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SynchronizationServiceImpl.java
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SynchronizationServiceImpl.java
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/*
* Copyright (c) 2010-2016 Evolveum
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.evolveum.midpoint.model.impl.sync;
import static com.evolveum.midpoint.schema.internals.InternalsConfig.consistencyChecks;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.xml.namespace.QName;
import com.evolveum.midpoint.model.impl.expr.ModelExpressionThreadLocalHolder;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.Validate;
import org.jetbrains.annotations.NotNull;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
import com.evolveum.midpoint.common.SynchronizationUtils;
import com.evolveum.midpoint.model.api.ModelExecuteOptions;
import com.evolveum.midpoint.model.api.PolicyViolationException;
import com.evolveum.midpoint.model.common.SystemObjectCache;
import com.evolveum.midpoint.model.common.expression.ExpressionFactory;
import com.evolveum.midpoint.model.common.expression.ExpressionUtil;
import com.evolveum.midpoint.model.common.expression.ExpressionVariables;
import com.evolveum.midpoint.model.impl.lens.Clockwork;
import com.evolveum.midpoint.model.impl.lens.ContextFactory;
import com.evolveum.midpoint.model.impl.lens.LensContext;
import com.evolveum.midpoint.model.impl.lens.LensFocusContext;
import com.evolveum.midpoint.model.impl.lens.LensProjectionContext;
import com.evolveum.midpoint.model.impl.util.Utils;
import com.evolveum.midpoint.prism.PrismObject;
import com.evolveum.midpoint.prism.PrismProperty;
import com.evolveum.midpoint.prism.PrismPropertyValue;
import com.evolveum.midpoint.prism.delta.ChangeType;
import com.evolveum.midpoint.prism.delta.ItemDelta;
import com.evolveum.midpoint.prism.delta.ObjectDelta;
import com.evolveum.midpoint.prism.delta.PropertyDelta;
import com.evolveum.midpoint.prism.polystring.PolyString;
import com.evolveum.midpoint.provisioning.api.ResourceObjectShadowChangeDescription;
import com.evolveum.midpoint.repo.api.RepositoryService;
import com.evolveum.midpoint.schema.GetOperationOptions;
import com.evolveum.midpoint.schema.ResourceShadowDiscriminator;
import com.evolveum.midpoint.schema.SelectorOptions;
import com.evolveum.midpoint.schema.constants.ObjectTypes;
import com.evolveum.midpoint.schema.constants.SchemaConstants;
import com.evolveum.midpoint.schema.internals.InternalsConfig;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.schema.result.OperationResultStatus;
import com.evolveum.midpoint.schema.statistics.StatisticsUtil;
import com.evolveum.midpoint.schema.statistics.SynchronizationInformation;
import com.evolveum.midpoint.schema.util.ShadowUtil;
import com.evolveum.midpoint.task.api.Task;
import com.evolveum.midpoint.util.QNameUtil;
import com.evolveum.midpoint.util.exception.CommunicationException;
import com.evolveum.midpoint.util.exception.ConfigurationException;
import com.evolveum.midpoint.util.exception.ExpressionEvaluationException;
import com.evolveum.midpoint.util.exception.ObjectAlreadyExistsException;
import com.evolveum.midpoint.util.exception.ObjectNotFoundException;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.util.exception.SecurityViolationException;
import com.evolveum.midpoint.util.exception.SystemException;
import com.evolveum.midpoint.util.logging.LoggingUtils;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import com.evolveum.midpoint.xml.ns._public.common.common_3.BeforeAfterType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ExpressionType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.FocusType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectReferenceType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectSynchronizationType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectTemplateType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ResourceType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ShadowKindType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ShadowType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.SynchronizationActionType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.SynchronizationReactionType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.SynchronizationSituationType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.SynchronizationType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.SystemConfigurationType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.UserType;
/**
* Synchronization service receives change notifications from provisioning. It
* decides which synchronization policy to use and evaluates it (correlation,
* confirmation, situations, reaction, ...)
*
* @author lazyman
* @author Radovan Semancik
*
* Note: don't autowire this bean by implementing class, as it is
* proxied by Spring AOP. Use the interface instead.
