Examples with NodeTypeManager org.modeshape.jcr.api.nodetype.NodeTypeManager used on opensource projects

Example 1 with NodeTypeManager

use of org.modeshape.jcr.api.nodetype.NodeTypeManager in project kylo by Teradata.

the class FeedVersioningRemovalUpgradeAction method upgradeTo.

@Override
public void upgradeTo(KyloVersion startingVersion) {
    log.info("Removing feed versioning: {}", startingVersion);
    Session session = JcrMetadataAccess.getActiveSession();
    try {
        Node feedsNode = session.getRootNode().getNode("metadata/feeds");
        NodeTypeManager typeMgr = (NodeTypeManager) session.getWorkspace().getNodeTypeManager();
        NodeType currentFeedType = typeMgr.getNodeType("tba:feed");
        List<String> currentSupertypes = Arrays.asList(currentFeedType.getDeclaredSupertypeNames());
        if (currentSupertypes.contains("mix:versionable")) {
            log.info("Removing versionable feed type {} ", currentFeedType);
            // Remove feed version history
            for (Node catNode : JcrUtil.getNodesOfType(feedsNode, "tba:category")) {
                for (Node feedNode : JcrUtil.getNodesOfType(catNode, "tba:feed")) {
                    log.debug("Removing prior versions of feed: {}.{}", catNode.getName(), feedNode.getName());
                    if (JcrVersionUtil.isVersionable(feedNode)) {
                        VersionManager versionManager = session.getWorkspace().getVersionManager();
                        VersionHistory versionHistory = versionManager.getVersionHistory(feedNode.getPath());
                        VersionIterator vIt = versionHistory.getAllVersions();
                        int count = 0;
                        String last = "";
                        while (vIt.hasNext()) {
                            Version version = vIt.nextVersion();
                            String versionName = version.getName();
                            String baseVersion = "";
                            if (!"jcr:rootVersion".equals(versionName)) {
                                // baseVersion requires actual versionable node to get the base version name
                                baseVersion = JcrVersionUtil.getBaseVersion(feedNode).getName();
                            }
                            if (!"jcr:rootVersion".equals(versionName) && !versionName.equalsIgnoreCase(baseVersion)) {
                                last = version.getName();
                                // removeVersion writes directly to workspace, no session.save is necessary
                                versionHistory.removeVersion(version.getName());
                                count++;
                            }
                        }
                        if (count > 0) {
                            log.info("Removed {} versions through {} of feed {}", count, last, feedNode.getName());
                        } else {
                            log.debug("Feed {} had no versions", feedNode.getName());
                        }
                    }
                }
            }
            // Redefine the NodeType of tba:feed to remove versionable but retain the versionable properties with weaker constraints
            // Retaining the properties seems to override some residual properties on feed nodes that causes a failure later.
            // In particular, jcr:predecessors was accessed later but redefining all mix:versionable properties to be safe.
            NodeTypeTemplate template = typeMgr.createNodeTypeTemplate(currentFeedType);
            List<String> newSupertypes = currentSupertypes.stream().filter(type -> !type.equals("mix:versionable")).collect(Collectors.toList());
            template.setDeclaredSuperTypeNames(newSupertypes.toArray(new String[newSupertypes.size()]));
            @SuppressWarnings("unchecked") List<PropertyDefinitionTemplate> propTemplates = template.getPropertyDefinitionTemplates();
            PropertyDefinitionTemplate prop = typeMgr.createPropertyDefinitionTemplate();
            prop.setName("jcr:versionHistory");
            prop.setRequiredType(PropertyType.WEAKREFERENCE);
            propTemplates.add(prop);
            prop = typeMgr.createPropertyDefinitionTemplate();
            prop.setName("jcr:baseVersion");
            prop.setRequiredType(PropertyType.WEAKREFERENCE);
            propTemplates.add(prop);
            prop = typeMgr.createPropertyDefinitionTemplate();
            prop.setName("jcr:predecessors");
            prop.setRequiredType(PropertyType.WEAKREFERENCE);
            prop.setMultiple(true);
            propTemplates.add(prop);
            prop = typeMgr.createPropertyDefinitionTemplate();
            prop.setName("jcr:mergeFailed");
            prop.setRequiredType(PropertyType.WEAKREFERENCE);
            propTemplates.add(prop);
            prop = typeMgr.createPropertyDefinitionTemplate();
            prop.setName("jcr:activity");
            prop.setRequiredType(PropertyType.WEAKREFERENCE);
            propTemplates.add(prop);
            prop = typeMgr.createPropertyDefinitionTemplate();
            prop.setName("jcr:configuration");
            prop.setRequiredType(PropertyType.WEAKREFERENCE);
            propTemplates.add(prop);
            log.info("Replacing the versionable feed type '{}' with a non-versionable type", currentFeedType);
            NodeType newType = typeMgr.registerNodeType(template, true);
            log.info("Replaced with new feed type '{}' with a non-versionable type", newType);
            // This step may not be necessary.
            for (Node catNode : JcrUtil.getNodesOfType(feedsNode, "tba:category")) {
                for (Node feedNode : JcrUtil.getNodesOfType(catNode, "tba:feed")) {
                    feedNode.setPrimaryType(newType.getName());
                    if (feedNode.hasProperty("jcr:predecessors")) {
                        feedNode.getProperty("jcr:predecessors").setValue(new Value[0]);
                        ;
                        feedNode.getProperty("jcr:predecessors").remove();
                    }
                }
            }
        }
    } catch (RepositoryException e) {
        log.error("Failure while attempting to remove versioning from feeds", e);
        throw new UpgradeException("Failure while attempting to remove versioning from feeds", e);
    }
}