/
Clockwork.java
1596 lines (1438 loc) · 72.7 KB
/
Clockwork.java
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/*
* Copyright (c) 2010-2019 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.lens;
import static com.evolveum.midpoint.model.api.ProgressInformation.ActivityType.CLOCKWORK;
import static com.evolveum.midpoint.model.api.ProgressInformation.ActivityType.WAITING;
import static com.evolveum.midpoint.model.api.ProgressInformation.StateType.ENTERING;
import static com.evolveum.midpoint.model.api.ProgressInformation.StateType.EXITING;
import static com.evolveum.midpoint.model.impl.lens.LensUtil.getExportType;
import static com.evolveum.midpoint.model.impl.lens.LensUtil.getExportTypeTraceOrReduced;
import static java.util.Collections.emptyList;
import static org.apache.commons.collections4.CollectionUtils.emptyIfNull;
import static org.apache.commons.lang3.ObjectUtils.defaultIfNull;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Comparator;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.xml.datatype.XMLGregorianCalendar;
import javax.xml.namespace.QName;
import com.evolveum.midpoint.model.impl.util.AuditHelper;
import com.evolveum.midpoint.prism.*;
import com.evolveum.midpoint.prism.polystring.PolyString;
import com.evolveum.midpoint.schema.cache.CacheConfigurationManager;
import com.evolveum.midpoint.schema.cache.CacheType;
import com.evolveum.midpoint.schema.result.OperationResultBuilder;
import com.evolveum.midpoint.task.api.*;
import com.evolveum.midpoint.util.logging.*;
import com.evolveum.midpoint.xml.ns._public.common.common_3.*;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang3.Validate;
import org.jetbrains.annotations.NotNull;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;
import com.evolveum.midpoint.audit.api.AuditEventRecord;
import com.evolveum.midpoint.audit.api.AuditEventStage;
import com.evolveum.midpoint.audit.api.AuditEventType;
import com.evolveum.midpoint.common.Clock;
import com.evolveum.midpoint.model.api.ModelExecuteOptions;
import com.evolveum.midpoint.model.api.ProgressInformation;
import com.evolveum.midpoint.model.api.ProgressListener;
import com.evolveum.midpoint.model.api.context.ModelContext;
import com.evolveum.midpoint.model.api.context.ModelState;
import com.evolveum.midpoint.model.api.hooks.ChangeHook;
import com.evolveum.midpoint.model.api.hooks.HookOperationMode;
import com.evolveum.midpoint.model.api.hooks.HookRegistry;
import com.evolveum.midpoint.model.common.SystemObjectCache;
import com.evolveum.midpoint.model.common.expression.evaluator.caching.AssociationSearchExpressionEvaluatorCache;
import com.evolveum.midpoint.model.common.expression.script.ScriptExpression;
import com.evolveum.midpoint.model.common.expression.script.ScriptExpressionFactory;
import com.evolveum.midpoint.model.impl.lens.projector.ContextLoader;
import com.evolveum.midpoint.model.impl.lens.projector.Projector;
import com.evolveum.midpoint.model.impl.lens.projector.focus.FocusConstraintsChecker;
import com.evolveum.midpoint.model.impl.lens.projector.policy.PolicyRuleScriptExecutor;
import com.evolveum.midpoint.model.impl.lens.projector.policy.PolicyRuleSuspendTaskExecutor;
import com.evolveum.midpoint.model.impl.migrator.Migrator;
import com.evolveum.midpoint.model.impl.sync.RecomputeTaskHandler;
import com.evolveum.midpoint.model.impl.util.ModelImplUtils;
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.query.ObjectFilter;
import com.evolveum.midpoint.prism.util.CloneUtil;
import com.evolveum.midpoint.prism.xml.XmlTypeConverter;
import com.evolveum.midpoint.provisioning.api.ChangeNotificationDispatcher;
import com.evolveum.midpoint.provisioning.api.ProvisioningService;
import com.evolveum.midpoint.provisioning.api.ResourceObjectChangeListener;
import com.evolveum.midpoint.provisioning.api.ResourceOperationListener;
import com.evolveum.midpoint.repo.api.ConflictWatcher;
import com.evolveum.midpoint.repo.api.PreconditionViolationException;
import com.evolveum.midpoint.repo.api.RepositoryService;
import com.evolveum.midpoint.repo.common.expression.ExpressionFactory;
import com.evolveum.midpoint.repo.common.expression.ExpressionUtil;
import com.evolveum.midpoint.repo.common.expression.ExpressionVariables;
import com.evolveum.midpoint.schema.ObjectDeltaOperation;
import com.evolveum.midpoint.schema.constants.ExpressionConstants;
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.util.ObjectTypeUtil;
import com.evolveum.midpoint.schema.util.SystemConfigurationTypeUtil;
import com.evolveum.midpoint.util.DebugUtil;
import com.evolveum.midpoint.util.Holder;
import com.evolveum.midpoint.util.exception.CommonException;
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.PolicyViolationException;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.util.exception.SecurityViolationException;
import com.evolveum.midpoint.util.exception.SystemException;
import com.evolveum.prism.xml.ns._public.query_3.QueryType;
import com.evolveum.prism.xml.ns._public.query_3.SearchFilterType;
/**
* @author semancik
*
*/
@Component
public class Clockwork {
private static final int DEFAULT_NUMBER_OF_RESULTS_TO_KEEP = 5;
private static final int DEFAULT_MAX_CONFLICT_RESOLUTION_ATTEMPTS = 1; // synchronize with common-core-3.xsd
private static final int DEFAULT_CONFLICT_RESOLUTION_DELAY_UNIT = 5000; // synchronize with common-core-3.xsd
private static final int MAX_PRECONDITION_CONFLICT_RESOLUTION_ATTEMPTS = 3;
