package com.identityworksllc.iiq.common;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.identityworksllc.iiq.common.vo.OutcomeType;
import sailpoint.api.Aggregator;
import sailpoint.api.Identitizer;
import sailpoint.api.RequestManager;
import sailpoint.api.SailPointContext;
import sailpoint.connector.Connector;
import sailpoint.connector.ConnectorException;
import sailpoint.connector.ConnectorFactory;
import sailpoint.object.*;
import sailpoint.object.ProvisioningPlan.AccountRequest;
import sailpoint.object.ProvisioningPlan.AttributeRequest;
import sailpoint.request.AggregateRequestExecutor;
import sailpoint.server.Environment;
import sailpoint.service.ServiceHandler;
import sailpoint.tools.CloseableIterator;
import sailpoint.tools.GeneralException;
import sailpoint.tools.Message;
import sailpoint.tools.Util;
import sailpoint.tools.xml.XMLReferenceResolver;

import java.util.*;

/**
 * This class contains several utilities for dealing with accounts and applications
 */
@SuppressWarnings("unused")
public class AccountUtilities extends AbstractBaseUtility {

        /**
         * The options class for {@link #aggregateAccount(AggregateOptions)}, allowing expansion
         * of the inputs without having to break backwards compatibility.
         */
        public static class AggregateOptions {
                /**
                 * The name of the account to pull via getObject()
                 */
                private String accountName;

                /**
                 * The options to pass to the Aggregator
                 */
                private Map<String, Object> aggregateOptions;

                /**
                 * The Application object, which should be attached to the current context
                 */
                private Application application;

                /**
                 * The application name
                 */
                private String applicationName;

                /**
                 * The Connector object
                 */
                private Connector connector;

                /**
                 * True if we should force aggregation even for connectors that don't explicitly support getObject()
                 */
                private boolean forceAggregate;

                /**
                 * True if we should consider the input to be incomplete
                 */
                private boolean incomplete;

                /**
                 * True if we should attempt to refresh the Identity afterwards
                 */
                private boolean refreshIdentity;

                /**
                 * Options to pass to the Identitizer
                 */
                private Map<String, Object> refreshOptions;

                /**
                 * The ResourceObject that will be aggregated
                 */
                private ResourceObject resourceObject;

                /**
                 * True if we should run the customization rules (should set if this is a Map input)
                 */
                private boolean runAppCustomization;

                /**
                 * No-args constructor allowing all options to be configured using setters
                 */
                public AggregateOptions() {
                        this.aggregateOptions = new HashMap<>();
                        this.refreshOptions = new HashMap<>();
                }

                /**
                 * Constructs an AggregateOptions for importing the given Map as though it was returned
                 * from the given application.
                 *
                 * @param applicationName The name of the Application
                 * @param inputs The input data
                 */
                public AggregateOptions(String applicationName, Map<String, Object> inputs) {
                        this();
                        this.applicationName = applicationName;

                        ResourceObject resourceObject = new ResourceObject();
                        resourceObject.setAttributes(new Attributes<>(inputs));

                        this.resourceObject = resourceObject;
                        this.runAppCustomization = true;
                }

                /**
                 * Constructs an AggregateOptions for importing the given Map as though it was returned
                 * from the given application.
                 *
                 * @param application The application
                 * @param inputs The input data
                 */
                public AggregateOptions(Application application, Map<String, Object> inputs) throws GeneralException {
                        this();
                        this.application = application;
                        this.applicationName = application.getName();
                        this.connector = ConnectorFactory.getConnector(application, null);

                        ResourceObject resourceObject = new ResourceObject();
                        resourceObject.setAttributes(new Attributes<>(inputs));

                        this.resourceObject = resourceObject;
                        this.runAppCustomization = true;
                }

                /**
                 * Constructs an AggregateOptions for importing the given Map as though it was returned
                 * from the given application.
                 *
                 * @param application The application
                 * @param inputs The input data
                 */
                public AggregateOptions(Application application, ResourceObject inputs) throws GeneralException {
                        this();
                        this.application = application;
                        this.applicationName = application.getName();
                        this.connector = ConnectorFactory.getConnector(application, null);
                        this.resourceObject = inputs;
                }

                /**
                 * Adds a new aggregate option to the existing Map, creating the Map if it is
                 * null.
                 *
                 * @param option The option
                 * @param value The value
                 */
                public void addAggregateOption(String option, Object value) {
                        if (this.aggregateOptions == null) {
                                this.aggregateOptions = new HashMap<>();
                        }

                        this.aggregateOptions.put(option, value);
                }

                public String getAccountName() {
                        return accountName;
                }

                public Map<String, Object> getAggregateOptions() {
                        return aggregateOptions;
                }

                public Application getApplication() {
                        return application;
                }

