Examples with InternalVersionManager org.apache.jackrabbit.core.version.InternalVersionManager used on opensource projects

Example 1 with InternalVersionManager

use of org.apache.jackrabbit.core.version.InternalVersionManager in project jackrabbit by apache.

the class BatchedItemOperations method copyNodeState.

/**
     * Recursively copies the specified node state including its properties and
     * child nodes.
     *
     * @param srcState
     * @param srcPath
     * @param srcStateMgr
     * @param srcAccessMgr
     * @param destParentId
     * @param flag           one of
     *                       <ul>
     *                       <li><code>COPY</code></li>
     *                       <li><code>CLONE</code></li>
     *                       <li><code>CLONE_REMOVE_EXISTING</code></li>
     *                       </ul>
     * @param refTracker     tracks uuid mappings and processed reference properties
     * @return a deep copy of the given node state and its children
     * @throws RepositoryException if an error occurs
     */
private NodeState copyNodeState(NodeState srcState, Path srcPath, ItemStateManager srcStateMgr, AccessManager srcAccessMgr, NodeId destParentId, int flag, ReferenceChangeTracker refTracker) throws RepositoryException {
    NodeState newState;
    try {
        NodeId id = null;
        EffectiveNodeType ent = getEffectiveNodeType(srcState);
        boolean referenceable = ent.includesNodeType(NameConstants.MIX_REFERENCEABLE);
        boolean versionable = ent.includesNodeType(NameConstants.MIX_SIMPLE_VERSIONABLE);
        boolean fullVersionable = ent.includesNodeType(NameConstants.MIX_VERSIONABLE);
        boolean shareable = ent.includesNodeType(NameConstants.MIX_SHAREABLE);
        switch(flag) {
            case COPY:
                /* if this node is shareable and another node in the same shared set
                     * has been already been copied and given a new uuid, use this one
                     * (see section 14.5 of the specification)
                     */
                if (shareable && refTracker.getMappedId(srcState.getNodeId()) != null) {
                    NodeId newId = refTracker.getMappedId(srcState.getNodeId());
                    NodeState sharedState = (NodeState) stateMgr.getItemState(newId);
                    sharedState.addShare(destParentId);
                    return sharedState;
                }
                break;
            case CLONE:
                if (!referenceable) {
                    // non-referenceable node: always create new node id
                    break;
                }
                // use same uuid as source node
                id = srcState.getNodeId();
                if (stateMgr.hasItemState(id)) {
                    if (shareable) {
                        NodeState sharedState = (NodeState) stateMgr.getItemState(id);
                        sharedState.addShare(destParentId);
                        return sharedState;
                    }
                    // node with this uuid already exists
                    throw new ItemExistsException(safeGetJCRPath(id));
                }
                break;
            case CLONE_REMOVE_EXISTING:
                if (!referenceable) {
                    // non-referenceable node: always create new node id
                    break;
                }
                // use same uuid as source node
                id = srcState.getNodeId();
                if (stateMgr.hasItemState(id)) {
                    NodeState existingState = (NodeState) stateMgr.getItemState(id);
                    // or an ancestor thereof
                    if (id.equals(destParentId) || hierMgr.isAncestor(id, destParentId)) {
                        String msg = "cannot remove node " + safeGetJCRPath(srcPath) + " because it is an ancestor of the destination";
                        log.debug(msg);
                        throw new RepositoryException(msg);
                    }
                    // check if existing can be removed
                    // (access rights, locking & versioning status,
                    // node type constraints and retention/hold)
                    checkRemoveNode(existingState, CHECK_ACCESS | CHECK_LOCK | CHECK_CHECKED_OUT | CHECK_CONSTRAINTS | CHECK_HOLD | CHECK_RETENTION);
                    // do remove existing
                    removeNodeState(existingState);
                }
                break;
            default:
                throw new IllegalArgumentException("unknown flag for copying node state: " + flag);
        }
        newState = stateMgr.createNew(id, srcState.getNodeTypeName(), destParentId);
        id = newState.getNodeId();
        if (flag == COPY && referenceable) {
            // remember uuid mapping
            refTracker.mappedId(srcState.getNodeId(), id);
        }
        // copy node state
        newState.setMixinTypeNames(srcState.getMixinTypeNames());
        if (shareable) {
            // initialize shared set
            newState.addShare(destParentId);
        }
        // copy child nodes
        for (ChildNodeEntry entry : srcState.getChildNodeEntries()) {
            Path srcChildPath = PathFactoryImpl.getInstance().create(srcPath, entry.getName(), true);
            if (!srcAccessMgr.isGranted(srcChildPath, Permission.READ)) {
                continue;
            }
            NodeId nodeId = entry.getId();
            NodeState srcChildState = (NodeState) srcStateMgr.getItemState(nodeId);
            /**
                 * If child is shareble and its UUID has already been remapped,
