/**
* Project: dubbo.core.service.server-1.0.5-SNAPSHOT
*
* File Created at 2009-12-27
* $Id: StatusManager.java 181192 2012-06-21 05:05:47Z tony.chenl $
*
* Copyright 2008 Alibaba.com Croporation Limited.
* All rights reserved.
*
* This software is the confidential and proprietary information of
* Alibaba Company. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Alibaba.com.
*/
package com.alibaba.dubbo.registry.common;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import com.alibaba.dubbo.common.status.Status;
import com.alibaba.dubbo.common.status.Status.Level;
import com.alibaba.dubbo.common.status.StatusChecker;
/**
* StatusManager
*
* @author william.liangf
*/
public class StatusManager {
private static final StatusManager INSTANCE = new StatusManager();
public static StatusManager getInstance() {
return INSTANCE;
}
private StatusManager() {}
private final Map<String, StatusChecker> statusHandlers = new ConcurrentHashMap<String, StatusChecker>();
public void addStatusHandler(String name, StatusChecker statusHandler) {
this.statusHandlers.put(name, statusHandler);
}
public void addStatusHandlers(Map<String, StatusChecker> statusHandlers) {
this.statusHandlers.putAll(statusHandlers);
}
public void addStatusHandlers(Collection<StatusChecker> statusHandlers) {
for (StatusChecker statusChecker : statusHandlers) {
String name = statusChecker.getClass().getSimpleName();
if (name.endsWith(StatusChecker.class.getSimpleName())) {
name = name.substring(0, name.length() - StatusChecker.class.getSimpleName().length());
}
this.statusHandlers.put(name, statusChecker);
}
}
public void removeStatusHandler(String name) {
this.statusHandlers.remove(name);
}
public void clearStatusHandlers() {
this.statusHandlers.clear();
}
public Map<String, Status> getStatusList() {
return getStatusList(null);
}
/**
* 过滤不需要汇总页面的监控项
*/
public Map<String, Status> getStatusList(String[] excludes) {
Map<String, Status> statuses = new HashMap<String, Status>();
Map<String, StatusChecker> temp = new HashMap<String, StatusChecker>();
temp.putAll(statusHandlers);
if(excludes != null&&excludes.length>0){
for(String exclude : excludes){
temp.remove(exclude);
}
}
for (Map.Entry<String, StatusChecker> entry : temp.entrySet()) {
statuses.put(entry.getKey(), entry.getValue().check());
}
return statuses;
}
public static Status getStatusSummary(Map<String, Status> statusList) {
return getSummaryStatus(statusList);
}
public static Status getSummaryStatus(Map<String, Status> statuses) {
Level level = Level.OK;
StringBuilder msg = new StringBuilder();
for (Map.Entry<String, Status> entry : statuses.entrySet()) {
String key = entry.getKey();
Status status = entry.getValue();
Level l = status.getLevel();
if (Level.ERROR.equals(l)) {
level = Level.ERROR;
if (msg.length() > 0) {
msg.append(",");
}
msg.append(key);
} else if (Level.WARN.equals(l)) {
if(! Level.ERROR.equals(level)) {
level = Level.WARN;
}
if (msg.length() > 0) {
msg.append(",");
}
msg.append(key);
}
}
return new Status(level, msg.toString());
}
}