private static final Trace LOGGER = TraceManager.getTrace(Clockwork.class);
@Autowired private Projector projector;
@Autowired private ContextLoader contextLoader;
@Autowired private ChangeExecutor changeExecutor;
@Autowired private AuditHelper auditHelper;
@Autowired private Clock clock;
@Autowired private SystemObjectCache systemObjectCache;
@Autowired private transient ProvisioningService provisioningService;
@Autowired private transient ChangeNotificationDispatcher changeNotificationDispatcher;
@Autowired private ExpressionFactory expressionFactory;
@Autowired private ScriptExpressionFactory scriptExpressionFactory;
@Autowired private PersonaProcessor personaProcessor;
@Autowired private PrismContext prismContext;
@Autowired private TaskManager taskManager;
@Autowired private Tracer tracer;
@Autowired private OperationalDataManager metadataManager;
@Autowired private ContextFactory contextFactory;
@Autowired private Migrator migrator;
@Autowired private ClockworkMedic medic;
@Autowired private PolicyRuleScriptExecutor policyRuleScriptExecutor;
@Autowired private PolicyRuleSuspendTaskExecutor policyRuleSuspendTaskExecutor;
@Autowired private ClockworkAuthorizationHelper clockworkAuthorizationHelper;
@Autowired private CacheConfigurationManager cacheConfigurationManager;
@Autowired(required = false)
private HookRegistry hookRegistry;
@Autowired
@Qualifier("cacheRepositoryService")
private transient RepositoryService repositoryService;
private static final int DEFAULT_MAX_CLICKS = 200;
public <F extends ObjectType> HookOperationMode run(LensContext<F> context, Task task, OperationResult parentResult)
throws SchemaException, PolicyViolationException, ExpressionEvaluationException, ObjectNotFoundException,
ObjectAlreadyExistsException, CommunicationException, ConfigurationException, SecurityViolationException, PreconditionViolationException {
OperationResultBuilder builder = parentResult.subresult(Clockwork.class.getName() + ".run");
boolean tracingRequested = startTracingIfRequested(context, task, builder, parentResult);
OperationResult result = builder.build();
ClockworkRunTraceType trace = null;
try {
if (result.isTraced()) {
trace = recordTraceAtStart(context, task, result);
}
LOGGER.trace("Running clockwork for context {}", context);
if (InternalsConfig.consistencyChecks) {
context.checkConsistence();
}
int clicked = 0;
boolean focusConflictPresent = false;
ConflictResolutionType conflictResolutionPolicy = null;
HookOperationMode finalMode;
try {
context.reportProgress(new ProgressInformation(CLOCKWORK, ENTERING));
if (context.getFocusContext() != null && context.getFocusContext().getOid() != null) {
context.createAndRegisterFocusConflictWatcher(context.getFocusContext().getOid(), repositoryService);
}
FocusConstraintsChecker
.enterCache(cacheConfigurationManager.getConfiguration(CacheType.LOCAL_FOCUS_CONSTRAINT_CHECKER_CACHE));
enterAssociationSearchExpressionEvaluatorCache();
//enterDefaultSearchExpressionEvaluatorCache();
provisioningService.enterConstraintsCheckerCache();
while (context.getState() != ModelState.FINAL) {
// TODO implement in model context (as transient or even non-transient attribute) to allow for checking in more complex scenarios
int maxClicks = getMaxClicks(context, result);
if (clicked >= maxClicks) {
throw new IllegalStateException(
"Model operation took too many clicks (limit is " + maxClicks + "). Is there a cycle?");
}
clicked++;
HookOperationMode mode = click(context, task, result);
if (mode == HookOperationMode.BACKGROUND) {
result.recordInProgress();
return mode;
} else if (mode == HookOperationMode.ERROR) {
return mode;
}
}
// One last click in FINAL state
finalMode = click(context, task, result);
if (finalMode == HookOperationMode.FOREGROUND) {
conflictResolutionPolicy = ModelImplUtils.getConflictResolution(context);
focusConflictPresent = checkFocusConflicts(context, conflictResolutionPolicy, task, result);
}
} finally {
context.unregisterConflictWatchers(repositoryService);
FocusConstraintsChecker.exitCache();
//exitDefaultSearchExpressionEvaluatorCache();
exitAssociationSearchExpressionEvaluatorCache();
provisioningService.exitConstraintsCheckerCache();
context.reportProgress(new ProgressInformation(CLOCKWORK, EXITING));
}
// intentionally outside the "try-finally" block to start with clean caches
if (focusConflictPresent) {
assert finalMode == HookOperationMode.FOREGROUND;
finalMode = resolveFocusConflict(context, conflictResolutionPolicy, task, result);
} else if (context.getConflictResolutionAttemptNumber() > 0) {
LOGGER.info("Resolved update conflict on attempt number {}", context.getConflictResolutionAttemptNumber());
}
result.computeStatusIfUnknown();
return finalMode;
} catch (Throwable t) {
result.recordFatalError(t.getMessage(), t);
throw t;
} finally {
recordTraceAtEnd(context, trace, result);
if (tracingRequested) {
tracer.storeTrace(task, result);
TracingAppender.terminateCollecting(); // todo reconsider
LevelOverrideTurboFilter.cancelLoggingOverride(); // todo reconsider
}
result.computeStatusIfUnknown();
}
}
// todo check authorization in this method
private <F extends ObjectType> boolean startTracingIfRequested(LensContext<F> context, Task task,
OperationResultBuilder builder, OperationResult parentResult) throws SchemaException {
// If the result is already traced, we could abstain from recording the final trace ourselves.
