Examples with MemcachedException net.rubyeye.xmemcached.exception.MemcachedException used on opensource projects

Example 6 with MemcachedException

use of net.rubyeye.xmemcached.exception.MemcachedException in project dubbo by alibaba.

the class MemcachedProtocol method refer.

public <T> Invoker<T> refer(final Class<T> type, final URL url) throws RpcException {
    try {
        String address = url.getAddress();
        String backup = url.getParameter(Constants.BACKUP_KEY);
        if (backup != null && backup.length() > 0) {
            address += "," + backup;
        }
        MemcachedClientBuilder builder = new XMemcachedClientBuilder(AddrUtil.getAddresses(address));
        final MemcachedClient memcachedClient = builder.build();
        final int expiry = url.getParameter("expiry", 0);
        final String get = url.getParameter("get", "get");
        final String set = url.getParameter("set", Map.class.equals(type) ? "put" : "set");
        final String delete = url.getParameter("delete", Map.class.equals(type) ? "remove" : "delete");
        return new AbstractInvoker<T>(type, url) {

            protected Result doInvoke(Invocation invocation) throws Throwable {
                try {
                    if (get.equals(invocation.getMethodName())) {
                        if (invocation.getArguments().length != 1) {
                            throw new IllegalArgumentException("The memcached get method arguments mismatch, must only one arguments. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url);
                        }
                        return new RpcResult(memcachedClient.get(String.valueOf(invocation.getArguments()[0])));
                    } else if (set.equals(invocation.getMethodName())) {
                        if (invocation.getArguments().length != 2) {
                            throw new IllegalArgumentException("The memcached set method arguments mismatch, must be two arguments. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url);
                        }
                        memcachedClient.set(String.valueOf(invocation.getArguments()[0]), expiry, invocation.getArguments()[1]);
                        return new RpcResult();
                    } else if (delete.equals(invocation.getMethodName())) {
                        if (invocation.getArguments().length != 1) {
                            throw new IllegalArgumentException("The memcached delete method arguments mismatch, must only one arguments. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url);
                        }
                        memcachedClient.delete(String.valueOf(invocation.getArguments()[0]));
                        return new RpcResult();
                    } else {
                        throw new UnsupportedOperationException("Unsupported method " + invocation.getMethodName() + " in memcached service.");
                    }
                } catch (Throwable t) {
                    RpcException re = new RpcException("Failed to invoke memcached service method. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url + ", cause: " + t.getMessage(), t);
                    if (t instanceof TimeoutException || t instanceof SocketTimeoutException) {
                        re.setCode(RpcException.TIMEOUT_EXCEPTION);
                    } else if (t instanceof MemcachedException || t instanceof IOException) {
                        re.setCode(RpcException.NETWORK_EXCEPTION);
                    }
                    throw re;
                }
            }

            public void destroy() {
                super.destroy();
                try {
                    memcachedClient.shutdown();
                } catch (Throwable e) {
                    logger.warn(e.getMessage(), e);
                }
            }
        };
    } catch (Throwable t) {
        throw new RpcException("Failed to refer memcached service. interface: " + type.getName() + ", url: " + url + ", cause: " + t.getMessage(), t);
    }
}