argeo/util/ExceptionsChain.java

   1 package org.argeo.util;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 /** Serialisable wrapper of a {@link Throwable}. */
   7 public class ExceptionsChain {
   8         private List<SystemException> exceptions = new ArrayList<>();
   9
  10         public ExceptionsChain() {
  11         }
  12
  13         public ExceptionsChain(Throwable exception) {
  14                 writeException(exception);
  15         }
  16
  17         /** recursive */
  18         protected void writeException(Throwable exception) {
  19                 SystemException systemException = new SystemException(exception);
  20                 exceptions.add(systemException);
  21                 Throwable cause = exception.getCause();
  22                 if (cause != null)
  23                         writeException(cause);
  24         }
  25
  26         public List<SystemException> getExceptions() {
  27                 return exceptions;
  28         }
  29
  30         public void setExceptions(List<SystemException> exceptions) {
  31                 this.exceptions = exceptions;
  32         }
  33
  34         /** An exception in the chain. */
  35         public static class SystemException {
  36                 private String type;
  37                 private String message;
  38                 private List<String> stackTrace;
  39
  40                 public SystemException() {
  41                 }
  42
  43                 public SystemException(Throwable exception) {
  44                         this.type = exception.getClass().getName();
  45                         this.message = exception.getMessage();
  46                         this.stackTrace = new ArrayList<>();
  47                         StackTraceElement[] elems = exception.getStackTrace();
  48                         for (int i = 0; i < elems.length; i++)
  49                                 stackTrace.add("at " + elems[i].toString());
  50                 }
  51
  52                 public String getType() {
  53                         return type;
  54                 }
  55
  56                 public void setType(String type) {
  57                         this.type = type;
  58                 }
  59
  60                 public String getMessage() {
  61                         return message;
  62                 }
  63
  64                 public void setMessage(String message) {
  65                         this.message = message;
  66                 }
  67
  68                 public List<String> getStackTrace() {
  69                         return stackTrace;
  70                 }
  71
  72                 public void setStackTrace(List<String> stackTrace) {
  73                         this.stackTrace = stackTrace;
  74                 }
  75
  76                 @Override
  77                 public String toString() {
  78                         return "System exception: " + type + ", " + message + ", " + stackTrace;
  79                 }
  80
  81         }
  82
  83         @Override
  84         public String toString() {
  85                 return exceptions.toString();
  86         }
  87 }