/**
* Gets the where clause to resolve the current part of the path expression.
*
* @param objectId The id of the resource (without version information!) for that the current part
* shall be resolved.
* @param tsu The {@link TripleStoreUtility} to use.
* @return Returns the where clause.
* @throws TripleStoreSystemException e
*/
public StringBuffer getResolveCurrentWhereClause(
final String objectId, final TripleStoreUtility tsu) throws TripleStoreSystemException {
// Currently three attributes exist, that needs 'inverse' lookup:
// item:container and container:container and are stored as a
// relationship from parent to child. Additionally, object
// identifier need inverse lookup to get the correct dc identifier.
// Therefore, these attributes have to be handled in a special
// way.
return isInverse()
? tsu.getRetrieveWhereClause(
true, getCacheId(), objectId, null, getContentTypePredicateId(), getContentTypeTitle())
: tsu.getRetrieveWhereClause(false, getCacheId(), objectId, null, null, null);
}
/**
* resolve attribute assigned-on. check if tail is present and resolvable (dependent on variable
* SUPPORTED_ASSIGNED_ON_OBJECT_ATTRIBUTES). if tail is not resolvable, mark whole attribute as
* unresolvable.
*
* @param ctx EvaluationContext
* @param attributeIdValue whole attribute
* @param resolvableAttribute resolvable part of attribute
* @param tail tail after resolvable part
* @return Object[] result
* @throws de.escidoc.core.common.exceptions.system.WebserverSystemException
* @throws de.escidoc.core.common.exceptions.application.notfound.GrantNotFoundException
* @throws de.escidoc.core.common.exceptions.system.TripleStoreSystemException
* @throws de.escidoc.core.common.exceptions.application.notfound.ResourceNotFoundException
* @throws de.escidoc.core.common.exceptions.system.SystemException
*/
private Object[] resolveAssignedOnAttribute(
final EvaluationCtx ctx,
final String attributeIdValue,
final String resolvableAttribute,
final String tail)
throws TripleStoreSystemException, SystemException, GrantNotFoundException,
ResourceNotFoundException, WebserverSystemException {
EvaluationResult result;
final String userOrGroupId =
FinderModuleHelper.retrieveSingleResourceAttribute(ctx, Constants.URI_RESOURCE_ID, true);
final String grantId =
FinderModuleHelper.retrieveSingleResourceAttribute(ctx, Constants.URI_SUBRESOURCE_ID, true);
String assignedOnObjectId;
if (grantId == null || grantId.length() == 0) {
// if no grantId is present
// fetch grant-attribute from invocation-mapping
try {
assignedOnObjectId = fetchSingleResourceAttribute(ctx, resolvableAttribute + "-new");
} catch (final Exception e) {
// not assigned to an object
// so mark complete attribute as unresolvable
result =
CustomEvaluationResultBuilder.createSingleStringValueResult(
de.escidoc.core.common.business.Constants.UNRESOLVED_ATTRIBUTE_VALUE);
return new Object[] {result, attributeIdValue};
}
} else {
final RoleGrant grant =
resolvableAttribute.matches(".*" + XmlUtility.NAME_USER_ACCOUNT + ".*")
? getUserAccountGrant(ctx, userOrGroupId, grantId)
: getUserGroupGrant(ctx, grantId);
assertGrant(grantId, grant);
assignedOnObjectId = grant.getObjectId();
}
if (assignedOnObjectId == null) {
// not assigned on an object
// so mark complete attribute as unresolvable
result =
CustomEvaluationResultBuilder.createSingleStringValueResult(
de.escidoc.core.common.business.Constants.UNRESOLVED_ATTRIBUTE_VALUE);
return new Object[] {result, attributeIdValue};
}
// check if tailing attribute is resolvable for assigned object-type
if (tail != null) {
final String objectType = fetchObjectType(ctx, assignedOnObjectId);
if (objectType.equals(XmlUtility.NAME_COMPONENT) && tail.equals(XmlUtility.NAME_CONTEXT)) {
// if we have to resolve the context of a component,
// we first have to get the itemId and resolve context for
// the itemId
final List<String> itemIds =
FinderModuleHelper.retrieveFromTripleStore(
true,
tsu.getRetrieveWhereClause(
true, TripleStoreUtility.PROP_COMPONENT, assignedOnObjectId, null, null, null),
assignedOnObjectId,
TripleStoreUtility.PROP_COMPONENT,
this.tsu);
if (itemIds == null || itemIds.isEmpty() || itemIds.size() != 1) {
result =
CustomEvaluationResultBuilder.createResourceNotFoundResult(
new ItemNotFoundException(
"item for component " + assignedOnObjectId + " not found"));
} else {
assignedOnObjectId = itemIds.get(0);
}
}
}
result = CustomEvaluationResultBuilder.createSingleStringValueResult(assignedOnObjectId);
return new Object[] {result, resolvableAttribute};
}