/**
* Obtain values from XML an create value object ContentRelation.
*
* @param xml The content relation XML (validated by schema).
* @return ContentRelation
* @throws InvalidContentException Thrown if content is invalid
* @throws MissingAttributeValueException Thrown if attribute value is missing
* @throws SystemException Thrown if internal error occur
* @throws de.escidoc.core.common.exceptions.application.invalid.XmlCorruptedException
*/
private static ContentRelationCreate parseContentRelation(final String xml)
throws MissingAttributeValueException, InvalidContentException, SystemException,
XmlCorruptedException {
final StaxParser sp = new StaxParser();
final ContentRelationHandler contentRelationHandler = new ContentRelationHandler(sp);
sp.addHandler(contentRelationHandler);
try {
sp.parse(xml);
} catch (final InvalidContentException e) {
throw new InvalidContentException(e.getMessage(), e);
} catch (final RelationPredicateNotFoundException e) {
// shouldn't happen
throw new SystemException(e);
} catch (final XmlCorruptedException e) {
throw new XmlCorruptedException(e.getMessage(), e);
} catch (final MissingAttributeValueException e) {
throw new MissingAttributeValueException(e.getMessage(), e);
} catch (final InvalidStatusException e) {
// shouldn't happen
throw new SystemException(e);
} catch (final SystemException e) {
throw new SystemException(null, e);
} catch (final Exception e) {
XmlUtility.handleUnexpectedStaxParserException(null, e);
}
return contentRelationHandler.getContentRelation();
}
/**
* See Interface for functional description.
*
* @param xmlData aggregationDefinition as xml in aggregationDefinition schema.
* @return Returns the XML representation of the resource.
* @throws MissingMethodParameterException ex
* @throws ScopeNotFoundException ex
* @throws SystemException ex
* @see de.escidoc.core.sm.business.interfaces
* .AggregationDefinitionHandlerInterface#create(java.lang.String)
*/
@Override
@Transactional(rollbackFor = {SystemException.class, RuntimeException.class})
public String create(final String xmlData)
throws MissingMethodParameterException, ScopeNotFoundException, SystemException {
if (xmlData == null || xmlData.length() == 0) {
throw new MissingMethodParameterException("xml may not be null");
}
// parse
final StaxParser sp = new StaxParser();
final AggregationDefinitionStaxHandler handler = new AggregationDefinitionStaxHandler(sp);
sp.addHandler(handler);
try {
sp.parse(xmlData);
} catch (final Exception e) {
throw new SystemException(e);
}
final String scopeId = handler.getAggregationDefinition().getScope().getId();
final Scope scope = scopesDao.retrieve(scopeId);
// get AggregationDefinitionObject to insert aggregation-definition
// into database
final AggregationDefinition aggregationDefinition = handler.getAggregationDefinition();
aggregationDefinition.setCreatorId(utility.getCurrentUserId());
aggregationDefinition.setCreationDate(new Timestamp(System.currentTimeMillis()));
aggregationDefinition.setScope(scope);
dao.save(aggregationDefinition);
handler.setAggregationDefinition(aggregationDefinition);
// AggregationStatisticDataSelectors
for (final AggregationStatisticDataSelector selector :
handler.getAggregationStatisticDataSelectors()) {
dao.save(selector);
}
aggregationDefinition.setAggregationStatisticDataSelectors(
handler.getAggregationStatisticDataSelectors());
// AggregationTables
for (final AggregationTable aggregationTable : handler.getAggregationTables()) {
dao.save(aggregationTable);
}
aggregationDefinition.setAggregationTables(handler.getAggregationTables());
// Get databaseTableVos for all Aggregation-Tables
// defined in Aggregation Definition
final Collection<DatabaseTableVo> databaseTableVos =
generateAggregationDatabaseTableVos(aggregationDefinition);
if (databaseTableVos != null) {
for (final DatabaseTableVo databaseTableVo : databaseTableVos) {
// create aggregation table in Database
dbAccessor.createTable(databaseTableVo);
}
}
return renderer.render(aggregationDefinition);
}
/**
* Retrieve the properties of the last version (RELS-EXT) and inject values into
* ContentRelationCreate object.