// But I think it's more reasonable to do that, because e.g. if there is clockwork-inside-clockwork processing,
// we would like to have two traces, even if the second one is contained also within the first one.
TracingProfileType tracingProfile = ModelExecuteOptions.getTracingProfile(context.getOptions());
if (tracingProfile != null) {
builder.tracingProfile(tracer.compileProfile(tracingProfile, parentResult));
return true;
} else if (task.getTracingRequestedFor().contains(TracingRootType.CLOCKWORK_RUN)) {
TracingProfileType profile = task.getTracingProfile() != null ? task.getTracingProfile() : tracer.getDefaultProfile();
builder.tracingProfile(tracer.compileProfile(profile, parentResult));
return true;
} else {
return false;
}
}
private <F extends ObjectType> ClockworkRunTraceType recordTraceAtStart(LensContext<F> context, Task task,
OperationResult result) throws SchemaException {
ClockworkRunTraceType trace = new ClockworkRunTraceType(prismContext);
TracingLevelType level = result.getTracingLevel(trace.getClass());
if (level.ordinal() >= TracingLevelType.MINIMAL.ordinal()) {
trace.getText().add(context.debugDump()); // todo
}
trace.setInputLensContext(context.toLensContextType(getExportTypeTraceOrReduced(trace, result)));
result.addTrace(trace);
return trace;
}
private <F extends ObjectType> void recordTraceAtEnd(LensContext<F> context, ClockworkRunTraceType trace,
OperationResult result) throws SchemaException {
if (trace != null) {
trace.setOutputLensContext(context.toLensContextType(getExportTypeTraceOrReduced(trace, result)));
if (context.getFocusContext() != null) { // todo reconsider this
PrismObject<F> objectAny = context.getFocusContext().getObjectAny();
if (objectAny != null) {
trace.setFocusName(PolyString.getOrig(objectAny.getName()));
}
}
}
}
public <F extends ObjectType> LensContext<F> previewChanges(LensContext<F> context, Collection<ProgressListener> listeners, Task task, OperationResult result)
throws SchemaException, PolicyViolationException, ExpressionEvaluationException, ObjectNotFoundException, ObjectAlreadyExistsException, CommunicationException, ConfigurationException, SecurityViolationException {
try {
context.setPreview(true);
// context.setOptions(options);
LOGGER.trace("Preview changes context:\n{}", context.debugDumpLazily());
context.setProgressListeners(listeners);
projector.projectAllWaves(context, "preview", task, result);
context.distributeResource();
if (hookRegistry != null) {
for (ChangeHook hook : hookRegistry.getAllChangeHooks()) {
hook.invokePreview(context, task, result);
}
}
policyRuleSuspendTaskExecutor.execute(context, task, result);
} catch (ConfigurationException | SecurityViolationException | ObjectNotFoundException | SchemaException |
CommunicationException | PolicyViolationException | RuntimeException | ObjectAlreadyExistsException |
ExpressionEvaluationException e) {
ModelImplUtils.recordFatalError(result, e);
throw e;
} catch (PreconditionViolationException e) {
ModelImplUtils.recordFatalError(result, e);
// TODO: Temporary fix for 3.6.1
// We do not want to propagate PreconditionViolationException to model API as that might break compatibility
// ... and we do not really need that in 3.6.1
// TODO: expose PreconditionViolationException in 3.7
throw new SystemException(e);
}
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Preview changes output:\n{}", context.debugDump());
}
result.computeStatus();
result.cleanupResult();
return context;
}
private <F extends ObjectType> boolean checkFocusConflicts(LensContext<F> context, ConflictResolutionType resolutionPolicy,
Task task, OperationResult result) {
ConflictWatcher watcher = context.getFocusConflictWatcher();
if (watcher != null && resolutionPolicy != null && resolutionPolicy.getAction() != ConflictResolutionActionType.NONE &&
repositoryService.hasConflict(watcher, result)) {
LOGGER.debug("Found modify-modify conflict on {}", watcher);
return true;
} else {
return false;
}
}
private <F extends ObjectType> HookOperationMode resolveFocusConflict(LensContext<F> context,
ConflictResolutionType resolutionPolicy, Task task, OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException, ConfigurationException,
CommunicationException, SecurityViolationException, PolicyViolationException, ObjectAlreadyExistsException {
if (resolutionPolicy == null || resolutionPolicy.getAction() == ConflictResolutionActionType.NONE) {
return HookOperationMode.FOREGROUND;
}
PrismObject<F> focusObject = context.getFocusContext() != null ? context.getFocusContext().getObjectAny() : null;
ModelExecuteOptions options = new ModelExecuteOptions();
switch (resolutionPolicy.getAction()) {
case FAIL: throw new SystemException("Conflict detected while updating " + focusObject);
case LOG:
LOGGER.warn("Conflict detected while updating {}", focusObject);
return HookOperationMode.FOREGROUND;
case RECOMPUTE:
break;
case RECONCILE:
options.setReconcile();
break;
default:
throw new IllegalStateException("Unsupported conflict resolution action: " + resolutionPolicy.getAction());
}
// so, recompute is the action
LOGGER.debug("CONFLICT: Conflict detected while updating {}, recomputing (options={})", focusObject, options);
if (context.getFocusContext() == null) {
LOGGER.warn("No focus context, not possible to resolve conflict by focus recomputation"); // should really never occur
return HookOperationMode.FOREGROUND;
}
String oid = context.getFocusContext().getOid();
if (oid == null) {
LOGGER.warn("No focus OID, not possible to resolve conflict by focus recomputation"); // should really never occur
return HookOperationMode.FOREGROUND;
