Examples with OwnerContent org.candlepin.model.OwnerContent used on opensource projects

Example 1 with OwnerContent

use of org.candlepin.model.OwnerContent in project candlepin by candlepin.

the class ContentManager method importContent.

/**
 * Creates or updates content from the given content DTOs, omitting product updates for the
 * provided Red Hat product IDs.
 * <p></p>
 * The content DTOs provided in the given map should be mapped by the content's Red Hat ID. If
 * the mappings are incorrect or inconsistent, the result of this method is undefined.
 *
 * @param owner
 *  The owner for which to import the given content
 *
 * @param contentData
 *  A mapping of Red Hat content ID to content DTOs to import
 *
 * @param importedProductIds
 *  A set of Red Hat product IDs specifying products which are being imported and should not be
 *  updated as part of this import operation
 *
 * @return
 *  A mapping of Red Hat content ID to content entities representing the imported content
 */
@SuppressWarnings("checkstyle:methodlength")
@Transactional
@Traceable
public ImportResult<Content> importContent(@TraceableParam("owner") Owner owner, Map<String, ContentData> contentData, Set<String> importedProductIds) {
    if (owner == null) {
        throw new IllegalArgumentException("owner is null");
    }
    ImportResult<Content> importResult = new ImportResult<>();
    if (contentData == null || contentData.isEmpty()) {
        // Nothing to import
        return importResult;
    }
    Map<String, Content> skippedContent = importResult.getSkippedEntities();
    Map<String, Content> createdContent = importResult.getCreatedEntities();
    Map<String, Content> updatedContent = importResult.getUpdatedEntities();
    Map<String, Integer> contentVersions = new HashMap<>();
    Map<String, Content> sourceContent = new HashMap<>();
    Map<String, List<Content>> existingVersions = new HashMap<>();
    List<OwnerContent> ownerContentBuffer = new LinkedList<>();
    // - Divide imported products into sets of updates and creates
    log.debug("Fetching existing content for update...");
    for (Content content : this.ownerContentCurator.getContentByIds(owner, contentData.keySet())) {
        ContentData update = contentData.get(content.getId());
        if (!this.isChangedBy(content, update)) {
            // This content won't be changing, so we'll just pretend it's not being imported at all
            skippedContent.put(content.getId(), content);
            continue;
        }
        // Content is coming from an upstream source; lock it so only upstream can make
        // further changes to it. If we ever use this method for anything other than
        // imports, we'll need to stop doing this.
        sourceContent.put(content.getId(), content);
        content = this.applyContentChanges((Content) content.clone(), update);
        updatedContent.put(content.getId(), content);
        contentVersions.put(content.getId(), content.getEntityVersion());
    }
    log.debug("Validating new content...");
    for (ContentData update : contentData.values()) {
        if (!skippedContent.containsKey(update.getId()) && !updatedContent.containsKey(update.getId())) {
            // Ensure content is minimally populated
            if (update.getId() == null || update.getType() == null || update.getLabel() == null || update.getName() == null || update.getVendor() == null) {
                throw new IllegalStateException("Content data is incomplete: " + update);
            }
            Content content = this.applyContentChanges(new Content(update.getId()), update);
            createdContent.put(content.getId(), content);
            contentVersions.put(content.getId(), content.getEntityVersion());
        }
    }
    log.debug("Checking for existing content versions...");
    for (Content alt : this.ownerContentCurator.getContentByVersions(owner, contentVersions)) {
        List<Content> alternates = existingVersions.get(alt.getId());
        if (alternates == null) {
            alternates = new LinkedList<>();
            existingVersions.put(alt.getId(), alternates);
        }
        alternates.add(alt);
    }
    contentVersions.clear();
    contentVersions = null;
    // We're about to start modifying the maps, so we need to clone the created set before we
    // start adding the update forks to it.
    Map<String, Content> stagedEntities = new HashMap<>(createdContent);
    // Process the created group...
    // Check our created set for existing versions:
