Extract HV-VES configuration module

To avoid cyclic dependency between "modules trio"
configuration-core-ssl some classes from core.model were also extracted.

Change-Id: Ie11029ae3500964f67f4d72279ddd68cdb2a1f0c
Issue-ID: DCAEGEN2-1332
Signed-off-by: Filip Krzywka <filip.krzywka@nokia.com>

17 files changed, 1098 insertions, 0 deletions

diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/ConfigurationModule.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/ConfigurationModule.kt
new file mode 100644
index 00000000..874cc5b0
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/ConfigurationModule.kt
@@ -0,0 +1,31 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.api
+
+import org.onap.dcae.collectors.veshv.config.api.model.ServerConfiguration
+import org.onap.dcae.collectors.veshv.config.impl.ArgVesHvConfiguration
+import reactor.core.publisher.Flux
+
+class ConfigurationModule {
+    fun createConfigurationFromCommandLine(args: Array<String>) =
+            ArgVesHvConfiguration().parse(args)
+
+    fun hvVesConfigurationUpdates(): Flux<ServerConfiguration> = Flux.never<ServerConfiguration>()
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/CollectorConfiguration.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/CollectorConfiguration.kt
new file mode 100644
index 00000000..7999451e
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/CollectorConfiguration.kt
@@ -0,0 +1,26 @@
+/*
+ * ============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.config.api.model
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since May 2018
+ */
+data class CollectorConfiguration(val routing: Routing)
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/ConfigurationProviderParams.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/ConfigurationProviderParams.kt
new file mode 100644
index 00000000..847279d9
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/ConfigurationProviderParams.kt
@@ -0,0 +1,29 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018-2019 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.config.api.model
+
+import java.time.Duration
+
+/**
+ * @author Jakub Dudycz <jakub.dudycz@nokia.com>
+ * @since July 2018
+ */
+data class ConfigurationProviderParams(val firstRequestDelay: Duration,
+                                       val requestInterval: Duration)
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/KafkaConfiguration.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/KafkaConfiguration.kt
new file mode 100644
index 00000000..f9dff203
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/KafkaConfiguration.kt
@@ -0,0 +1,26 @@
+/*
+ * ============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.config.api.model
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since December 2018
+ */
+data class KafkaConfiguration(val bootstrapServers: String, val maximalRequestSizeBytes: Int)
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/ServerConfiguration.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/ServerConfiguration.kt
new file mode 100644
index 00000000..8fbc649b
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/ServerConfiguration.kt
@@ -0,0 +1,42 @@
+/*
+ * ============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.config.api.model
+
+import org.onap.dcae.collectors.veshv.ssl.boundary.SecurityConfiguration
+import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
+import java.net.InetSocketAddress
+import java.time.Duration
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since May 2018
+ */
+data class ServerConfiguration(
+        val serverListenAddress: InetSocketAddress,
+        val kafkaConfiguration: KafkaConfiguration,
+        val configurationProviderParams: ConfigurationProviderParams,
+        val securityConfiguration: SecurityConfiguration,
+        val idleTimeout: Duration,
+        val healthCheckApiListenAddress: InetSocketAddress,
+        val maximumPayloadSizeBytes: Int,
+        val logLevel: LogLevel,
+        val dummyMode: Boolean = false
+)
+
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/routing.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/routing.kt
new file mode 100644
index 00000000..847f35ad
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/api/model/routing.kt