*/
@Service(value = "synchronizationService")
public class SynchronizationServiceImpl implements SynchronizationService {
private static final Trace LOGGER = TraceManager.getTrace(SynchronizationServiceImpl.class);
@Autowired(required = true)
private ActionManager<Action> actionManager;
@Autowired
private CorrelationConfirmationEvaluator correlationConfirmationEvaluator;
@Autowired(required = true)
@Qualifier("cacheRepositoryService")
private RepositoryService repositoryService;
@Autowired(required = true)
private ContextFactory contextFactory;
@Autowired(required = true)
private Clockwork clockwork;
@Autowired(required = true)
private ExpressionFactory expressionFactory;
@Autowired(required = true)
private SystemObjectCache systemObjectCache;
@Override
public void notifyChange(ResourceObjectShadowChangeDescription change, Task task,
OperationResult parentResult) {
validate(change);
Validate.notNull(parentResult, "Parent operation result must not be null.");
boolean logDebug = isLogDebug(change);
if (logDebug) {
LOGGER.debug("SYNCHRONIZATION: received change notification {}", change);
} else {
LOGGER.trace("SYNCHRONIZATION: received change notification {}", change);
}
OperationResult subResult = parentResult.createSubresult(NOTIFY_CHANGE);
PrismObject<? extends ShadowType> currentShadow = change.getCurrentShadow();
PrismObject<? extends ShadowType> applicableShadow = currentShadow;
if (applicableShadow == null) {
// We need this e.g. in case of delete
applicableShadow = change.getOldShadow();
}
SynchronizationEventInformation eventInfo = new SynchronizationEventInformation(applicableShadow,
change.getSourceChannel(), task);
try {
ResourceType resourceType = change.getResource().asObjectable();
PrismObject<SystemConfigurationType> configuration = systemObjectCache.getSystemConfiguration(subResult);
ObjectSynchronizationType synchronizationPolicy = determineSynchronizationPolicy(resourceType,
applicableShadow, configuration, task, subResult);
if (LOGGER.isTraceEnabled()) {
String policyDesc = null;
if (synchronizationPolicy != null) {
if (synchronizationPolicy.getName() == null) {
policyDesc = "(kind=" + synchronizationPolicy.getKind() + ", intent="
+ synchronizationPolicy.getIntent() + ", objectclass="
+ synchronizationPolicy.getObjectClass() + ")";
} else {
policyDesc = synchronizationPolicy.getName();
}
}
LOGGER.trace("SYNCHRONIZATION determined policy: {}", policyDesc);
}
if (synchronizationPolicy == null) {
String message = "SYNCHRONIZATION no matching policy for " + applicableShadow + " ("
+ applicableShadow.asObjectable().getObjectClass() + ") " + " on " + resourceType
+ ", ignoring change from channel " + change.getSourceChannel();
LOGGER.debug(message);
subResult.recordStatus(OperationResultStatus.NOT_APPLICABLE, message);
eventInfo.setNoSynchronizationPolicy();
eventInfo.record(task);
return;
}
if (!isSynchronizationEnabled(synchronizationPolicy)) {
String message = "SYNCHRONIZATION is not enabled for " + resourceType
+ " ignoring change from channel " + change.getSourceChannel();
LOGGER.debug(message);
subResult.recordStatus(OperationResultStatus.NOT_APPLICABLE, message);
eventInfo.setSynchronizationNotEnabled();
eventInfo.record(task);
return;
}
// check if the kind/intent in the syncPolicy satisfy constraints
// defined in task
if (!satisfyTaskConstraints(synchronizationPolicy, task)) {
LOGGER.trace(
"SYNCHRONIZATION skipping {} because it does not match kind/intent defined in task",
new Object[] { applicableShadow });
subResult.recordStatus(OperationResultStatus.NOT_APPLICABLE,
"Skipped because it does not match objectClass/kind/intent");
eventInfo.setDoesNotMatchTaskSpecification();
eventInfo.record(task);
return;
}
if (isProtected((PrismObject<ShadowType>) currentShadow)) {
if (StringUtils.isNotBlank(synchronizationPolicy.getIntent())) {
List<PropertyDelta<?>> modifications = SynchronizationUtils
.createSynchronizationTimestampsDelta(currentShadow);
PropertyDelta<String> intentDelta = PropertyDelta.createModificationReplaceProperty(
ShadowType.F_INTENT, currentShadow.getDefinition(),
synchronizationPolicy.getIntent());
modifications.add(intentDelta);
try {
repositoryService.modifyObject(ShadowType.class, currentShadow.getOid(),
modifications, subResult);
task.recordObjectActionExecuted(currentShadow, ChangeType.MODIFY, null);
} catch (Throwable t) {
task.recordObjectActionExecuted(currentShadow, ChangeType.MODIFY, t);
} finally {
task.markObjectActionExecutedBoundary();
}
}
subResult.recordSuccess();
eventInfo.record(task);
LOGGER.debug("SYNCHRONIZATION: DONE (dry run) for protected shadow {}", currentShadow);
return;
}
Class<? extends FocusType> focusType = determineFocusClass(synchronizationPolicy, resourceType);
if (LOGGER.isTraceEnabled()) {
LOGGER.trace("Synchronization is enabled, focus class: {}, found applicable policy: {}",
focusType, Utils.getPolicyDesc(synchronizationPolicy));
}
SynchronizationSituation situation = determineSituation(focusType, change, synchronizationPolicy,
configuration.asObjectable(), task, subResult);
if (logDebug) {
LOGGER.debug("SYNCHRONIZATION: SITUATION: '{}', currentOwner={}, correlatedOwner={}",
situation.getSituation().value(), situation.getCurrentOwner(),
situation.getCorrelatedOwner());
} else {
LOGGER.trace("SYNCHRONIZATION: SITUATION: '{}', currentOwner={}, correlatedOwner={}",
situation.getSituation().value(), situation.getCurrentOwner(),
situation.getCorrelatedOwner());
}
eventInfo.setOriginalSituation(situation.getSituation());
eventInfo.setNewSituation(situation.getSituation()); // overwritten
// later
// (TODO fix
// this!)