}
Class<F> focusClass = context.getFocusContext().getObjectTypeClass();
if (focusClass == null) {
LOGGER.warn("Focus class not known, not possible to resolve conflict by focus recomputation"); // should really never occur
return HookOperationMode.FOREGROUND;
}
if (TaskType.class.isAssignableFrom(focusClass)) {
return HookOperationMode.FOREGROUND; // this is actually quite expected, so don't bother anyone with that
}
if (!FocusType.class.isAssignableFrom(focusClass)) {
LOGGER.warn("Focus is not of FocusType (it is {}); not possible to resolve conflict by focus recomputation", focusClass.getName());
return HookOperationMode.FOREGROUND;
}
ConflictResolutionType focusConflictResolution = new ConflictResolutionType();
focusConflictResolution.setAction(ConflictResolutionActionType.ERROR);
options.setFocusConflictResolution(focusConflictResolution);
int preconditionAttempts = 0;
while (true) {
int attemptOld = context.getConflictResolutionAttemptNumber();
int attemptNew = attemptOld + 1;
boolean shouldExecuteAttempt = shouldExecuteAttempt(context, resolutionPolicy, attemptNew);
if (!shouldExecuteAttempt) {
LOGGER.warn("CONFLICT: Couldn't resolve conflict even after {} resolution attempt(s), giving up.", attemptOld);
return HookOperationMode.FOREGROUND;
}
delay(context, resolutionPolicy, attemptNew + preconditionAttempts);
PrismObject<F> focus = repositoryService.getObject(focusClass, oid, null, result);
LensContext<FocusType> contextNew = contextFactory.createRecomputeContext(focus, options, task, result);
contextNew.setProgressListeners(new ArrayList<>(emptyIfNull(context.getProgressListeners())));
contextNew.setConflictResolutionAttemptNumber(attemptNew);
LOGGER.debug("CONFLICT: Recomputing {} as reaction to conflict (options={}, attempts={},{}, readVersion={})",
context.getFocusContext().getHumanReadableName(), options, attemptNew, preconditionAttempts, contextNew.getFocusContext().getObjectReadVersion());
try {
// this is a recursion; but limited to max attempts which should not be a large number
HookOperationMode hookOperationMode = run(contextNew, task, result);
// This may be in fact a giveup after recompute that was not able to cleanly proceed.
LOGGER.debug("CONFLICT: Clean recompute (or giveup) of {} achieved (options={}, attempts={},{})",
context.getFocusContext().getHumanReadableName(), options, attemptNew, preconditionAttempts);
return hookOperationMode;
} catch (PreconditionViolationException e) {
preconditionAttempts++;
LOGGER.debug("CONFLICT: Recompute precondition failed (attempt {}, precondition attempt {}), trying again", attemptNew, preconditionAttempts);
if (preconditionAttempts < MAX_PRECONDITION_CONFLICT_RESOLUTION_ATTEMPTS) {
continue;
}
LOGGER.warn("CONFLICT: Couldn't resolve conflict even after {} resolution attempt(s) and {} precondition attempts, giving up.",
attemptOld, preconditionAttempts);
return HookOperationMode.FOREGROUND;
}
}
}
private <F extends ObjectType> boolean shouldExecuteAttempt(LensContext<F> context, @NotNull ConflictResolutionType resolutionPolicy, int attemptNew) {
int maxAttempts = defaultIfNull(resolutionPolicy.getMaxAttempts(), DEFAULT_MAX_CONFLICT_RESOLUTION_ATTEMPTS);
if (attemptNew > maxAttempts) {
return false;
}
return true;
}
private <F extends ObjectType> void delay(LensContext<F> context, @NotNull ConflictResolutionType resolutionPolicy, int attempts) {
long delayUnit = defaultIfNull(resolutionPolicy.getDelayUnit(), DEFAULT_CONFLICT_RESOLUTION_DELAY_UNIT);
for (int i = 0; i < attempts; i++) {
delayUnit *= 2;
}
long delay = (long) (Math.random() * delayUnit);
String message = "CONFLICT: Waiting "+delay+" milliseconds before starting conflict resolution (delay exponent: "+attempts+")";
// TODO convey information about waiting time after some GUI mechanism for displaying it is available
// (showing text messages is currently really ugly)
context.reportProgress(new ProgressInformation(WAITING, EXITING));
LOGGER.debug(message);
try {
Thread.sleep(delay);
} catch (InterruptedException e) {
// ignore
}
context.reportProgress(new ProgressInformation(WAITING, EXITING));
}
private void enterAssociationSearchExpressionEvaluatorCache() {
AssociationSearchExpressionEvaluatorCache cache = AssociationSearchExpressionEvaluatorCache.enterCache(
cacheConfigurationManager.getConfiguration(CacheType.LOCAL_ASSOCIATION_TARGET_SEARCH_EVALUATOR_CACHE));
if (cache.getClientContextInformation() == null) {
AssociationSearchExpressionCacheInvalidator invalidator = new AssociationSearchExpressionCacheInvalidator(cache);
cache.setClientContextInformation(invalidator);
changeNotificationDispatcher.registerNotificationListener((ResourceObjectChangeListener) invalidator);
changeNotificationDispatcher.registerNotificationListener((ResourceOperationListener) invalidator);
}
}
private void exitAssociationSearchExpressionEvaluatorCache() {
AssociationSearchExpressionEvaluatorCache cache = AssociationSearchExpressionEvaluatorCache.exitCache();
if (cache == null) {
LOGGER.error("exitAssociationSearchExpressionEvaluatorCache: cache instance was not found for the current thread");
return;
}
if (cache.getEntryCount() <= 0) {
Object invalidator = cache.getClientContextInformation();
if (!(invalidator instanceof AssociationSearchExpressionCacheInvalidator)) {
LOGGER.error("exitAssociationSearchExpressionEvaluatorCache: expected {}, got {} instead",
AssociationSearchExpressionCacheInvalidator.class, invalidator);
return;
}
changeNotificationDispatcher.unregisterNotificationListener((ResourceObjectChangeListener) invalidator);
changeNotificationDispatcher.unregisterNotificationListener((ResourceOperationListener) invalidator);