@@ -0,0 +1,85 @@
+/*
+ * ============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.config.api.model
+
+import arrow.core.Option
+import org.onap.dcae.collectors.veshv.domain.RoutedMessage
+import org.onap.dcae.collectors.veshv.domain.VesMessage
+import org.onap.ves.VesEventOuterClass.CommonEventHeader
+
+data class Routing(val routes: List<Route>) {
+
+    fun routeFor(commonHeader: CommonEventHeader): Option<Route> =
+            Option.fromNullable(routes.find { it.applies(commonHeader) })
+}
+
+data class Route(val domain: String, val targetTopic: String, val partitioning: (CommonEventHeader) -> Int = {0}) {
+
+    fun applies(commonHeader: CommonEventHeader) = commonHeader.domain == domain
+
+    operator fun invoke(message: VesMessage): RoutedMessage =
+            RoutedMessage(targetTopic, partitioning(message.header), message)
+}
+
+
+/*
+Configuration DSL
+ */
+
+fun routing(init: RoutingBuilder.() -> Unit): RoutingBuilder {
+    val conf = RoutingBuilder()
+    conf.init()
+    return conf
+}
+
+class RoutingBuilder {
+    private val routes: MutableList<RouteBuilder> = mutableListOf()
+
+    fun defineRoute(init: RouteBuilder.() -> Unit): RouteBuilder {
+        val rule = RouteBuilder()
+        rule.init()
+        routes.add(rule)
+        return rule
+    }
+
+    fun build() = Routing(routes.map { it.build() }.toList())
+}
+
+class RouteBuilder {
+
+    private lateinit var domain: String
+    private lateinit var targetTopic: String
+    private lateinit var partitioning: (CommonEventHeader) -> Int
+
+    fun fromDomain(domain: String) : RouteBuilder = apply {
+        this.domain = domain
+    }
+
+    fun toTopic(targetTopic: String) : RouteBuilder = apply {
+        this.targetTopic = targetTopic
+    }
+
+    fun withFixedPartitioning(num: Int = 0) : RouteBuilder = apply {
+        partitioning = { num }
+    }
+
+    fun build() = Route(domain, targetTopic, partitioning)
+
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/ArgVesHvConfiguration.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/ArgVesHvConfiguration.kt
new file mode 100644
index 00000000..08346d30
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/ArgVesHvConfiguration.kt
@@ -0,0 +1,151 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018-2019 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.config.impl
+
+import arrow.core.Option
+import arrow.core.fix
+import arrow.core.getOrElse
+import arrow.instances.option.monad.monad
+import arrow.typeclasses.binding
+import org.apache.commons.cli.CommandLine
+import org.apache.commons.cli.DefaultParser
+import org.onap.dcae.collectors.veshv.commandline.ArgBasedConfiguration
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.CONFIGURATION_REQUEST_INTERVAL
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.CONFIGURATION_FIRST_REQUEST_DELAY
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.DUMMY_MODE
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.HEALTH_CHECK_API_PORT
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.IDLE_TIMEOUT_SEC
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.KAFKA_SERVERS
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.KEY_STORE_FILE
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.KEY_STORE_PASSWORD
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.LISTEN_PORT
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.LOG_LEVEL
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.MAXIMUM_PAYLOAD_SIZE_BYTES
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.SSL_DISABLE
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.TRUST_STORE_FILE
+import org.onap.dcae.collectors.veshv.commandline.CommandLineOption.TRUST_STORE_PASSWORD
+import org.onap.dcae.collectors.veshv.commandline.hasOption
+import org.onap.dcae.collectors.veshv.commandline.intValue
+import org.onap.dcae.collectors.veshv.commandline.longValue
+import org.onap.dcae.collectors.veshv.commandline.stringValue
+import org.onap.dcae.collectors.veshv.config.api.model.ConfigurationProviderParams
+import org.onap.dcae.collectors.veshv.config.api.model.KafkaConfiguration
+import org.onap.dcae.collectors.veshv.config.api.model.ServerConfiguration
+import org.onap.dcae.collectors.veshv.domain.WireFrameMessage
+import org.onap.dcae.collectors.veshv.ssl.boundary.createSecurityConfiguration
