Examples with LockInfo io.jmix.core.pessimisticlocking.LockInfo used on opensource projects

Example 1 with LockInfo

use of io.jmix.core.pessimisticlocking.LockInfo in project jmix by jmix-framework.

the class EntityCombinedScreen method lockIfNeeded.

/**
 * Pessimistic lock before start of editing, if it is configured for the entity.
 */
protected boolean lockIfNeeded(Entity entity) {
    MetaClass metaClass = getMetaClassForLocking(entity);
    LockInfo lockInfo = getApplicationContext().getBean(LockService.class).lock(metaClass.getName(), EntityValues.getId(entity).toString());
    if (lockInfo == null) {
        justLocked = true;
    } else if (!(lockInfo instanceof LockNotSupported)) {
        showNotification(messages.getMainMessage("entityLocked.msg"), String.format(messages.getMainMessage("entityLocked.desc"), lockInfo.getUsername(), getApplicationContext().getBean(DatatypeFormatter.class).formatDateTime(lockInfo.getSince())), NotificationType.HUMANIZED);
        return false;
    }
    return true;
}

Example 2 with LockInfo

use of io.jmix.core.pessimisticlocking.LockInfo in project jmix by jmix-framework.

the class AbstractEditor method setItemInternal.

@SuppressWarnings("unchecked")
protected void setItemInternal(Entity item) {
    Datasource ds = getDatasourceInternal();
    DataSupplier dataservice = ds.getDataSupplier();
    DatasourceImplementation parentDs = (DatasourceImplementation) ((DatasourceImplementation) ds).getParent();
    DynamicAttributesGuiTools dynamicAttributesGuiTools = (DynamicAttributesGuiTools) getApplicationContext().getBean(DynamicAttributesGuiTools.NAME);
    if (dynamicAttributesGuiTools.screenContainsDynamicAttributes(ds.getView(), getFrame().getId())) {
        ds.setLoadDynamicAttributes(true);
    }
    Class<? extends Entity> entityClass = item.getClass();
    Object entityId = EntityValues.getId(item);
    EntityStates entityStates = getApplicationContext().getBean(EntityStates.class);
    if (parentDs != null) {
        if (!PersistenceHelper.isNew(item) && !parentDs.getItemsToCreate().contains(item) && !parentDs.getItemsToUpdate().contains(item) && parentDs instanceof CollectionDatasource && ((CollectionDatasource) parentDs).containsItem(EntityValues.getId(item)) && !entityStates.isLoadedWithFetchPlan(item, ds.getView())) {
            item = dataservice.reload(item, ds.getView(), ds.getMetaClass(), ds.getLoadDynamicAttributes());
            if (parentDs instanceof CollectionPropertyDatasourceImpl) {
                ((CollectionPropertyDatasourceImpl) parentDs).replaceItem(item);
            } else {
                ((CollectionDatasource) parentDs).updateItem(item);
            }
        }
        item = EntityCopyUtils.copyCompositions(item);
        handlePreviouslyDeletedCompositionItems(item, parentDs);
    } else if (!PersistenceHelper.isNew(item)) {
        item = dataservice.reload(item, ds.getView(), ds.getMetaClass(), ds.getLoadDynamicAttributes());
    }
    if (item == null) {
        throw new EntityAccessException(metadata.getClassNN(entityClass), entityId);
    }
    if (PersistenceHelper.isNew(item) && !ds.getMetaClass().equals(metadata.getClass(item))) {
        Entity newItem = ds.getDataSupplier().newInstance(ds.getMetaClass());
        MetadataTools metadataTools = (MetadataTools) getApplicationContext().getBean(MetadataTools.class);
        metadataTools.copy(item, newItem);
        item = newItem;
    }
    if (ds.getLoadDynamicAttributes()) {
        if (PersistenceHelper.isNew(item)) {
            dynamicAttributesGuiTools.initDefaultAttributeValues(item, metadata.getClass(item));
        }
        if (item instanceof Categorized) {
            dynamicAttributesGuiTools.listenCategoryChanges(ds);
        }
    }
    ds.setItem(item);
    if (PersistenceHelper.isNew(item)) {
        // make sure that they will be saved on commit.
        for (Datasource datasource : ds.getDsContext().getAll()) {
            if (datasource instanceof NestedDatasource && ((NestedDatasource) datasource).getMaster() == ds) {
                if (datasource.getItem() != null && PersistenceHelper.isNew(datasource.getItem()))
                    ((DatasourceImplementation) datasource).modified(datasource.getItem());
            }
        }
    }
    ((DatasourceImplementation) ds).setModified(false);
    Security security = (Security) getApplicationContext().getBean(Security.NAME);
    if (!PersistenceHelper.isNew(item)) {
        if (security.isEntityOpPermitted(ds.getMetaClass(), EntityOp.UPDATE)) {
            readOnlyDueToLock = false;
            LockService lockService = (LockService) getApplicationContext().getBean(LockService.NAME);
            LockInfo lockInfo = lockService.lock(getMetaClassForLocking(ds).getName(), EntityValues.getId(item).toString());
            if (lockInfo == null) {
                justLocked = true;
                addAfterDetachListener(afterCloseEvent -> {
                    releaseLock();
                });
            } else if (!(lockInfo instanceof LockNotSupported)) {
                UserSessionSource userSessionSource = (UserSessionSource) getApplicationContext().getBean(UserSessionSource.NAME);
                Frame frame = (Frame) getFrame();
                frame.getWindowManager().showNotification(messages.getMainMessage("entityLocked.msg"), String.format(messages.getMainMessage("entityLocked.desc"), lockInfo.getUsername(), Datatypes.getNN(Date.class).format(lockInfo.getSince(), userSessionSource.getLocale())), Frame.NotificationType.HUMANIZED);
                readOnlyDueToLock = true;
                showEnableEditingBtn = false;
                setReadOnly(true);
            }
        } else {
            showEnableEditingBtn = false;
            setReadOnly(true);
        }
    }
}