public AbstractAjaxResponder(HttpServlet servlet, VitroRequest vreq, HttpServletResponse resp) {
this.servlet = servlet;
this.vreq = vreq;
this.resp = resp;
this.indDao = vreq.getWebappDaoFactory().getIndividualDao();
this.uaDao = vreq.getWebappDaoFactory().getUserAccountsDao();
}
@Override
protected void doRequest(VitroRequest vreq, HttpServletResponse response) {
String errorMsg = null;
String rankPredicate = vreq.getParameter(RANK_PREDICATE_PARAMETER_NAME);
if (rankPredicate == null) {
errorMsg = "No rank parameter specified";
log.error(errorMsg);
doError(response, errorMsg, HttpServletResponse.SC_BAD_REQUEST);
return;
}
String[] individualUris = vreq.getParameterValues(INDIVIDUAL_PREDICATE_PARAMETER_NAME);
if (individualUris == null || individualUris.length == 0) {
errorMsg = "No individuals specified";
log.error(errorMsg);
doError(response, errorMsg, HttpServletResponse.SC_BAD_REQUEST);
return;
}
WebappDaoFactory wadf = vreq.getWebappDaoFactory();
if (vreq.getWebappDaoFactory() == null) {
errorMsg = "No WebappDaoFactory available";
log.error(errorMsg);
doError(response, errorMsg, HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
DataPropertyStatementDao dpsDao = wadf.getDataPropertyStatementDao();
if (dpsDao == null) {
errorMsg = "No DataPropertyStatementDao available";
log.error(errorMsg);
doError(response, errorMsg, HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
// check permissions
// TODO: (bdc34)This is not yet implemented, must check the IDs against the policies for
// permissons before doing an edit!
// rjy7 This should be inherited from the superclass
boolean hasPermission = true;
if (!hasPermission) {
// if not okay, send error message
doError(response, "Insufficent permissions", HttpStatus.SC_UNAUTHORIZED);
return;
}
// This may not be the most efficient way. Should we instead build up a Model of retractions and
// additions, so
// we only hit the database once?
reorderIndividuals(individualUris, vreq, rankPredicate);
response.setStatus(HttpServletResponse.SC_OK);
}
// Prepare for update or non-update
// Originally included in edit request dispatch controller but moved here due to
// exceptions such as default add missing individual form
void prepare(VitroRequest vreq, EditConfigurationVTwo editConfig) {
// setup the model selectors for query, write and display models on editConfig
setupModelSelectorsFromVitroRequest(vreq, editConfig);
OntModel queryModel = vreq.getJenaOntModel(); // (OntModel)vreq.getAttribute("jenaOntModel");
if (editConfig.getSubjectUri() == null)
editConfig.setSubjectUri(EditConfigurationUtils.getSubjectUri(vreq));
if (editConfig.getPredicateUri() == null)
editConfig.setPredicateUri(EditConfigurationUtils.getPredicateUri(vreq));
String objectUri = EditConfigurationUtils.getObjectUri(vreq);
Integer dataKey = EditConfigurationUtils.getDataHash(vreq);
if (objectUri != null && !objectUri.trim().isEmpty()) {
// editing existing object
if (editConfig.getObject() == null)
editConfig.setObject(EditConfigurationUtils.getObjectUri(vreq));
editConfig.prepareForObjPropUpdate(queryModel);
} else if (dataKey != null) { // edit of a data prop statement
// do nothing since the data prop form generator must take care of it
editConfig.prepareForDataPropUpdate(
queryModel, vreq.getWebappDaoFactory().getDataPropertyDao());
} else {
// this might be a create new or a form
editConfig.prepareForNonUpdate(queryModel);
}
}
private void processOutputModelRequest(VitroRequest vreq, HttpServletResponse response) {
String modelNameStr = vreq.getParameter("modelName");
Model model = getModel(modelNameStr, vreq);
JenaOutputUtils.setNameSpacePrefixes(model, vreq.getWebappDaoFactory());
model.enterCriticalSection(Lock.READ);
try {
OutputStream out = response.getOutputStream();
response.setContentType("application/x-turtle");
// out.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n".getBytes());
model.write(out, "TTL");
out.flush();
out.close();
} catch (com.hp.hpl.jena.shared.CannotEncodeCharacterException cece) {
// there's got to be a better way to do this
byte[] badCharBytes = String.valueOf(cece.getBadChar()).getBytes();
