Examples with PersistenceEvent org.openremote.container.persistence.PersistenceEvent used on opensource projects

Example 1 with PersistenceEvent

use of org.openremote.container.persistence.PersistenceEvent in project openremote by openremote.

the class AgentService method configure.

@Override
public void configure() throws Exception {
    from(PERSISTENCE_TOPIC).routeId("AgentPersistenceChanges").filter(isPersistenceEventForEntityType(Asset.class)).process(exchange -> {
        PersistenceEvent persistenceEvent = exchange.getIn().getBody(PersistenceEvent.class);
        Asset asset = (Asset) persistenceEvent.getEntity();
        if (isPersistenceEventForAssetType(AGENT).matches(exchange)) {
            processAgentChange(asset, persistenceEvent);
        } else {
            processAssetChange(asset, persistenceEvent);
        }
    });
    // A protocol wants to write a new sensor value
    from(SENSOR_QUEUE).routeId("FromSensorUpdates").filter(body().isInstanceOf(AttributeEvent.class)).setHeader(HEADER_SOURCE, () -> SENSOR).to(ASSET_QUEUE);
}

Example 2 with PersistenceEvent

use of org.openremote.container.persistence.PersistenceEvent in project openremote by openremote.

the class RulesService method processAssetChange.

protected void processAssetChange(ServerAsset asset, PersistenceEvent persistenceEvent) {
    withLock(getClass().getSimpleName() + "::processAssetChange", () -> {
        // We must load the asset from database (only when required), as the
        // persistence event might not contain a completely loaded asset
        BiFunction<Asset, AssetAttribute, AssetState> buildAssetState = (loadedAsset, attribute) -> new AssetState(loadedAsset, attribute.deepCopy(), Source.INTERNAL);
        switch(persistenceEvent.getCause()) {
            case INSERT:
                // New asset has been created so get attributes that have RULE_STATE meta
                List<AssetAttribute> ruleStateAttributes = asset.getAttributesStream().filter(AssetAttribute::isRuleState).collect(Collectors.toList());
                // Build an update with a fully loaded asset
                ruleStateAttributes.forEach(attribute -> {
                    ServerAsset loadedAsset = assetStorageService.find(asset.getId(), true);
                    // If the asset is now gone it was deleted immediately after being inserted, nothing more to do
                    if (loadedAsset == null)
                        return;
                    AssetState assetState = buildAssetState.apply(loadedAsset, attribute);
                    LOG.fine("Asset was persisted (" + persistenceEvent.getCause() + "), inserting fact: " + assetState);
                    updateAssetState(assetState, true, true);
                });
                break;
            case UPDATE:
                int attributesIndex = Arrays.asList(persistenceEvent.getPropertyNames()).indexOf("attributes");
                if (attributesIndex < 0) {
                    return;
                }
                // Fully load the asset
                final Asset loadedAsset = assetStorageService.find(asset.getId(), true);
                // If the asset is now gone it was deleted immediately after being updated, nothing more to do
                if (loadedAsset == null)
                    return;
                // Attributes have possibly changed so need to compare old and new attributes
                // to determine which facts to retract and which to insert
                List<AssetAttribute> oldRuleStateAttributes = attributesFromJson((ObjectValue) persistenceEvent.getPreviousState()[attributesIndex], asset.getId()).filter(AssetAttribute::isRuleState).collect(Collectors.toList());
                List<AssetAttribute> newRuleStateAttributes = attributesFromJson((ObjectValue) persistenceEvent.getCurrentState()[attributesIndex], asset.getId()).filter(AssetAttribute::isRuleState).collect(Collectors.toList());
                // Retract facts for attributes that are obsolete
                getAddedOrModifiedAttributes(newRuleStateAttributes, oldRuleStateAttributes, key -> key.equals(VALUE_TIMESTAMP_FIELD_NAME)).forEach(obsoleteFactAttribute -> {
                    AssetState update = buildAssetState.apply(loadedAsset, obsoleteFactAttribute);
                    LOG.fine("Asset was persisted (" + persistenceEvent.getCause() + "), retracting: " + update);
                    retractAssetState(update);
                });
                // Insert facts for attributes that are new
                getAddedOrModifiedAttributes(oldRuleStateAttributes, newRuleStateAttributes, key -> key.equals(VALUE_TIMESTAMP_FIELD_NAME)).forEach(newFactAttribute -> {
                    AssetState assetState = buildAssetState.apply(loadedAsset, newFactAttribute);
                    LOG.fine("Asset was persisted (" + persistenceEvent.getCause() + "), updating: " + assetState);
                    updateAssetState(assetState, true, true);
                });
                break;
            case DELETE:
                // Retract any facts that were associated with this asset
                asset.getAttributesStream().filter(AssetAttribute::isRuleState).forEach(attribute -> {
                    // We can't load the asset again (it was deleted), so don't use buildAssetState() and
                    // hope that the path of the event asset has been loaded before deletion, although it is
                    // "unlikely" anybody will access it during retraction...
                    AssetState assetState = new AssetState(asset, attribute, Source.INTERNAL);
                    LOG.fine("Asset was persisted (" + persistenceEvent.getCause() + "), retracting fact: " + assetState);
                    retractAssetState(assetState);
                });
                break;
        }
    });
}

Example 3 with PersistenceEvent

use of org.openremote.container.persistence.PersistenceEvent in project openremote by openremote.

the class RulesService method configure.

