package com.bigdata.service.ndx;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.Collections;
import java.util.List;
/**
* Exposes a linked list of retry exceptions leading to the failure of an
* {@link AbstractDataServiceProcedureTask}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class ClientException extends RuntimeException {
/**
*
*/
private static final long serialVersionUID = 7802533953100817726L;
private List<Throwable> causes;
/**
* The list of causes, one per failed attempt.
*
* @return
*
* @see #getCause()
*/
@SuppressWarnings("unchecked")
public List<Throwable> getCauses() {
if (causes == null)
return Collections.EMPTY_LIST;
return causes;
}
/**
* The final exception thrown which caused the task to fail. Normally
* this will indicate that the retry count has been exceeded and
* {@link #getCauses()} will report the underlying problem(s) which the
* task encountered.
*
* @see #getCauses()
*/
public Throwable getCause() {
return super.getCause();
}
// /**
// *
// */
// public ClientException() {
// super();
// }
/**
* @param msg
* @param cause
*/
public ClientException(String msg, Throwable cause) {
this(msg,cause,null);
}
/**
* @param msg
* @param cause
*/
public ClientException(String msg, Throwable cause, List<Throwable> causes) {
super(msg
+ (causes == null ? "" : ", with " + causes.size() + " causes="
+ causes), cause);
this.causes = causes;
}
/**
* @param msg
*/
public ClientException(String msg, List<Throwable> causes) {
super(msg
+ (causes == null ? "" : ", with " + causes.size() + " causes="
+ causes));
this.causes = causes;
}
// /**
// * @param cause
// */
// public ClientException(Throwable cause, List<Throwable> causes) {
//
// super((causes==null?"":", causes="+causes),cause);
//
// this.causes = causes;
//
// }
public void printStackTrace() {
super.printStackTrace();
int i = 0;
for(final Throwable t : getCauses() ) {
System.err.println("cause#" + i);
t.printStackTrace();
i++;
}
}
public void printStackTrace(PrintStream s) {
super.printStackTrace(s);
int i = 0;
for(final Throwable t : getCauses() ) {
s.println("cause#" + i);
t.printStackTrace(s);
i++;
}
}
public void printStackTrace(PrintWriter w) {
super.printStackTrace(w);
int i = 0;
for(final Throwable t : getCauses() ) {
w.println("cause#" + i);
t.printStackTrace(w);
i++;
}
}
}