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package eu.etaxonomy.cdm.remote.controller;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.UUID;
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import javax.servlet.http.HttpServletRequest;
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import org.hibernate.envers.query.AuditEntity;
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import org.hibernate.envers.query.criteria.AuditCriterion;
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import org.joda.time.DateTime;
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import org.springframework.beans.TypeMismatchException;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.HttpStatus;
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import org.springframework.web.bind.MissingServletRequestParameterException;
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import org.springframework.web.bind.WebDataBinder;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.bind.annotation.InitBinder;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.ResponseStatus;
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import org.springframework.web.servlet.ModelAndView;
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import org.springmodules.cache.CachingModel;
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import org.springmodules.cache.provider.CacheProviderFacade;
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import eu.etaxonomy.cdm.api.service.IAuditEventService;
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import eu.etaxonomy.cdm.api.service.IIdentifiableEntityService;
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import eu.etaxonomy.cdm.api.service.pager.Pager;
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import eu.etaxonomy.cdm.model.common.IdentifiableEntity;
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import eu.etaxonomy.cdm.model.common.LSID;
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import eu.etaxonomy.cdm.model.view.AuditEvent;
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import eu.etaxonomy.cdm.model.view.AuditEventRecord;
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import eu.etaxonomy.cdm.persistence.dao.common.AuditEventSort;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.DeletedRecord;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.ErrorCode;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.Granularity;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.MetadataPrefix;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.ResumptionToken;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.SetSpec;
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import eu.etaxonomy.cdm.remote.dto.oaipmh.Verb;
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import eu.etaxonomy.cdm.remote.editor.IsoDateTimeEditor;
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import eu.etaxonomy.cdm.remote.editor.LSIDPropertyEditor;
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import eu.etaxonomy.cdm.remote.editor.MetadataPrefixEditor;
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import eu.etaxonomy.cdm.remote.editor.SetSpecEditor;
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import eu.etaxonomy.cdm.remote.exception.CannotDisseminateFormatException;
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import eu.etaxonomy.cdm.remote.exception.NoRecordsMatchException;
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public abstract class AbstractOaiPmhController<T extends IdentifiableEntity, SERVICE extends IIdentifiableEntityService<T>> {
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protected SERVICE service;
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protected IAuditEventService auditEventService;
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private String repositoryName;
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private String baseURL;
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private String protocolVersion;
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private String adminEmail;
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private String description;
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private Integer pageSize;
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public abstract void setService(SERVICE service);
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private CacheProviderFacade cacheProviderFacade;
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private CachingModel cachingModel;
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/**
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* sets cache name to be used
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*/
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@Autowired
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public void setCacheProviderFacade(CacheProviderFacade cacheProviderFacade) {
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this.cacheProviderFacade = cacheProviderFacade;
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}
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@Autowired
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public void setCachingModel(CachingModel cachingModel) {
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this.cachingModel = cachingModel;
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}
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/**
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* Subclasses should override this method to return a list of property
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* paths that should be initialized for the getRecord, listRecords methods
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* @return
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*/
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protected List<String> getPropertyPaths() {
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return new ArrayList<String>();
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}
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/**
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* Subclasses should override this method and add a collection of
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* eu.etaxonomy.cdm.remote.dto.oaipmh.Set objects called "sets" that
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* will be returned in the response
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* @param modelAndView
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*/
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protected void addSets(ModelAndView modelAndView) {
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modelAndView.addObject("sets",new HashSet<SetSpec>());
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}
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@Autowired
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public void setAuditEventService(IAuditEventService auditEventService) {
