2 * ============LICENSE_START=======================================================
3 * dcaegen2-collectors-veshv
4 * ================================================================================
5 * Copyright (C) 2018 NOKIA
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.dcae.collectors.veshv.simulators.dcaeapp.impl
22 import arrow.core.getOrElse
23 import arrow.effects.IO
24 import arrow.effects.fix
25 import arrow.effects.instances.io.monadError.monadError
26 import arrow.instances.option.foldable.fold
27 import arrow.typeclasses.bindingCatch
28 import org.onap.dcae.collectors.veshv.domain.ByteData
29 import org.onap.dcae.collectors.veshv.domain.WireFrameMessage
30 import org.onap.dcae.collectors.veshv.utils.arrow.asIo
31 import org.onap.dcae.collectors.veshv.utils.logging.Logger
32 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageGenerator
33 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParameters
34 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParametersParser
35 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType
36 import org.onap.ves.VesEventOuterClass
37 import java.io.InputStream
38 import javax.json.Json
40 class MessageStreamValidation(
41 private val messageGenerator: MessageGenerator,
42 private val messageParametersParser: MessageParametersParser = MessageParametersParser.INSTANCE) {
44 fun validate(jsonDescription: InputStream, consumedMessages: List<ByteArray>): IO<Boolean> =
45 IO.monadError().bindingCatch {
46 val messageParams = parseMessageParams(jsonDescription)
47 logger.debug { "Parsed message parameters: $messageParams" }
48 val expectedEvents = generateEvents(messageParams).bind()
49 val actualEvents = decodeConsumedEvents(consumedMessages)
50 if (shouldValidatePayloads(messageParams)) {
51 expectedEvents == actualEvents
53 validateHeaders(actualEvents, expectedEvents)
57 private fun parseMessageParams(input: InputStream): List<MessageParameters> {
58 val expectations = Json.createReader(input).readArray()
59 val messageParams = messageParametersParser.parse(expectations)
61 return messageParams.fold(
63 logger.warn { "Error while parsing message parameters: ${it::class.qualifiedName} : ${it.message}" }
64 logger.debug { "Detailed stack trace: ${it}" }
65 throw IllegalArgumentException("Parsing error: " + it.message)
69 val message = "Message param list cannot be empty"
71 throw IllegalArgumentException(message)
78 private fun shouldValidatePayloads(parameters: List<MessageParameters>) =
79 parameters.all { it.messageType == MessageType.FIXED_PAYLOAD }
81 private fun validateHeaders(actual: List<VesEventOuterClass.VesEvent>,
82 expected: List<VesEventOuterClass.VesEvent>): Boolean {
83 val consumedHeaders = actual.map { it.commonEventHeader }
84 val generatedHeaders = expected.map { it.commonEventHeader }
85 return generatedHeaders == consumedHeaders
88 private fun generateEvents(parameters: List<MessageParameters>): IO<List<VesEventOuterClass.VesEvent>> =
89 messageGenerator.createMessageFlux(parameters)
90 .map(WireFrameMessage::payload)
91 .map(ByteData::unsafeAsArray)
92 .map(VesEventOuterClass.VesEvent::parseFrom)
96 private fun decodeConsumedEvents(consumedMessages: List<ByteArray>) =
97 consumedMessages.map(VesEventOuterClass.VesEvent::parseFrom)
100 private val logger = Logger(MessageStreamValidation::class)