                /**
                 * Gets the application object if it is already set. Otherwise, loads it using the
                 * application name.
                 *
                 * @param context The context to use to load the application
                 * @return The Application object
                 * @throws GeneralException if the application does not exist
                 */
                public Application getApplication(SailPointContext context) throws GeneralException {
                        if (this.application != null) {
                                return this.application;
                        } else {
                                return context.getObject(Application.class, this.applicationName);
                        }
                }

                public String getApplicationName() {
                        return applicationName;
                }

                public Connector getConnector() {
                        return connector;
                }

                public Map<String, Object> getRefreshOptions() {
                        return refreshOptions;
                }

                public ResourceObject getResourceObject() {
                        return resourceObject;
                }

                public boolean isForceAggregate() {
                        return forceAggregate;
                }

                public boolean isIncomplete() {
                        return incomplete;
                }

                public boolean isRefreshIdentity() {
                        return refreshIdentity;
                }

                public boolean isRunAppCustomization() {
                        return runAppCustomization;
                }

                public void setAccountName(String accountName) {
                        this.accountName = accountName;
                }

                public void setAggregateOptions(Map<String, Object> aggregateOptions) {
                        this.aggregateOptions = aggregateOptions;
                }

                public void setApplication(Application application) {
                        this.application = application;
                }

                public void setApplicationName(String applicationName) {
                        this.applicationName = applicationName;
                }

                public void setConnector(Connector connector) {
                        this.connector = connector;
                }

                public void setCorrelateOnly(boolean flag) {
                        this.addAggregateOption(Aggregator.ARG_CORRELATE_ONLY, flag);
                }

                public void setForceAggregate(boolean forceAggregate) {
                        this.forceAggregate = forceAggregate;
                }

                public void setIncomplete(boolean incomplete) {
                        this.incomplete = incomplete;
                }

                public void setRefreshIdentity(boolean refreshIdentity) {
                        this.refreshIdentity = refreshIdentity;
                }

                public void setRefreshOptions(Map<String, Object> refreshOptions) {
                        this.refreshOptions = refreshOptions;
                }

                public void setResourceObject(ResourceObject resourceObject) {
                        this.resourceObject = resourceObject;
                }

                public void setRunAppCustomization(boolean runAppCustomization) {
                        this.runAppCustomization = runAppCustomization;
                }

                public void setTrace(boolean flag) {
                        this.addAggregateOption(Aggregator.ARG_TRACE, flag);
                }
        }

        /**
         * The list of tokens that likely indicate a password type variable
         */
        private static final List<String> likelyPasswordTokens = Arrays.asList("password", "unicodepwd", "secret", "private");

        /**
         * Fixes the Identity of the given Resource Object
         * @param resourceObject The ResourceObject input to modify
         * @param application The Application that the ResourceObject belongs to
         */
        public static void fixResourceObjectIdentity(ResourceObject resourceObject, Application application) {
                if (Util.isNullOrEmpty(resourceObject.getIdentity())) {
                        String identityField = application.getAccountSchema().getIdentityAttribute();
                        if (Util.isNotNullOrEmpty(identityField)) {
                                String identityValue = resourceObject.getStringAttribute(identityField);
                                if (Util.isNotNullOrEmpty(identityValue)) {
                                        resourceObject.setIdentity(identityValue);
                                }
                        }

                        String displayField = application.getAccountSchema().getDisplayAttribute();
                        if (Util.isNotNullOrEmpty(displayField)) {
                                String displayValue = resourceObject.getStringAttribute(displayField);
                                if (Util.isNotNullOrEmpty(displayValue)) {
                                        resourceObject.setDisplayName(displayValue);
                                }
                        }
                }
        }
        /**
         * The internal provisioning utilities object
         */
        private final ProvisioningUtilities provisioningUtilities;

        /**
         * Constructor
         *
         * @param c The current SailPointContext
         */
        public AccountUtilities(SailPointContext c) {
                this(c, new ProvisioningUtilities(c));
        }

        /**
         * Constructor allowing you to pass a new ProvisioningUtilities
         *
         * @param c The context
         * @param provisioningUtilities A pre-existing provisioning utilities
         */
        public AccountUtilities(SailPointContext c, ProvisioningUtilities provisioningUtilities) {
                super(c);

                this.provisioningUtilities = Objects.requireNonNull(provisioningUtilities);
        }

        /**
         * Aggregates the account, given the options as a Map. The Map will be decoded
         * into an {@link AggregateOptions} object.
         *
         * The return value will also be a Map.
         *
         * This simplified interface is intended for situations where this class is only
         * available via reflection, such as a third-party plugin.
         *
         * @param optionsMap The options map
         * @return The {@link AggregationOutcome}, serialized to a Map via Jackson
         * @throws GeneralException on any errors
         */
        @SuppressWarnings({"unchecked", "rawtypes"})
        public Map<String, Object> aggregateAccount(Map<String, Object> optionsMap) throws GeneralException {
                AggregateOptions options = new AggregateOptions();