String errorMsg = "Cannot encode character with byte values: (decimal) ";
for (int i = 0; i < badCharBytes.length; i++) {
errorMsg += badCharBytes[i];
}
throw new RuntimeException(errorMsg, cece);
} catch (Exception e) {
log.error(e, e);
} finally {
model.leaveCriticalSection();
}
}
@Override
protected ResponseValues processRequest(VitroRequest vreq) {
// get the EditConfiguration
EditConfigurationVTwo configuration = EditConfigurationUtils.getEditConfiguration(vreq);
if (configuration == null) throw new Error("No edit configuration found.");
// get the EditSubmission
MultiValueEditSubmission submission =
new MultiValueEditSubmission(vreq.getParameterMap(), configuration);
EditSubmissionUtils.putEditSubmissionInSession(vreq.getSession(), submission);
// if errors, return error response
ResponseValues errorResponse = doValidationErrors(vreq, configuration, submission);
if (errorResponse != null) return errorResponse;
// get the models to work with in case the write model and query model are not the defaults
OntModel queryModel = configuration.getQueryModelSelector().getModel(vreq, getServletContext());
OntModel writeModel = configuration.getWriteModelSelector().getModel(vreq, getServletContext());
// If data property check for back button confusion
boolean isBackButton = checkForBackButtonConfusion(configuration, vreq, queryModel);
if (isBackButton) {
// Process back button issues and do a return here
return doProcessBackButton(configuration, submission, vreq);
}
// Otherwise, process as usual
AdditionsAndRetractions changes;
try {
ProcessRdfForm prf =
new ProcessRdfForm(configuration, new NewURIMakerVitro(vreq.getWebappDaoFactory()));
changes = prf.process(configuration, submission);
} catch (Exception e) {
throw new Error(e);
}
if (configuration.isUseDependentResourceDelete())
changes = ProcessRdfForm.addDependentDeletes(changes, queryModel);
N3EditUtils.preprocessModels(changes, configuration, vreq);
ProcessRdfForm.applyChangesToWriteModel(
changes, queryModel, writeModel, EditN3Utils.getEditorUri(vreq));
// Here we are trying to get the entity to return to URL,
// More involved processing for data property apparently
String entityToReturnTo = N3EditUtils.processEntityToReturnTo(configuration, submission, vreq);
// For data property processing, need to update edit configuration for back button
N3EditUtils.updateEditConfigurationForBackButton(configuration, submission, vreq, writeModel);
PostEditCleanupController.doPostEditCleanup(vreq);
return PostEditCleanupController.doPostEditRedirect(vreq, entityToReturnTo);
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
super.doGet(req, resp);
resp.setContentType("application/json");
VitroRequest vreq = new VitroRequest(req);
try {
if (vreq.getParameter("query") != null || vreq.getParameter("queries") != null) {
JSONObject qJson = getResult(vreq, req, resp);
log.debug("result: " + qJson.toString());
String responseStr =
(vreq.getParameter("callback") == null)
? qJson.toString()
: vreq.getParameter("callback") + "(" + qJson.toString() + ")";
// System.out.println("JSONReconcileServlet result: " + responseStr);
ServletOutputStream out = resp.getOutputStream();
out.print(responseStr);
} else { // metadata
String defaultNamespace = null;
String defaultTypeList = null;
String serverName = null;
int serverPort = req.getServerPort();
if (vreq.getWebappDaoFactory() != null) {
defaultNamespace = vreq.getWebappDaoFactory().getDefaultNamespace();
}
defaultTypeList =
ConfigurationProperties.getBean(req).getProperty("Vitro.reconcile.defaultTypeList");
serverName = req.getServerName();
JSONObject metaJson =
getMetadata(req, resp, defaultNamespace, defaultTypeList, serverName, serverPort);
String callbackStr =
(vreq.getParameter("callback") == null) ? "" : vreq.getParameter("callback");
ServletOutputStream out = resp.getOutputStream();
out.print(callbackStr + "(" + metaJson.toString() + ")");
}
} catch (Exception ex) {
log.warn(ex, ex);
}
}
// Check for "back button" confusion specifically for data property editing although need to check
// if this applies to object property editing?