}
}
private void enterDefaultSearchExpressionEvaluatorCache() {
//DefaultSearchExpressionEvaluatorCache.enterCache(cacheConfigurationManager.getConfiguration(CacheType.LOCAL_DEFAULT_SEARCH_EVALUATOR_CACHE));
}
private void exitDefaultSearchExpressionEvaluatorCache() {
//DefaultSearchExpressionEvaluatorCache.exitCache();
}
private <F extends ObjectType> int getMaxClicks(LensContext<F> context, OperationResult result) throws SchemaException, ObjectNotFoundException {
PrismObject<SystemConfigurationType> systemConfiguration = systemObjectCache.getSystemConfiguration(result);
Integer maxClicks = SystemConfigurationTypeUtil.getMaxModelClicks(systemConfiguration);
if (maxClicks == null) {
return DEFAULT_MAX_CLICKS;
} else {
return maxClicks;
}
}
public <F extends ObjectType> HookOperationMode click(LensContext<F> context, Task task, OperationResult parentResult)
throws SchemaException, PolicyViolationException, ExpressionEvaluationException, ObjectNotFoundException,
ObjectAlreadyExistsException, CommunicationException, ConfigurationException, SecurityViolationException, PreconditionViolationException {
// DO NOT CHECK CONSISTENCY of the context here. The context may not be fresh and consistent yet. Project will fix
// that. Check consistency afterwards (and it is also checked inside projector several times).
if (context.getInspector() == null) {
context.setInspector(medic.getClockworkInspector());
}
OperationResult result = parentResult.subresult(Clockwork.class.getName() + ".click")
.addQualifier(context.getOperationQualifier())
.addArbitraryObjectAsContext("context", context)
.addArbitraryObjectAsContext("task", task)
.build();
ClockworkClickTraceType trace;
if (result.isTraced()) {
trace = new ClockworkClickTraceType(prismContext);
trace.setInputLensContext(context.toLensContextType(getExportType(trace, result)));
result.getTraces().add(trace);
} else {
trace = null;
}
try {
XMLGregorianCalendar now = clock.currentTimeXMLGregorianCalendar();
// We need to determine focus before auditing. Otherwise we will not know user
// for the accounts (unless there is a specific delta for it).
// This is ugly, but it is the easiest way now (TODO: cleanup).
contextLoader.determineFocusContext(context, task, result);
ModelState state = context.getState();
if (state == ModelState.INITIAL) {
medic.clockworkStart(context);
metadataManager.setRequestMetadataInContext(context, now, task);
context.getStats().setRequestTimestamp(now);
context.generateRequestIdentifierIfNeeded();
// We need to do this BEFORE projection. If we would do that after projection
// there will be secondary changes that are not part of the request.
audit(context, AuditEventStage.REQUEST, task, result, parentResult); // we need to take the overall ("run" operation result) not the current one
}
boolean recompute = false;
if (!context.isFresh()) {
LOGGER.trace("Context is not fresh -- forcing cleanup and recomputation");
recompute = true;
} else if (context.getExecutionWave() > context.getProjectionWave()) { // should not occur
LOGGER.warn("Execution wave is greater than projection wave -- forcing cleanup and recomputation");
recompute = true;
} else if (state == ModelState.PRIMARY && ModelExecuteOptions.getInitialPartialProcessing(context.getOptions()) != null) {
LOGGER.trace("Initial phase was run with initialPartialProcessing option -- forcing cleanup and recomputation");
recompute = true;
}
if (recompute) {
context.cleanup();
LOGGER.trace("Running projector with cleaned-up context for execution wave {}", context.getExecutionWave());
projector.project(context, "PROJECTOR ("+state+")", task, result);
} else if (context.getExecutionWave() == context.getProjectionWave()) {
LOGGER.trace("Resuming projector for execution wave {}", context.getExecutionWave());
projector.resume(context, "PROJECTOR ("+state+")", task, result);
} else {
LOGGER.trace("Skipping projection because the context is fresh and projection for current wave has already run");
}
if (!context.isRequestAuthorized()) {
clockworkAuthorizationHelper.authorizeContextRequest(context, task, result);
}
medic.traceContext(LOGGER, "CLOCKWORK (" + state + ")", "before processing", true, context, false);
if (InternalsConfig.consistencyChecks) {
try {
context.checkConsistence();
} catch (IllegalStateException e) {
throw new IllegalStateException(e.getMessage()+" in clockwork, state="+state, e);
}
}
if (InternalsConfig.encryptionChecks && !ModelExecuteOptions.isNoCrypt(context.getOptions())) {
context.checkEncrypted();
}
// LOGGER.info("CLOCKWORK: {}: {}", state, context);
switch (state) {
case INITIAL:
processInitialToPrimary(context, task, result);
break;
case PRIMARY:
processPrimaryToSecondary(context, task, result);
break;
case SECONDARY:
processSecondary(context, task, result, parentResult);
break;
case FINAL:
HookOperationMode mode = processFinal(context, task, result, parentResult);
medic.clockworkFinish(context);
return mode;
}
return invokeHooks(context, task, result);
} catch (CommunicationException | ConfigurationException | ExpressionEvaluationException | ObjectNotFoundException |
PolicyViolationException | SchemaException | SecurityViolationException | RuntimeException | Error |
ObjectAlreadyExistsException | PreconditionViolationException e) {
processClockworkException(context, e, task, result, parentResult);
throw e;
} finally {
if (trace != null) {
trace.setOutputLensContext(context.toLensContextType(getExportType(trace, result)));
}
result.computeStatusIfUnknown();
result.cleanupResultDeeply();
}
}
/**
* Invokes hooks, if there are any.
