Examples with NodeState org.apache.jackrabbit.core.state.NodeState used on opensource projects

Example 1 with NodeState

use of org.apache.jackrabbit.core.state.NodeState in project jackrabbit by apache.

the class RemoveMixinOperation method perform.

public Object perform(SessionContext context) throws RepositoryException {
    SessionImpl session = context.getSessionImpl();
    ItemManager itemMgr = context.getItemManager();
    SessionItemStateManager stateMgr = context.getItemStateManager();
    context.getItemValidator().checkModify(node, CHECK_LOCK | CHECK_CHECKED_OUT | CHECK_CONSTRAINTS | CHECK_HOLD, Permission.NODE_TYPE_MNGMT);
    // check if mixin is assigned
    NodeState state = node.getNodeState();
    if (!state.getMixinTypeNames().contains(mixinName)) {
        throw new NoSuchNodeTypeException("Mixin " + context.getJCRName(mixinName) + " not included in " + node);
    }
    NodeTypeManagerImpl ntMgr = context.getNodeTypeManager();
    NodeTypeRegistry ntReg = context.getNodeTypeRegistry();
    // build effective node type of remaining mixin's & primary type
    Set<Name> remainingMixins = new HashSet<Name>(state.getMixinTypeNames());
    // remove name of target mixin
    remainingMixins.remove(mixinName);
    EffectiveNodeType entResulting;
    try {
        // build effective node type representing primary type
        // including remaining mixin's
        entResulting = ntReg.getEffectiveNodeType(state.getNodeTypeName(), remainingMixins);
    } catch (NodeTypeConflictException e) {
        throw new ConstraintViolationException(e.getMessage(), e);
    }
    // mix:referenceable needs special handling because it has
    // special semantics:
    // it can only be removed if there no more references to this node
    NodeTypeImpl mixin = ntMgr.getNodeType(mixinName);
    if (isReferenceable(mixin) && !entResulting.includesNodeType(MIX_REFERENCEABLE)) {
        if (node.getReferences().hasNext()) {
            throw new ConstraintViolationException(mixinName + " can not be removed:" + " the node is being referenced through at least" + " one property of type REFERENCE");
        }
    }
    // currently locked even if the editing session is the lock holder.
    if ((NameConstants.MIX_LOCKABLE.equals(mixinName) || mixin.isDerivedFrom(NameConstants.MIX_LOCKABLE)) && !entResulting.includesNodeType(NameConstants.MIX_LOCKABLE) && node.isLocked()) {
        throw new ConstraintViolationException(mixinName + " can not be removed: the node is locked.");
    }
    NodeState thisState = (NodeState) node.getOrCreateTransientItemState();
    // collect information about properties and nodes which require further
    // action as a result of the mixin removal; we need to do this *before*
    // actually changing the assigned mixin types, otherwise we wouldn't
    // be able to retrieve the current definition of an item.
    Map<PropertyId, PropertyDefinition> affectedProps = new HashMap<PropertyId, PropertyDefinition>();
    Map<ChildNodeEntry, NodeDefinition> affectedNodes = new HashMap<ChildNodeEntry, NodeDefinition>();
    try {
        Set<Name> names = thisState.getPropertyNames();
        for (Name propName : names) {
            PropertyId propId = new PropertyId(thisState.getNodeId(), propName);
            PropertyState propState = (PropertyState) stateMgr.getItemState(propId);
            PropertyDefinition oldDef = itemMgr.getDefinition(propState);
            // check if property has been defined by mixin type
            // (or one of its supertypes)
            NodeTypeImpl declaringNT = (NodeTypeImpl) oldDef.getDeclaringNodeType();
            if (!entResulting.includesNodeType(declaringNT.getQName())) {
                // the resulting effective node type doesn't include the
                // node type that declared this property
                affectedProps.put(propId, oldDef);
            }
        }
        List<ChildNodeEntry> entries = thisState.getChildNodeEntries();
        for (ChildNodeEntry entry : entries) {
            NodeState nodeState = (NodeState) stateMgr.getItemState(entry.getId());
            NodeDefinition oldDef = itemMgr.getDefinition(nodeState);
            // check if node has been defined by mixin type
            // (or one of its supertypes)
            NodeTypeImpl declaringNT = (NodeTypeImpl) oldDef.getDeclaringNodeType();
            if (!entResulting.includesNodeType(declaringNT.getQName())) {