                 * then simply add a reference to the state with that remapped
                 * UUID instead of copying the whole subtree.
                 */
            if (srcChildState.isShareable()) {
                NodeId mappedId = refTracker.getMappedId(srcChildState.getNodeId());
                if (mappedId != null) {
                    if (stateMgr.hasItemState(mappedId)) {
                        NodeState destState = (NodeState) stateMgr.getItemState(mappedId);
                        if (!destState.isShareable()) {
                            String msg = "Remapped child (" + safeGetJCRPath(srcPath) + ") is not shareable.";
                            throw new ItemStateException(msg);
                        }
                        if (!destState.addShare(id)) {
                            String msg = "Unable to add share to node: " + id;
                            throw new ItemStateException(msg);
                        }
                        stateMgr.store(destState);
                        newState.addChildNodeEntry(entry.getName(), mappedId);
                        continue;
                    }
                }
            }
            // recursive copying of child node
            NodeState newChildState = copyNodeState(srcChildState, srcChildPath, srcStateMgr, srcAccessMgr, id, flag, refTracker);
            // store new child node
            stateMgr.store(newChildState);
            // add new child node entry to new node
            newState.addChildNodeEntry(entry.getName(), newChildState.getNodeId());
        }
        // init version history if needed
        VersionHistoryInfo history = null;
        if (versionable && flag == COPY) {
            NodeId copiedFrom = null;
            if (fullVersionable) {
                // base version of copied versionable node is reference value of
                // the histories jcr:copiedFrom property
                PropertyId propId = new PropertyId(srcState.getNodeId(), NameConstants.JCR_BASEVERSION);
                PropertyState prop = (PropertyState) srcStateMgr.getItemState(propId);
                copiedFrom = prop.getValues()[0].getNodeId();
            }
            InternalVersionManager manager = session.getInternalVersionManager();
            history = manager.getVersionHistory(session, newState, copiedFrom);
        }
        // copy properties
        for (Name propName : srcState.getPropertyNames()) {
            Path propPath = PathFactoryImpl.getInstance().create(srcPath, propName, true);
            PropertyId propId = new PropertyId(srcState.getNodeId(), propName);
            if (!srcAccessMgr.canRead(propPath, propId)) {
                continue;
            }
            PropertyState srcChildState = (PropertyState) srcStateMgr.getItemState(propId);
            /**
                 * special handling required for properties with special semantics
                 * (e.g. those defined by mix:referenceable, mix:versionable,
                 * mix:lockable, et.al.)
                 *
                 * todo FIXME delegate to 'node type instance handler'
                 */
            QPropertyDefinition def = ent.getApplicablePropertyDef(srcChildState.getName(), srcChildState.getType(), srcChildState.isMultiValued());
            if (NameConstants.MIX_LOCKABLE.equals(def.getDeclaringNodeType())) {
                // skip properties defined by mix:lockable
                continue;
            }
            PropertyState newChildState = copyPropertyState(srcChildState, id, propName, def);
            if (history != null) {
                if (fullVersionable) {
                    if (propName.equals(NameConstants.JCR_VERSIONHISTORY)) {
                        // jcr:versionHistory
                        InternalValue value = InternalValue.create(history.getVersionHistoryId());
                        newChildState.setValues(new InternalValue[] { value });
                    } else if (propName.equals(NameConstants.JCR_BASEVERSION) || propName.equals(NameConstants.JCR_PREDECESSORS)) {
                        // jcr:baseVersion or jcr:predecessors
                        InternalValue value = InternalValue.create(history.getRootVersionId());
                        newChildState.setValues(new InternalValue[] { value });
                    } else if (propName.equals(NameConstants.JCR_ISCHECKEDOUT)) {
                        // jcr:isCheckedOut
                        newChildState.setValues(new InternalValue[] { InternalValue.create(true) });
                    }
                } else {
                    // version history when we see the jcr:isCheckedOut
                    if (propName.equals(NameConstants.JCR_ISCHECKEDOUT)) {
                        // jcr:isCheckedOut
                        newChildState.setValues(new InternalValue[] { InternalValue.create(true) });
                    }
                }
            }
            if (newChildState.getType() == PropertyType.REFERENCE || newChildState.getType() == PropertyType.WEAKREFERENCE) {
                refTracker.processedReference(newChildState);
            }
            // store new property
            stateMgr.store(newChildState);
            // add new property entry to new node
            newState.addPropertyName(propName);
        }
        return newState;
    } catch (ItemStateException ise) {
        String msg = "internal error: failed to copy state of " + srcState.getNodeId();
        log.debug(msg);
        throw new RepositoryException(msg, ise);
    }
}