*
* @return
* - ERROR, if any hook reported error; otherwise returns
* - BACKGROUND, if any hook reported switching to background; otherwise
* - FOREGROUND (if all hooks reported finishing on foreground)
*/
private HookOperationMode invokeHooks(LensContext context, Task task, OperationResult result) throws ExpressionEvaluationException, ObjectNotFoundException, SchemaException, PolicyViolationException, CommunicationException, ConfigurationException, SecurityViolationException {
// TODO: following two parts should be merged together in later versions
// Execute configured scripting hooks
PrismObject<SystemConfigurationType> systemConfiguration = systemObjectCache.getSystemConfiguration(result);
// systemConfiguration may be null in some tests
if (systemConfiguration != null) {
ModelHooksType modelHooks = systemConfiguration.asObjectable().getModelHooks();
if (modelHooks != null) {
HookListType changeHooks = modelHooks.getChange();
if (changeHooks != null) {
for (HookType hookType: changeHooks.getHook()) {
String shortDesc;
if (hookType.getName() != null) {
shortDesc = "hook '"+hookType.getName()+"'";
} else {
shortDesc = "scripting hook in system configuration";
}
if (hookType.isEnabled() != null && !hookType.isEnabled()) {
// Disabled hook, skip
continue;
}
if (hookType.getState() != null) {
if (!context.getState().toModelStateType().equals(hookType.getState())) {
continue;
}
}
if (hookType.getFocusType() != null) {
if (context.getFocusContext() == null) {
continue;
}
QName hookFocusTypeQname = hookType.getFocusType();
ObjectTypes hookFocusType = ObjectTypes.getObjectTypeFromTypeQName(hookFocusTypeQname);
if (hookFocusType == null) {
throw new SchemaException("Unknown focus type QName "+hookFocusTypeQname+" in "+shortDesc);
}
Class focusClass = context.getFocusClass();
Class<? extends ObjectType> hookFocusClass = hookFocusType.getClassDefinition();
if (!hookFocusClass.isAssignableFrom(focusClass)) {
continue;
}
}
ScriptExpressionEvaluatorType scriptExpressionEvaluatorType = hookType.getScript();
if (scriptExpressionEvaluatorType == null) {
continue;
}
try {
evaluateScriptingHook(context, hookType, scriptExpressionEvaluatorType, shortDesc, task, result);
} catch (ExpressionEvaluationException e) {
LOGGER.error("Evaluation of {} failed: {}", shortDesc, e.getMessage(), e);
throw new ExpressionEvaluationException("Evaluation of "+shortDesc+" failed: "+e.getMessage(), e);
} catch (ObjectNotFoundException e) {
LOGGER.error("Evaluation of {} failed: {}", shortDesc, e.getMessage(), e);
throw new ObjectNotFoundException("Evaluation of "+shortDesc+" failed: "+e.getMessage(), e);
} catch (SchemaException e) {
LOGGER.error("Evaluation of {} failed: {}", shortDesc, e.getMessage(), e);
throw new SchemaException("Evaluation of "+shortDesc+" failed: "+e.getMessage(), e);
} catch (CommunicationException e) {
LOGGER.error("Evaluation of {} failed: {}", shortDesc, e.getMessage(), e);
throw new CommunicationException("Evaluation of "+shortDesc+" failed: "+e.getMessage(), e);
} catch (ConfigurationException e) {
LOGGER.error("Evaluation of {} failed: {}", shortDesc, e.getMessage(), e);
throw new ConfigurationException("Evaluation of "+shortDesc+" failed: "+e.getMessage(), e);
} catch (SecurityViolationException e) {
LOGGER.error("Evaluation of {} failed: {}", shortDesc, e.getMessage(), e);
throw new SecurityViolationException("Evaluation of "+shortDesc+" failed: "+e.getMessage(), e);
}
}
}
}
}
// Execute registered Java hooks
HookOperationMode resultMode = HookOperationMode.FOREGROUND;
if (hookRegistry != null) {
for (ChangeHook hook : hookRegistry.getAllChangeHooks()) {
HookOperationMode mode = hook.invoke(context, task, result);
if (mode == HookOperationMode.ERROR) {
resultMode = HookOperationMode.ERROR;
} else if (mode == HookOperationMode.BACKGROUND) {
if (resultMode != HookOperationMode.ERROR) {
resultMode = HookOperationMode.BACKGROUND;
}
}
}
}
return resultMode;
}
private void evaluateScriptingHook(LensContext context, HookType hookType,
ScriptExpressionEvaluatorType scriptExpressionEvaluatorType, String shortDesc, Task task, OperationResult result)
throws ExpressionEvaluationException, ObjectNotFoundException, SchemaException, CommunicationException, ConfigurationException, SecurityViolationException {
LOGGER.trace("Evaluating {}", shortDesc);
// TODO: it would be nice to cache this
// null output definition: this script has no output
ScriptExpression scriptExpression = scriptExpressionFactory.createScriptExpression(scriptExpressionEvaluatorType, null, context.getPrivilegedExpressionProfile(), expressionFactory, shortDesc, task, result);
ExpressionVariables variables = new ExpressionVariables();
variables.put(ExpressionConstants.VAR_PRISM_CONTEXT, prismContext, PrismContext.class);
variables.put(ExpressionConstants.VAR_MODEL_CONTEXT, context, ModelContext.class);
LensFocusContext focusContext = context.getFocusContext();
PrismObject focus = null;
if (focusContext != null) {
variables.put(ExpressionConstants.VAR_FOCUS, focusContext.getObjectAny(), focusContext.getObjectDefinition());
} else {
PrismObjectDefinition<ObjectType> def = prismContext.getSchemaRegistry().findObjectDefinitionByCompileTimeClass(ObjectType.class);
variables.put(ExpressionConstants.VAR_FOCUS, null, def);
}
ModelImplUtils.evaluateScript(scriptExpression, context, variables, false, shortDesc, task, result);
LOGGER.trace("Finished evaluation of {}", shortDesc);
}
private <F extends ObjectType> void switchState(LensContext<F> context, ModelState newState) {
medic.clockworkStateSwitch(context, newState);
context.setState(newState);
}
private <F extends ObjectType> void processInitialToPrimary(LensContext<F> context, Task task, OperationResult result) {
// Context loaded, nothing special do. Bump state to PRIMARY.