                // the resulting effective node type doesn't include the
                // node type that declared this child node
                affectedNodes.put(entry, oldDef);
            }
        }
    } catch (ItemStateException e) {
        throw new RepositoryException("Failed to determine effect of removing mixin " + context.getJCRName(mixinName), e);
    }
    // modify the state of this node
    thisState.setMixinTypeNames(remainingMixins);
    // set jcr:mixinTypes property
    node.setMixinTypesProperty(remainingMixins);
    // process affected nodes & properties:
    // 1. try to redefine item based on the resulting
    //    new effective node type (see JCR-2130)
    // 2. remove item if 1. fails
    boolean success = false;
    try {
        for (Map.Entry<PropertyId, PropertyDefinition> entry : affectedProps.entrySet()) {
            PropertyId id = entry.getKey();
            PropertyImpl prop = (PropertyImpl) itemMgr.getItem(id);
            PropertyDefinition oldDef = entry.getValue();
            if (oldDef.isProtected()) {
                // remove 'orphaned' protected properties immediately
                node.removeChildProperty(id.getName());
                continue;
            }
            // redefine property if possible (JCR-2130)
            try {
                PropertyDefinitionImpl newDef = node.getApplicablePropertyDefinition(id.getName(), prop.getType(), oldDef.isMultiple(), false);
                if (newDef.getRequiredType() != PropertyType.UNDEFINED && newDef.getRequiredType() != prop.getType()) {
                    // value conversion required
                    if (oldDef.isMultiple()) {
                        // convert value
                        Value[] values = ValueHelper.convert(prop.getValues(), newDef.getRequiredType(), session.getValueFactory());
                        // redefine property
                        prop.onRedefine(newDef.unwrap());
                        // set converted values
                        prop.setValue(values);
                    } else {
                        // convert value
                        Value value = ValueHelper.convert(prop.getValue(), newDef.getRequiredType(), session.getValueFactory());
                        // redefine property
                        prop.onRedefine(newDef.unwrap());
                        // set converted values
                        prop.setValue(value);
                    }
                } else {
                    // redefine property
                    prop.onRedefine(newDef.unwrap());
                }
            } catch (ValueFormatException vfe) {
                // value conversion failed, remove it
                node.removeChildProperty(id.getName());
            } catch (ConstraintViolationException cve) {
                // no suitable definition found for this property,
                // remove it
                node.removeChildProperty(id.getName());
            }
        }
        for (ChildNodeEntry entry : affectedNodes.keySet()) {
            NodeState nodeState = (NodeState) stateMgr.getItemState(entry.getId());
            NodeImpl childNode = (NodeImpl) itemMgr.getItem(entry.getId());
            NodeDefinition oldDef = affectedNodes.get(entry);
            if (oldDef.isProtected()) {
                // remove 'orphaned' protected child node immediately
                node.removeChildNode(entry.getId());
                continue;
            }
            // redefine node if possible (JCR-2130)
            try {
                NodeDefinitionImpl newDef = node.getApplicableChildNodeDefinition(entry.getName(), nodeState.getNodeTypeName());
                // redefine node
                childNode.onRedefine(newDef.unwrap());
            } catch (ConstraintViolationException cve) {
                // no suitable definition found for this child node,
                // remove it
                node.removeChildNode(entry.getId());
            }
        }
        success = true;
    } catch (ItemStateException e) {
        throw new RepositoryException("Failed to clean up child items defined by removed mixin " + context.getJCRName(mixinName), e);
    } finally {
        if (!success) {
        // TODO JCR-1914: revert any changes made so far
        }
    }
    return this;
}

Example 2 with NodeState

use of org.apache.jackrabbit.core.state.NodeState in project jackrabbit by apache.

the class RepositoryChecker method internalCheck.

