public void afterPropertiesSet() throws Exception {
// 获取一下nid变量
String nid = System.getProperty(NID_NAME);
if (StringUtils.isEmpty(nid)) {
throw new ConfigException("nid is not set!");
}
this.nid = Long.valueOf(nid);
channelMapping = new MapMaker().makeComputingMap(new Function<Long, Long>() {
public Long apply(Long pipelineId) {
// 处理下pipline -> channel映射关系不存在的情况
FindChannelEvent event = new FindChannelEvent();
event.setPipelineId(pipelineId);
try {
Object obj = nodeCommmunicationClient.callManager(event);
if (obj != null && obj instanceof Channel) {
Channel channel = (Channel) obj;
updateMapping(channel, pipelineId);// 排除下自己
channelCache.put(channel.getId(), channel);// 更新下channelCache
return channel.getId();
}
} catch (Exception e) {
logger.error("call_manager_error", event.toString(), e);
}
throw new ConfigException("No Such Channel by pipelineId[" + pipelineId + "]");
}
});
nodeCache = new RefreshMemoryMirror<Long, Node>(timeout, new ComputeFunction<Long, Node>() {
public Node apply(Long key, Node oldValue) {
FindNodeEvent event = new FindNodeEvent();
event.setNid(key);
try {
Object obj = nodeCommmunicationClient.callManager(event);
if (obj != null && obj instanceof Node) {
return (Node) obj;
} else {
throw new ConfigException("No Such Node by id[" + key + "]");
}
} catch (Exception e) {
logger.error("call_manager_error", event.toString(), e);
}
// 其他情况直接返回内存中的旧值
return oldValue;
}
});
channelCache = new RefreshMemoryMirror<Long, Channel>(timeout, new ComputeFunction<Long, Channel>() {
public Channel apply(Long key, Channel oldValue) {
FindChannelEvent event = new FindChannelEvent();
event.setChannelId(key);
try {
Object obj = nodeCommmunicationClient.callManager(event);
if (obj != null && obj instanceof Channel) {
updateMapping((Channel) obj, null);// 排除下自己
return (Channel) obj;
} else {
throw new ConfigException("No Such Channel by pipelineId[" + key + "]");
}
} catch (Exception e) {
logger.error("call_manager_error", event.toString(), e);
}
// 其他情况直接返回内存中的旧值