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this.auditEventService = auditEventService;
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}
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public void setRepositoryName(String repositoryName) {
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this.repositoryName = repositoryName;
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}
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public void setBaseURL(String baseURL) {
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this.baseURL = baseURL;
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}
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public void setProtocolVersion(String protocolVersion) {
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this.protocolVersion = protocolVersion;
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}
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public void setAdminEmail(String adminEmail) {
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this.adminEmail = adminEmail;
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}
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public void setDescription(String description) {
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this.description = description;
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}
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public void setPageSize(Integer pageSize) {
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this.pageSize = pageSize;
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}
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@InitBinder
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public void initBinder(WebDataBinder binder) {
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binder.registerCustomEditor(DateTime.class, new IsoDateTimeEditor());
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binder.registerCustomEditor(LSID.class, new LSIDPropertyEditor());
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binder.registerCustomEditor(MetadataPrefix.class, new MetadataPrefixEditor());
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binder.registerCustomEditor(SetSpec.class, new SetSpecEditor());
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}
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/**
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* CannotDisseminateFormatException thrown by MetadataPrefixEditor
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* @throws IdDoesNotExistException
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*/
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@RequestMapping(method = RequestMethod.GET,params = "verb=GetRecord")
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public ModelAndView getRecord(@RequestParam(value = "identifier", required = true) LSID identifier,@RequestParam(value = "metadataPrefix", required = true) MetadataPrefix metadataPrefix) throws IdDoesNotExistException {
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ModelAndView modelAndView = new ModelAndView();
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modelAndView.addObject("metadataPrefix", metadataPrefix);
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T object = service.find(identifier);
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Pager<AuditEventRecord<T>> results = service.pageAuditEvents(object,1,0,AuditEventSort.BACKWARDS,getPropertyPaths());
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if(results.getCount() == 0) {
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throw new IdDoesNotExistException(identifier);
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}
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modelAndView.addObject("object",results.getRecords().get(0));
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switch(metadataPrefix) {
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case RDF:
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modelAndView.setViewName("oai/getRecord.rdf");
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break;
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case OAI_DC:
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default:
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modelAndView.setViewName("oai/getRecord.dc");
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}
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return modelAndView;
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}
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/**
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* CannotDisseminateFormatException thrown by MetadataPrefixEditor
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* @throws IdDoesNotExistException
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*/
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@RequestMapping(method = RequestMethod.GET,params = "verb=ListMetadataFormats")
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public ModelAndView listMetadataFormats(@RequestParam(value = "identifier", required = false) LSID identifier) throws IdDoesNotExistException {
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ModelAndView modelAndView = new ModelAndView("oai/listMetadataFormats");
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T object = service.find(UUID.fromString("c34eb662-6bba-4ad7-b84e-dd98f2fd9788"));
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if(false && identifier != null) {
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object = service.find(identifier);
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if(object == null) {
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throw new IdDoesNotExistException(identifier);
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}
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}
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return modelAndView;
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}
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/**
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* CannotDisseminateFormatException thrown by MetadataPrefixEditor
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*/
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@RequestMapping(method = RequestMethod.GET,params = "verb=ListSets")
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public ModelAndView listSets() {
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ModelAndView modelAndView = new ModelAndView("oai/listSets");
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addSets(modelAndView);
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return modelAndView;
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}
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@RequestMapping(method = RequestMethod.GET,params = "verb=Identify")
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public ModelAndView identify() {
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ModelAndView modelAndView = new ModelAndView("oai/identify");
