CartoDB-SQL-API/batch/job_service.js
2016-10-28 15:19:49 +02:00

137 lines
3.1 KiB
JavaScript

'use strict';
var debug = require('./util/debug')('job-service');
var JobFactory = require('./models/job_factory');
var jobStatus = require('./job_status');
function JobService(jobBackend, jobCanceller) {
this.jobBackend = jobBackend;
this.jobCanceller = jobCanceller;
}
module.exports = JobService;
JobService.prototype.get = function (job_id, callback) {
this.jobBackend.get(job_id, function (err, data) {
if (err) {
return callback(err);
}
var job;
try {
job = JobFactory.create(data);
} catch (err) {
return callback(err);
}
callback(null, job);
});
};
JobService.prototype.create = function (data, callback) {
try {
var job = JobFactory.create(data);
job.validate();
this.jobBackend.create(job.data, function (err) {
if (err) {
return callback(err);
}
callback(null, job);
});
} catch (err) {
return callback(err);
}
};
JobService.prototype.save = function (job, callback) {
var self = this;
try {
job.validate();
} catch (err) {
return callback(err);
}
self.jobBackend.update(job.data, function (err, data) {
if (err) {
return callback(err);
}
try {
job = JobFactory.create(data);
} catch (err) {
return callback(err);
}
callback(null, job);
});
};
JobService.prototype.cancel = function (job_id, callback) {
var self = this;
self.get(job_id, function (err, job) {
if (err) {
return callback(err);
}
var isPending = job.isPending();
try {
job.setStatus(jobStatus.CANCELLED);
} catch (err) {
return callback(err);
}
if (isPending) {
return self.save(job, callback);
}
self.jobCanceller.cancel(job, function (err) {
if (err) {
return callback(err);
}
self.save(job, callback);
});
});
};
JobService.prototype.drain = function (job_id, callback) {
var self = this;
self.get(job_id, function (err, job) {
if (err) {
return callback(err);
}
self.jobCanceller.cancel(job, function (err) {
if (err) {
debug('There was an error while draining job %s, %s ', job_id, err);
return callback(err);
}
try {
job.setStatus(jobStatus.PENDING);
} catch (err) {
return callback(err);
}
self.jobBackend.update(job.data, callback);
});
});
};
JobService.prototype.addWorkInProgressJob = function (user, jobId, callback) {
this.jobBackend.addWorkInProgressJob(user, jobId, callback);
};
JobService.prototype.clearWorkInProgressJob = function (user, jobId, callback) {
this.jobBackend.clearWorkInProgressJob(user, jobId, callback);
};
JobService.prototype.listWorkInProgressJobs = function (callback) {
this.jobBackend.listWorkInProgressJobs(callback);
};