private void internalCheck(NodeId id, boolean recurse, boolean fixImmediately) throws RepositoryException {
    try {
        log.debug("Checking consistency of node {}", id);
        totalNodes += 1;
        NodeState state = workspace.load(id);
        checkVersionHistory(state);
        if (fixImmediately && dirtyNodes > CHUNKSIZE) {
            internalFix(false);
        }
        if (recurse) {
            for (ChildNodeEntry child : state.getChildNodeEntries()) {
                if (!SYSTEM_ROOT_NODE_ID.equals(child.getId())) {
                    internalCheck(child.getId(), recurse, fixImmediately);
                }
            }
        }
    } catch (ItemStateException e) {
        throw new RepositoryException("Unable to access node " + id, e);
    }
}

Example 3 with NodeState

use of org.apache.jackrabbit.core.state.NodeState in project jackrabbit by apache.

the class XMLPersistenceManager method load.

/**
     * {@inheritDoc}
     */
public synchronized NodeState load(NodeId id) throws NoSuchItemStateException, ItemStateException {
    if (!initialized) {
        throw new IllegalStateException("not initialized");
    }
    Exception e = null;
    String nodeFilePath = buildNodeFilePath(id);
    try {
        if (!itemStateFS.isFile(nodeFilePath)) {
            throw new NoSuchItemStateException(id.toString());
        }
        InputStream in = itemStateFS.getInputStream(nodeFilePath);
        try {
            DOMWalker walker = new DOMWalker(in);
            String ntName = walker.getAttribute(NODETYPE_ATTRIBUTE);
            NodeState state = createNew(id);
            state.setNodeTypeName(factory.create(ntName));
            readState(walker, state);
            return state;
        } finally {
            in.close();
        }
    } catch (IOException ioe) {
        e = ioe;
    // fall through
    } catch (FileSystemException fse) {
        e = fse;
    // fall through
    }
    String msg = "failed to read node state: " + id;
    log.debug(msg);
    throw new ItemStateException(msg, e);
}

Example 4 with NodeState

use of org.apache.jackrabbit.core.state.NodeState in project jackrabbit by apache.

the class NodePropBundle method createNodeState.

/**
     * Creates a node state from the values of this bundle
     * @param pMgr the persistence manager
     * @return the new nodestate
     */
public NodeState createNodeState(PersistenceManager pMgr) {
    NodeState state = pMgr.createNew(id);
    state.setParentId(parentId);
    state.setNodeTypeName(nodeTypeName);
    state.setMixinTypeNames(mixinTypeNames);
    state.setModCount(modCount);
    for (ChildNodeEntry e : childNodeEntries) {
        state.addChildNodeEntry(e.getName(), e.getId());
    }
    state.setPropertyNames(properties.keySet());
    // add fake property entries
    state.addPropertyName(NameConstants.JCR_PRIMARYTYPE);
    if (mixinTypeNames.size() > 0) {
        state.addPropertyName(NameConstants.JCR_MIXINTYPES);
    }
    // uuid is special...only if 'referenceable'
    if (isReferenceable) {
        state.addPropertyName(NameConstants.JCR_UUID);
    }
    for (NodeId nodeId : sharedSet) {
        state.addShare(nodeId);
    }
    return state;
}

Example 5 with NodeState

use of org.apache.jackrabbit.core.state.NodeState in project jackrabbit by apache.

the class InternalXAVersionManager method makeLocalCopy.

/**
     * Make a local copy of an internal version item. This will recreate the
     * (global) version item with state information from our own state
     * manager.
     * @param history source
     * @return the new copy
     * @throws RepositoryException if an error occurs
     */
private InternalVersionHistoryImpl makeLocalCopy(InternalVersionHistoryImpl history) throws RepositoryException {
    VersioningLock.ReadLock lock = acquireReadLock();
    try {
        NodeState state = (NodeState) stateMgr.getItemState(history.getId());
        NodeStateEx stateEx = new NodeStateEx(stateMgr, ntReg, state, null);
        return new InternalVersionHistoryImpl(this, stateEx);
    } catch (ItemStateException e) {
        throw new RepositoryException("Unable to make local copy", e);
    } finally {
        lock.release();
    }
}