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modelAndView.addObject("repositoryName", repositoryName);
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modelAndView.addObject("baseURL",baseURL);
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modelAndView.addObject("protocolVersion",protocolVersion);
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modelAndView.addObject("deletedRecord",DeletedRecord.PERSISTENT);
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modelAndView.addObject("granularity",Granularity.YYYY_MM_DD_THH_MM_SS_Z);
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Pager<AuditEvent> auditEvents = auditEventService.list(0,1,AuditEventSort.FORWARDS);
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modelAndView.addObject("earliestDatestamp",auditEvents.getRecords().get(0).getDate());
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modelAndView.addObject("adminEmail",adminEmail);
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modelAndView.addObject("description",description);
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return modelAndView;
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}
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@RequestMapping(method = RequestMethod.GET, params = {"verb=ListIdentifiers", "!resumptionToken"})
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public ModelAndView listIdentifiers(@RequestParam(value = "from", required = false) DateTime from, @RequestParam(value = "until", required = false) DateTime until,@RequestParam(value = "metadataPrefix",required = true) MetadataPrefix metadataPrefix, @RequestParam(value = "set", required = false) SetSpec set) {
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ModelAndView modelAndView = new ModelAndView("oai/listIdentifiers");
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modelAndView.addObject("metadataPrefix",metadataPrefix);
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AuditEvent fromAuditEvent = null;
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if(from != null) { // if from is specified, use the event at that date
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modelAndView.addObject("from",from);
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fromAuditEvent = auditEventService.find(from);
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}
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AuditEvent untilAuditEvent = null;
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if(until != null) {
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modelAndView.addObject("until",until);
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untilAuditEvent = auditEventService.find(until);
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}
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Class clazz = null;
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if(set != null) {
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modelAndView.addObject("set",set);
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clazz = (Class)set.getSetClass();
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}
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List<AuditCriterion> criteria = new ArrayList<AuditCriterion>();
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criteria.add(AuditEntity.property("lsid_lsid").isNotNull());
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Pager<AuditEventRecord<T>> results = service.pageAuditEvents(clazz,fromAuditEvent,untilAuditEvent,criteria, pageSize, 0, AuditEventSort.FORWARDS,null);
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if(results.getCount() == 0) {
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throw new NoRecordsMatchException("No records match");
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}
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modelAndView.addObject("pager",results);
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if(results.getCount() > results.getRecords().size() && cacheProviderFacade != null) {
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ResumptionToken resumptionToken = new ResumptionToken(results, from, until, metadataPrefix, set);
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modelAndView.addObject("resumptionToken",resumptionToken);
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cacheProviderFacade.putInCache(resumptionToken.getValue(), cachingModel, resumptionToken);
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}
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return modelAndView;
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}
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@RequestMapping(method = RequestMethod.GET, params = {"verb=ListIdentifiers", "resumptionToken"})
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public ModelAndView listIdentifiers(@RequestParam(value = "resumptionToken",required = true) String rToken) {
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ResumptionToken resumptionToken;
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if(cacheProviderFacade != null && cacheProviderFacade.getFromCache(rToken, cachingModel) != null) {
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resumptionToken = (ResumptionToken) cacheProviderFacade.getFromCache(rToken, cachingModel);
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ModelAndView modelAndView = new ModelAndView("oai/listIdentifiers");
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modelAndView.addObject("metadataPrefix",resumptionToken.getMetadataPrefix());
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AuditEvent fromAuditEvent = null;
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if(resumptionToken.getFrom() != null) { // if from is specified, use the event at that date
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modelAndView.addObject("from",resumptionToken.getFrom());
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fromAuditEvent = auditEventService.find(resumptionToken.getFrom());
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}
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282
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AuditEvent untilAuditEvent = null;
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if(resumptionToken.getUntil() != null) {
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modelAndView.addObject("until",resumptionToken.getUntil());
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untilAuditEvent = auditEventService.find(resumptionToken.getUntil());
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}
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287
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288
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Class clazz = null;
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289
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if(resumptionToken.getSet() != null) {
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modelAndView.addObject("set",resumptionToken.getSet());
