refactor(core): 重构任务上下文与日志时间字段

- 将 XxlJobContext 中的 logDateTime 字段重命名为 jobLogTime
- 更新构造函数参数顺序并移除旧的日志时间获取方法
- 在 XxlJobHelper 中新增 getJobLogTime 方法替代原有的 getLogDateTime
- 优化日志格式化字符串拼接逻辑
- 统一代码注释风格并完善上下文管理工具类注释
- 调整 TriggerRequest 类字段分组注释以提高可读性
- 修正 JobThread 和 TriggerCallbackThread 中的日志相关调用顺序
- 设置 logger 为 final 类

xxl-job-core/src/main/java/com/xxl/job/core/context/XxlJobContext.java

@@ -27,14 +27,14 @@ public class XxlJobContext {
     // ---------------------- for log ----------------------
 
     /**
-     * job log filename
+     * job log timestamp
      */
-    private final String jobLogFileName;
-
+    private final long jobLogTime;
+    
     /**
-     * log date time
+     * job log filename
      */
-    private final long logDateTime;
+    private final String jobLogFileName;
 
     // ---------------------- for shard ----------------------
 
@@ -66,11 +66,16 @@ public class XxlJobContext {
     private String handleMsg;
 
 
-    public XxlJobContext(long jobId, String jobParam, String jobLogFileName, long logDateTime, int shardIndex, int shardTotal) {
+    public XxlJobContext(long jobId, 
+                         String jobParam,
+                         long jobLogTime,
+                         String jobLogFileName,
+                         int shardIndex, 
+                         int shardTotal) {
         this.jobId = jobId;
         this.jobParam = jobParam;
+        this.jobLogTime = jobLogTime;
         this.jobLogFileName = jobLogFileName;
-        this.logDateTime = logDateTime;
         this.shardIndex = shardIndex;
         this.shardTotal = shardTotal;
 
@@ -89,8 +94,8 @@ public class XxlJobContext {
         return jobLogFileName;
     }
 
-    public long getLogDateTime() {
-        return logDateTime;
+    public long getJobLogTime() {
+        return jobLogTime;
     }
 
     public int getShardIndex() {
@@ -119,12 +124,21 @@ public class XxlJobContext {
 
     // ---------------------- tool ----------------------
 
-    private static InheritableThreadLocal<XxlJobContext> contextHolder = new InheritableThreadLocal<XxlJobContext>(); // support for child thread of job handler)
+    /**
+     * xxl-job context store
+     */
+    private static final InheritableThreadLocal<XxlJobContext> contextHolder = new InheritableThreadLocal<XxlJobContext>(); // support for child thread of job handler)
 
+    /**
+     * set xxl-job context
+     */
     public static void setXxlJobContext(XxlJobContext xxlJobContext){
         contextHolder.set(xxlJobContext);
     }
 
+    /**
+     * get xxl-job context
+     */
     public static XxlJobContext getXxlJobContext(){
         return contextHolder.get();
     }

xxl-job-core/src/main/java/com/xxl/job/core/context/XxlJobHelper.java

@@ -51,31 +51,31 @@ public class XxlJobHelper {
     // ---------------------- for log ----------------------
 
     /**
-     * current JobLogFileName
+     * current job log time
      *
-     * @return logFileName
+     * @return logDateTime
      */
-    public static String getJobLogFileName() {
+    public static long getJobLogTime() {
         XxlJobContext xxlJobContext = XxlJobContext.getXxlJobContext();
         if (xxlJobContext == null) {
-            return null;
+            return -1;
         }
 
-        return xxlJobContext.getJobLogFileName();
+        return xxlJobContext.getJobLogTime();
     }
 
     /**
-     * current LogDateTime
+     * current job log filename
      *
-     * @return logDateTime
+     * @return logFileName
      */
-    public static long getLogDateTime() {
+    public static String getJobLogFileName() {
         XxlJobContext xxlJobContext = XxlJobContext.getXxlJobContext();
         if (xxlJobContext == null) {
-            return -1;
+            return null;
         }
 
