private <F extends FocusType> void processFocusFocus(
LensContext<F> context,
String activityDescription,
XMLGregorianCalendar now,
Task task,
OperationResult result)
throws ObjectNotFoundException, SchemaException, ExpressionEvaluationException,
PolicyViolationException, ObjectAlreadyExistsException, CommunicationException,
ConfigurationException, SecurityViolationException {
LensFocusContext<F> focusContext = context.getFocusContext();
ObjectTemplateType objectTemplate = context.getFocusTemplate();
boolean resetOnRename = true; // This is fixed now. TODO: make it configurable
int maxIterations = 0;
IterationSpecificationType iterationSpecificationType = null;
if (objectTemplate != null) {
iterationSpecificationType = objectTemplate.getIteration();
maxIterations = LensUtil.determineMaxIterations(iterationSpecificationType);
}
int iteration = focusContext.getIteration();
String iterationToken = focusContext.getIterationToken();
boolean wasResetIterationCounter = false;
PrismObject<F> focusCurrent = focusContext.getObjectCurrent();
if (focusCurrent != null && iterationToken == null) {
Integer focusIteration = focusCurrent.asObjectable().getIteration();
if (focusIteration != null) {
iteration = focusIteration;
}
iterationToken = focusCurrent.asObjectable().getIterationToken();
}
while (true) {
ObjectTypeTemplateType objectPolicyConfigurationType =
focusContext.getObjectPolicyConfigurationType();
if (objectPolicyConfigurationType != null
&& BooleanUtils.isTrue(objectPolicyConfigurationType.isOidNameBoundMode())) {
// Generate the name now - unless it is already present
PrismObject<F> focusNew = focusContext.getObjectNew();
if (focusNew != null) {
PolyStringType focusNewName = focusNew.asObjectable().getName();
if (focusNewName == null) {
String newName = focusNew.getOid();
if (newName == null) {
newName = OidUtil.generateOid();
}
LOGGER.trace("Generating new name (bound to OID): {}", newName);
PrismObjectDefinition<F> focusDefinition = focusContext.getObjectDefinition();
PrismPropertyDefinition<PolyString> focusNameDef =
focusDefinition.findPropertyDefinition(FocusType.F_NAME);
PropertyDelta<PolyString> nameDelta =
focusNameDef.createEmptyDelta(new ItemPath(FocusType.F_NAME));
nameDelta.setValueToReplace(
new PrismPropertyValue<PolyString>(
new PolyString(newName), OriginType.USER_POLICY, null));
focusContext.swallowToSecondaryDelta(nameDelta);
focusContext.recompute();
}
}
}
ExpressionVariables variables =
Utils.getDefaultExpressionVariables(
focusContext.getObjectNew(), null, null, null, context.getSystemConfiguration());
if (iterationToken == null) {
iterationToken =
LensUtil.formatIterationToken(
context,
focusContext,
iterationSpecificationType,
iteration,
expressionFactory,
variables,
task,
result);
}
// We have to remember the token and iteration in the context.
// The context can be recomputed several times. But we always want
// to use the same iterationToken if possible. If there is a random
// part in the iterationToken expression that we need to avoid recomputing
// the token otherwise the value can change all the time (even for the same inputs).
// Storing the token in the secondary delta is not enough because secondary deltas can be
// dropped
// if the context is re-projected.
