* Close the session */
    close_future = cass_session_close(session);
    cass_future_wait(close_future);
    cass_future_free(close_future);
  } else {

CassError insert_into_basic(CassSession* session, const char* key, const Basic* basic) {
  CassError rc = CASS_OK;
  CassStatement* statement = NULL;
  CassFuture* future = NULL;
  const char* query = "INSERT INTO examples.basic (key, bln, flt, dbl, i32, i64) VALUES (?, ?, ?, ?, ?, ?);";

  statement = cass_statement_new(query, 6);

  cass_statement_bind_string(statement, 0, key);
  cass_statement_bind_bool(statement, 1, basic->bln);
  cass_statement_bind_float(statement, 2, basic->flt);
  cass_statement_bind_double(statement, 3, basic->dbl);
  cass_statement_bind_int32(statement, 4, basic->i32);
  cass_statement_bind_int64(statement, 5, basic->i64);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    print_error(future);
  }

  cass_future_free(future);
  cass_statement_free(statement);

  return rc;
}

    bool select_task(const std::string& query, CassConsistency consistency, int num_iterations) {
        bool is_successful = true;

        test_utils::CassStatementPtr statement(cass_statement_new(query.c_str(), 0));
        cass_statement_set_consistency(statement.get(), consistency);
        for (int i = 0; i < num_iterations; ++i) {
            test_utils::CassFuturePtr future(cass_session_execute(session, statement.get()));
            cass_future_wait(future.get());

            CassError code = cass_future_error_code(future.get());
            if (code != CASS_OK
                    && code != CASS_ERROR_LIB_REQUEST_TIMED_OUT
                    && code != CASS_ERROR_SERVER_READ_TIMEOUT) { // Timeout is okay
                CassString message;
                cass_future_error_message(future.get(), &message.data, &message.length);
                fprintf(stderr, "Error occurred during select '%.*s'\n", static_cast<int>(message.length), message.data);
                is_successful = false;
            }

            if (code == CASS_OK) {
                test_utils::CassResultPtr result(cass_future_get_result(future.get()));
                if (cass_result_row_count(result.get()) == 0) {
                    fprintf(stderr, "No rows returned from query\n");
                    is_successful = false;
                }
            }
        }

        return is_successful;
    }

CassError insert_into(CassSession* session, const char* key) {
  CassError rc = CASS_OK;
  CassStatement* statement = NULL;
  CassFuture* future = NULL;
  cass_uint32_t d;
  cass_int64_t t;
  const char* query = "INSERT INTO examples.date_time (key, d, t) VALUES (?, ?, ?);";
  time_t now = time(NULL);

  d = cass_date_from_epoch(now);
  t = cass_time_from_epoch(now);

  statement = cass_statement_new(query, 3);

  cass_statement_bind_string(statement, 0, key);
  cass_statement_bind_uint32(statement, 1, d);
  cass_statement_bind_int64(statement, 2, t);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    print_error(future);
  }

  cass_future_free(future);
  cass_statement_free(statement);

  return rc;
}

const CassResult* Connection::execute(CassStatement* statement)
{
	this->log("debug", "Connection::execute");

	CassFuture* result = cass_session_execute(this->_session, statement);
	CassError error = cass_future_error_code(result);

	if (error != CASS_OK) {		
		CassString message = cass_future_error_message(result);
		cass_future_free(result);

		std::ostringstream out;
		out << cass_error_desc(error) << ": " << message.data;

		this->log("error", out.str());
		throw Php::Exception(out.str());
		return nullptr;
	}

	const CassResult* res = cass_future_get_result(result);

	if (res == nullptr) {
		throw Php::Exception("Error executing query, result is null");
	}

	cass_future_free(result);

	return res;
}

  bool execute_insert(CassSession* session, const std::string& table_name) {
    std::string query = str(boost::format("INSERT INTO %s (id, event_time, text_sample) VALUES (?, ?, ?)") % table_name);
    test_utils::CassStatementPtr statement(cass_statement_new(query.c_str(), 3));

    // Determine if bound parameters can be used based on C* version
    if (version.major == 1) {
      test_utils::CassPreparedPtr prepared = test_utils::prepare(session, query.c_str());
      statement = test_utils::CassStatementPtr(cass_prepared_bind(prepared.get()));
    }

    boost::chrono::system_clock::time_point now(boost::chrono::system_clock::now());
    boost::chrono::milliseconds event_time(boost::chrono::duration_cast<boost::chrono::milliseconds>(now.time_since_epoch()));
    std::string text_sample(test_utils::string_from_time_point(now));

    cass_statement_bind_uuid(statement.get(), 0, test_utils::generate_time_uuid(uuid_gen));
    cass_statement_bind_int64(statement.get(), 1, event_time.count());
    cass_statement_bind_string(statement.get(), 2, text_sample.c_str());

