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.ves.message.generator.impl
22 import arrow.core.Option
24 import arrow.core.identity
25 import org.onap.dcae.collectors.veshv.utils.logging.Logger
26 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParameters
27 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParametersParser
28 import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType
29 import org.onap.dcae.collectors.veshv.ves.message.generator.api.ParsingError
30 import javax.json.JsonArray
33 * @author Jakub Dudycz <jakub.dudycz@nokia.com>
36 internal class MessageParametersParserImpl(
37 private val commonEventHeaderParser: CommonEventHeaderParser = CommonEventHeaderParser()
38 ) : MessageParametersParser {
40 override fun parse(request: JsonArray) =
43 .map { it.asJsonObject() }
44 .onEach { logger.info { "Parsing MessageParameters body: $it" } }
46 val commonEventHeader = commonEventHeaderParser
47 .parse(json.getJsonObject("commonEventHeader"))
48 .fold({ throw IllegalStateException("Invalid common header") }, ::identity)
49 val messageType = MessageType.valueOf(json.getString("messageType"))
50 val messagesAmount = json.getJsonNumber("messagesAmount")?.longValue()
51 ?: throw NullPointerException("\"messagesAmount\" could not be parsed.")
52 MessageParameters(commonEventHeader, messageType, messagesAmount)
54 }.toEither().mapLeft { ex ->
56 ex.message ?: "Unable to parse message parameters",
57 Option.fromNullable(ex))
61 private val logger = Logger(MessageParametersParserImpl::class)