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clazz = (Class)resumptionToken.getSet().getSetClass();
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}
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293
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294
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List<AuditCriterion> criteria = new ArrayList<AuditCriterion>();
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295
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criteria.add(AuditEntity.property("lsid_lsid").isNotNull());
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Pager<AuditEventRecord<T>> results = service.pageAuditEvents(clazz,fromAuditEvent,untilAuditEvent,criteria, pageSize, (resumptionToken.getCursor().intValue() / pageSize) + 1, AuditEventSort.FORWARDS,null);
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297
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298
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if(results.getCount() == 0) {
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299
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throw new NoRecordsMatchException("No records match");
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300
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}
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301
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302
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modelAndView.addObject("pager",results);
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303
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304
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if(results.getCount() > ((results.getPageSize() * results.getCurrentIndex()) + results.getRecords().size())) {
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305
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resumptionToken.updateResults(results);
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306
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modelAndView.addObject("resumptionToken",resumptionToken);
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307
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cacheProviderFacade.putInCache(resumptionToken.getValue(),cachingModel, resumptionToken);
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308
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} else {
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309
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resumptionToken = ResumptionToken.emptyResumptionToken();
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310
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modelAndView.addObject("resumptionToken",resumptionToken);
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311
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cacheProviderFacade.removeFromCache(rToken,cachingModel);
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312
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}
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313
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314
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return modelAndView;
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315
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} else {
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316
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throw new BadResumptionTokenException();
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317
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}
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318
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}
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319
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320
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@RequestMapping(method = RequestMethod.GET, params = {"verb=ListRecords", "!resumptionToken"})
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321
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public ModelAndView listRecords(@RequestParam(value = "from", required = false) DateTime from, @RequestParam(value = "until", required = false) DateTime until,@RequestParam(value = "metadataPrefix", required = true) MetadataPrefix metadataPrefix, @RequestParam(value = "set", required = false) SetSpec set) {
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322
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323
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ModelAndView modelAndView = new ModelAndView();
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modelAndView.addObject("metadataPrefix",metadataPrefix);
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325
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326
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switch(metadataPrefix) {
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327
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case RDF:
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328
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modelAndView.setViewName("oai/listRecords.rdf");
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329
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break;
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330
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case OAI_DC:
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default:
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332
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modelAndView.setViewName("oai/listRecords.dc");
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}
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334
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335
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AuditEvent fromAuditEvent = null;
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336
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if(from != null) { // if from is specified, use the event at that date
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337
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modelAndView.addObject("from",from);
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338
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fromAuditEvent = auditEventService.find(from);
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339
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}
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340
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341
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AuditEvent untilAuditEvent = null;
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342
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if(until != null) {
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343
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modelAndView.addObject("until",until);
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344