    test_utils::CassFuturePtr future(cass_session_execute(session, statement.get()));
    cass_future_wait(future.get());
    CassError code = cass_future_error_code(future.get());
    if (code != CASS_OK && code != CASS_ERROR_LIB_REQUEST_TIMED_OUT) { // Timeout is okay
      CassString message;
      cass_future_error_message(future.get(), &message.data, &message.length);
      fprintf(stderr, "Error occurred during insert '%.*s'\n", static_cast<int>(message.length), message.data);
      return false;
    }

    return true;
  }

CassError insert_into_collections(CassSession* session, const char* key, const char* items[]) {
  CassError rc = CASS_OK;
  CassStatement* statement = NULL;
  CassFuture* future = NULL;
  CassCollection* collection = NULL;
  const char** item = NULL;
  const char* query = "INSERT INTO examples.collections (key, items) VALUES (?, ?);";

  statement = cass_statement_new(query, 2);

  cass_statement_bind_string(statement, 0, key);

  collection = cass_collection_new(CASS_COLLECTION_TYPE_SET, 2);
  for (item = items; *item; item++) {
    cass_collection_append_string(collection, *item);
  }
  cass_statement_bind_collection(statement, 1, collection);
  cass_collection_free(collection);

  future = cass_session_execute(session, statement);
  cass_future_wait(future);

  rc = cass_future_error_code(future);
  if (rc != CASS_OK) {
    print_error(future);
  }

  cass_future_free(future);
  cass_statement_free(statement);

  return rc;
}

static int execute(CassSession* session, char* query, int ignore_error)
{

    CassStatement* stmt = cass_statement_new(query, 0);

    CassFuture* future = cass_session_execute(session, stmt);

    cass_statement_free(stmt);

    CassError rc = cass_future_error_code(future);
 
    if (rc != CASS_OK) {
	if (ignore_error) {
	    cass_future_free(future);
	    return 0;
	}
	
	fprintf(stderr, "Cassandra error: %s\n", cass_error_desc(rc));
	cass_future_free(future);
	return -1;
    }

    cass_future_free(future);

    return 0;
    
}

void DbCassandra::Initialize( const std::string &configPath )
{
    ParseConfig( configPath );
    const std::string remotes = config_.get<std::string>( "remotes" );

    db_ = std::make_shared<DbConnection>();

    auto cluster = cass_cluster_new();
    db_->SetCluster( cluster );
    auto session = cass_session_new();
    db_->SetSession( session );

    cass_cluster_set_contact_points( cluster, remotes.c_str() );

    CassFuture *connect_future = cass_session_connect( session, cluster );
    const CassError err = cass_future_error_code( connect_future );
    cass_future_free( connect_future );
    if ( err != CASS_OK )
        throw std::logic_error( cass_error_desc( err ) );

    const CassPrepared *prepared = nullptr;
    if ( PrepareQuery( session, "INSERT INTO prun.jobs (job_id, job_descr) VALUES (?, ?);", reinterpret_cast<const CassPrepared**>( &prepared ) ) != CASS_OK )
        throw std::logic_error( cass_error_desc( err ) );
    db_->SetPreparedInsert( prepared );

    if ( PrepareQuery( session, "DELETE FROM prun.jobs WHERE job_id = ?;", reinterpret_cast<const CassPrepared**>( &prepared ) ) != CASS_OK )
        throw std::logic_error( cass_error_desc( err ) );
    db_->SetPreparedDelete( prepared );
}

void on_select(CassFuture* future, void* data) {
  CassError code = cass_future_error_code(future);
  if (code != CASS_OK) {
    print_error(future);
  } else {
    const CassResult* result = cass_future_get_result(future);
    CassIterator* iterator = cass_iterator_from_result(result);
    while (cass_iterator_next(iterator)) {
      CassUuid key;
      char key_str[CASS_UUID_STRING_LENGTH];
      cass_uint64_t value = 0;
      const CassRow* row = cass_iterator_get_row(iterator);

      cass_value_get_uuid(cass_row_get_column(row, 0), &key);

      cass_uuid_string(key, key_str);
      cass_value_get_int64(cass_row_get_column(row, 1), (cass_int64_t*)&value);

      printf("%s, %llu\n", key_str, (unsigned long long)value);
    }
    cass_iterator_free(iterator);
    cass_result_free(result);
  }

  signal_exit((CassSession*)data);
}

void on_create_table(CassFuture* future, void* data) {
  const char* insert_query = "INSERT INTO callbacks (key, value) "
                             "VALUES (?, ?)";
  CassUuid key;
  CassStatement* statement = NULL;
  CassFuture* insert_future = NULL;

  CassError code = cass_future_error_code(future);
  if (code != CASS_OK) {
    print_error(future);
  }

  statement = cass_statement_new(insert_query, 2);

  cass_uuid_gen_time(uuid_gen, &key);
  cass_statement_bind_uuid(statement, 0, key);
  cass_statement_bind_int64(statement, 1, cass_uuid_timestamp(key));

  insert_future = cass_session_execute((CassSession*)data, statement);

  cass_future_set_callback(insert_future, on_insert, data);

  cass_statement_free(statement);
  cass_future_free(insert_future);
}