Example 2 with InternalVersionManager

use of org.apache.jackrabbit.core.version.InternalVersionManager in project jackrabbit by apache.

the class RepositoryImpl method doShutdown.

/**
     * Protected method that performs the actual shutdown after the shutdown
     * lock has been acquired by the {@link #shutdown()} method.
     */
protected synchronized void doShutdown() {
    log.info("Shutting down repository...");
    // stop optional cluster node
    ClusterNode clusterNode = context.getClusterNode();
    if (clusterNode != null) {
        clusterNode.stop();
    }
    if (securityMgr != null) {
        securityMgr.close();
    }
    // close active user sessions
    // (copy sessions to array to avoid ConcurrentModificationException;
    // manually copy entries rather than calling ReferenceMap#toArray() in
    // order to work around  http://issues.apache.org/bugzilla/show_bug.cgi?id=25551)
    List<Session> sa;
    synchronized (activeSessions) {
        sa = new ArrayList<Session>(activeSessions.size());
        for (Session session : activeSessions.values()) {
            sa.add(session);
        }
    }
    for (Session session : sa) {
        if (session != null) {
            session.logout();
        }
    }
    // shutdown system search manager if there is one
    if (systemSearchMgr != null) {
        systemSearchMgr.close();
    }
    // shut down workspaces
    synchronized (wspInfos) {
        for (WorkspaceInfo wspInfo : wspInfos.values()) {
            wspInfo.dispose();
        }
    }
    try {
        InternalVersionManager m = context.getInternalVersionManager();
        if (m != null) {
            m.close();
        }
    } catch (Exception e) {
        log.error("Error while closing Version Manager.", e);
    }
    repDescriptors.clear();
    DataStore dataStore = context.getDataStore();
    if (dataStore != null) {
        try {
            // close the datastore
            dataStore.close();
        } catch (DataStoreException e) {
            log.error("error while closing datastore", e);
        }
    }
    try {
        // close repository file system
        context.getFileSystem().close();
    } catch (FileSystemException e) {
        log.error("error while closing repository file system", e);
    }
    try {
        nodeIdFactory.close();
    } catch (RepositoryException e) {
        log.error("error while closing repository file system", e);
    }
    // make sure this instance is not used anymore
    disposed = true;
    // wake up threads waiting on this instance's monitor (e.g. workspace janitor)
    notifyAll();
    // Shut down the executor service
    ScheduledExecutorService executor = context.getExecutor();
    executor.shutdown();
    try {
        // Wait for all remaining background threads to terminate
        if (!executor.awaitTermination(10, TimeUnit.SECONDS)) {
            log.warn("Attempting to forcibly shutdown runaway threads");
            executor.shutdownNow();
        }
    } catch (InterruptedException e) {
        log.warn("Interrupted while waiting for background threads", e);
    }
    repConfig.getConnectionFactory().close();
    // finally release repository lock
    if (repLock != null) {
        try {
            repLock.release();
        } catch (RepositoryException e) {
            log.error("failed to release the repository lock", e);
        }
    }
    log.info("Repository has been shutdown");
}