                if (optionsMap.get("applicationName") instanceof String) {
                        options.setApplicationName((String) optionsMap.get("applicationName"));
                } else if (optionsMap.get("application") instanceof Application) {
                        options.setApplication((Application) optionsMap.get("application"));
                } else {
                        throw new GeneralException("Your input map must include either 'applicationName' or 'application'");
                }

                boolean defaultRunCustomization = false;
                boolean needsNativeIdentity = true;
                if (optionsMap.get("resourceObject") != null) {
                        Object ro = optionsMap.get("resourceObject");
                        if (ro instanceof Map) {
                                ResourceObject resourceObject = new ResourceObject();
                                resourceObject.setAttributes(new Attributes((Map)ro));
                                options.setResourceObject(resourceObject);
                                needsNativeIdentity = false;
                                defaultRunCustomization = true;
                        } else if (ro instanceof ResourceObject) {
                                options.setResourceObject((ResourceObject) ro);
                                needsNativeIdentity = false;
                                defaultRunCustomization = true;
                        } else {
                                throw new GeneralException("The input map has a 'resourceObject', but is neither a Map nor a ResourceObject");
                        }
                }

                if (optionsMap.get("nativeIdentity") != null) {
                        options.setAccountName((String) optionsMap.get("nativeIdentity"));
                } else if (optionsMap.get("accountName") != null) {
                        options.setAccountName((String) optionsMap.get("accountName"));
                } else if (needsNativeIdentity) {
                        throw new GeneralException("Your input map must include a 'resourceObject' and/or 'nativeIdentity' or 'accountName'");
                }

                if (optionsMap.containsKey("runAppCustomization")) {
                        options.setRunAppCustomization(Utilities.isFlagSet(optionsMap.get("runAppCustomization")));
                } else {
                        options.setRunAppCustomization(defaultRunCustomization);
                }

                options.setRunAppCustomization(Utilities.isFlagSet(optionsMap.get("incomplete")));

                if (optionsMap.get("aggregateOptions") instanceof Map) {
                        options.setAggregateOptions((Map) optionsMap.get("aggregateOptions"));
                }

                AggregationOutcome outcome = aggregateAccount(options);

                try {
                        ObjectMapper jacksonMapper = new ObjectMapper();

                        return jacksonMapper.convertValue(outcome, Map.class);
                } catch(Exception e) {
                        throw new GeneralException("Aggregation finished, but serializing the output to Map failed", e);
                }
        }

        /**
         * Executes an aggregation according to the given options. This may be invoked directly or
         * via one of the many overloaded shortcut methods.
         *
         * @param options The aggregation options
         * @return An AggregationOutcome object, with various
         * @throws GeneralException if any aggregation failures occur
         */
        public AggregationOutcome aggregateAccount(AggregateOptions options) throws GeneralException {
                final Set<String> allowForce = new HashSet<>(Collections.singletonList("DelimitedFile"));

                Application appObject = options.getApplication(context);

                if (options.application == null) {
                        options.application = appObject;
                }

                if (options.connector == null) {
                        options.connector = ConnectorFactory.getConnector(appObject, null);
                }

                AggregationOutcome outcome = new AggregationOutcome(options.getApplicationName(), options.getAccountName());
                outcome.setStartTimeMillis(System.currentTimeMillis());

                // This will only be the case if we have not actually done the getObject() yet
                if (options.resourceObject == null) {
                        try {
                                for (Application.Feature feature : options.connector.getApplication().getFeatures()) {
                                        if (feature.equals(Application.Feature.NO_RANDOM_ACCESS)) {
                                                if (!(options.forceAggregate && allowForce.contains(appObject.getType()))) {
                                                        outcome.setStatus(OutcomeType.Skipped);
                                                        outcome.addMessage("Application " + appObject.getName() + " does not support random access");
                                                        return outcome;
                                                }
                                        }
                                }
                                if (appObject.getType().equals("ServiceNow")) {
                                        options.resourceObject = doServiceNowConnectorHack("sys_id", options.accountName, appObject, false);
                                } else {
                                        options.resourceObject = options.connector.getObject("account", options.accountName, null);
                                }
                                if (options.resourceObject == null) {
                                        outcome.setStatus(OutcomeType.Skipped);
                                        outcome.addMessage(Message.warn("getObject() returned null"));
                                        log.warn("getObject() for application = '" + options.application.getName() + "', native identity = '" + options.accountName + "' returned null");
                                        return outcome;
                                }
                        } catch (ConnectorException onfe) {
                                throw new GeneralException(onfe);
                        }
                }

                fixResourceObjectIdentity(options.resourceObject, options.application);

                // Normally, this is done as part of getObject() by the connector, so we only want to run it
                // in the case of a truly manual aggregation, i.e., constructing a fake ResourceObject to pass in
                if (options.runAppCustomization) {
                        Rule customizationRule = appObject.getCustomizationRule();

                        ResourceObject customizationOutput = options.resourceObject;

                        if (customizationRule != null) {
                                customizationOutput = runCustomizationRule(customizationRule, options, outcome);
                        }

