Пример #1
0
  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();
  }