switchState(context, ModelState.PRIMARY);
}
private <F extends ObjectType> void processPrimaryToSecondary(LensContext<F> context, Task task, OperationResult result) throws PolicyViolationException, ObjectNotFoundException, SchemaException {
// Nothing to do now. The context is already recomputed.
switchState(context, ModelState.SECONDARY);
policyRuleSuspendTaskExecutor.execute(context, task, result);
}
private <F extends ObjectType> void processSecondary(LensContext<F> context, Task task, OperationResult result, OperationResult overallResult)
throws ObjectAlreadyExistsException, ObjectNotFoundException, SchemaException, CommunicationException, ConfigurationException,
SecurityViolationException, ExpressionEvaluationException, PolicyViolationException, PreconditionViolationException {
if (context.getExecutionWave() > context.getMaxWave() + 1) {
processSecondaryToFinal(context, task, result);
return;
}
Holder<Boolean> restartRequestedHolder = new Holder<>();
medic.partialExecute("execution",
(result1) -> {
boolean restartRequested = changeExecutor.executeChanges(context, task, result1);
restartRequestedHolder.setValue(restartRequested);
},
context.getPartialProcessingOptions()::getExecution,
Clockwork.class, context, result);
audit(context, AuditEventStage.EXECUTION, task, result, overallResult);
rotContextIfNeeded(context);
boolean restartRequested = false;
if (restartRequestedHolder.getValue() != null) {
restartRequested = restartRequestedHolder.getValue();
}
if (!restartRequested) {
// TODO what if restart is requested indefinitely?
context.incrementExecutionWave();
} else {
// explicitly rot context?
}
medic.traceContext(LOGGER, "CLOCKWORK (" + context.getState() + ")", "change execution", false, context, false);
}
private <F extends ObjectType> void processSecondaryToFinal(LensContext<F> context, Task task, OperationResult result) throws PolicyViolationException {
switchState(context, ModelState.FINAL);
policyRuleScriptExecutor.execute(context, task, result);
}
/**
* Force recompute for the next execution wave. Recompute only those contexts that were changed.
* This is more intelligent than context.rot()
*/
private <F extends ObjectType> void rotContextIfNeeded(LensContext<F> context) throws SchemaException {
boolean rot = false;
for (LensProjectionContext projectionContext: context.getProjectionContexts()) {
if (projectionContext.getWave() != context.getExecutionWave()) {
LOGGER.trace("Context rot: projection {} NOT rotten because of wrong wave number", projectionContext);
continue;
}
// if (!projectionContext.isDoReconciliation()) { // meaning volatility is NONE
// LOGGER.trace("Context rot: projection {} NOT rotten because the resource is non-volatile", projectionContext);
// continue;
// }
ObjectDelta<ShadowType> execDelta = projectionContext.getExecutableDelta();
if (isShadowDeltaSignificant(execDelta)) {
LOGGER.debug("Context rot: projection {} rotten because of executable delta {}", projectionContext, execDelta);
projectionContext.setFresh(false);
projectionContext.setFullShadow(false);
rot = true;
// Propagate to higher-order projections
for (LensProjectionContext relCtx: LensUtil.findRelatedContexts(context, projectionContext)) {
relCtx.setFresh(false);
relCtx.setFullShadow(false);
}
} else {
LOGGER.trace("Context rot: projection {} NOT rotten because no delta", projectionContext);
}
}
LensFocusContext<F> focusContext = context.getFocusContext();
if (focusContext != null) {
ObjectDelta<F> execDelta = focusContext.getWaveDelta(context.getExecutionWave());
if (execDelta != null && !execDelta.isEmpty()) {
LOGGER.debug("Context rot: context rotten because of focus execution delta {}", execDelta);
rot = true;
}
if (rot) {
// It is OK to refresh focus all the time there was any change. This is cheap.
focusContext.setFresh(false);
}
//remove secondary deltas from other than execution wave - we need to recompute them..
// cleanUpSecondaryDeltas(context);
}
if (rot) {
context.setFresh(false);
}
}
// // TODO this is quite unclear. Originally here was keeping the delta from the current wave (plus delta from wave #1).
// // The reason was not clear.
// // Let us erase everything.