if (change.isUnrelatedChange() || Utils.isDryRun(task)) {
PrismObject object = null;
if (change.getCurrentShadow() != null) {
object = change.getCurrentShadow();
} else if (change.getOldShadow() != null) {
object = change.getOldShadow();
}
Collection modifications = SynchronizationUtils
.createSynchronizationSituationAndDescriptionDelta(object, situation.getSituation(),
task.getChannel(), false);
if (StringUtils.isNotBlank(synchronizationPolicy.getIntent())) {
modifications.add(PropertyDelta.createModificationReplaceProperty(ShadowType.F_INTENT,
object.getDefinition(), synchronizationPolicy.getIntent()));
}
try {
repositoryService.modifyObject(ShadowType.class, object.getOid(), modifications,
subResult);
task.recordObjectActionExecuted(object, ChangeType.MODIFY, null);
} catch (Throwable t) {
task.recordObjectActionExecuted(object, ChangeType.MODIFY, t);
} finally {
task.markObjectActionExecutedBoundary();
}
subResult.recordSuccess();
eventInfo.record(task);
LOGGER.debug("SYNCHRONIZATION: DONE (dry run) for {}", object);
return;
}
// must be here, because when the reaction has no action, the
// situation will be not set.
PrismObject<ShadowType> newCurrentShadow = saveSyncMetadata(
(PrismObject<ShadowType>) currentShadow, situation, change, synchronizationPolicy, task,
parentResult);
if (newCurrentShadow != null) {
change.setCurrentShadow(newCurrentShadow);
}
SynchronizationSituationType newSituation = reactToChange(focusType, change,
synchronizationPolicy, situation, resourceType, logDebug, configuration, task, subResult);
eventInfo.setNewSituation(newSituation);
eventInfo.record(task);
subResult.computeStatus();
} catch (SystemException ex) {
// avoid unnecessary re-wrap
eventInfo.setException(ex);
eventInfo.record(task);
subResult.recordFatalError(ex);
throw ex;
} catch (Exception ex) {
eventInfo.setException(ex);
eventInfo.record(task);
subResult.recordFatalError(ex);
throw new SystemException(ex);
} finally {
task.markObjectActionExecutedBoundary();
// if (LOGGER.isTraceEnabled()) {
// LOGGER.trace(subResult.dump());
// }
}
LOGGER.debug("SYNCHRONIZATION: DONE for {}", currentShadow);
}
private boolean satisfyTaskConstraints(ObjectSynchronizationType synchronizationPolicy, Task task) {
PrismProperty<ShadowKindType> kind = task.getExtensionProperty(SchemaConstants.MODEL_EXTENSION_KIND);
if (kind != null && !kind.isEmpty()) {
ShadowKindType kindValue = kind.getRealValue();
ShadowKindType policyKind = synchronizationPolicy.getKind();
if (policyKind == null) {
policyKind = ShadowKindType.ACCOUNT; // TODO is this ok? [med]
}
if (!policyKind.equals(kindValue)) {
return false;
}
}
PrismProperty<String> intent = task.getExtensionProperty(SchemaConstants.MODEL_EXTENSION_INTENT);
if (intent != null && !intent.isEmpty()) {
String intentValue = intent.getRealValue();
if (StringUtils.isEmpty(synchronizationPolicy.getIntent())) {
return false;
}
if (!synchronizationPolicy.getIntent().equals(intentValue)) {
return false;
}
}
return true;
}
private boolean isProtected(PrismObject<ShadowType> shadow) {
if (shadow == null) {
return false;
}
ShadowType currentShadowType = shadow.asObjectable();
if (currentShadowType.isProtectedObject() == null) {
return false;
}
return currentShadowType.isProtectedObject();
}
private <F extends FocusType> Class<F> determineFocusClass(
ObjectSynchronizationType synchronizationPolicy, ResourceType resource)
throws ConfigurationException {
if (synchronizationPolicy == null) {
throw new IllegalStateException("synchronizationPolicy is null");
}
QName focusTypeQName = synchronizationPolicy.getFocusType();
if (focusTypeQName == null) {
return (Class<F>) UserType.class;
}
ObjectTypes objectType = ObjectTypes.getObjectTypeFromTypeQName(focusTypeQName);
if (objectType == null) {
throw new ConfigurationException(
"Unknown focus type " + focusTypeQName + " in synchronization policy in " + resource);
}
return (Class<F>) objectType.getClassDefinition();
}
@Override
public ObjectSynchronizationType determineSynchronizationPolicy(ResourceType resourceType,
