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/**
* Copyright (c) 2015, The Apereo Foundation
*
* Licensed under the Educational Community License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://opensource.org/licenses/ecl2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sakaiproject.samigo.impl;
import java.util.HashMap;
import java.util.Map;
import java.util.Observable;
import java.util.Observer;
import lombok.extern.slf4j.Slf4j;
import lombok.Setter;
import org.apache.commons.lang3.StringUtils;
import org.sakaiproject.event.api.Event;
import org.sakaiproject.event.api.EventTrackingService;
import org.sakaiproject.samigo.util.SamigoConstants;
@Slf4j
public class SamigoObserver implements Observer {
public void init() {
log.info("init()");
eventTrackingService.addLocalObserver(this);
}
public void destroy(){
log.info("destroy");
eventTrackingService.deleteObserver(this);
}
public void update(Observable arg0, Object arg) {
if (!(arg instanceof Event)){
return;
}
Event event = (Event) arg;
String eventType = event.getEvent();
if(SamigoConstants.EVENT_ASSESSMENT_SUBMITTED_NOTI.equals(eventType)) {
log.debug("Assessment Submitted Event");
String hashMapString = event.getResource();
Map notiValues = stringToHashMap(hashMapString);
samigoETSProvider.notify(SamigoConstants.EVENT_ASSESSMENT_SUBMITTED, notiValues, event);
} else if(SamigoConstants.EVENT_ASSESSMENT_SUBMITTED_AUTO.equals(eventType)){
log.debug("Assessment Auto Submitted Event");
String hashMapString = event.getResource();
Map notiValues = stringToHashMap(hashMapString);
samigoETSProvider.notify(SamigoConstants.EVENT_ASSESSMENT_SUBMITTED_AUTO, notiValues, event);
} else if(SamigoConstants.EVENT_ASSESSMENT_SUBMITTED_TIMER_THREAD.equals(eventType)){
log.debug("Assessment Timed Submitted Event");
String hashMapString = event.getResource();
Map notiValues = stringToHashMap(hashMapString);
samigoETSProvider.notify(SamigoConstants.EVENT_ASSESSMENT_SUBMITTED_TIMER_THREAD, notiValues, event);
}
}
/*
* stringToHashMap
* Derived from http://stackoverflow.com/a/26486046
*/
private Map stringToHashMap(String hashMapString){
Map map = new HashMap<>();
hashMapString = StringUtils.substringBetween(hashMapString, "{", "}"); //remove curly brackets
String[] keyValuePairs = hashMapString.split(","); //split the string to create key-value pairs
for(String pair : keyValuePairs) //iterate over the pairs
{
String[] entry = pair.split("="); //split the pairs to get key and value
String key = StringUtils.trim(entry[0]);
if(entry.length == 2) {
if (key.equals("assessmentGradingID") || key.equals("publishedAssessmentID")) {
map.put(key, Long.valueOf(StringUtils.trim(entry[1])));
} else {
map.put(key, String.valueOf(StringUtils.trim(entry[1]))); //add them to the hashmap and trim whitespaces
}
} else{
map.put(key, "");
}
}
return map;
}
@Setter
private EventTrackingService eventTrackingService;
@Setter
private SamigoETSProviderImpl samigoETSProvider;
}
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