Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | 1x 11x 11x 11x 11x 3x 3x 3x 4x 4x 5x 5x 5x 2x 1x 1x 1x | const Events = require('events')
/**
* Responsible for dispatching events from the payload stack
*/
class Dispatcher
{
/**
* @param {Logger} log
*/
static from(log)
{
const events = new Events
return new Dispatcher(log, events)
}
/**
* @param {Logger} log
* @param {events} events
*/
constructor(log, events)
{
this.log = log
this.events = events
}
/**
* @param {Context} context
* @param {Buffer} buffer
*/
dispatch(context, buffer)
{
this.log.info('data')
context.payloadStack.push(buffer)
this.loopThroughContextBufferToDispatchEachMessageOneByOne(context)
}
/**
* @protected
* @param {Context} context
*/
loopThroughContextBufferToDispatchEachMessageOneByOne(context)
{
try
{
while(context.payloadStack.stack.length)
{
const dto = context.payloadStack.shift()
this.log.info('trigger:', dto.event, dto.data)
this.events.emit(dto.event, context, dto.data)
}
}
catch(error)
{
this.handleError(error)
}
}
/**
* @protected
* @param {Error} error
*/
handleError(error)
{
switch(error.code)
{
case 'ERR_OUT_OF_RANGE':
case 'ERR_INCOMPLETE_MESSAGE': break
default: throw error
}
}
}
module.exports = Dispatcher
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