PrismObject<? extends ShadowType> currentShadow,
PrismObject<SystemConfigurationType> configuration, Task task, OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException {
SynchronizationType synchronization = resourceType.getSynchronization();
if (synchronization == null) {
return null;
}
for (ObjectSynchronizationType objectSynchronization : synchronization.getObjectSynchronization()) {
if (isPolicyApplicable(currentShadow, objectSynchronization, resourceType.asPrismObject(),
configuration, task, result)) {
return objectSynchronization;
}
}
return null;
}
private boolean isPolicyApplicable(PrismObject<? extends ShadowType> currentShadow,
ObjectSynchronizationType synchronizationPolicy, PrismObject<ResourceType> resource,
PrismObject<SystemConfigurationType> configuration, Task task, OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException {
if (!SynchronizationUtils.isPolicyApplicable(currentShadow, synchronizationPolicy, resource)) {
return false;
}
Boolean conditionResult = evaluateSynchronizationPolicyCondition(synchronizationPolicy, currentShadow,
resource, configuration, task, result);
if (conditionResult != null) {
return conditionResult.booleanValue();
}
return true;
}
private Boolean evaluateSynchronizationPolicyCondition(ObjectSynchronizationType synchronizationPolicy,
PrismObject<? extends ShadowType> currentShadow, PrismObject<ResourceType> resource,
PrismObject<SystemConfigurationType> configuration, Task task, OperationResult result)
throws SchemaException, ExpressionEvaluationException, ObjectNotFoundException {
if (synchronizationPolicy.getCondition() == null) {
return null;
}
ExpressionType conditionExpressionType = synchronizationPolicy.getCondition();
String desc = "condition in object synchronization " + synchronizationPolicy.getName();
ExpressionVariables variables = Utils.getDefaultExpressionVariables(null, currentShadow, null,
resource, configuration, null);
try {
ModelExpressionThreadLocalHolder.pushCurrentTask(task);
ModelExpressionThreadLocalHolder.pushCurrentResult(result);
PrismPropertyValue<Boolean> evaluateCondition = ExpressionUtil.evaluateCondition(variables,
conditionExpressionType, expressionFactory, desc, task, result);
return evaluateCondition.getValue();
} finally {
ModelExpressionThreadLocalHolder.popCurrentResult();
ModelExpressionThreadLocalHolder.popCurrentTask();
}
}
private boolean isLogDebug(ResourceObjectShadowChangeDescription change) {
// Reconciliation changes are routine. Do not let it polute the
// logfiles.
return !SchemaConstants.CHANGE_CHANNEL_RECON_URI.equals(change.getSourceChannel());
}
private void validate(ResourceObjectShadowChangeDescription change) {
Validate.notNull(change, "Resource object shadow change description must not be null.");
Validate.isTrue(change.getCurrentShadow() != null || change.getObjectDelta() != null,
"Object delta and current shadow are null. At least one must be provided.");
Validate.notNull(change.getResource(), "Resource in change must not be null.");
if (consistencyChecks) {
if (change.getCurrentShadow() != null) {
change.getCurrentShadow().checkConsistence();
ShadowUtil.checkConsistence(change.getCurrentShadow(),
"current shadow in change description");
}
if (change.getObjectDelta() != null) {
change.getObjectDelta().checkConsistence();
}
}
}
// @Override
// public void notifyFailure(ResourceOperationFailureDescription
// failureDescription,
// Task task, OperationResult parentResult) {
// Validate.notNull(failureDescription, "Resource object shadow failure
// description must not be null.");
// Validate.notNull(failureDescription.getCurrentShadow(), "Current shadow
// in resource object shadow failure description must not be null.");
// Validate.notNull(failureDescription.getObjectDelta(), "Delta in resource
// object shadow failure description must not be null.");
// Validate.notNull(failureDescription.getResource(), "Resource in failure
// must not be null.");
// Validate.notNull(failureDescription.getResult(), "Result in failure
