in jackrabbit-core/src/main/java/org/apache/jackrabbit/core/BatchedItemOperations.java [1585:1818]
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);
// make sure existing node is not the parent
// 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);
/**
* special handling required for child nodes with special semantics
* (e.g. those defined by nt:version, et.al.)
*
* todo FIXME delegate to 'node type instance handler'
*/
/**
* 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 {
// for simple versionable, we just initialize the
// 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);
}
}