diff options
Diffstat (limited to 'sources/hv-collector-ves-message-generator/src/main')
9 files changed, 424 insertions, 0 deletions
diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageGenerator.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageGenerator.kt new file mode 100644 index 00000000..076c06be --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageGenerator.kt @@ -0,0 +1,36 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.api + +import org.onap.dcae.collectors.veshv.domain.WireFrameMessage +import reactor.core.publisher.Flux + +/** + * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com> + * @since June 2018 + */ +interface MessageGenerator { + fun createMessageFlux(messageParameters: List<MessageParameters>): Flux<WireFrameMessage> + + companion object { + const val FIXED_PAYLOAD_SIZE = 100 + } +} + diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageParameters.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageParameters.kt new file mode 100644 index 00000000..047d863c --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageParameters.kt @@ -0,0 +1,30 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.api + +import org.onap.ves.VesEventOuterClass.CommonEventHeader + +/** + * @author Jakub Dudycz <jakub.dudycz@nokia.com> + * @since June 2018 + */ +data class MessageParameters(val commonEventHeader: CommonEventHeader, + val messageType: MessageType, + val amount: Long = -1) diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageParametersParser.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageParametersParser.kt new file mode 100644 index 00000000..754fa31f --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageParametersParser.kt @@ -0,0 +1,37 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.api + +import arrow.core.Either +import arrow.core.Option +import org.onap.dcae.collectors.veshv.ves.message.generator.impl.MessageParametersParserImpl +import javax.json.JsonArray + +interface MessageParametersParser { + fun parse(request: JsonArray): Either<ParsingError, List<MessageParameters>> + + companion object { + val INSTANCE: MessageParametersParser by lazy { + MessageParametersParserImpl() + } + } +} + +data class ParsingError(val message: String, val cause: Option<Throwable>) diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageType.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageType.kt new file mode 100644 index 00000000..22c88252 --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/api/MessageType.kt @@ -0,0 +1,32 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.api + +/** + * @author Jakub Dudycz <jakub.dudycz@nokia.com> + * @since July 2018 + */ +enum class MessageType { + VALID, + TOO_BIG_PAYLOAD, + FIXED_PAYLOAD, + INVALID_WIRE_FRAME, + INVALID_GPB_DATA, +} diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/factory/MessageGeneratorFactory.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/factory/MessageGeneratorFactory.kt new file mode 100644 index 00000000..e2269c20 --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/factory/MessageGeneratorFactory.kt @@ -0,0 +1,33 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.factory + +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageGenerator +import org.onap.dcae.collectors.veshv.ves.message.generator.impl.MessageGeneratorImpl +import org.onap.dcae.collectors.veshv.ves.message.generator.impl.PayloadGenerator + +/** + * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com> + * @since October 2018 + */ +object MessageGeneratorFactory { + fun create(maxPayloadSizeBytes: Int): MessageGenerator = + MessageGeneratorImpl(PayloadGenerator(), maxPayloadSizeBytes) +} diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/CommonEventHeaderParser.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/CommonEventHeaderParser.kt new file mode 100644 index 00000000..909db5e4 --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/CommonEventHeaderParser.kt @@ -0,0 +1,50 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.impl + +import arrow.core.Option +import com.google.protobuf.util.JsonFormat +import org.onap.dcae.collectors.veshv.domain.headerRequiredFieldDescriptors +import org.onap.ves.VesEventOuterClass.CommonEventHeader +import javax.json.JsonObject + +/** + * @author Jakub Dudycz <jakub.dudycz@nokia.com> + * @since July 2018 + */ +class CommonEventHeaderParser { + fun parse(json: JsonObject): Option<CommonEventHeader> = + Option.fromNullable( + CommonEventHeader.newBuilder() + .apply { JsonFormat.parser().merge(json.toString(), this) } + .build() + .takeUnless { !isValid(it) } + ) + + + private fun isValid(header: CommonEventHeader): Boolean { + return allMandatoryFieldsArePresent(header) + } + + private fun allMandatoryFieldsArePresent(header: CommonEventHeader) = + headerRequiredFieldDescriptors + .all { fieldDescriptor -> header.hasField(fieldDescriptor) } + +} diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/MessageGeneratorImpl.