Improve exception print (wgzhao#1038)

core/src/main/java/com/wgzhao/addax/core/Engine.java

@@ -25,6 +25,7 @@
 import com.wgzhao.addax.core.job.JobContainer;
 import com.wgzhao.addax.core.util.ConfigParser;
 import com.wgzhao.addax.core.util.ConfigurationValidate;
+import com.wgzhao.addax.core.util.ExceptionTracker;
 import com.wgzhao.addax.core.util.container.LoadUtil;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.DefaultParser;
@@ -134,12 +135,10 @@ public static void main(String[] args) {
             LOG.error("need a job file");
             System.exit(1);
         }
-
         try {
             Engine.entry(args);
         } catch (Throwable e) {
-            e.printStackTrace();
-            LOG.error(e.toString());
+            LOG.error(ExceptionTracker.trace(e));
             System.exit(2);
         }
         System.exit(0);

core/src/main/java/com/wgzhao/addax/core/util/ExceptionTracker.java

@@ -0,0 +1,16 @@
+package com.wgzhao.addax.core.util;
+
+public class ExceptionTracker
+{
+    public static final  int STRING_BUFFER = 4096;
+
+    public static String trace(Throwable e) {
+        StringBuilder sb = new StringBuilder(STRING_BUFFER);
+        sb.append(e.toString()).append("\n");
+        StackTraceElement[] stackTrace = e.getStackTrace();
+        for (StackTraceElement stackTraceElement : stackTrace) {
+            sb.append("\t").append(stackTraceElement).append("\n");
+        }
+        return sb.toString();
+    }
+}