public static Job createJob(
JobContext jobContext,
JobBean jobBean,
JobHistory history,
String workDir,
ApplicationContext applicationContext) {
jobContext.setJobHistory(history);
jobContext.setWorkDir(workDir);
HierarchyProperties hp = jobBean.getHierarchyProperties();
if (history.getProperties() != null && !history.getProperties().isEmpty()) {
history.getLog().appendZeus("This job hava instance configs:");
for (String key : history.getProperties().keySet()) {
hp.setProperty(key, history.getProperties().get(key));
history.getLog().appendZeus(key + "=" + history.getProperties().get(key));
}
}
jobContext.setProperties(new RenderHierarchyProperties(hp));
List<Map<String, String>> resources = jobBean.getHierarchyResources();
String script = jobBean.getJobDescriptor().getScript();
/// *************************update run date 2014-09-18**************
String dateStr = history.getJobId().substring(0, 16);
System.out.println("Manual Job run date :" + dateStr);
if (dateStr != null && dateStr.length() == 16) {
script = RenderHierarchyProperties.render(script, dateStr);
System.out.println("Manual Job script :" + script);
}
/// *********************************************************
// 处理脚本中的 资源引用 语句
if (jobBean.getJobDescriptor().getJobType().equals(JobRunType.Shell)
|| jobBean.getJobDescriptor().getJobType().equals(JobRunType.Hive)) {
script = resolvScriptResource(resources, script, applicationContext);
jobBean.getJobDescriptor().setScript(script);
}
jobContext.setResources(resources);
if (dateStr != null && dateStr.length() == 16) {
script = replace(jobContext.getProperties().getAllProperties(dateStr), script);
} else {
script = replace(jobContext.getProperties().getAllProperties(), script);
}
System.out.println("Manual Job last script :" + script);
script = replaceScript(history, script);
hp.setProperty(PropertyKeys.JOB_SCRIPT, script);
/*// 添加宙斯标记属性，提供给云梯
hp.setProperty("hadoop.mapred.job.zues_id",
"zeus_job_" + history.getJobId() + "_" + history.getId());
*/
// 前置处理Job创建
List<Job> pres =
parseJobs(
jobContext,
applicationContext,
jobBean,
jobBean.getJobDescriptor().getPreProcessers(),
history,
workDir);
pres.add(0, new DownloadJob(jobContext));
// 后置处理Job创建
List<Job> posts =
parseJobs(
jobContext,
applicationContext,
jobBean,
jobBean.getJobDescriptor().getPostProcessers(),
history,
workDir);
posts.add(new ZooKeeperJob(jobContext, null, applicationContext));
// 核心处理Job创建
Job core = null;
if (jobBean.getJobDescriptor().getJobType() == JobRunType.MapReduce) {
core = new MapReduceJob(jobContext);
} else if (jobBean.getJobDescriptor().getJobType() == JobRunType.Shell) {
core = new HadoopShellJob(jobContext);
} else if (jobBean.getJobDescriptor().getJobType() == JobRunType.Hive) {
core = new HiveJob(jobContext, applicationContext);
}
Job job = new WithProcesserJob(jobContext, pres, posts, core, applicationContext);
return job;
}
@Override
public Integer run() throws IOException {
List<Job> jobs = new ArrayList<Job>();
for (Map<String, String> map : jobContext.getResources()) {
if (map.get("uri") != null) {
String name = map.get("name");
String uri = map.get("uri");
if (uri.startsWith("hdfs://")) {
jobs.add(
new DownloadHdfsFileJob(
jobContext, jobContext.getWorkDir() + File.separator + name, uri.substring(7)));
} else if (uri.startsWith("doc://")) {
String fileId = uri.substring(uri.lastIndexOf('/') + 1);
String script = map.get("zeus-doc-" + fileId);
script = RenderHierarchyProperties.render(script);
File f = new File(jobContext.getWorkDir() + File.separator + name);
if (f.exists()) {
log(name + "已存在，可能是重名或循环引用");
continue;
}
FileWriter w = null;
try {
w = new FileWriter(f);
w.write(script);
w.flush();
} catch (Exception e) {
log(e);
} finally {
if (w != null) {
w.close();
}
}
} else if (uri.startsWith("http://")) {
if (name == null || name.trim().isEmpty()) {
log("download from http error! name not specified!");
continue;
} else if (!name.endsWith(".xml") && !name.endsWith(".txt")) {
log(name + " is not allow to download");
continue;
}
HttpClient client = new HttpClient();
GetMethod getMethod = new GetMethod(uri);
int statusCode = client.executeMethod(getMethod);
if (statusCode != HttpStatus.SC_OK) {
log("download from http error! code=" + statusCode);
} else {
BufferedReader in = null;
try {
in =
new BufferedReader(
new InputStreamReader(
getMethod.getResponseBodyAsStream(), getMethod.getRequestCharSet()));
StringBuffer sb = new StringBuffer();
String inputLine = null;
while ((inputLine = in.readLine()) != null) {
sb.append(inputLine);
}
String script = sb.toString();
if (script == null || script.trim().isEmpty()) {
log(name + "为空");
continue;
}
script = RenderHierarchyProperties.render(script);
File f = new File(jobContext.getWorkDir() + File.separator + name);
if (f.exists()) {
log(name + "已存在，可能是重名或循环引用");
continue;
}
FileWriter w = null;
try {
w = new FileWriter(f);
w.write(script);
w.flush();
} catch (Exception e) {
log(e);
} finally {
if (w != null) {
w.close();
}
}
} catch (Exception e) {
log(e);
} finally {
if (in != null) {
in.close();
}
}
}
}
}
}
Integer exitCode = 0;
for (Job job : jobs) {
try {
exitCode = job.run();
} catch (Exception e) {
jobContext.getJobHistory().getLog().appendZeusException(e);
}
}
return exitCode;
}