// TODO: Check if only applicable to data property editing
private boolean checkForBackButtonConfusion(
EditConfigurationVTwo editConfig, VitroRequest vreq, Model model) {
// back button confusion limited to data property
if (EditConfigurationUtils.isObjectProperty(editConfig.getPredicateUri(), vreq)) {
return false;
}
WebappDaoFactory wdf = vreq.getWebappDaoFactory();
if (!editConfig.isDataPropertyUpdate()) return false;
Integer dpropHash = editConfig.getDatapropKey();
DataPropertyStatement dps =
RdfLiteralHash.getPropertyStmtByHash(
editConfig.getSubjectUri(), editConfig.getPredicateUri(), dpropHash, model);
if (dps != null) return false;
DataProperty dp = wdf.getDataPropertyDao().getDataPropertyByURI(editConfig.getPredicateUri());
if (dp != null) {
if (dp.getDisplayLimit() == 1 /* || dp.isFunctional() */) return false;
else return true;
}
return false;
}
@Override
protected ResponseValues processRequest(VitroRequest vreq) {
// There may be other non-html formats in the future
Format format = getFormat(vreq);
boolean wasXmlRequested = Format.XML == format;
log.debug("xml was the requested format");
boolean wasHtmlRequested = !wasXmlRequested;
try {
Portal portal = vreq.getPortal();
PortalFlag portalFlag = vreq.getPortalFlag();
// make sure an IndividualDao is available
if (vreq.getWebappDaoFactory() == null
|| vreq.getWebappDaoFactory().getIndividualDao() == null) {
log.error("Could not get webappDaoFactory or IndividualDao");
throw new Exception("Could not access model.");
}
IndividualDao iDao = vreq.getWebappDaoFactory().getIndividualDao();
VClassGroupDao grpDao = vreq.getWebappDaoFactory().getVClassGroupDao();
VClassDao vclassDao = vreq.getWebappDaoFactory().getVClassDao();
String alphaFilter = vreq.getParameter("alpha");
int startIndex = 0;
try {
startIndex = Integer.parseInt(vreq.getParameter("startIndex"));
} catch (Throwable e) {
startIndex = 0;
}
log.debug("startIndex is " + startIndex);
int hitsPerPage = defaultHitsPerPage;
try {
hitsPerPage = Integer.parseInt(vreq.getParameter("hitsPerPage"));
} catch (Throwable e) {
hitsPerPage = defaultHitsPerPage;
}
log.debug("hitsPerPage is " + hitsPerPage);
int maxHitSize = defaultMaxSearchSize;
if (startIndex >= defaultMaxSearchSize - hitsPerPage)
maxHitSize = startIndex + defaultMaxSearchSize;
if (alphaFilter != null) {
maxHitSize = maxHitSize * 2;
hitsPerPage = maxHitSize;
}
log.debug("maxHitSize is " + maxHitSize);
String qtxt = vreq.getParameter(VitroQuery.QUERY_PARAMETER_NAME);
Analyzer analyzer = getAnalyzer(getServletContext());
Query query = null;
try {
query = getQuery(vreq, portalFlag, analyzer, qtxt);
log.debug("query for '" + qtxt + "' is " + query.toString());
} catch (ParseException e) {
return doBadQuery(portal, qtxt, format);
}
IndexSearcher searcherForRequest = LuceneIndexFactory.getIndexSearcher(getServletContext());
TopDocs topDocs = null;
try {
topDocs = searcherForRequest.search(query, null, maxHitSize);
} catch (Throwable t) {
log.error("in first pass at search: " + t);
// this is a hack to deal with odd cases where search and index threads interact
try {
wait(150);
topDocs = searcherForRequest.search(query, null, maxHitSize);
} catch (Exception ex) {
log.error(ex);
String msg = makeBadSearchMessage(qtxt, ex.getMessage());
if (msg == null) {
msg = "The search request contained errors.";
}
return doFailedSearch(msg, qtxt, format);
}
}
if (topDocs == null || topDocs.scoreDocs == null) {
log.error("topDocs for a search was null");
String msg = "The search request contained errors.";
return doFailedSearch(msg, qtxt, format);
}
int hitsLength = topDocs.scoreDocs.length;
if (hitsLength < 1) {
return doNoHits(qtxt, format);
}
log.debug("found " + hitsLength + " hits");
int lastHitToShow = 0;
if ((startIndex + hitsPerPage) > hitsLength) {
lastHitToShow = hitsLength;
} else {
lastHitToShow = startIndex + hitsPerPage - 1;
}
List<Individual> beans = new LinkedList<Individual>();
for (int i = startIndex; i < topDocs.scoreDocs.length; i++) {
try {
if ((i >= startIndex) && (i <= lastHitToShow)) {
Document doc = searcherForRequest.doc(topDocs.scoreDocs[i].doc);
String uri = doc.get(Entity2LuceneDoc.term.URI);