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untilAuditEvent = auditEventService.find(until);
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345
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}
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346
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347
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Class clazz = null;
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348
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if(set != null) {
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349
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modelAndView.addObject("set",set);
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350
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clazz = (Class)set.getSetClass();
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351
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}
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352
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|
|
353
|
List<AuditCriterion> criteria = new ArrayList<AuditCriterion>();
|
|
354
|
criteria.add(AuditEntity.property("lsid_lsid").isNotNull());
|
|
355
|
Pager<AuditEventRecord<T>> results = service.pageAuditEvents(clazz,fromAuditEvent,untilAuditEvent,criteria, pageSize, 0, AuditEventSort.FORWARDS,getPropertyPaths());
|
|
356
|
|
|
357
|
if(results.getCount() == 0) {
|
|
358
|
throw new NoRecordsMatchException("No records match");
|
|
359
|
}
|
|
360
|
|
|
361
|
modelAndView.addObject("pager",results);
|
|
362
|
|
|
363
|
if(results.getCount() > results.getRecords().size() && cacheProviderFacade != null) {
|
|
364
|
ResumptionToken resumptionToken = new ResumptionToken(results, from, until, metadataPrefix, set);
|
|
365
|
modelAndView.addObject("resumptionToken",resumptionToken);
|
|
366
|
cacheProviderFacade.putInCache(resumptionToken.getValue(),cachingModel,resumptionToken);
|
|
367
|
}
|
|
368
|
|
|
369
|
return modelAndView;
|
|
370
|
}
|
|
371
|
|
|
372
|
@RequestMapping(method = RequestMethod.GET, params = {"verb=ListRecords", "resumptionToken"})
|
|
373
|
public ModelAndView listRecords(@RequestParam("resumptionToken") String rToken) {
|
|
374
|
|
|
375
|
ResumptionToken resumptionToken;
|
|
376
|
if(cacheProviderFacade != null && cacheProviderFacade.getFromCache(rToken,cachingModel) != null) {
|
|
377
|
resumptionToken = (ResumptionToken) cacheProviderFacade.getFromCache(rToken,cachingModel);
|
|
378
|
ModelAndView modelAndView = new ModelAndView();
|
|
379
|
modelAndView.addObject("metadataPrefix",resumptionToken.getMetadataPrefix());
|
|
380
|
|
|
381
|
switch (resumptionToken.getMetadataPrefix()) {
|
|
382
|
case RDF:
|
|
383
|
modelAndView.setViewName("oai/listRecords.rdf");
|
|
384
|
break;
|
|
385
|
case OAI_DC:
|
|
386
|
default:
|
|
387
|
modelAndView.setViewName("oai/listRecords.dc");
|
|
388
|
}
|
|
389
|
|
|
390
|
AuditEvent fromAuditEvent = null;
|
|
391
|
if(resumptionToken.getFrom() != null) { // if from is specified, use the event at that date
|
|
392
|
modelAndView.addObject("from",resumptionToken.getFrom());
|
|
393
|
fromAuditEvent = auditEventService.find(resumptionToken.getFrom());
|
|
394
|
}
|
|
395
|
|
|
396
|
AuditEvent untilAuditEvent = null;
|
|
397
|
if(resumptionToken.getUntil() != null) {
|
|
398
|
modelAndView.addObject("until",resumptionToken.getUntil());
|
|
399
|
untilAuditEvent = auditEventService.find(resumptionToken.getUntil());
|
|
400
|
}
|
|
401
|
|
|
402
|
Class clazz = null;
|
|
403
|
if(resumptionToken.getSet() != null) {
|
|
404
|
modelAndView.addObject("set",resumptionToken.getSet());
|
|
405
|
clazz = (Class)resumptionToken.getSet().getSetClass();
|
|
406
|
}
|
|
407
|
List<AuditCriterion> criteria = new ArrayList<AuditCriterion>();
|
|
408
|
criteria.add(AuditEntity.property("lsid_lsid").isNotNull());
|
|
409
|
Pager<AuditEventRecord<T>> results = service.pageAuditEvents(clazz,fromAuditEvent,untilAuditEvent,criteria, pageSize, (resumptionToken.getCursor().intValue() / pageSize) + 1, AuditEventSort.FORWARDS,getPropertyPaths());
|
|
410
|
|
|
411
|
if(results.getCount() == 0) {
|
|
412
|
throw new NoRecordsMatchException("No records match");
|
|
413
|
}
|
|
414
|
|
|
415
|
modelAndView.addObject("pager",results);
|
|
416
|
|
|
417
|
if(results.getCount() > ((results.getPageSize() * results.getCurrentIndex()) + results.getRecords().size())) {
|
|
418
|
resumptionToken.updateResults(results);
|
|
419
|
modelAndView.addObject("resumptionToken",resumptionToken);
|
|
420
|
cacheProviderFacade.putInCache(resumptionToken.getValue(),cachingModel,resumptionToken);
|
|
421
|
} else {
|
|
422
|
resumptionToken = ResumptionToken.emptyResumptionToken();
|
|
423
|
modelAndView.addObject("resumptionToken",resumptionToken);
|
|
424
|
cacheProviderFacade.removeFromCache(rToken,cachingModel);
|
|
425
|
}
|
|
426
|
|
|
427
|
return modelAndView;
|
|
428
|
} else {
|
|
429
|
throw new BadResumptionTokenException();
|
|
430
|
}
|
|
431
|
}
|
|
432
|
|
|
433
|
private ModelAndView doException(Exception ex, HttpServletRequest request, ErrorCode code) {
|
|
434
|
ModelAndView modelAndView = new ModelAndView("oai/exception");
|
|
435
|
modelAndView.addObject("message", ex.getMessage());
|
|
436
|
if(request.getParameter("verb") != null) {
|
|
437
|
try {
|
|
438
|
modelAndView.addObject("verb", Verb.fromValue(request.getParameter("verb")));
|
|
439
|
} catch(Exception e) {// prevent endless recursion
|
|
440
|
|
|
441
|
}
|
|
442
|
}
|
|
443
|
modelAndView.addObject("code",code);
|
|
444
|
return modelAndView;
|
|
445
|
}
|
|
446
|
|
|
447
|
@ResponseStatus(HttpStatus.BAD_REQUEST)
|
|
448
|
@ExceptionHandler({IllegalArgumentException.class,TypeMismatchException.class,MissingServletRequestParameterException.class})
|
|
449
|
public ModelAndView handleBadArgument(Exception ex, HttpServletRequest request) {
|
|
450
|
return doException(ex,request,ErrorCode.BAD_ARGUMENT);
|
|
451
|
}
|
|
452
|
|
|
453
|
@ResponseStatus(HttpStatus.BAD_REQUEST)
|
|
454
|
@ExceptionHandler(CannotDisseminateFormatException.class)
|
|
455
|
public ModelAndView handleCannotDisseminateFormat(Exception ex, HttpServletRequest request) {
|
|
456
|
return doException(ex,request,ErrorCode.CANNOT_DISSEMINATE_FORMAT);
|
|
457
|
}
|
|
458
|
|
|
459
|
@ResponseStatus(HttpStatus.BAD_REQUEST)
|
|
460
|
@ExceptionHandler(BadResumptionTokenException.class)
|
|
461
|
public ModelAndView handleBadResumptionToken(Exception ex, HttpServletRequest request) {
|
|
462
|
return doException(ex,request,ErrorCode.BAD_RESUMPTION_TOKEN);
|
|
463
|
}
|
|
464
|
|
|
465
|
@ExceptionHandler(NoRecordsMatchException.class)
|
|
466
|
public ModelAndView handleNoRecordsMatch(Exception ex, HttpServletRequest request) {
|
|
467
|
return doException(ex,request,ErrorCode.NO_RECORDS_MATCH);
|
|
468
|
}
|
|
469
|
|
|
470
|
@ResponseStatus(HttpStatus.NOT_FOUND)
|
|
471
|
@ExceptionHandler(IdDoesNotExistException.class)
|
|
472
|
public ModelAndView handleIdDoesNotExist(Exception ex, HttpServletRequest request) {
|
|
473
|
return doException(ex,request,ErrorCode.ID_DOES_NOT_EXIST);
|
|
474
|
}
|
|
475
|
|
|
476
|
|
|
477
|
}
|