public ApnsServiceBuilder asBatched(int waitTimeInSec, int maxWaitTimeInSec, ScheduledExecutorService batchThreadPoolExecutor) {
        this.isBatched = true;
        this.batchWaitTimeInSec = waitTimeInSec;
        this.batchMaxWaitTimeInSec = maxWaitTimeInSec;
        this.batchThreadPoolExecutor = batchThreadPoolExecutor;
        return this;
    }
Construct service which will process notification requests in batch.
After each request batch will wait <code>waitTimeInSec</code> for more request to come
before executing but not more than <code>maxWaitTimeInSec</code>

Each batch creates new connection and close it after finished.
In case reconnect policy is specified it will be applied by batch processing. 
E.g.: {@link ReconnectPolicy.Provided#EVERY_HALF_HOUR} will reconnect the connection in case batch is running for more than half an hour

Note: It is not recommended to use pooled connection

@param waitTimeInSec
           time to wait for more notification request before executing
           batch
@param maxWaitTimeInSec
           maximum wait time for batch before executing
@param batchThreadPoolExecutor
           executor for batched processing (may be null)
src/main/java/com/notnoop/apns/ApnsServiceBuilder.java