Example 3 with InternalVersionManager

use of org.apache.jackrabbit.core.version.InternalVersionManager in project jackrabbit by apache.

the class ItemSaveOperation method initVersionHistories.

/**
     * Initialises the version history of all new nodes of node type
     * <code>mix:versionable</code>.
     *
     * @param states
     * @return true if this call generated new transient state; otherwise false
     * @throws RepositoryException
     */
private boolean initVersionHistories(SessionContext context, Iterable<ItemState> states) throws RepositoryException {
    SessionImpl session = context.getSessionImpl();
    ItemManager itemMgr = context.getItemManager();
    // walk through list of transient items and search for new versionable nodes
    boolean createdTransientState = false;
    for (ItemState itemState : states) {
        if (itemState.isNode()) {
            NodeState nodeState = (NodeState) itemState;
            EffectiveNodeType nt = getEffectiveNodeType(context.getRepositoryContext().getNodeTypeRegistry(), nodeState);
            if (nt.includesNodeType(NameConstants.MIX_VERSIONABLE)) {
                if (!nodeState.hasPropertyName(NameConstants.JCR_VERSIONHISTORY)) {
                    NodeImpl node = (NodeImpl) itemMgr.getItem(itemState.getId(), false);
                    InternalVersionManager vMgr = session.getInternalVersionManager();
                    /**
                         * check if there's already a version history for that
                         * node; this would e.g. be the case if a versionable
                         * node had been exported, removed and re-imported with
                         * either IMPORT_UUID_COLLISION_REMOVE_EXISTING or
                         * IMPORT_UUID_COLLISION_REPLACE_EXISTING;
                         * otherwise create a new version history
                         */
                    VersionHistoryInfo history = vMgr.getVersionHistory(session, nodeState, null);
                    InternalValue historyId = InternalValue.create(history.getVersionHistoryId());
                    InternalValue versionId = InternalValue.create(history.getRootVersionId());
                    node.internalSetProperty(NameConstants.JCR_VERSIONHISTORY, historyId);
                    node.internalSetProperty(NameConstants.JCR_BASEVERSION, versionId);
                    node.internalSetProperty(NameConstants.JCR_ISCHECKEDOUT, InternalValue.create(true));
                    node.internalSetProperty(NameConstants.JCR_PREDECESSORS, new InternalValue[] { versionId });
                    createdTransientState = true;
                }
            } else if (nt.includesNodeType(NameConstants.MIX_SIMPLE_VERSIONABLE)) {
                // we need to check the version manager for an existing
                // version history, since simple versioning does not
                // expose it's reference in a property
                InternalVersionManager vMgr = session.getInternalVersionManager();
                vMgr.getVersionHistory(session, nodeState, null);
                // create isCheckedOutProperty if not already exists
                NodeImpl node = (NodeImpl) itemMgr.getItem(itemState.getId(), false);
                if (!nodeState.hasPropertyName(NameConstants.JCR_ISCHECKEDOUT)) {
                    node.internalSetProperty(NameConstants.JCR_ISCHECKEDOUT, InternalValue.create(true));
                    createdTransientState = true;
                }
            }
        }
    }
    return createdTransientState;
}