public void close()

in src/main/java/com/aliyun/ha3engine/jdbc/Ha3Connection.java [158:180]

• 21 lines of code
• 4 McCabe index (conditional complexity)

    public void close() throws SQLException {
        if (isClosed()) {
            return;
        }
        synchronized (this) {
            statements.clear();
            //如果是共用单例client
            try {
                singletonLock.lock();
                CloudClientHolder cloudClientHolder = cloudClientHolders.get(getClientKey());
                cloudClientHolder.refDec();
                //如果client的持有者都close,对于同一个客户端保留最后的一个，防止重复创建耗费资源
                if (ha3Config.isEnableDetailLog()) {
                    logger.warn("a connection close, key:{}, ref:{}", getClientKey(), cloudClientHolder.refCount());
                }
            } catch (Exception e) {
                logger.error("close ha3 cloud client connection error.", e);
            } finally {
                singletonLock.unlock();
            }
            this.active = false;
        }
    }