Update AbstractCommandExecutor.java

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/AbstractCommandExecutor.java

@@ -339,36 +339,27 @@ public abstract class AbstractCommandExecutor {
     private void parseProcessOutput(Process process) {
         String threadLoggerInfoName = String.format(LoggerUtils.TASK_LOGGER_THREAD_NAME + "-%s", taskExecutionContext.getTaskAppId());
         ExecutorService getOutputLogService = ThreadUtils.newDaemonSingleThreadExecutor(threadLoggerInfoName + "-" + "getOutputLogService");
-        getOutputLogService.submit(new Runnable() {
-            @Override
-            public void run() {
+        getOutputLogService.submit(() -> {
             BufferedReader inReader = null;
 
             try {
                 inReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
                 String line;
+                logBuffer.add("welcome to use bigdata scheduling system...");
                 while ((line = inReader.readLine()) != null) {
-                        if (line.startsWith("${setValue(")) {
-                            varPool.append(line.substring("${setValue(".length(), line.length() - 2));
-                            varPool.append("$VarPool$");
-                        } else {
                     logBuffer.add(line);
                 }
-                    }
             } catch (Exception e) {
                 logger.error(e.getMessage(), e);
             } finally {
                 logOutputIsScuccess = true;
                 close(inReader);
             }
-            }
         });
         getOutputLogService.shutdown();
 
         ExecutorService parseProcessOutputExecutorService = ThreadUtils.newDaemonSingleThreadExecutor(threadLoggerInfoName);
-        parseProcessOutputExecutorService.submit(new Runnable() {
-            @Override
-            public void run() {
+        parseProcessOutputExecutorService.submit(() -> {
             try {
                 long lastFlushTime = System.currentTimeMillis();
                 while (logBuffer.size() > 0 || !logOutputIsScuccess) {
@@ -383,7 +374,6 @@ public abstract class AbstractCommandExecutor {
             } finally {
                 clear();
             }
-            }
         });
         parseProcessOutputExecutorService.shutdown();
     }