// description must not be null.");
// Validate.notNull(parentResult, "Parent operation result must not be
// null.");
//
// LOGGER.debug("SYNCHRONIZATION: received failure notifiation {}",
// failureDescription);
//
// LOGGER.error("Provisioning error: {}",
// failureDescription.getResult().getMessage());
//
// // TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO
// TODO TODO TODO TODO
// }
private boolean isSynchronizationEnabled(ObjectSynchronizationType synchronization) {
if (synchronization == null || synchronization.isEnabled() == null) {
return false;
}
return synchronization.isEnabled();
}
/**
* XXX: in situation when one account belongs to two different idm users
* (repository returns only first user, method
* {@link com.evolveum.midpoint.model.api.ModelService#findShadowOwner(String, Task, OperationResult)}
* (String, com.evolveum.midpoint.schema.result.OperationResult)} ). It
* should be changed because otherwise we can't find
* {@link SynchronizationSituationType#DISPUTED} situation
*/
private <F extends FocusType> SynchronizationSituation determineSituation(Class<F> focusType,
ResourceObjectShadowChangeDescription change, ObjectSynchronizationType synchronizationPolicy,
SystemConfigurationType configurationType, Task task, OperationResult result) {
OperationResult subResult = result.createSubresult(CHECK_SITUATION);
LOGGER.trace("Determining situation for resource object shadow.");
SynchronizationSituation situation = null;
try {
String shadowOid = getOidFromChange(change);
Validate.notEmpty(shadowOid, "Couldn't get resource object shadow oid from change.");
PrismObject<F> owner = repositoryService.searchShadowOwner(shadowOid,
SelectorOptions.createCollection(GetOperationOptions.createAllowNotFound()), subResult);
if (owner != null) {
F ownerType = owner.asObjectable();
LOGGER.trace("Shadow OID {} does have owner: {}", shadowOid, ownerType.getName());
SynchronizationSituationType state = null;
switch (getModificationType(change)) {
case ADD:
case MODIFY:
// if user is found it means account/group is linked to
// resource
state = SynchronizationSituationType.LINKED;
break;
case DELETE:
state = SynchronizationSituationType.DELETED;
}
situation = new SynchronizationSituation<>(ownerType, null, state);
} else {
LOGGER.trace("Resource object shadow doesn't have owner.");
situation = determineSituationWithCorrelation(focusType, change, synchronizationPolicy, owner,
configurationType, task, result);
}
} catch (Exception ex) {
LOGGER.error("Error occurred during resource object shadow owner lookup.");
throw new SystemException(
"Error occurred during resource object shadow owner lookup, reason: " + ex.getMessage(),
ex);
} finally {
subResult.computeStatus();
}
return situation;
}
private String getOidFromChange(ResourceObjectShadowChangeDescription change) {
if (change.getCurrentShadow() != null && StringUtils.isNotEmpty(change.getCurrentShadow().getOid())) {
return change.getCurrentShadow().getOid();
}
if (change.getOldShadow() != null && StringUtils.isNotEmpty(change.getOldShadow().getOid())) {
return change.getOldShadow().getOid();
}
if (change.getObjectDelta() == null || StringUtils.isEmpty(change.getObjectDelta().getOid())) {
throw new IllegalArgumentException(
"Oid was not defined in change (not in current, old shadow, delta).");
}
return change.getObjectDelta().getOid();
}
/**
* Tries to match specified focus and shadow. Return true if it matches,
* false otherwise.
*/
@Override
public <F extends FocusType> boolean matchUserCorrelationRule(PrismObject<ShadowType> shadow,
PrismObject<F> focus, ResourceType resourceType,
PrismObject<SystemConfigurationType> configuration, Task task, OperationResult result)
throws ConfigurationException, SchemaException, ObjectNotFoundException,
ExpressionEvaluationException {
ObjectSynchronizationType synchronizationPolicy = determineSynchronizationPolicy(resourceType, shadow,
configuration, task, result);
Class<F> focusClass;
// TODO is this correct? The problem is that synchronizationPolicy can
// be null...