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/MessageGeneratorImpl.kt new file mode 100644 index 00000000..fa39ed16 --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/MessageGeneratorImpl.kt @@ -0,0 +1,109 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.impl + +import com.google.protobuf.ByteString +import org.onap.dcae.collectors.veshv.domain.ByteData +import org.onap.dcae.collectors.veshv.domain.PayloadContentType +import org.onap.dcae.collectors.veshv.domain.WireFrameMessage +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageGenerator +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParameters +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType.FIXED_PAYLOAD +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType.INVALID_GPB_DATA +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType.INVALID_WIRE_FRAME +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType.TOO_BIG_PAYLOAD +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType.VALID +import org.onap.ves.VesEventOuterClass.CommonEventHeader +import org.onap.ves.VesEventOuterClass.VesEvent +import reactor.core.publisher.Flux +import reactor.core.publisher.Mono +import java.nio.charset.Charset + +/** + * @author Jakub Dudycz <jakub.dudycz@nokia.com> + * @since June 2018 + */ +class MessageGeneratorImpl internal constructor( + private val payloadGenerator: PayloadGenerator, + private val maxPayloadSizeBytes: Int +) : MessageGenerator { + + override fun createMessageFlux(messageParameters: List<MessageParameters>): Flux<WireFrameMessage> = Flux + .fromIterable(messageParameters) + .flatMap { createMessageFlux(it) } + + private fun createMessageFlux(parameters: MessageParameters): Flux<WireFrameMessage> = + Mono.fromCallable { createMessage(parameters.commonEventHeader, parameters.messageType) } + .let { + when { + parameters.amount < 0 -> + // repeat forever + it.repeat() + parameters.amount == 0L -> + // do not generate any message + Flux.empty() + else -> + // send original message and additional amount-1 messages + it.repeat(parameters.amount - 1) + } + } + + private fun createMessage(commonEventHeader: CommonEventHeader, messageType: MessageType): WireFrameMessage = + when (messageType) { + VALID -> + WireFrameMessage(vesEvent(commonEventHeader, payloadGenerator.generatePayload())) + TOO_BIG_PAYLOAD -> + WireFrameMessage(vesEvent(commonEventHeader, oversizedPayload())) + FIXED_PAYLOAD -> + WireFrameMessage(vesEvent(commonEventHeader, fixedPayload())) + INVALID_WIRE_FRAME -> { + val payload = ByteData(vesEvent(commonEventHeader, payloadGenerator.generatePayload())) + WireFrameMessage( + payload, + UNSUPPORTED_VERSION, + UNSUPPORTED_VERSION, + PayloadContentType.GOOGLE_PROTOCOL_BUFFER.hexValue, + payload.size()) + } + INVALID_GPB_DATA -> + WireFrameMessage("invalid vesEvent".toByteArray(Charset.defaultCharset())) + } + + private fun vesEvent(commonEventHeader: CommonEventHeader, eventFields: ByteString): ByteArray { + return createVesEvent(commonEventHeader, eventFields).toByteArray() + } + + private fun createVesEvent(commonEventHeader: CommonEventHeader, payload: ByteString): VesEvent = + VesEvent.newBuilder() + .setCommonEventHeader(commonEventHeader) + .setEventFields(payload) + .build() + + private fun oversizedPayload() = + payloadGenerator.generateRawPayload(maxPayloadSizeBytes + 1) + + private fun fixedPayload() = + payloadGenerator.generateRawPayload(MessageGenerator.FIXED_PAYLOAD_SIZE) + + companion object { + private const val UNSUPPORTED_VERSION: Short = 2 + } +} diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/MessageParametersParserImpl.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/MessageParametersParserImpl.kt new file mode 100644 index 00000000..6ef6d53a --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/MessageParametersParserImpl.kt @@ -0,0 +1,57 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.impl + +import arrow.core.Option +import arrow.core.Try +import arrow.core.identity +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParameters +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParametersParser +import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageType +import org.onap.dcae.collectors.veshv.ves.message.generator.api.ParsingError +import javax.json.JsonArray + +/** + * @author Jakub Dudycz <jakub.dudycz@nokia.com> + * @since July 2018 + */ +internal class MessageParametersParserImpl( + private val commonEventHeaderParser: CommonEventHeaderParser = CommonEventHeaderParser() +) : MessageParametersParser { + + override fun parse(request: JsonArray) = + Try { + request + .map { it.asJsonObject() } + .map { json -> + val commonEventHeader = commonEventHeaderParser + .parse(json.getJsonObject("commonEventHeader")) + .fold({ throw IllegalStateException("Invalid common header") }, ::identity) + val messageType = MessageType.valueOf(json.getString("messageType")) + val messagesAmount = json.getJsonNumber("messagesAmount")?.longValue() + ?: throw NullPointerException("\"messagesAmount\" could not be parsed.") + MessageParameters(commonEventHeader, messageType, messagesAmount) + } + }.toEither().mapLeft { ex -> + ParsingError( + ex.message ?: "Unable to parse message parameters", + Option.fromNullable(ex)) + } +} diff --git a/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/PayloadGenerator.kt b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/PayloadGenerator.kt new file mode 100644 index 00000000..545e237c --- /dev/null +++ b/sources/hv-collector-ves-message-generator/src/main/kotlin/org/onap/dcae/collectors/veshv/ves/message/generator/impl/PayloadGenerator.kt @@ -0,0 +1,40 @@ +/* + * ============LICENSE_START======================================================= + * dcaegen2-collectors-veshv + * ================================================================================ + * Copyright (C) 2018 NOKIA + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.collectors.veshv.ves.message.generator.impl + +import com.google.protobuf.ByteString +import java.util.* +import kotlin.streams.asSequence + +internal class PayloadGenerator { + + private val randomGenerator = Random() + + fun generateRawPayload(size: Int): ByteString = + ByteString.copyFrom(ByteArray(size)) + + fun generatePayload(numOfCountMeasurements: Long = 2): ByteString = + ByteString.copyFrom( + randomGenerator.ints(numOfCountMeasurements, 0, 256) + .asSequence() + .toString() + .toByteArray() + ) +} |