*
* @param cr ContentRelation object
* @throws SystemException Thrown in case of internal failure.
* @throws ContentRelationNotFoundException Thrown if resource with provided id could not be found
* in Fedora repository.
*/
private static void setRelsExtValues(final ContentRelationCreate cr)
throws SystemException, ContentRelationNotFoundException {
// retrieve resource with id from Fedora
final Datastream relsExt;
try {
relsExt = new Datastream(Datastream.RELS_EXT_DATASTREAM, cr.getObjid(), null);
} catch (final StreamNotFoundException e) {
throw new ContentRelationNotFoundException(
"Content Relation with id '" + cr.getObjid() + "' could not be found.", e);
}
final StaxParser sp = new StaxParser();
final RelsExtReadHandler eve = new RelsExtReadHandler(sp);
eve.cleanIdentifier(true);
sp.addHandler(eve);
try {
sp.parse(relsExt.getStream());
} catch (final Exception e) {
throw new WebserverSystemException(e);
}
final List<Triple> triples = eve.getElementValues().getTriples();
// write triple values into ContentRelation object
for (final Triple triple : triples) {
if (triple.getPredicate().equals(TripleStoreUtility.PROP_FRAMEWORK_BUILD)) {
cr.setBuildNumber(triple.getObject());
}
// creator --------------
else if (triple.getPredicate().equals(TripleStoreUtility.PROP_CREATED_BY_ID)) {
cr.getProperties().setCreatedById(triple.getObject());
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_CREATED_BY_TITLE)) {
cr.getProperties().setCreatedByName(triple.getObject());
}
// modifier --------------
else if (triple.getPredicate().equals(TripleStoreUtility.PROP_MODIFIED_BY_ID)) {
cr.getProperties().setModifiedById(triple.getObject());
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_MODIFIED_BY_TITLE)) {
cr.getProperties().setModifiedByName(triple.getObject());
}
// public-status --------------
else if (triple.getPredicate().equals(TripleStoreUtility.PROP_PUBLIC_STATUS)) {
final StatusType st;
try {
st = StatusType.getStatusType(triple.getObject());
} catch (final InvalidStatusException e) {
// shouldn't happen
throw new SystemException(e);
}
cr.getProperties().setStatus(st);
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_PUBLIC_STATUS_COMMENT)) {
cr.getProperties().setStatusComment(triple.getObject());
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_OBJECT_TYPE)) {
// this is not the ContentRelation type, this is the type of
// resource
if (!(Constants.CONTENT_RELATION2_OBJECT_TYPE.equals(triple.getObject())
|| (Constants.RDF_NAMESPACE_URI + "Statement").equals(triple.getObject()))) {
throw new WebserverSystemException("Resource is not from type ContentRelation.");
}
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_CONTENT_RELATION_SUBJECT)) {
cr.setSubject(triple.getObject());
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_CONTENT_RELATION_OBJECT)) {
cr.setObject(triple.getObject());
} else if (triple
.getPredicate()
.equals(TripleStoreUtility.PROP_CONTENT_RELATION_DESCRIPTION)) {
cr.getProperties().setDescription(triple.getObject());
} else if (triple.getPredicate().equals(TripleStoreUtility.PROP_CONTENT_RELATION_TYPE)) {
try {
cr.setType(new URI(triple.getObject()));
} catch (final URISyntaxException e) {
// shouldn't happen
throw new SystemException("Stored value for URI in invalid.", e);
}
} else if (triple
.getPredicate()
.equals(TripleStoreUtility.PROP_CONTENT_RELATION_OBJECT_VERSION)) {
cr.setObjectVersion(triple.getObject());
} else {
// add values for mapping
LOGGER.warn("Predicate not mapped " + triple.getPredicate() + " = " + triple.getObject());
}
}
}