if (synchronizationPolicy != null) {
focusClass = determineFocusClass(synchronizationPolicy, resourceType);
} else {
focusClass = (Class) focus.asObjectable().getClass();
}
return correlationConfirmationEvaluator.matchUserCorrelationRule(focusClass, shadow, focus,
synchronizationPolicy, resourceType,
configuration == null ? null : configuration.asObjectable(), task, result);
}
/**
* account is not linked to user. you have to use correlation and
* confirmation rule to be sure user for this account doesn't exists
* resourceShadow only contains the data that were in the repository before
* the change. But the correlation/confirmation should work on the updated
* data. Therefore let's apply the changes before running
* correlation/confirmation
*/
private <F extends FocusType> SynchronizationSituation determineSituationWithCorrelation(
Class<F> focusType, ResourceObjectShadowChangeDescription change,
ObjectSynchronizationType synchronizationPolicy, PrismObject<F> owner,
SystemConfigurationType configurationType, Task task, OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException {
if (ChangeType.DELETE.equals(getModificationType(change))) {
// account was deleted and we know it didn't have owner
return new SynchronizationSituation<>(owner == null ? null : owner.asObjectable(), null,
SynchronizationSituationType.DELETED);
}
PrismObject<? extends ShadowType> resourceShadow = change.getCurrentShadow();
ObjectDelta syncDelta = change.getObjectDelta();
if (resourceShadow == null && syncDelta != null && ChangeType.ADD.equals(syncDelta.getChangeType())) {
LOGGER.trace("Trying to compute current shadow from change delta add.");
PrismObject<? extends ShadowType> shadow = syncDelta
.computeChangedObject(syncDelta.getObjectToAdd());
resourceShadow = shadow;
change.setCurrentShadow(shadow);
}
Validate.notNull(resourceShadow, "Current shadow must not be null.");
ResourceType resource = change.getResource().asObjectable();
validateResourceInShadow(resourceShadow.asObjectable(), resource);
SynchronizationSituationType state = null;
LOGGER.trace(
"SYNCHRONIZATION: CORRELATION: Looking for list of {} objects based on correlation rule.",
focusType.getSimpleName());
List<PrismObject<F>> users = correlationConfirmationEvaluator.findFocusesByCorrelationRule(focusType,
resourceShadow.asObjectable(), synchronizationPolicy.getCorrelation(), resource,
configurationType, task, result);
if (users == null) {
users = new ArrayList<>();
}
if (users.size() > 1) {
if (synchronizationPolicy.getConfirmation() == null) {
LOGGER.trace("SYNCHRONIZATION: CONFIRMATION: no confirmation defined.");
} else {
LOGGER.debug(
"SYNCHRONIZATION: CONFIRMATION: Checking objects from correlation with confirmation rule.");
users = correlationConfirmationEvaluator.findUserByConfirmationRule(focusType, users,
resourceShadow.asObjectable(), resource, configurationType,
synchronizationPolicy.getConfirmation(), task, result);
}
}
F user = null;
switch (users.size()) {
case 0:
state = SynchronizationSituationType.UNMATCHED;
break;
case 1:
switch (getModificationType(change)) {
case ADD:
case MODIFY:
state = SynchronizationSituationType.UNLINKED;
break;
case DELETE:
state = SynchronizationSituationType.DELETED;
break;
}
user = users.get(0).asObjectable();
break;
default:
state = SynchronizationSituationType.DISPUTED;
}
return new SynchronizationSituation(null, user, state);
}
private void validateResourceInShadow(ShadowType shadow, ResourceType resource) {
if (shadow.getResource() != null || shadow.getResourceRef() != null) {
return;
}
ObjectReferenceType reference = new ObjectReferenceType();
reference.setOid(resource.getOid());
reference.setType(ObjectTypes.RESOURCE.getTypeQName());
shadow.setResourceRef(reference);
}
/**
* @param change
* @return method checks change type in object delta if available, otherwise
* returns {@link ChangeType#ADD}
*/
private ChangeType getModificationType(ResourceObjectShadowChangeDescription change) {
if (change.getObjectDelta() != null) {
return change.getObjectDelta().getChangeType();
}
return ChangeType.ADD;
}
private <F extends FocusType> SynchronizationSituationType reactToChange(Class<F> focusClass,
ResourceObjectShadowChangeDescription change, ObjectSynchronizationType synchronizationPolicy,
SynchronizationSituation<F> situation, ResourceType resource, boolean logDebug,
PrismObject<SystemConfigurationType> configuration, Task task, OperationResult parentResult)
throws ConfigurationException, ObjectNotFoundException, SchemaException,
PolicyViolationException, ExpressionEvaluationException, ObjectAlreadyExistsException,
CommunicationException, SecurityViolationException {
SynchronizationSituationType newSituation = situation.getSituation();
SynchronizationReactionType reactionDefinition = findReactionDefinition(synchronizationPolicy,
situation, change.getSourceChannel(), resource);
if (reactionDefinition == null) {
LOGGER.trace("No reaction is defined for situation {} in {}", situation.getSituation(), resource);
return newSituation;
}
// seems to be unused so commented it out [med]
// PrismObject<? extends ObjectType> shadow = null;
// if (change.getCurrentShadow() != null) {
// shadow = change.getCurrentShadow();
// } else if (change.getOldShadow() != null) {
// shadow = change.getOldShadow();
// }
Boolean doReconciliation = determineReconciliation(synchronizationPolicy, reactionDefinition);
if (doReconciliation == null) {
// We have to do reconciliation if we have got a full shadow and no
// delta.