    // - If there's an existing version, we'll remove the staged entity from the creation
    // set, and stage an owner-content mapping for the existing version
    // - Otherwise, we'll stage the new entity for persistence by leaving it in the created
    // set, and stage an owner-content mapping to the new entity
    Iterator<Content> iterator = stagedEntities.values().iterator();
    createdContentLoop: while (iterator.hasNext()) {
        Content created = iterator.next();
        List<Content> alternates = existingVersions.get(created.getId());
        if (alternates != null) {
            for (Content alt : alternates) {
                if (created.equals(alt)) {
                    ownerContentBuffer.add(new OwnerContent(owner, alt));
                    createdContent.put(alt.getId(), alt);
                    iterator.remove();
                    continue createdContentLoop;
                }
            }
        }
        ownerContentBuffer.add(new OwnerContent(owner, created));
    }
    // - Otherwise, we need to stage the updated entity for persistence
    updatedContentLoop: for (Map.Entry<String, Content> entry : updatedContent.entrySet()) {
        Content updated = entry.getValue();
        List<Content> alternates = existingVersions.get(updated.getId());
        if (alternates != null) {
            for (Content alt : alternates) {
                if (!updated.getUuid().equals(alt.getUuid()) && updated.equals(alt)) {
                    updated = alt;
                    entry.setValue(alt);
                    continue updatedContentLoop;
                }
            }
        }
        // We need to stage the updated entity for persistence. We'll reuse the now-empty
        // createdContent map for this.
        updated.setUuid(null);
        stagedEntities.put(updated.getId(), updated);
    }
    // Persist our staged entities
    // We probably don't want to evict the content yet, as they'll appear as unmanaged if
    // they're used later. However, the join objects can be evicted safely since they're only
    // really used here.
    log.debug("Persisting content changes...");
    this.contentCurator.saveAll(stagedEntities.values(), true, false);
    this.ownerContentCurator.saveAll(ownerContentBuffer, true, true);
    // Fetch collection of products affected by this import that aren't being imported themselves
    log.debug("Updating non-imported, affected products...");
    List<Product> affectedProducts = this.productCurator.getProductsByContent(owner, sourceContent.keySet(), importedProductIds).list();
    if (affectedProducts != null && !affectedProducts.isEmpty()) {
        // Get the collection of content those products use
        Map<String, Content> affectedProductsContent = new HashMap<>();
        for (Content content : this.contentCurator.getContentByProducts(affectedProducts)) {
            affectedProductsContent.put(content.getId(), content);
        }
        // Update the content map so it references the updated content
        affectedProductsContent.putAll(updatedContent);
        Map<String, ProductData> affectedProductData = new HashMap<>();
        Map<String, ContentData> contentDTOCache = new HashMap<>();
        for (Product product : affectedProducts) {
            ProductData pdto = product.toDTO();
            for (ProductContent pcdata : product.getProductContent()) {
                Content content = pcdata.getContent();
                Content updated = updatedContent.get(content.getId());
                if (updated != null) {
                    ContentData cdto = contentDTOCache.get(content.getId());
                    if (cdto == null) {
                        cdto = content.toDTO();
                        contentDTOCache.put(cdto.getId(), cdto);
                    }
                    pdto.addContent(cdto, pcdata.isEnabled());
                }
            }
            affectedProductData.put(pdto.getId(), pdto);
        }
        // Perform a micro-import for these products using the content map we just built
        this.productManager.importProducts(owner, affectedProductData, affectedProductsContent);
    }
    // Perform bulk reference update
    Map<String, String> contentUuidMap = new HashMap<>();
    for (Content update : updatedContent.values()) {
        Content source = sourceContent.get(update.getId());
        contentUuidMap.put(source.getUuid(), update.getUuid());
    }
    this.ownerContentCurator.updateOwnerContentReferences(owner, contentUuidMap);
    // Return
    return importResult;
}