package uws.service.actions;
/*
* This file is part of UWSLibrary.
*
* UWSLibrary is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* UWSLibrary is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with UWSLibrary. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2012-2015 - UDS/Centre de Données astronomiques de Strasbourg (CDS),
* Astronomisches Rechen Institut (ARI)
*/
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import uws.UWSException;
import uws.UWSExceptionFactory;
import uws.job.JobList;
import uws.job.UWSJob;
import uws.job.user.JobOwner;
import uws.service.UWSService;
import uws.service.UWSUrl;
import uws.service.log.UWSLog.LogLevel;
/**
* <p>The "Add Job" action of a UWS.</p>
*
* <p><i><u>Note:</u> The corresponding name is {@link UWSAction#ADD_JOB}.</i></p>
*
* <p>This action creates a new job and adds it to the specified jobs list.
* The response of this action is a redirection to the new job resource (that is to say: a redirection to the job summary of the new job).</p>
*
* @author Grégory Mantelet (CDS;ARI)
* @version 4.1 (04/2015)
*/
public class AddJob extends UWSAction {
private static final long serialVersionUID = 1L;
public AddJob(UWSService u){
super(u);
}
/**
* @see UWSAction#ADD_JOB
* @see uws.service.actions.UWSAction#getName()
*/
@Override
public String getName(){
return ADD_JOB;
}
@Override
public String getDescription(){
return "Lets adding to the specified jobs list a job whose the parameters are given. (URL: {baseUWS_URL}/{jobListName}, Method: HTTP-POST, Parameters: job parameters)";
}
/**
* Checks whether:
* <ul>
* <li>a job list name is specified in the given UWS URL <i>(<u>note:</u> by default, the existence of the jobs list is not checked)</i>,</li>
* <li>the UWS URL does not make a reference to a job (so: no job ID),</li>
* <li>the HTTP method is HTTP-POST.</li>
* </ul>
* @see uws.service.actions.UWSAction#match(UWSUrl, JobOwner, HttpServletRequest)
*/
@Override
public boolean match(UWSUrl urlInterpreter, JobOwner user, HttpServletRequest request) throws UWSException{
return (urlInterpreter.hasJobList() && !urlInterpreter.hasJob() && request.getMethod().equalsIgnoreCase("post"));
}
/**
* Gets the specified jobs list <i>(throw an error if not found)</i>,
* creates a new job, adds it to the jobs list and makes a redirection to the summary of this new job.
*
* @see #getJobsList(UWSUrl)
* @see uws.service.UWSFactory#createJob(HttpServletRequest, JobOwner)
* @see JobList#addNewJob(UWSJob)
* @see UWSService#redirect(String, HttpServletRequest, JobOwner, String, HttpServletResponse)
*
* @see uws.service.actions.UWSAction#apply(UWSUrl, JobOwner, HttpServletRequest, HttpServletResponse)
*/
@Override
public boolean apply(UWSUrl urlInterpreter, JobOwner user, HttpServletRequest request, HttpServletResponse response) throws UWSException, IOException{
// Get the jobs list:
JobList jobsList = getJobsList(urlInterpreter);
// Forbids the job creation if the user has not the WRITE permission for the specified jobs list:
if (user != null && !user.hasWritePermission(jobsList))
throw new UWSException(UWSException.PERMISSION_DENIED, UWSExceptionFactory.writePermissionDenied(user, true, jobsList.getName()));
// Create the job:
UWSJob newJob;
try{
newJob = uws.getFactory().createJob(request, user);
}catch(UWSException ue){
getLogger().logUWS(LogLevel.ERROR, urlInterpreter, "ADD_JOB", "Can not create a new job!", ue);
throw ue;
}
// Add it to the jobs list:
if (jobsList.addNewJob(newJob) != null){
// Make a redirection to the added job:
uws.redirect(urlInterpreter.jobSummary(jobsList.getName(), newJob.getJobId()).getRequestURL(), request, user, getName(), response);
return true;
}else
throw new UWSException(UWSException.INTERNAL_SERVER_ERROR, "Unable to add the new job to the jobs list for an unknown reason. (ID of the new job = \"" + newJob.getJobId() + "\" ; ID already used = " + (jobsList.getJob(newJob.getJobId()) != null) + ")");
}
}