                        // Abort if customization failed
                        if (outcome.getStatus() == OutcomeType.Failure || outcome.getStatus() == OutcomeType.Warning) {
                                log.warn("Application customization rule failed");
                                return outcome;
                        }

                        if (customizationOutput == null) {
                                outcome.setStatus(OutcomeType.Skipped);
                                outcome.addMessage(Message.warn("Application customization rule returned null"));
                                log.warn("Application customization rule for application = '" + options.application.getName() + "', native identity = '" + options.accountName + "' returned null");
                                return outcome;
                        }

                        options.resourceObject = customizationOutput;

                        fixResourceObjectIdentity(options.resourceObject, options.application);

                        if (appObject.getAccountSchema() != null && appObject.getAccountSchema().getCustomizationRule() != null) {
                                customizationOutput = runCustomizationRule(appObject.getAccountSchema().getCustomizationRule(), options, outcome);
                        }

                        // Abort if customization failed
                        if (outcome.getStatus() == OutcomeType.Failure || outcome.getStatus() == OutcomeType.Warning) {
                                log.warn("Application customization rule failed");
                                return outcome;
                        }

                        if (customizationOutput == null) {
                                outcome.setStatus(OutcomeType.Skipped);
                                outcome.addMessage(Message.warn("Schema customization rule returned null"));
                                log.warn("Schema customization rule for application = '" + options.application.getName() + "', native identity = '" + options.accountName + "' returned null");
                                return outcome;
                        }

                        options.resourceObject = customizationOutput;

                        fixResourceObjectIdentity(options.resourceObject, options.application);
                }

                if (options.incomplete) {
                        options.resourceObject.setIncomplete(true);
                }

                Attributes<String, Object> argMap = new Attributes<>();
                argMap.put(Identitizer.ARG_PROMOTE_ATTRIBUTES, true);
                argMap.put(Aggregator.ARG_NO_OPTIMIZE_REAGGREGATION, true);
                argMap.put(Identitizer.ARG_ALWAYS_REFRESH_MANAGER, true);

                if (options.aggregateOptions != null) {
                        argMap.putAll(options.aggregateOptions);
                }

                Aggregator agg = new Aggregator(context, argMap);
                agg.setMaxIdentities(1);
                TaskResult taskResult = agg.aggregate(appObject, options.resourceObject);

                if (null == taskResult) {
                        throw new IllegalStateException("Aggregator.aggregate() returned null unexpectedly");
                }

                outcome.setTaskResult(taskResult);
                outcome.setNativeIdentity(options.resourceObject.getIdentity());
                outcome.setStatus(OutcomeType.Success);

                if (options.refreshIdentity) {
                        QueryOptions qo = new QueryOptions();
                        qo.addFilter(Filter.eq("application.name", options.application.getName()));
                        qo.addFilter(Filter.eq("nativeIdentity", options.resourceObject.getIdentity()));

                        List<Link> linkCandidates = context.getObjects(Link.class, qo);

                        if (linkCandidates.size() > 1) {
                                String warning = "Aggregation produced more than one Link with the same Native Identity: " + options.resourceObject.getIdentity();
                                log.warn(warning);
                                outcome.addMessage(Message.warn(warning));
                        } else if (linkCandidates.size() == 1) {
                                Link theLink = linkCandidates.get(0);
                                Identity identity = theLink.getIdentity();
                                if (identity != null) {
                                        BaseIdentityUtilities identityUtilities = new BaseIdentityUtilities(context);
                                        Attributes<String, Object> refreshOptions = identityUtilities.getDefaultRefreshOptions(false);
                                        if (!Util.isEmpty(options.refreshOptions)) {
                                                refreshOptions.putAll(options.refreshOptions);
                                        }
                                        identityUtilities.refresh(identity, refreshOptions);

                                        outcome.setIdentityName(identity.getName());
                                        outcome.setRefreshed(true);
                                }
                        } else {
                                String warning = "After aggregation, no Link found with application = " + appObject.getName() + ", native identity = " + options.resourceObject.getIdentity();
                                log.warn(warning);
                                outcome.addMessage(Message.warn(warning));
                        }
                }

                outcome.setStopTimeMillis(System.currentTimeMillis());

                return outcome;
        }

        /**
         * @see #aggregateAccount(Application, Connector, ResourceObject, boolean, Map)
         */
        public AggregationOutcome aggregateAccount(Application appObject, Connector appConnector, ResourceObject rObj, boolean refreshIdentity) throws GeneralException {
                return this.aggregateAccount(appObject, appConnector, rObj, refreshIdentity, new HashMap<>());
        }