@Override
public void configure() throws Exception {
    // If any ruleset was modified in the database then check its' status and undeploy, deploy, or update it
    from(PERSISTENCE_TOPIC).routeId("RulesetPersistenceChanges").filter(isPersistenceEventForEntityType(Ruleset.class)).process(exchange -> {
        PersistenceEvent persistenceEvent = exchange.getIn().getBody(PersistenceEvent.class);
        processRulesetChange((Ruleset) persistenceEvent.getEntity(), persistenceEvent.getCause());
    });
    // If any tenant was modified in the database then check its' status and undeploy, deploy or update any
    // associated rulesets
    from(PERSISTENCE_TOPIC).routeId("RuleEngineTenantChanges").filter(isPersistenceEventForEntityType(Tenant.class)).process(exchange -> {
        PersistenceEvent persistenceEvent = exchange.getIn().getBody(PersistenceEvent.class);
        Tenant tenant = (Tenant) persistenceEvent.getEntity();
        processTenantChange(tenant, persistenceEvent.getCause());
    });
    // If any asset was modified in the database, detect changed attributes
    from(PERSISTENCE_TOPIC).routeId("RuleEngineAssetChanges").filter(isPersistenceEventForEntityType(Asset.class)).process(exchange -> {
        PersistenceEvent persistenceEvent = exchange.getIn().getBody(PersistenceEvent.class);
        final ServerAsset eventAsset = (ServerAsset) persistenceEvent.getEntity();
        processAssetChange(eventAsset, persistenceEvent);
    });
}

Example 4 with PersistenceEvent

use of org.openremote.container.persistence.PersistenceEvent in project openremote by openremote.

the class ManagerKeycloakIdentityProvider method publishModification.

protected void publishModification(PersistenceEvent.Cause cause, Tenant tenant) {
    // Fire persistence event although we don't use database for Tenant CUD but call Keycloak API
    PersistenceEvent persistenceEvent = new PersistenceEvent<>(cause, tenant, new String[0], null);
    messageBrokerService.getProducerTemplate().sendBodyAndHeader(PersistenceEvent.PERSISTENCE_TOPIC, ExchangePattern.InOnly, persistenceEvent, PersistenceEvent.HEADER_ENTITY_TYPE, persistenceEvent.getEntity().getClass());
    clientEventService.publishEvent(new AssetTreeModifiedEvent(timerService.getCurrentTimeMillis(), tenant.getId(), null));
}

Example 5 with PersistenceEvent

use of org.openremote.container.persistence.PersistenceEvent in project openremote by openremote.

the class AgentService method processAssetChange.

/**
 * Looks for new, modified and obsolete AGENT_LINK attributes and links / unlinks them
 * with the protocol
 */
protected void processAssetChange(Asset asset, PersistenceEvent persistenceEvent) {
    LOG.finest("Processing asset persistence event: " + persistenceEvent.getCause());
    switch(persistenceEvent.getCause()) {
        case INSERT:
            // Asset insert persistence events can be fired before the agent insert persistence event
            // so need to check that all protocol configs exist - any that don't we will exclude here
            // and handle in agent insert
            // If an agent insert just occurred then we will end up trying to link the attribute again
            // so we keep track of linked attributes to avoid this
            // Link any AGENT_LINK attributes to their referenced protocol
            Map<AssetAttribute, List<AssetAttribute>> groupedAgentLinksAttributes = getGroupedAgentLinkAttributes(asset.getAttributesStream(), attribute -> true, attribute -> LOG.warning("Linked protocol configuration not found: " + attribute));
            groupedAgentLinksAttributes.forEach(this::linkAttributes);
            break;
        case UPDATE:
            List<String> propertyNames = Arrays.asList(persistenceEvent.getPropertyNames());
            // Check if attributes of the asset have been modified
            int attributesIndex = propertyNames.indexOf("attributes");
            if (attributesIndex < 0) {
                return;
            }
            // Attributes have possibly changed so need to compare old and new state to determine any changes to
            // AGENT_LINK attributes
            List<AssetAttribute> oldAgentLinkedAttributes = attributesFromJson((ObjectValue) persistenceEvent.getPreviousState()[attributesIndex], asset.getId()).filter(AgentLink::hasAgentLink).collect(Collectors.toList());
            List<AssetAttribute> newAgentLinkedAttributes = attributesFromJson((ObjectValue) persistenceEvent.getCurrentState()[attributesIndex], asset.getId()).filter(AgentLink::hasAgentLink).collect(Collectors.toList());
            // Unlink thing attributes that are in old but not in new
            getGroupedAgentLinkAttributes(getAddedOrModifiedAttributes(newAgentLinkedAttributes, oldAgentLinkedAttributes, key -> key.equals(VALUE_TIMESTAMP_FIELD_NAME)), attribute -> true).forEach(this::unlinkAttributes);
            // Link thing attributes that are in new but not in old
            getGroupedAgentLinkAttributes(getAddedOrModifiedAttributes(oldAgentLinkedAttributes, newAgentLinkedAttributes, key -> key.equals(VALUE_TIMESTAMP_FIELD_NAME)), attribute -> true, attribute -> LOG.warning("Linked protocol configuration not found: " + attribute)).forEach(this::linkAttributes);
            break;
        case DELETE:
            {
                // Unlink any AGENT_LINK attributes from the referenced protocol
                Map<AssetAttribute, List<AssetAttribute>> groupedAgentLinkAndProtocolAttributes = getGroupedAgentLinkAttributes(asset.getAttributesStream(), attribute -> true);
                groupedAgentLinkAndProtocolAttributes.forEach(this::unlinkAttributes);
                break;
            }
    }
}