001/*
002 *  Copyright 2021 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.plugins.joboffer.observer;
017
018import java.util.Map;
019import java.util.Set;
020
021import org.apache.avalon.framework.context.Context;
022import org.apache.avalon.framework.context.ContextException;
023import org.apache.avalon.framework.context.Contextualizable;
024import org.apache.avalon.framework.service.ServiceException;
025import org.apache.avalon.framework.service.ServiceManager;
026import org.apache.avalon.framework.service.Serviceable;
027import org.apache.cocoon.components.ContextHelper;
028import org.apache.cocoon.environment.Request;
029
030import org.ametys.cms.ObservationConstants;
031import org.ametys.cms.contenttype.ContentTypesHelper;
032import org.ametys.cms.repository.Content;
033import org.ametys.core.observation.Event;
034import org.ametys.core.observation.Observer;
035import org.ametys.plugins.joboffer.JobOfferConstants;
036import org.ametys.plugins.repository.AmetysObjectResolver;
037import org.ametys.runtime.plugin.component.AbstractLogEnabled;
038
039
040/**
041 * Abstract observer for job offer
042 *
043 */
044public abstract class AbstractJobOfferObserver extends AbstractLogEnabled implements Observer, Serviceable, Contextualizable
045{
046    /** The key for persons in charge in transvient vars */
047    protected static final String REQUEST_ATTR_PERSON_IN_CHARGE = AbstractJobOfferObserver.class.getName() + "$personIncharge";
048    
049    /** The content type helper */
050    protected ContentTypesHelper _cTypeHelper;
051    /** The Ametys object resolver */
052    protected AmetysObjectResolver _resolver;
053
054    private Context _context;
055
056    public void service(ServiceManager smanager) throws ServiceException
057    {
058        _cTypeHelper = (ContentTypesHelper) smanager.lookup(ContentTypesHelper.ROLE);
059        _resolver = (AmetysObjectResolver) smanager.lookup(AmetysObjectResolver.ROLE);
060    }
061    
062    public void contextualize(Context context) throws ContextException
063    {
064        _context = context;
065    }
066
067    public boolean supports(Event event)
068    {
069        return _getSupportedEventIds().contains(event.getId()) && getJobOffer(event) != null;
070    }
071    
072    /**
073     * Get the current request
074     * @return the request
075     */
076    protected Request _getRequest()
077    {
078        return ContextHelper.getRequest(_context);
079    }
080    /**
081     * Get the id of supported events
082     * @return the id in a Set
083     */
084    protected abstract Set<String> _getSupportedEventIds();
085    
086    public int getPriority(Event event)
087    {
088        return MIN_PRIORITY;
089    }
090    
091    public void observe(Event event, Map<String, Object> transientVars) throws Exception
092    {
093        Content content = getJobOffer(event);
094        if (content != null)
095        {
096            _internalObserver(event, content, transientVars);
097        }
098    }
099    
100    /**
101     * Internal observer
102     * @param event the event
103     * @param content the job offer content. Cannot be null.
104     * @param transientVars The transient variables
105     * @throws Exception if an error occurred
106     */
107    protected abstract void _internalObserver(Event event, Content content, Map<String, Object> transientVars) throws Exception;
108    
109    /**
110     * Get the job offer concerned by the event
111     * @param event the event
112     * @return the job offer content or null
113     */
114    protected Content getJobOffer(Event event)
115    {
116        Map<String, Object> args = event.getArguments();
117        
118        if (args.containsKey(ObservationConstants.ARGS_CONTENT_ID))
119        {
120            String contentId = (String) args.get(ObservationConstants.ARGS_CONTENT_ID);
121            
122            Content content = _resolver.resolveById(contentId);
123            return _cTypeHelper.isInstanceOf(content, JobOfferConstants.JOB_OFFER_CONTENT_TYPE) ? content : null;
124        }
125        
126        return null;
127    }
128}