use of com.vip.saturn.job.exception.JobInitAlarmException in project Saturn by vipshop.
the class SaturnJavaJob method createJobBusinessInstanceIfNecessary.
private void createJobBusinessInstanceIfNecessary() {
String jobClassStr = configService.getJobConfiguration().getJobClass();
if (StringUtils.isBlank(jobClassStr)) {
LogUtils.error(log, jobName, "jobClass is not set");
throw new JobInitAlarmException("jobClass is not set");
}
jobClassStr = jobClassStr.trim();
LogUtils.info(log, jobName, "start to create job business instance, jobClass is {}", jobClassStr);
if (jobBusinessInstance == null) {
ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
ClassLoader jobClassLoader = saturnExecutorService.getJobClassLoader();
Thread.currentThread().setContextClassLoader(jobClassLoader);
try {
Class<?> jobClass = jobClassLoader.loadClass(jobClassStr);
jobBusinessInstance = tryToGetSaturnBusinessInstanceFromSaturnApplication(jobClassLoader, jobClass);
if (jobBusinessInstance == null) {
try {
jobBusinessInstance = jobClass.getMethod("getObject").invoke(null);
if (jobBusinessInstance != null) {
LogUtils.info(log, jobName, "get job instance from getObject");
}
} catch (NoSuchMethodException e) {
LogUtils.info(log, jobName, "the jobClass hasn't the static getObject method, will initialize job by default no arguments constructor method");
}
}
// 业务没有重写getObject方法,BaseSaturnJob会默认返回null
if (jobBusinessInstance == null) {
jobBusinessInstance = jobClass.newInstance();
LogUtils.info(log, jobName, "get job instance from newInstance");
}
SaturnApi saturnApi = new SaturnApi(getNamespace(), executorName);
jobClass.getMethod("setSaturnApi", Object.class).invoke(jobBusinessInstance, saturnApi);
} catch (Throwable t) {
throw new JobInitAlarmException(logBusinessExceptionIfNecessary(jobName, t));
} finally {
Thread.currentThread().setContextClassLoader(oldClassLoader);
}
}
if (jobBusinessInstance == null) {
LogUtils.error(log, jobName, "job instance is null");
throw new JobInitAlarmException("job instance is null");
}
}
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