public void onError()

in src/main/java/org/apache/commons/scxml2/env/SimpleErrorReporter.java [78:141]
55 lines of code
16 McCabe index (conditional complexity)

    public void onError(final String errorCode, final String errDetail,
            final Object errCtx) {
        //Note: the if-then-else below is based on the actual usage
        // (codebase search), it has to be kept up-to-date as the code changes
        final String errCode = errorCode.intern();
        final StringBuilder msg = new StringBuilder();
        msg.append(errCode).append(" (");
        msg.append(errDetail).append("): ");
        if (errCode == ErrorConstants.NO_INITIAL) {
            if (errCtx instanceof SCXML) {
                //determineInitialStates
                msg.append("<SCXML>");
            } else if (errCtx instanceof State) {
                //determineInitialStates
                //determineTargetStates
                msg.append("State ").append(LogUtils.getTTPath((State) errCtx));
            }
        } else if (errCode == ErrorConstants.UNKNOWN_ACTION) {
            //executeActionList
            msg.append("Action: ").append(errCtx.getClass().getName());
        } else if (errCode == ErrorConstants.ILLEGAL_CONFIG) {
            //isLegalConfig
            if (errCtx instanceof Map.Entry) { //unchecked cast below
                final Map.Entry<EnterableState, Set<EnterableState>> badConfigMap =
                    (Map.Entry<EnterableState, Set<EnterableState>>) errCtx;
                final EnterableState es = badConfigMap.getKey();
                final Set<EnterableState> vals = badConfigMap.getValue();
                msg.append(LogUtils.getTTPath(es)).append(" : [");
                for (final Iterator<EnterableState> i = vals.iterator(); i.hasNext();) {
                    final EnterableState ex = i.next();
                    msg.append(LogUtils.getTTPath(ex));
                    if (i.hasNext()) { // reason for iterator usage
                        msg.append(", ");
                    }
                }
                msg.append(']');
            } else if (errCtx instanceof Set) { //unchecked cast below
                final Set<EnterableState> vals = (Set<EnterableState>) errCtx;
                msg.append("<SCXML> : [");
                for (final Iterator<EnterableState> i = vals.iterator(); i.hasNext();) {
                    final EnterableState ex = i.next();
                    msg.append(LogUtils.getTTPath(ex));
                    if (i.hasNext()) {
                        msg.append(", ");
                    }
                }
                msg.append(']');
            }
        } else if (errCode == ErrorConstants.EXPRESSION_ERROR) {
            if (errCtx instanceof Executable) {
                final TransitionTarget parent = ((Executable) errCtx).getParent();
                msg.append("Expression error inside ").append(LogUtils.getTTPath(parent));
            }
            else if (errCtx instanceof Data) {
                // Data expression error
                msg.append("Expression error for data element with id ").append(((Data) errCtx).getId());
            }
            else if (errCtx instanceof SCXML) {
                // Global Script
                msg.append("Expression error inside the global script");
            }
        }
        handleErrorMessage(errorCode, errDetail, errCtx, msg);
    }