protected <T> T doExecute(ConnectionCallback<T> action, RpcRequest request) {
Assert.notNull(action, "Callback object must not be null");
Connection c = null;
ConnectionSpec auth = null;
try {
try {
request = validateRequest(request);
RpcHost host = request.getHost();
auth = createConnectionSpec(request);
logger.debug("connect {}", RpcUriUtils.sanitize(request.getURI(), auth));
c = this.connectionFactory.getConnection(host, auth);
} catch (RpcException e) {
throw getExceptionTranslator()
.translate("open", RpcUriUtils.sanitize(request.getURI(), auth), e);
}
try {
return action.doInConnection(c);
} catch (RpcException e) {
throw getExceptionTranslator()
.translate("callback", RpcUriUtils.sanitize(request.getURI(), auth), e);
}
} catch (DataAccessException e) {
logger.error("error in " + RpcUriUtils.sanitize(request.getURI(), auth), e);
throw e;
} finally {
try {
if (c != null) c.close();
} catch (RpcException e) {
throw getExceptionTranslator()
.translate("close", RpcUriUtils.sanitize(request.getURI(), auth), e);
}
}
}