focusContext.setIteration(iteration);
focusContext.setIterationToken(iterationToken);
LOGGER.trace(
"Focus {} processing, iteration {}, token '{}'",
new Object[] {focusContext.getHumanReadableName(), iteration, iterationToken});
String conflictMessage;
if (!LensUtil.evaluateIterationCondition(
context,
focusContext,
iterationSpecificationType,
iteration,
iterationToken,
true,
expressionFactory,
variables,
task,
result)) {
conflictMessage = "pre-iteration condition was false";
LOGGER.debug(
"Skipping iteration {}, token '{}' for {} because the pre-iteration condition was false",
new Object[] {iteration, iterationToken, focusContext.getHumanReadableName()});
} else {
// INBOUND
if (consistencyChecks) context.checkConsistence();
// Loop through the account changes, apply inbound expressions
inboundProcessor.processInbound(context, now, task, result);
if (consistencyChecks) context.checkConsistence();
context.recomputeFocus();
LensUtil.traceContext(LOGGER, activityDescription, "inbound", false, context, false);
if (consistencyChecks) context.checkConsistence();
// ACTIVATION
processActivation(context, now, result);
// OBJECT TEMPLATE (before assignments)
objectTemplateProcessor.processTemplate(
context,
ObjectTemplateMappingEvaluationPhaseType.BEFORE_ASSIGNMENTS,
now,
task,
result);
// ASSIGNMENTS
assignmentProcessor.processAssignmentsProjections(context, now, task, result);
assignmentProcessor.processOrgAssignments(context, result);
context.recompute();
assignmentProcessor.checkForAssignmentConflicts(context, result);
// OBJECT TEMPLATE (after assignments)
objectTemplateProcessor.processTemplate(
context, ObjectTemplateMappingEvaluationPhaseType.AFTER_ASSIGNMENTS, now, task, result);
context.recompute();
// PASSWORD POLICY
passwordPolicyProcessor.processPasswordPolicy(focusContext, context, result);
// Processing done, check for success
if (resetOnRename && !wasResetIterationCounter && willResetIterationCounter(focusContext)) {
// Make sure this happens only the very first time during the first recompute.
// Otherwise it will always change the token (especially if the token expression has a
// random part)
// hence the focusContext.getIterationToken() == null
wasResetIterationCounter = true;
if (iteration != 0) {
iteration = 0;
iterationToken = null;
LOGGER.trace("Resetting iteration counter and token because rename was detected");
cleanupContext(focusContext);
continue;
}
}
PrismObject<F> previewObjectNew = focusContext.getObjectNew();
if (previewObjectNew == null) {
// this must be delete
} else {
// Explicitly check for name. The checker would check for this also. But checking it here
// will produce better error message
PolyStringType objectName = previewObjectNew.asObjectable().getName();
if (objectName == null || objectName.getOrig().isEmpty()) {
throw new SchemaException(
"No name in new object "
+ objectName
+ " as produced by template "
+ objectTemplate
+ " in iteration "
+ iteration
+ ", we cannot process an object without a name");
}
}
// Check if iteration constraints are OK
FocusConstraintsChecker<F> checker = new FocusConstraintsChecker<>();
checker.setPrismContext(prismContext);
checker.setContext(context);
checker.setRepositoryService(cacheRepositoryService);
checker.check(previewObjectNew, result);
if (checker.isSatisfiesConstraints()) {
LOGGER.trace(
"Current focus satisfies uniqueness constraints. Iteration {}, token '{}'",
iteration,
iterationToken);
if (LensUtil.evaluateIterationCondition(
context,
focusContext,
iterationSpecificationType,
iteration,
iterationToken,
false,
expressionFactory,
variables,
task,
result)) {
// stop the iterations
break;
} else {
conflictMessage = "post-iteration condition was false";
LOGGER.debug(
"Skipping iteration {}, token '{}' for {} because the post-iteration condition was false",
new Object[] {iteration, iterationToken, focusContext.getHumanReadableName()});
}
} else {
LOGGER.trace(
"Current focus does not satisfy constraints. Conflicting object: {}; iteration={}, maxIterations={}",
new Object[] {checker.getConflictingObject(), iteration, maxIterations});
conflictMessage = checker.getMessages();
}
if (!wasResetIterationCounter) {
wasResetIterationCounter = true;
if (iteration != 0) {
iterationToken = null;
iteration = 0;
LOGGER.trace("Resetting iteration counter and token after conflict");
cleanupContext(focusContext);
continue;
}
}
}
// Next iteration
iteration++;
iterationToken = null;
if (iteration > maxIterations) {
StringBuilder sb = new StringBuilder();
if (iteration == 1) {
sb.append("Error processing ");
} else {
sb.append("Too many iterations (" + iteration + ") for ");
}
sb.append(focusContext.getHumanReadableName());
if (iteration == 1) {
sb.append(": constraint violation: ");
} else {
sb.append(": cannot determine values that satisfy constraints: ");
}
if (conflictMessage != null) {
sb.append(conflictMessage);
}
throw new ObjectAlreadyExistsException(sb.toString());
}
cleanupContext(focusContext);
}
addIterationTokenDeltas(focusContext, iteration, iterationToken);
if (consistencyChecks) context.checkConsistence();
}