        /**
         * Aggregates the given {@link ResourceObject} into IIQ as though it was pulled in via an aggregation task
         * @param appObject The application objet
         * @param appConnector The connector object
         * @param resource The ResourceObject, either pulled from the Connector or constructed
         * @param refreshIdentity If true, refresh the Identity after aggregation
         * @param aggregateArguments Any additional parameters to add to the aggregator
         * @return The aggrgation outcomes
         * @throws GeneralException if any IIQ failure occurs
         */
        public AggregationOutcome aggregateAccount(Application appObject, Connector appConnector, ResourceObject resource, boolean refreshIdentity, Map<String, Object> aggregateArguments) throws GeneralException {
                AggregateOptions options = new AggregateOptions();
                options.application = appObject;
                options.applicationName = appObject.getName();
                options.connector = appConnector;
                options.resourceObject = resource;
                options.aggregateOptions = aggregateArguments;
                options.refreshIdentity = refreshIdentity;

                return aggregateAccount(options);
        }

        /**
         * @see #aggregateAccount(String, Map, Map)
         */
        public AggregationOutcome aggregateAccount(String application, Map<String, Object> resource) throws GeneralException {
                return aggregateAccount(application, resource, null);
        }

        /**
         * Aggregates the given account information into IIQ, given the Map as the resource object data
         * @param application The application name
         * @param resource The data representing the account fields
         * @throws GeneralException if any IIQ failure occurs
         */
        public AggregationOutcome aggregateAccount(String application, Map<String, Object> resource, Map<String, Object> arguments) throws GeneralException {
                ResourceObject resourceObject = new ResourceObject();
                resourceObject.setAttributes(new Attributes<>(resource));
        Application appObject = context.getObjectByName(Application.class, application);
        if (appObject == null) {
                throw new GeneralException("No such application: " + application);
                }

        // Fix the resource object Identity field
        fixResourceObjectIdentity(resourceObject, appObject);

        String appConnName = appObject.getConnector();
        Connector appConnector = ConnectorFactory.getConnector(appObject, null);
        if (null == appConnector) {
            throw new GeneralException("Failed to construct an instance of connector [" + appConnName + "]");
        }

                AggregateOptions options = new AggregateOptions();
                options.application = appObject;
                options.applicationName = appObject.getName();
                options.connector = appConnector;
                options.resourceObject = resourceObject;
                options.aggregateOptions = arguments;
                options.runAppCustomization = true;

                return aggregateAccount(options);
        }

        /**
         * @see #aggregateAccount(String, String, boolean, Map)
         */
        public AggregationOutcome aggregateAccount(String application, String id, boolean refreshIdentity) throws GeneralException {
                return aggregateAccount(application, id, refreshIdentity, false, new HashMap<>());
        }

        /**
         * Aggregates the given account information into IIQ, given only a nativeIdentity. Additionally, optionally refresh the user.
         *
         * The Application in question must support the "random access" feature (i.e. it must *not* have the NO_RANDOM_ACCESS flag defined).
         *
         * @param application The application name to check
         * @param id The native identity on the target system
         * @param refreshIdentity If true, the identity will be refreshed after aggregation
         * @param arguments Any optional arguments to pass to the Aggregator
         * @throws GeneralException if any IIQ failure occurs
         */
        public AggregationOutcome aggregateAccount(String application, String id, boolean refreshIdentity, Map<String, Object> arguments) throws GeneralException {
                return aggregateAccount(application, id, refreshIdentity, false, arguments);
        }

        /**
         * @see #aggregateAccount(String, String, boolean, boolean, Map)
         */
        public AggregationOutcome aggregateAccount(String application, String id, boolean refreshIdentity, boolean forceAggregate) throws GeneralException {
                return aggregateAccount(application, id, refreshIdentity, forceAggregate, new HashMap<>());
        }

        /**
         * Aggregates the given account information into IIQ, given only a nativeIdentity. Additionally, optionally refresh the user.
         *
         * The Application in question must support the "random access" feature (i.e. it must *not* have the NO_RANDOM_ACCESS flag defined).
         *
         * @param application The application name to check
         * @param id The native identity on the target system
         * @param refreshIdentity If true, the identity will be refreshed after aggregation
         * @param forceAggregate If true, we may override what Sailpoint tells us about the features of certain applications
         * @param arguments Any optional arguments to pass to the Aggregator
         * @throws GeneralException if any IIQ failure occurs
         */
        public AggregationOutcome aggregateAccount(String application, String id, boolean refreshIdentity, boolean forceAggregate, Map<String, Object> arguments) throws GeneralException {
        Application appObject = context.getObjectByName(Application.class, application);
        if (appObject == null) {
                throw new GeneralException("Invalid application name: " + application);
                }

        String appConnName = appObject.getConnector();
        Connector appConnector = ConnectorFactory.getConnector(appObject, null);
        if (null == appConnector) {
            throw new GeneralException("Failed to construct an instance of connector [" + appConnName + "]");
        }

