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NIHVIVO-803 Reimplementation of author reordering so application logic is moved server-side. Currently now in addAuthorsToInformationResource1.jsp and addAuthorsToInformationResource1.js.

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rjy7 2010-08-20 21:06:03 +00:00
parent c7a70ca6b5
commit 15aeaaa2ae
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webapp/src/edu/cornell/mannlib/vitro/webapp/controller/edit/ReorderController.java Normal file
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/* $This file is distributed under the terms of the license in /doc/license.txt$ */
package edu.cornell.mannlib.vitro.webapp.controller.edit;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import edu.cornell.mannlib.vitro.webapp.beans.DataProperty;
import edu.cornell.mannlib.vitro.webapp.beans.DataPropertyStatement;
import edu.cornell.mannlib.vitro.webapp.beans.DataPropertyStatementImpl;
import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
import edu.cornell.mannlib.vitro.webapp.dao.DataPropertyDao;
import edu.cornell.mannlib.vitro.webapp.dao.DataPropertyStatementDao;
import edu.cornell.mannlib.vitro.webapp.dao.WebappDaoFactory;
/**
* This controller receives Ajax requests for reordering a list of individuals.
* Parameters:
* predicate: the data property used for ranking
* individuals: an ordered list of individuals to be ranked
* @author rjy7
*
*/
public class ReorderController extends PrimitiveRdfEdit {
private static final long serialVersionUID = 1L;
private static final Log log = LogFactory.getLog(ReorderController.class);
private static String RANK_PREDICATE_PARAMETER_NAME = "predicate";
private static String INDIVIDUAL_PREDICATE_PARAMETER_NAME = "individuals";
protected void processRequest(VitroRequest vreq, HttpServletResponse response) {
//String templateName = "autocompleteResults.ftl";
//Map<String, Object> map = new HashMap<String, Object>();
//Configuration config = getConfig(vreq);
//PortalFlag portalFlag = vreq.getPortalFlag();
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;
}
DataPropertyDao dpDao = wadf.getDataPropertyDao();
if( dpDao == null) {
errorMsg = "No DataPropertyDao 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;
}
DataProperty dprop = dpDao.getDataPropertyByURI(rankPredicate);
String rangeDatatype = dprop.getRangeDatatypeURI();
// 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?
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 individuals
DataPropertyStatement dps = new DataPropertyStatementImpl(individualUri, rankPredicate, String.valueOf(counter));
dps.setDatatypeURI(rangeDatatype);
dpsDao.insertNewDataPropertyStatement(dps);
counter++;
}
response.setStatus(HttpServletResponse.SC_OK);
}
protected void doError(HttpServletResponse response, String errorMsg, int httpstatus) {
super.doError(response, "Error: " + errorMsg, httpstatus);
}
}