Individual ent = new IndividualImpl();
ent.setURI(uri);
ent = iDao.getIndividualByURI(uri);
if (ent != null) beans.add(ent);
}
} catch (Exception e) {
log.error("problem getting usable Individuals from search " + "hits" + e.getMessage());
}
}
ParamMap pagingLinkParams = new ParamMap();
pagingLinkParams.put("querytext", qtxt);
pagingLinkParams.put("hitsPerPage", String.valueOf(hitsPerPage));
if (wasXmlRequested) {
pagingLinkParams.put(XML_REQUEST_PARAM, "1");
}
/* Start putting together the data for the templates */
Map<String, Object> body = new HashMap<String, Object>();
String classGroupParam = vreq.getParameter("classgroup");
boolean classGroupFilterRequested = false;
if (!StringUtils.isEmpty(classGroupParam)) {
VClassGroup grp = grpDao.getGroupByURI(classGroupParam);
classGroupFilterRequested = true;
if (grp != null && grp.getPublicName() != null)
body.put("classGroupName", grp.getPublicName());
}
String typeParam = vreq.getParameter("type");
boolean typeFiltereRequested = false;
if (!StringUtils.isEmpty(typeParam)) {
VClass type = vclassDao.getVClassByURI(typeParam);
typeFiltereRequested = true;
if (type != null && type.getName() != null) body.put("typeName", type.getName());
}
/* Add classgroup and type refinement links to body */
if (wasHtmlRequested) {
// Search request includes no classgroup and no type, so add classgroup search refinement
// links.
if (!classGroupFilterRequested && !typeFiltereRequested) {
List<VClassGroup> classgroups = getClassGroups(grpDao, topDocs, searcherForRequest);
List<VClassGroupSearchLink> classGroupLinks =
new ArrayList<VClassGroupSearchLink>(classgroups.size());
for (VClassGroup vcg : classgroups) {
if (vcg.getPublicName() != null) {
classGroupLinks.add(new VClassGroupSearchLink(qtxt, vcg));
}
}
body.put("classGroupLinks", classGroupLinks);
// Search request is for a classgroup, so add rdf:type search refinement links
// but try to filter out classes that are subclasses
} else if (classGroupFilterRequested && !typeFiltereRequested) {
List<VClass> vClasses = getVClasses(vclassDao, topDocs, searcherForRequest);
List<VClassSearchLink> vClassLinks = new ArrayList<VClassSearchLink>(vClasses.size());
for (VClass vc : vClasses) {
vClassLinks.add(new VClassSearchLink(qtxt, vc));
}
body.put("classLinks", vClassLinks);
pagingLinkParams.put("classgroup", classGroupParam);
// This case is never displayed
} else if (!StringUtils.isEmpty(alphaFilter)) {
body.put("alphas", getAlphas(topDocs, searcherForRequest));
alphaSortIndividuals(beans);
} else {
pagingLinkParams.put("type", typeParam);
}
}
// Convert search result individuals to template model objects
body.put(
"individuals", ListedIndividualTemplateModel.getIndividualTemplateModelList(beans, vreq));
body.put("querytext", qtxt);
body.put("title", qtxt + " - " + portal.getAppName() + " Search Results");
body.put("hitsLength", hitsLength);
body.put("startIndex", startIndex);
body.put(
"pagingLinks",
getPagingLinks(
startIndex,
hitsPerPage,
hitsLength,
maxHitSize,
vreq.getServletPath(),
pagingLinkParams));
if (startIndex != 0) {
body.put(
"prevPage",
getPreviousPageLink(startIndex, hitsPerPage, vreq.getServletPath(), pagingLinkParams));
}
if (startIndex < (hitsLength - hitsPerPage)) {
body.put(
"nextPage",
getNextPageLink(startIndex, hitsPerPage, vreq.getServletPath(), pagingLinkParams));
}
String template = templateTable.get(format).get(Result.PAGED);
return new TemplateResponseValues(template, body);
} catch (Throwable e) {
return doSearchError(e, format);
}
}
/** may be null */
private Object getName(EditConfigurationVTwo config, VitroRequest vreq) {
Individual ind =
vreq.getWebappDaoFactory().getIndividualDao().getIndividualByURI(config.getSubjectUri());
if (ind == null) return null;
else return ind.getName();
}
private void reorderIndividuals(
String[] individualUris, VitroRequest vreq, String rankPredicate) {
// Testing new mechanism
OntModel writeModel = vreq.getOntModelSelector().getABoxModel();
Model additions = ModelFactory.createDefaultModel();
Model retractions = ModelFactory.createDefaultModel();
Property rankPredicateProperty = ResourceFactory.createProperty(rankPredicate);
