first commit

batch/index.js

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+'use strict';
+
+var JobRunner = require('./job_runner');
+var QueryRunner = require('./query_runner');
+var JobCanceller = require('./job_canceller');
+var JobSubscriber = require('./pubsub/job-subscriber');
+var UserDatabaseMetadataService = require('./user_database_metadata_service');
+var JobPublisher = require('./pubsub/job-publisher');
+var JobQueue = require('./job_queue');
+var JobBackend = require('./job_backend');
+var JobService = require('./job_service');
+var BatchLogger = require('./batch-logger');
+var Batch = require('./batch');
+
+module.exports = function batchFactory (metadataBackend, redisPool, name, statsdClient, loggerPath) {
+    var userDatabaseMetadataService = new UserDatabaseMetadataService(metadataBackend);
+
+    var jobSubscriber = new JobSubscriber(redisPool);
+    var jobPublisher = new JobPublisher(redisPool);
+
+    var jobQueue =  new JobQueue(metadataBackend, jobPublisher);
+    var jobBackend = new JobBackend(metadataBackend, jobQueue);
+    var queryRunner = new QueryRunner(userDatabaseMetadataService);
+    var jobCanceller = new JobCanceller();
+    var jobService = new JobService(jobBackend, jobCanceller);
+    var jobRunner = new JobRunner(jobService, jobQueue, queryRunner, metadataBackend, statsdClient);
+    var logger = new BatchLogger(loggerPath, 'batch-queries');
+
+    return new Batch(
+        name,
+        userDatabaseMetadataService,
+        jobSubscriber,
+        jobQueue,
+        jobRunner,
+        jobService,
+        redisPool,
+        logger
+    );
+};