/**
* Check if the named node type is in use in any workspace in the repository
*
* @param nodeTypeName the name of the node type to check
* @return true if at least one node is using that type; false otherwise
* @throws InvalidQueryException if there is an error searching for uses of the named node type
*/
boolean isNodeTypeInUse(Name nodeTypeName) throws InvalidQueryException {
String nodeTypeString = nodeTypeName.getString(context.getNamespaceRegistry());
String expression = "SELECT * from [" + nodeTypeString + "] LIMIT 1";
TypeSystem typeSystem = context.getValueFactories().getTypeSystem();
// Parsing must be done now ...
QueryCommand command = queryParser.parseQuery(expression, typeSystem);
assert command != null : "Could not parse " + expression;
Schemata schemata = getRepositorySchemata();
// Now query the entire repository for any nodes that use this node type ...
RepositoryCache repoCache = repository.repositoryCache();
RepositoryQueryManager queryManager = repository.queryManager();
Set<String> workspaceNames = repoCache.getWorkspaceNames();
Map<String, NodeCache> overridden = null;
NodeTypes nodeTypes = repository.nodeTypeManager().getNodeTypes();
RepositoryIndexes indexDefns = repository.queryManager().getIndexes();
CancellableQuery query =
queryManager.query(
context,
repoCache,
workspaceNames,
overridden,
command,
schemata,
indexDefns,
nodeTypes,
null,
null);
try {
QueryResults result = query.execute();
if (result.isEmpty()) return false;
if (result.getRowCount() < 0) {
// Try to get the first row ...
NodeSequence seq = result.getRows();
Batch batch = seq.nextBatch();
while (batch != null) {
if (batch.hasNext()) return true;
// It's not common for the first batch may be empty, but it's possible. So try the next
// batch ...
batch = seq.nextBatch();
}
return false;
}
return result.getRowCount() > 0;
} catch (RepositoryException e) {
logger.error(e, JcrI18n.errorCheckingNodeTypeUsage, nodeTypeName, e.getLocalizedMessage());
return true;
}
}
/**
* Resolves a Node given one of three possible passed parameters: 1) A fully qualified path to a
* Node (e.g. "/foo/bar/baz"), 2) a Node's UUID, or 3) the PoolId from a ContentPool.
*
* @param pathOrIdentifier One of three possible parameters: 1) A fully qualified path to a Node
* (e.g. "/foo/bar/baz"), 2) a Node's UUID, or 3) the PoolId from a ContentPool.
* @param resourceResolver
* @return If the Node cannot be resolved, <code>null</code> will be returned.
* @throws IllegalArgumentException
*/
public static Node resolveNode(
final String pathOrIdentifier, final ResourceResolver resourceResolver) {
if (pathOrIdentifier == null || "".equals(pathOrIdentifier)) {
throw new IllegalArgumentException("Passed argument was null or empty");
}
if (resourceResolver == null) {
throw new IllegalArgumentException("Resource resolver cannot be null");
}
Node node = null;
try {
if (pathOrIdentifier.startsWith("/")) { // it is a path specification
Resource r = resourceResolver.resolve(pathOrIdentifier);
if (r != null) {
node = r.adaptTo(Node.class);
}
} else {
// Not a full resource path, so try the two flavors of ID.
Session session = resourceResolver.adaptTo(Session.class);
// First, assume we have a UUID and try to resolve
try {
node = session.getNodeByIdentifier(pathOrIdentifier);
} catch (RepositoryException e) {
log.debug("Swallowed exception; i.e. normal operation: {}", e.getLocalizedMessage(), e);
}
if (node == null) {
log.warn("Unable to Tag Content Pool at this time, tried {} ", pathOrIdentifier);
// must not have been a UUID; resolve via poolId
// final String poolPath = CreateContentPoolServlet.hash(pathOrIdentifier);
// node = session.getNode(poolPath);
}
}
} catch (Throwable e) {
log.error(e.getLocalizedMessage(), e);
}
return node;
}