        AggregateOptions options = new AggregateOptions();
        options.applicationName = appObject.getName();
        options.application = appObject;
        options.connector = appConnector;
        options.accountName = id;
        options.forceAggregate = forceAggregate;
        options.refreshIdentity = refreshIdentity;
        options.aggregateOptions = arguments;

        return aggregateAccount(options);
        }

        /**
         * Aggregates the given account in the background via the Aggregate Request request
         * type. Uses a slightly future event date to fire the request asynchronously.
         *
         * @param targetIdentity The target identity
         * @param application The application from which the account is being aggregated
         * @param ro The resource object to process asynchronously
         * @throws GeneralException on failures
         */
        public void backgroundAggregateAccount(Identity targetIdentity, Application application, ResourceObject ro) throws GeneralException {
                Map<String, Object> resourceObject = new HashMap<>(ro.getAttributes());
                Attributes<String, Object> requestParams = new Attributes<>();
                requestParams.put(AggregateRequestExecutor.ARG_RESOURCE_OBJECT, resourceObject);
                requestParams.put(AggregateRequestExecutor.ARG_IDENTITY_NAME, Objects.requireNonNull(targetIdentity).getName());
                requestParams.put(AggregateRequestExecutor.ARG_APP_NAME, Objects.requireNonNull(application).getName());

                Map<String, Object> aggregationOptions = new HashMap<>();
                aggregationOptions.put(ServiceHandler.ARG_AGGREGATE_NO_RANDOM_ACCESS, true);
                requestParams.put(AggregateRequestExecutor.ARG_AGG_OPTIONS, aggregationOptions);

                RequestDefinition requestDefinition = context.getObjectByName(RequestDefinition.class, AggregateRequestExecutor.DEF_NAME);

                Request request = new Request();
                request.setEventDate(new Date(System.currentTimeMillis() + 250));
                request.setDefinition(requestDefinition);
                request.setAttributes(requestParams);

                RequestManager.addRequest(context, request);
        }

        /**
         * Creates the given account
         * @param user The user to add the account to
         * @param applicationName The application name
         * @param map The account data
         * @throws GeneralException If any failures occur
         */
        public void createAccount(Identity user, String applicationName, Map<String, Object> map) throws GeneralException {
                ProvisioningPlan plan = new ProvisioningPlan();

                plan.setIdentity(user);

                AccountRequest accountRequest = new AccountRequest();
                accountRequest.setOperation(AccountRequest.Operation.Create);

                for(String key : map.keySet()) {
                        String provisioningName = key;
                        ProvisioningPlan.Operation operation = ProvisioningPlan.Operation.Set;
                        if (key.contains(":")) {
                                String[] components = key.split(":");
                                operation = ProvisioningPlan.Operation.valueOf(components[0]);
                                provisioningName = components[1];
                        }
                        AttributeRequest request = new AttributeRequest();
                        request.setName(provisioningName);
                        request.setOperation(operation);
                        request.setValue(map.get(key));
                        accountRequest.add(request);
                }

                plan.add(accountRequest);

                Map<String, Object> extraParameters = new HashMap<>();
                extraParameters.put("approvalScheme", "none");
                this.provisioningUtilities.doProvisioning(user.getName(), plan, false, extraParameters);
        }

        /**
         * Disables the given account in the target system
         * @param target The target to disable
         * @throws GeneralException if any IIQ failure occurs
         */
        public void disable(Link target) throws GeneralException {
                Objects.requireNonNull(target, "A non-null Link must be provided");
                new ProvisioningUtilities(context).disableAccount(target);
        }

        /**
         * Retrieves a single record from a JDBC application, simulating a properly
         * working getObject().
         *
         * The JDBC connector has a bug where the Connection object is not passed to
         * a BuildMap rule following a getObject(). This method works around the bug
         * by calling iterateObjects() instead after swapping out the getObjectSQL
         * and SQL parameters.
         *
         * NOTE: This is no longer necessary as of 8.2, as this bug has been fixed.
         *
         * TODO this does NOT work where a stored procedure is used.
         *
         * @param application The application to swap SQL and getObjectSQL
         * @param nativeIdentity The native identity to query
         * @return The queried ResourceObject
         * @throws GeneralException on failures to work with the Application
         * @throws ConnectorException on failures to work with the Connector
         */
        public ResourceObject doJDBCConnectorHack(Application application, String nativeIdentity) throws GeneralException, ConnectorException {
                // The JDBC connector has a weird bug in getObject where BuildMap rules
                // are not passed the Connection to the target system. We will offer the
                // option to use the "iterate" function for "get object" by faking out the
                // query. Connection works fine for iterate.
                ResourceObject resourceObject = null;
                Application cloned = (Application) application.deepCopy((XMLReferenceResolver) context);
                cloned.clearPersistentIdentity();
                String getObjectSQL = cloned.getAttributes().getString("getObjectSQL");
                if (Util.isNotNullOrEmpty(getObjectSQL)) {
                        Map<String, Object> variables = new HashMap<>();
                        variables.put("identity", nativeIdentity);
                        getObjectSQL = Util.expandVariables(getObjectSQL, variables);
                        cloned.getAttributes().put("SQL", getObjectSQL);

