executeJob: function(job, callback) {
// Parse job data
var jobData;
try {
jobData = JSON.parse(job.body);
} catch (err) {
_.error("%s corrupt job: %s %j", this.className, job.id, job.body, {});
return this.deleteJob(job, callback);
}
// Handle job
var Klass = this.get('jobs')[jobData.name];
if (!Klass) {
_.error("%s corrupt job: %s %j", this.className, job.id, job.body, {});
return this.deleteJob(job, callback);
}
var klass = new Klass();
klass.perform(jobData.data, function(err) {
if (err) {
_.error("%s process job: %s (%s) attempt: %d error: %s", this.className, jobData.name, job.id, job.reserved_count, err.message);
return this.releaseJob(job, callback);
}
_.info("%s process job: %s (%s) attempt: %d", this.className, jobData.name, job.id, job.reserved_count);
this.deleteJob(job, function() {
return callback();
});
}.bind(this));
},
this.queue.del(job.id, function(err, body) {
if (err) {
_.error("%s delete job: %s %s %j", that.className, job.id, err.message, body, {});
}
_.info("%s delete job: %s %j", that.className, job.id, body, {});
return callback();
});
this.queue.msg_release(job.id, options, function(err, body) {
if (err) {
_.error("%s release job: %s %s %j", that.className, job.id, err.message, body, {});
}
_.info("%s release job: %s with delay: %dms", that.className, job.id, options.delay);
return callback();
});
klass.perform(jobData.data, function(err) {
if (err) {
_.error("%s process job: %s (%s) attempt: %d error: %s", this.className, jobData.name, job.id, job.reserved_count, err.message);
return this.releaseJob(job, callback);
}
_.info("%s process job: %s (%s) attempt: %d", this.className, jobData.name, job.id, job.reserved_count);
this.deleteJob(job, function() {
return callback();
});
}.bind(this));
this.queue.get(options, function(err, job) {
// Execute job, then immediately try to get another
if (job) {
process.nextTick(function() {
this.executeJob(job, function() {
this.processJob(options);
}.bind(this));
}.bind(this));
return;
}
// Error getting job
if (err) {
_.error("Error getting job from queue, error_message: %s", err.message);
}
// No job to process, wait 5s
setTimeout(function() {
this.processJob(options);
}.bind(this), 5000);
}.bind(this));