Examples with DomainObjectChangedException org.jaffa.exceptions.DomainObjectChangedException used on opensource projects

Example 6 with DomainObjectChangedException

use of org.jaffa.exceptions.DomainObjectChangedException in project jaffa-framework by jaffa-projects.

the class TransformerUtils method domainObjectChangedTest.

/**
 * Performs the dirty-read check to ensure that the underlying record in the database hasn't
 * been changed by another user, while the current user has been trying to modify it.
 */
private static void domainObjectChangedTest(String path, GraphDataObject source, GraphMapping mapping, IPersistent domainObject) throws InstantiationException, IllegalAccessException, InvocationTargetException, FrameworkException, ApplicationExceptions {
    if (source.getPerformDirtyReadCheck() != null && source.getPerformDirtyReadCheck() && mapping.getDirtyReadDataFieldName() != null) {
        if (log.isDebugEnabled())
            log.debug("Performing dirty-read check for " + domainObject);
        Object lastKnownValue = getProperty(mapping.getDataFieldDescriptor(mapping.getDirtyReadDataFieldName()), source);
        Object currentValue = getProperty(mapping.getDomainFieldDescriptor(mapping.getDirtyReadDataFieldName()), domainObject);
        if (lastKnownValue == null ? currentValue != null : !lastKnownValue.equals(currentValue)) {
            if (log.isDebugEnabled())
                log.debug("Dirty-read check failed: lastKnownValue='" + lastKnownValue + "', currentValue='" + currentValue + '\'');
            if (!domainObject.isDatabaseOccurence()) {
                if (log.isDebugEnabled())
                    log.debug("Dirty-read check failed: " + domainObject + " may have been removed.");
                throw new ApplicationExceptions(new ApplicationExceptionWithContext(path, new ApplicationException(DomainObjectChangedException.OBJECT_REMOVED, null, null)));
            } else {
                String[] errorParamNames = mapping.getDirtyReadErrorParams();
                Object[] errorParamValues = new Object[errorParamNames.length];
                try {
                    for (int i = 0; i < errorParamNames.length; i++) errorParamValues[i] = BeanHelper.getField(domainObject, errorParamNames[i]);
                } catch (Exception e) {
                    log.warn("Error in creation of the argument array to pass to the DomainObjectChangedException from the list: " + Arrays.toString(mapping.getDirtyReadErrorParams()), e);
                }
                throw new ApplicationExceptions(new ApplicationExceptionWithContext(path, new DomainObjectChangedException(mapping.getDirtyReadErrorLabelToken(), errorParamValues, null)));
            }
        } else {
            if (log.isDebugEnabled())
                log.debug("Dirty-read check succeeded. Both lastKnownValue and currentValue equal '" + currentValue + '\'');
        }
    }
}