                        Connector sqlConnector = ConnectorFactory.getConnector(cloned, null);
                        CloseableIterator<ResourceObject> results = sqlConnector.iterateObjects("account", null, new HashMap<>());
                        try {
                                // This should produce only one result
                                if (results.hasNext()) {
                                        resourceObject = results.next();
                                }
                        } finally {
                                results.close();
                        }
                }
                return resourceObject;
        }

        /**
         * Retrieves a single account from the ServiceNow connector.
         *
         * The ServiceNow connector does not respect all of the connector options for
         * single-account (getObject) aggregation. This means that you end up with a
         * weird subset of fields. We need to do a "big" aggregation with the connector
         * filtered to a single account.
         *
         * @param field The field to query
         * @param id The value for that field (usually a sys_id)
         * @param appObject The Application
         * @param skipGroups If true, groups and roles will not be cached (or queried)
         * @return The resulting ResourceObject from the query
         * @throws GeneralException If any failures occur
         * @throws ConnectorException If any connector failures occur
         */
        public ResourceObject doServiceNowConnectorHack(String field, String id, Application appObject, boolean skipGroups) throws GeneralException, ConnectorException {
                ResourceObject rObj = null;
                Application cloned = (Application) appObject.deepCopy((XMLReferenceResolver) context);
                cloned.clearPersistentIdentity();
                if (skipGroups) {
                        Schema schema = cloned.getSchema("account");
                        schema.clearPersistentIdentity();
                        schema.removeAttribute("groups");
                        schema.removeAttribute("roles");
                }
                cloned.getAttributes().put("accountFilterAttribute", field + "=" + id);
                Connector snConnector = ConnectorFactory.getConnector(cloned, null);
                Filter userFilter = Filter.eq(field, id);
                CloseableIterator<ResourceObject> results = snConnector.iterateObjects("account", userFilter, new HashMap<>());
                try {
                        // This should produce only one result
                        if (results.hasNext()) {
                                rObj = results.next();
                                if (skipGroups) {
                                        // This means we only update attributes in the ResourceObject; we don't treat it as authoritative for all attributes
                                        rObj.setIncomplete(true);
                                }
                        }
                } finally {
                        results.close();
                }
                return rObj;
        }

        /**
         * Enables the given account in the target system
         * @param target The target to enable
         * @throws GeneralException if any IIQ failure occurs
         */
        public void enable(Link target) throws GeneralException {
                Objects.requireNonNull(target, "A non-null Link must be provided");
                new ProvisioningUtilities(context).enableAccount(target);
        }

        /**
         * Invokes the Identitizer to refresh the searchable Link attributes
         * @param theLink The link to refresh
         * @throws GeneralException if anything fails
         */
        public void fixLinkSearchableAttributes(Link theLink) throws GeneralException {
                if (theLink == null) {
                        throw new IllegalArgumentException("Must pass a non-null Link");
                }

                Identitizer identitizer = new Identitizer(context);
                identitizer.setPromoteAttributes(true);
                identitizer.refreshLink(theLink);
        }

        /**
         * Gets the provisioning utilities object associated with this AccountUtilities
         * for modification.
         *
         * @return The ProvisioningUtilities
         */
        public ProvisioningUtilities getProvisioningUtilities() {
                return provisioningUtilities;
        }

        /**
         * Mask any attributes flagged as secret attributes at the ProvisioningPlan level, and also
         * any attributes that look like they might be secrets based on a set of likely substrings.
         * The list of tokens to check heuristically is stored in {@link #likelyPasswordTokens}.
         *
         * @param attributes The attribute map to modify
         */
        public void heuristicMaskSecretAttributes(Map<String, Object> attributes) {
                if (attributes == null) {
                        return;
                }
        maskSecretAttributes(attributes);
        List<String> toMask = new ArrayList<>();
        for(String key : attributes.keySet()) {
                for(String token : likelyPasswordTokens) {
                        if (key.toLowerCase().contains(token) && !key.toLowerCase().contains("expir")) {
                                toMask.add(key);
                        }
                }
        }
        for(String key : toMask) {
                attributes.put(key, "********");
        }
        }
        
        /**
         * Returns true if the given entitlement is assigned by a role. This will
         * first check the IdentityEntitlement metadata on the Identity and, failing
         * that, laboriously search through assigned and detected role metadata.
         *
         * NOTE: Why not just use IdentityEntitlements? Because they're a delayed indicator.
         * They are populated via specific refresh and aggregation flags and so may not
         * be up to date when you need this result.
         *
         * @param context A Sailpoint context
         * @param account The account to check
         * @param attribute The account attribute to examine
         * @param entitlementName The account attribute value to examine
         * @return True if the entitlement is associated with an assigned role
         * @throws GeneralException if any failures occur
         */
        public boolean isAssignedByRole(SailPointContext context, Link account, String attribute, String entitlementName) throws GeneralException {
                boolean caseInsensitive = account.getApplication().isCaseInsensitive();
                Identity who = account.getIdentity();
                // Step 1: Find an IdentityEntitlement that matches
                QueryOptions qo = new QueryOptions();
                qo.add(Filter.eq("identity.id", who.getId()));
                qo.add(Filter.eq("name", attribute));
                qo.add(Filter.eq("application.id", account.getApplicationId()));
                if (caseInsensitive) {
                        qo.add(Filter.ignoreCase(Filter.eq("value", entitlementName)));
                } else {
                        qo.add(Filter.eq("value", entitlementName));
                }

