/* | |
* Copyright 1999-2011 Alibaba Group. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package com.alibaba.dubbo.config.spring.status; | |
import java.lang.reflect.Method; | |
import org.springframework.context.ApplicationContext; | |
import org.springframework.context.Lifecycle; | |
import com.alibaba.dubbo.common.Extension; | |
import com.alibaba.dubbo.common.logger.Logger; | |
import com.alibaba.dubbo.common.logger.LoggerFactory; | |
import com.alibaba.dubbo.common.status.Status; | |
import com.alibaba.dubbo.common.status.StatusChecker; | |
import com.alibaba.dubbo.config.spring.ServiceBean; | |
/** | |
* SpringStatusChecker | |
* | |
* @author william.liangf | |
*/ | |
@Extension("spring") | |
public class SpringStatusChecker implements StatusChecker { | |
private static final Logger logger = LoggerFactory.getLogger(SpringStatusChecker.class); | |
public Status check() { | |
ApplicationContext context = ServiceBean.getSpringContext(); | |
if (context == null) { | |
return new Status(Status.Level.UNKNOWN); | |
} | |
Status.Level level = Status.Level.OK; | |
if (context instanceof Lifecycle) { | |
if (((Lifecycle)context).isRunning()) { | |
level = Status.Level.OK; | |
} else { | |
level = Status.Level.ERROR; | |
} | |
} else { | |
level = Status.Level.UNKNOWN; | |
} | |
StringBuilder buf = new StringBuilder(); | |
try { | |
Class<?> cls = context.getClass(); | |
Method method = null; | |
while (cls != null && method == null) { | |
try { | |
method = cls.getDeclaredMethod("getConfigLocations", new Class<?>[0]); | |
} catch (NoSuchMethodException t) { | |
cls = cls.getSuperclass(); | |
} | |
} | |
if (method != null) { | |
if (! method.isAccessible()) { | |
method.setAccessible(true); | |
} | |
String[] configs = (String[]) method.invoke(context, new Object[0]); | |
if (configs != null && configs.length > 0) { | |
for (String config : configs) { | |
if (buf.length() > 0) { | |
buf.append(","); | |
} | |
buf.append(config); | |
} | |
} | |
} | |
} catch (Throwable t) { | |
logger.warn(t.getMessage(), t); | |
} | |
return new Status(level, buf.toString()); | |
} | |
} |