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Added validation to custom activity form to ensure that end date does not precede start date

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rjy7 2010-04-15 21:43:33 +00:00
parent bca0df0570
commit 4359520ee8
1 changed files with 83 additions and 0 deletions
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webapp/src/edu/cornell/mannlib/vitro/webapp/edit/n3editing/StartDateBeforeEndDate.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.edit.n3editing;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.hp.hpl.jena.rdf.model.Literal;
public class StartDateBeforeEndDate implements N3Validator {
private String startFieldName;
private String endFieldName;
public StartDateBeforeEndDate(String startFieldName, String endFieldName){
this.startFieldName = startFieldName;
this.endFieldName = endFieldName;
}
public Map<String, String> validate(EditConfiguration editConfig,
EditSubmission editSub) {
Map<String, Literal> existingLiterals = editConfig.getLiteralsInScope();
Literal existingStartDate = existingLiterals.get(startFieldName);
Literal existingEndDate = existingLiterals.get(endFieldName);
Map<String, Literal> literalsFromForm = editSub.getLiteralsFromForm();
Literal formStartDate = literalsFromForm.get(startFieldName);
Literal formEndDate = literalsFromForm.get(endFieldName);
Map<String, String> errors = new HashMap<String, String>();
if (formStartDate != null && formEndDate != null) {
errors.putAll(checkDateLiterals(formStartDate, formEndDate));
} else if (formStartDate != null && existingEndDate != null) {
errors.putAll(checkDateLiterals(formStartDate, existingEndDate));
} else if (existingStartDate != null && formEndDate != null) {
errors.putAll(checkDateLiterals(existingStartDate, formEndDate));
} else if (existingStartDate != null && existingEndDate != null) {
errors
.putAll(checkDateLiterals(existingStartDate,
existingEndDate));
}
if (errors.size() != 0)
return errors;
else
return null;
}
private Map<String, String> checkDateLiterals(Literal startLit,
Literal endLit) {
Map<String, String> errors = new HashMap<String, String>();
Calendar startDate = getDateFromLiteral(startLit);
Calendar endDate = getDateFromLiteral(endLit);
try {
if (startDate.compareTo(endDate) > 0) {
errors.put(startFieldName, "Start date must be before end date");
errors.put(endFieldName, "End date must be after start date");
}
} catch (NullPointerException npe){
log.error("Cannot compare date to null.");
} catch (IllegalArgumentException iae) {
log.error("IllegalArgumentException");
}
return errors;
}
private Calendar getDateFromLiteral(Literal dateLit) {
String[] date = dateLit.getLexicalForm().split("-");
int year = Integer.parseInt(date[0]);
int day = date.length < 3 ? 1 : Integer.parseInt(date[2]);
int month = date.length < 2 ? 0 : Integer.parseInt(date[1]);
Calendar c = Calendar.getInstance();
c.set(year, month, day);
return c;
}
private Log log = LogFactory.getLog(StartDateBeforeEndDate.class);
}