water.DException Maven / Gradle / Ivy

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package water;


/**  A Distributed Exception - an exception originally thrown on one node
 *  and passed to another.
 */
public class DException extends Iced {
  final H2ONode _h2o;           // Original throwing node
  final String _exClass;        // Structural breakdown of the original exception
  final String _throwerClass;   // Class of thrower (probably subclass of MRTask)
  final DException _cause;
  final String _msg;
  final Stk[] _stk;

  DException( Throwable ex, Class thrower_clz ) {
    _h2o = H2O.SELF;
    Throwable cex = ex.getCause();
    while( ex instanceof DistributedException && cex != null )
      { ex = cex; cex = ex.getCause(); }
    _throwerClass = thrower_clz.toString();
    _exClass = ex.getClass().toString();
    _cause = cex==null ? null : new DException(cex,thrower_clz);
    _msg = ex.getMessage();
    StackTraceElement stk[] = ex.getStackTrace();
    _stk = new Stk[stk.length];
    for( int i=0; i