// private <F extends ObjectType> void cleanUpSecondaryDeltas(LensContext<F> context){
// LensFocusContext focusContext = context.getFocusContext();
// ObjectDeltaWaves<F> executionWaveDeltaList = focusContext.getSecondaryDeltas();
// executionWaveDeltaList.clear();
// }
private <P extends ObjectType> boolean isShadowDeltaSignificant(ObjectDelta<P> delta) {
if (delta == null || delta.isEmpty()) {
return false;
}
if (delta.isAdd() || delta.isDelete()) {
return true;
}
Collection<? extends ItemDelta<?,?>> attrDeltas = delta.findItemDeltasSubPath(ShadowType.F_ATTRIBUTES);
if (attrDeltas != null && !attrDeltas.isEmpty()) {
return true;
}
return false;
}
private <F extends ObjectType> HookOperationMode processFinal(LensContext<F> context, Task task, OperationResult result, OperationResult overallResult)
throws ObjectAlreadyExistsException, ObjectNotFoundException, SchemaException, CommunicationException, ConfigurationException,
SecurityViolationException, ExpressionEvaluationException, PolicyViolationException, PreconditionViolationException {
auditFinalExecution(context, task, result, overallResult);
logFinalReadable(context, task, result);
recordOperationExecution(context, null, task, result);
migrator.executeAfterOperationMigration(context, result);
HookOperationMode opmode = personaProcessor.processPersonaChanges(context, task, result);
if (opmode == HookOperationMode.BACKGROUND) {
return opmode;
}
return triggerReconcileAffected(context, task, result);
}
private <F extends ObjectType> void recordOperationExecution(LensContext<F> context, Throwable clockworkException,
Task task, OperationResult result) {
boolean skip = context.getInternalsConfiguration() != null &&
context.getInternalsConfiguration().getOperationExecutionRecording() != null &&
Boolean.TRUE.equals(context.getInternalsConfiguration().getOperationExecutionRecording().isSkip());
if (!skip) {
XMLGregorianCalendar now = clock.currentTimeXMLGregorianCalendar();
try {
LOGGER.trace("recordOperationExecution starting; task = {}, clockworkException = {}", task, clockworkException);
recordFocusOperationExecution(context, now, clockworkException, task, result);
for (LensProjectionContext projectionContext : context.getProjectionContexts()) {
recordProjectionOperationExecution(context, projectionContext, now, task, result);
}
} catch (Throwable t) {
LoggingUtils.logUnexpectedException(LOGGER, "Couldn't record operation execution. Model context:\n{}", t,
context.debugDump());
// Let us ignore this for the moment. It should not have happened, sure. But it's not that crucial.
// Administrator will be able to learn about the problem from the log.
}
} else {
LOGGER.trace("Skipping operation execution recording (as set in system configuration)");
}
}
private <F extends ObjectType> void recordFocusOperationExecution(LensContext<F> context, XMLGregorianCalendar now,
Throwable clockworkException, Task task, OperationResult result)
throws SchemaException, ObjectAlreadyExistsException, ObjectNotFoundException {
LensFocusContext<F> focusContext = context.getFocusContext();
if (focusContext == null || focusContext.isDelete()) {
LOGGER.trace("focusContext is null or 'delete', not recording focus operation execution");
return;
}
PrismObject<F> objectNew = focusContext.getObjectNew();
Validate.notNull(objectNew, "No focus object even if the context is not of 'delete' type");
List<LensObjectDeltaOperation<F>> executedDeltas;
if (clockworkException == null) {
executedDeltas = focusContext.getExecutedDeltas();
} else {
executedDeltas = new ArrayList<>(focusContext.getExecutedDeltas());
LensObjectDeltaOperation<F> odo = new LensObjectDeltaOperation<>();
ObjectDelta<F> primaryDelta = focusContext.getPrimaryDelta();
if (primaryDelta != null) {
odo.setObjectDelta(primaryDelta);
} else {
@SuppressWarnings({"unchecked", "raw"})
Class<F> fClass = (Class<F>) objectNew.asObjectable().getClass();
ObjectDelta<F> fakeDelta = prismContext.deltaFactory().object().create(fClass, ChangeType.MODIFY);
odo.setObjectDelta(fakeDelta);
}
odo.setExecutionResult(result); // we rely on the fact that 'result' already contains record of the exception
executedDeltas.add(odo);
}
LOGGER.trace("recordFocusOperationExecution: executedDeltas: {}", executedDeltas.size());
recordOperationExecution(objectNew, false, executedDeltas, now, context.getChannel(),
getSkipWhenSuccess(context), task, result);
}
private <F extends ObjectType> boolean getSkipWhenSuccess(LensContext<F> context) {
return context.getInternalsConfiguration() != null &&
context.getInternalsConfiguration().getOperationExecutionRecording() != null &&
Boolean.TRUE.equals(context.getInternalsConfiguration().getOperationExecutionRecording().isSkipWhenSuccess());
}
private <F extends ObjectType> void recordProjectionOperationExecution(LensContext<F> context,
LensProjectionContext projectionContext, XMLGregorianCalendar now, Task task, OperationResult result)
throws SchemaException, ObjectAlreadyExistsException, ObjectNotFoundException {
PrismObject<ShadowType> object = projectionContext.getObjectAny();
if (object == null) {
return; // this can happen
}
recordOperationExecution(object, true, projectionContext.getExecutedDeltas(), now,
context.getChannel(), getSkipWhenSuccess(context), task, result);
}
private <F extends ObjectType> void recordOperationExecution(PrismObject<F> object, boolean deletedOk,
List<LensObjectDeltaOperation<F>> executedDeltas, XMLGregorianCalendar now,
String channel, boolean skipWhenSuccess, Task task, OperationResult result)