                List<IdentityEntitlement> entitlements = context.getObjects(IdentityEntitlement.class, qo);
                for(IdentityEntitlement ie : Util.safeIterable(entitlements)) {
                        if (ie.isGrantedByRole()) {
                                return true;
                        }
                }

                // Step 2: If we got here, the IdentityEntitlement may simply have not been
                // assigned yet. We need to go spelunking through the roles to find it.
                for(RoleAssignment assignment : Util.safeIterable(who.getRoleAssignments())) {
                        if (assignment.isNegative()) {
                                continue;
                        }
                        for(RoleTarget target : Util.safeIterable(assignment.getTargets())) {
                                if (target.getApplicationName().equals(account.getApplicationName()) && target.getNativeIdentity().equals(account.getNativeIdentity())) {
                                        for (AccountItem item : Util.safeIterable(target.getItems())) {
                                                if (item.getName().equals(attribute)) {
                                                        List<String> valueList = item.getValueList();
                                                        if (valueList != null) {
                                                                for(String v : valueList) {
                                                                        if (entitlementName.equals(v) || (caseInsensitive && entitlementName.equalsIgnoreCase(v))) {
                                                                                return true;
                                                                        }
                                                                }
                                                        } else if (item.getValue() != null) {
                                                                Object v = item.getValue();
                                                                if (entitlementName.equals(v) || (caseInsensitive && entitlementName.equalsIgnoreCase(String.valueOf(v)))) {
                                                                        return true;
                                                                }
                                                        }
                                                }
                                        }
                                }
                        }
                }
                for(RoleDetection detection : Util.safeIterable(who.getRoleDetections())) {
                        if (!detection.hasAssignmentIds()) {
                                continue;
                        }
                        for(RoleTarget target : Util.safeIterable(detection.getTargets())) {
                                if (target.getApplicationName().equals(account.getApplicationName()) && target.getNativeIdentity().equals(account.getNativeIdentity())) {
                                        for (AccountItem item : Util.safeIterable(target.getItems())) {
                                                if (item.getName().equals(attribute)) {
                                                        List<String> valueList = item.getValueList();
                                                        if (valueList != null) {
                                                                for(String v : valueList) {
                                                                        if (entitlementName.equals(v) || (caseInsensitive && entitlementName.equalsIgnoreCase(v))) {
                                                                                return true;
                                                                        }
                                                                }
                                                        } else if (item.getValue() != null) {
                                                                Object v = item.getValue();
                                                                if (entitlementName.equals(v) || (caseInsensitive && entitlementName.equalsIgnoreCase(String.valueOf(v)))) {
                                                                        return true;
                                                                }
                                                        }
                                                }
                                        }
                                }
                        }
                }
                return false;
        }
        
        /**
         * Mask any attributes flagged as secret attributes at the ProvisioningPlan level
         * @param attributes The attribute map to modify
         */
        public void maskSecretAttributes(Map<String, Object> attributes) {
                if (attributes == null) {
                        return;
                }
        List<String> secretAttributeNames = ProvisioningPlan.getSecretProvisionAttributeNames();
        for(String attr : secretAttributeNames) {
                if (attributes.containsKey(attr)) {
                        attributes.put(attr, "********");
                }
        }
        }

        /**
         * Runs the customization rule given the aggregate options. This will be invoked by
         * aggregateAccount at several different times.
         *
         * @param theRule The Customization rule to run
         * @param options The aggregate options container
         * @return The modified resource object
         */
        private ResourceObject runCustomizationRule(Rule theRule, AggregateOptions options, AggregationOutcome outcome) {
                try {
                        // Pass the mandatory arguments to the Customization rule for the app.
                        Map<String, Object> ruleArgs = new HashMap<>();
                        ruleArgs.put("context", context);
                        ruleArgs.put("log", log);
                        ruleArgs.put("object", options.resourceObject);
                        ruleArgs.put("application", options.application);
                        ruleArgs.put("connector", options.connector);
                        ruleArgs.put("state", new HashMap<String, Object>());
                        // Call the customization rule just like a normal aggregation would.
                        Object output = context.runRule(theRule, ruleArgs, null);
                        // Make sure we got a valid resourceObject back from the rule.
                        if (output == null || output instanceof ResourceObject) {
                                return (ResourceObject) output;
                        }
                } catch (Exception e) {
                        // Log and ignore
                        log.error("Caught an error running Customization Rule " + theRule.getName(), e);
                        outcome.addError("Caught an error running Customization Rule " + theRule.getName(), e);
                        outcome.setStatus(OutcomeType.Failure);

                        return null;
                }
                return options.resourceObject;
        }

}