-        return xxlJobContext.getLogDateTime();
+        return xxlJobContext.getJobLogFileName();
     }
 
     // ---------------------- for shard ----------------------
@@ -164,13 +164,11 @@ public class XxlJobHelper {
         StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
         StackTraceElement callInfo = stackTraceElements[1];*/
 
-        StringBuffer stringBuffer = new StringBuffer();
-        stringBuffer.append(DateTool.formatDateTime(new Date())).append(" ")
-                .append("["+ callInfo.getClassName() + "#" + callInfo.getMethodName() +"]").append("-")
-                .append("["+ callInfo.getLineNumber() +"]").append("-")
-                .append("["+ Thread.currentThread().getName() +"]").append(" ")
-                .append(appendLog!=null?appendLog:"");
-        String formatAppendLog = stringBuffer.toString();
+        String formatAppendLog = DateTool.formatDateTime(new Date()) + " " +
+                "[" + callInfo.getClassName() + "#" + callInfo.getMethodName() + "]" + "-" +
+                "[" + callInfo.getLineNumber() + "]" + "-" +
+                "[" + Thread.currentThread().getName() + "]" + " " +
+                (appendLog != null ? appendLog : "");
 
         // appendlog
         String logFileName = xxlJobContext.getJobLogFileName();

xxl-job-core/src/main/java/com/xxl/job/core/openapi/model/TriggerRequest.java

@@ -8,20 +8,25 @@ import java.io.Serializable;
 public class TriggerRequest implements Serializable{
     private static final long serialVersionUID = 42L;
 
+    // job base info
     private int jobId;
 
+    // job execute info
     private String executorHandler;
     private String executorParams;
     private String executorBlockStrategy;
     private int executorTimeout;
 
+    // log info
     private long logId;
     private long logDateTime;
 
+    // glue info
     private String glueType;
     private String glueSource;
     private long glueUpdatetime;
 
+    // broadcast info
     private int broadcastIndex;
     private int broadcastTotal;
 

xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java

@@ -23,7 +23,7 @@ import java.util.concurrent.*;
  * @author xuxueli 2016-1-16 19:52:47
  */
 public class JobThread extends Thread{
-	private static Logger logger = LoggerFactory.getLogger(JobThread.class);
+	private static final Logger logger = LoggerFactory.getLogger(JobThread.class);
 
 	private int jobId;
 	private IJobHandler handler;
@@ -53,9 +53,6 @@ public class JobThread extends Thread{
 
     /**
      * new trigger to queue
-     *
-     * @param triggerParam
-     * @return
      */
 	public Response<String> pushTriggerQueue(TriggerRequest triggerParam) {
         // avoid repeat
@@ -71,8 +68,6 @@ public class JobThread extends Thread{
 
     /**
      * kill job thread
-     *
-     * @param stopReason
      */
 	public void toStop(String stopReason) {
 		/**
@@ -86,7 +81,6 @@ public class JobThread extends Thread{
 
     /**
      * is running job
-     * @return
      */
     public boolean isRunningOrHasQueue() {
         return running || triggerQueue.size()>0;
@@ -121,8 +115,8 @@ public class JobThread extends Thread{
 					XxlJobContext xxlJobContext = new XxlJobContext(
 							triggerParam.getJobId(),
 							triggerParam.getExecutorParams(),
-							logFileName,
-							triggerParam.getLogDateTime(),
+                            triggerParam.getLogDateTime(),
+                            logFileName,
 							triggerParam.getBroadcastIndex(),
 							triggerParam.getBroadcastTotal());
 

xxl-job-core/src/main/java/com/xxl/job/core/thread/TriggerCallbackThread.java

@@ -207,8 +207,8 @@ public class TriggerCallbackThread {
             XxlJobContext.setXxlJobContext(new XxlJobContext(
                     -1,
                     null,
-                    logFileName,
                     -1,
+                    logFileName,
                     -1,
                     -1));
             XxlJobHelper.log(logContent);