DataProperty dp =
vreq.getWebappDaoFactory().getDataPropertyDao().getDataPropertyByURI(rankPredicate);
String datapropURI = dp.getRangeDatatypeURI();
int counter = 1;
for (String individualUri : individualUris) {
Resource individualResource = ResourceFactory.createResource(individualUri);
// Deletions are all old statements with rank predicate
retractions.add(
writeModel.listStatements(individualResource, rankPredicateProperty, (RDFNode) null));
log.debug("retractions = " + retractions);
// New statement is new literal with the data property from
Literal dataLiteral = null;
if (datapropURI != null && datapropURI.length() > 0) {
dataLiteral =
ResourceFactory.createTypedLiteral(
String.valueOf(counter), TypeMapper.getInstance().getSafeTypeByName(datapropURI));
} else {
dataLiteral = ResourceFactory.createPlainLiteral(String.valueOf(counter));
}
additions.add(individualResource, rankPredicateProperty, dataLiteral);
log.debug("additions = " + additions);
counter++;
}
Lock lock = null;
try {
lock = writeModel.getLock();
lock.enterCriticalSection(Lock.WRITE);
writeModel.getBaseModel().notifyEvent(new EditEvent(null, true));
writeModel.remove(retractions);
writeModel.add(additions);
} catch (Throwable t) {
log.error("error adding edit change n3required model to in memory model \n" + t.getMessage());
} finally {
writeModel.getBaseModel().notifyEvent(new EditEvent(null, false));
lock.leaveCriticalSection();
}
// old code that for some reason doesn't seem to actually commit the changes
/*
* int counter = 1;
for (String individualUri : individualUris) {
// Retract all existing rank statements for this individual
dpsDao.deleteDataPropertyStatementsForIndividualByDataProperty(individualUri, rankPredicate);
// Then add the new rank statement for this individual
// insertNewDataPropertyStatement will insert the rangeDatatype of the property, so we don't need to set that here.
dpsDao.insertNewDataPropertyStatement(new DataPropertyStatementImpl(individualUri, rankPredicate, String.valueOf(counter)));
counter++;
}
*/
}
public PropertyListConfig(
ObjectPropertyTemplateModel optm,
TemplateLoader templateLoader,
VitroRequest vreq,
ObjectProperty op,
boolean editing)
throws InvalidConfigurationException {
this.optm = optm;
this.vreq = vreq;
WebappDaoFactory wadf = vreq.getWebappDaoFactory();
this.templateLoader = templateLoader;
// Get the custom config filename
String configFileName = wadf.getObjectPropertyDao().getCustomListViewConfigFileName(op);
if (configFileName == null) { // no custom config; use default config
configFileName = DEFAULT_CONFIG_FILE_NAME;
}
log.debug(
"Using list view config file " + configFileName + " for object property " + op.getURI());
String configFilePath = getConfigFilePath(configFileName);
try {
File config = new File(configFilePath);
if (!isDefaultConfig(configFileName) && !config.exists()) {
log.warn(
"Can't find config file "
+ configFilePath
+ " for object property "
+ op.getURI()
+ "\n"
+ ". Using default config file instead.");
configFilePath = getConfigFilePath(DEFAULT_CONFIG_FILE_NAME);
// Should we test for the existence of the default, and throw an error if it doesn't exist?
}
setValuesFromConfigFile(configFilePath, wadf, editing);
} catch (Exception e) {
log.error(
"Error processing config file " + configFilePath + " for object property " + op.getURI(),
e);
// What should we do here?
}
if (!isDefaultConfig(configFileName)) {
ConfigError configError = checkConfiguration();
if (configError != null) { // the configuration contains an error
// If this is a collated property, throw an error: this results in creating an
// UncollatedPropertyTemplateModel instead.
if (optm instanceof CollatedObjectPropertyTemplateModel) {
throw new InvalidConfigurationException(configError.getMessage());
}
// Otherwise, switch to the default config
log.warn(
"Invalid list view config for object property "
+ op.getURI()
+ " in "
+ configFilePath
+ ":\n"
+ configError
+ " Using default config instead.");
configFilePath = getConfigFilePath(DEFAULT_CONFIG_FILE_NAME);
setValuesFromConfigFile(configFilePath, wadf, editing);
}
}
isDefaultConfig = isDefaultConfig(configFileName);
}