// There is no other good way how to reflect the changes from the
// shadow.
if (change.getObjectDelta() == null) {
doReconciliation = true;
}
}
Boolean limitPropagation = determinePropagationLimitation(synchronizationPolicy, reactionDefinition,
change.getSourceChannel());
ModelExecuteOptions options = new ModelExecuteOptions();
options.setReconcile(doReconciliation);
options.setLimitPropagation(limitPropagation);
final boolean willSynchronize = isSynchronize(reactionDefinition);
LensContext<F> lensContext = null;
if (willSynchronize) {
lensContext = createLensContext(focusClass, change, reactionDefinition, synchronizationPolicy,
situation, options, configuration, parentResult);
}
if (LOGGER.isTraceEnabled() && lensContext != null) {
LOGGER.trace("---[ SYNCHRONIZATION context before action execution ]-------------------------\n"
+ "{}\n------------------------------------------", lensContext.debugDump());
}
if (willSynchronize) {
// there's no point in calling executeAction without context - so
// the actions are executed only if synchronize == true
executeActions(reactionDefinition, lensContext, situation, BeforeAfterType.BEFORE, resource,
logDebug, task, parentResult);
Iterator<LensProjectionContext> iterator = lensContext.getProjectionContextsIterator();
LensProjectionContext originalProjectionContext = iterator.hasNext() ? iterator.next() : null;
try {
clockwork.run(lensContext, task, parentResult);
} catch (ConfigurationException | ObjectNotFoundException | SchemaException |
PolicyViolationException | ExpressionEvaluationException | ObjectAlreadyExistsException |
CommunicationException | SecurityViolationException e) {
LOGGER.error("SYNCHRONIZATION: Error in synchronization on {} for situation {}: {}: {}. Change was {}",
new Object[] {resource, situation.getSituation(), e.getClass().getSimpleName(),
e.getMessage(), change, e});
// what to do here? We cannot throw the error back. All that the notifyChange method
// could do is to convert it to SystemException. But that indicates an internal error and it will
// break whatever code called the notifyChange in the first place. We do not want that.
// If the clockwork could not do anything with the exception then perhaps nothing can be done at all.
// So just log the error (the error should be remembered in the result and task already)
// and then just go on.
}
// note: actions "AFTER" seem to be useless here (basically they
// modify lens context - which is relevant only if followed by
// clockwork run)
executeActions(reactionDefinition, lensContext, situation, BeforeAfterType.AFTER, resource,
logDebug, task, parentResult);
if (originalProjectionContext != null) {
newSituation = originalProjectionContext.getSynchronizationSituationResolved();
}
} else {
LOGGER.trace("Skipping clockwork run on {} for situation {}, synchronize is set to false.",
new Object[] { resource, situation.getSituation() });
}
return newSituation;
}
private Boolean determineReconciliation(ObjectSynchronizationType synchronizationPolicy,
SynchronizationReactionType reactionDefinition) {
if (reactionDefinition.isReconcile() != null) {
return reactionDefinition.isReconcile();
}
if (synchronizationPolicy.isReconcile() != null) {
return synchronizationPolicy.isReconcile();
}
return null;
}
private Boolean determinePropagationLimitation(ObjectSynchronizationType synchronizationPolicy,
SynchronizationReactionType reactionDefinition, String channel) {
if (StringUtils.isNotBlank(channel)) {
QName channelQName = QNameUtil.uriToQName(channel);
// Discovery channel is used when compensating some inconsistent
// state. Therefore we do not want to propagate changes to other
// resources. We only want to resolve the problem and continue in
// previous provisioning/synchronization during which this
// compensation was triggered.
if (SchemaConstants.CHANGE_CHANNEL_DISCOVERY.equals(channelQName)
&& SynchronizationSituationType.DELETED != reactionDefinition.getSituation()) {
return true;
}
}
if (reactionDefinition.isLimitPropagation() != null) {
return reactionDefinition.isLimitPropagation();
}
if (synchronizationPolicy.isLimitPropagation() != null) {
return synchronizationPolicy.isLimitPropagation();
}
return null;
}
@NotNull
private <F extends FocusType> LensContext<F> createLensContext(Class<F> focusClass,
ResourceObjectShadowChangeDescription change, SynchronizationReactionType reactionDefinition,
ObjectSynchronizationType synchronizationPolicy, SynchronizationSituation<F> situation,
ModelExecuteOptions options, PrismObject<SystemConfigurationType> configuration,
OperationResult parentResult) throws ObjectNotFoundException, SchemaException {
LensContext<F> context = contextFactory.createSyncContext(focusClass, change);
context.setLazyAuditRequest(true);
context.setSystemConfiguration(configuration);
context.setOptions(options);
ResourceType resource = change.getResource().asObjectable();
if (ModelExecuteOptions.isLimitPropagation(options)) {
context.setTriggeredResource(resource);
}
context.rememberResource(resource);
PrismObject<ShadowType> shadow = getShadowFromChange(change);
if (InternalsConfig.consistencyChecks)
shadow.checkConsistence();
// Projection context
ShadowKindType kind = getKind(shadow, synchronizationPolicy);
String intent = getIntent(shadow, synchronizationPolicy);
boolean thombstone = isThombstone(change);
ResourceShadowDiscriminator descr = new ResourceShadowDiscriminator(resource.getOid(), kind, intent,
thombstone);
LensProjectionContext projectionContext = context.createProjectionContext(descr);
projectionContext.setResource(resource);
projectionContext.setOid(getOidFromChange(change));
projectionContext.setSynchronizationSituationDetected(situation.getSituation());
// insert object delta if available in change
ObjectDelta<? extends ShadowType> delta = change.getObjectDelta();
if (delta != null) {
projectionContext.setSyncDelta((ObjectDelta<ShadowType>) delta);
} else {
projectionContext.setSyncAbsoluteTrigger(true);
}
// we insert account if available in change
PrismObject<ShadowType> currentAccount = shadow;
if (currentAccount != null) {
projectionContext.setLoadedObject(currentAccount);
if (!thombstone) {
projectionContext.setFullShadow(true);
}
projectionContext.setFresh(true);
}
if (delta != null && delta.isDelete()) {
projectionContext.setExists(false);
} else {
projectionContext.setExists(true);
}
projectionContext.setDoReconciliation(ModelExecuteOptions.isReconcile(options));
// Focus context
if (situation.getCurrentOwner() != null) {
F focusType = situation.getCurrentOwner();
LensFocusContext<F> focusContext = context.createFocusContext();
PrismObject<F> focusOld = focusType.asPrismObject();
focusContext.setLoadedObject(focusOld);
}
// Global stuff
ObjectReferenceType objectTemplateRef = null;
if (reactionDefinition.getObjectTemplateRef() != null) {
objectTemplateRef = reactionDefinition.getObjectTemplateRef();
} else if (synchronizationPolicy.getObjectTemplateRef() != null) {
objectTemplateRef = synchronizationPolicy.getObjectTemplateRef();
}
if (objectTemplateRef != null) {
ObjectTemplateType objectTemplate = repositoryService
.getObject(ObjectTemplateType.class, objectTemplateRef.getOid(), null, parentResult)
.asObjectable();
context.setFocusTemplate(objectTemplate);
}
return context;
}
protected PrismObject<ShadowType> getShadowFromChange(ResourceObjectShadowChangeDescription change) {
if (change.getCurrentShadow() != null) {
return (PrismObject<ShadowType>) change.getCurrentShadow();
}
if (change.getOldShadow() != null) {
return (PrismObject<ShadowType>) change.getOldShadow();
}
return null;
}
private ShadowKindType getKind(PrismObject<ShadowType> shadow,
ObjectSynchronizationType synchronizationPolicy) {
ShadowKindType shadowKind = shadow.asObjectable().getKind();
if (shadowKind != null) {
return shadowKind;
}
if (synchronizationPolicy.getKind() != null) {
return synchronizationPolicy.getKind();
}
return ShadowKindType.ACCOUNT;
}
private String getIntent(PrismObject<ShadowType> shadow,
ObjectSynchronizationType synchronizationPolicy) {
String shadowIntent = shadow.asObjectable().getIntent();
if (shadowIntent != null) {
return shadowIntent;
}
return synchronizationPolicy.getIntent();
}
private boolean isThombstone(ResourceObjectShadowChangeDescription change) {
PrismObject<? extends ShadowType> shadow = null;
if (change.getOldShadow() != null) {
shadow = change.getOldShadow();
} else if (change.getCurrentShadow() != null) {
shadow = change.getCurrentShadow();
}
if (shadow != null) {
if (shadow.asObjectable().isDead() != null) {
return shadow.asObjectable().isDead().booleanValue();
}
}
ObjectDelta<? extends ShadowType> objectDelta = change.getObjectDelta();
if (objectDelta == null) {
return false;
}
return objectDelta.isDelete();
}
private boolean isSynchronize(SynchronizationReactionType reactionDefinition) {
if (reactionDefinition.isSynchronize() != null) {
return reactionDefinition.isSynchronize();
}
return !reactionDefinition.getAction().isEmpty();
}
private SynchronizationReactionType findReactionDefinition(
ObjectSynchronizationType synchronizationPolicy, SynchronizationSituation situation,
String channel, ResourceType resource) throws ConfigurationException {
SynchronizationReactionType defaultReaction = null;