+import org.onap.dcae.collectors.veshv.utils.arrow.doOnFailure
+import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
+import org.onap.dcae.collectors.veshv.utils.logging.Logger
+import java.net.InetSocketAddress
+import java.time.Duration
+
+
+internal class ArgVesHvConfiguration : ArgBasedConfiguration<ServerConfiguration>(DefaultParser()) {
+    override val cmdLineOptionsList = listOf(
+            KAFKA_SERVERS,
+            HEALTH_CHECK_API_PORT,
+            LISTEN_PORT,
+            CONFIGURATION_FIRST_REQUEST_DELAY,
+            CONFIGURATION_REQUEST_INTERVAL,
+            SSL_DISABLE,
+            KEY_STORE_FILE,
+            KEY_STORE_PASSWORD,
+            TRUST_STORE_FILE,
+            TRUST_STORE_PASSWORD,
+            IDLE_TIMEOUT_SEC,
+            MAXIMUM_PAYLOAD_SIZE_BYTES,
+            DUMMY_MODE,
+            LOG_LEVEL
+    )
+
+    override fun getConfiguration(cmdLine: CommandLine): Option<ServerConfiguration> =
+            Option.monad().binding {
+                val healthCheckApiPort = cmdLine.intValue(
+                        HEALTH_CHECK_API_PORT,
+                        DefaultValues.HEALTH_CHECK_API_PORT
+                )
+                val kafkaServers = cmdLine.stringValue(KAFKA_SERVERS).bind()
+                val listenPort = cmdLine.intValue(LISTEN_PORT).bind()
+                val idleTimeoutSec = cmdLine.longValue(IDLE_TIMEOUT_SEC, DefaultValues.IDLE_TIMEOUT_SEC)
+                val maxPayloadSizeBytes = cmdLine.intValue(
+                        MAXIMUM_PAYLOAD_SIZE_BYTES,
+                        DefaultValues.MAX_PAYLOAD_SIZE_BYTES
+                )
+                val dummyMode = cmdLine.hasOption(DUMMY_MODE)
+                val security = createSecurityConfiguration(cmdLine)
+                        .doOnFailure { ex ->
+                            logger.withError { log("Could not read security keys", ex) }
+                        }
+                        .toOption()
+                        .bind()
+                val logLevel = cmdLine.stringValue(LOG_LEVEL, DefaultValues.LOG_LEVEL)
+                val configurationProviderParams = createConfigurationProviderParams(cmdLine).bind()
+                ServerConfiguration(
+                        serverListenAddress = InetSocketAddress(listenPort),
+                        kafkaConfiguration = KafkaConfiguration(kafkaServers, maxPayloadSizeBytes),
+                        healthCheckApiListenAddress = InetSocketAddress(healthCheckApiPort),
+                        configurationProviderParams = configurationProviderParams,
+                        securityConfiguration = security,
+                        idleTimeout = Duration.ofSeconds(idleTimeoutSec),
+                        maximumPayloadSizeBytes = maxPayloadSizeBytes,
+                        dummyMode = dummyMode,
+                        logLevel = determineLogLevel(logLevel)
+                )
+            }.fix()
+
+    private fun createConfigurationProviderParams(cmdLine: CommandLine): Option<ConfigurationProviderParams> =
+            Option.monad().binding {
+                val firstRequestDelay = cmdLine.longValue(
+                        CONFIGURATION_FIRST_REQUEST_DELAY,
+                        DefaultValues.CONFIGURATION_FIRST_REQUEST_DELAY
+                )
+                val requestInterval = cmdLine.longValue(
+                        CONFIGURATION_REQUEST_INTERVAL,
+                        DefaultValues.CONFIGURATION_REQUEST_INTERVAL
+                )
+                ConfigurationProviderParams(
+                        Duration.ofSeconds(firstRequestDelay),
+                        Duration.ofSeconds(requestInterval)
+                )
+            }.fix()
+
+    private fun determineLogLevel(logLevel: String) = LogLevel.optionFromString(logLevel)
+            .getOrElse {
+                logger.warn {
+                    "Failed to parse $logLevel as $LOG_LEVEL command line. " +
+                            "Using default log level (${DefaultValues.LOG_LEVEL})"
+                }
+                LogLevel.valueOf(DefaultValues.LOG_LEVEL)
+            }
+
+
+    internal object DefaultValues {
+        const val HEALTH_CHECK_API_PORT = 6060
+        const val CONFIGURATION_FIRST_REQUEST_DELAY = 10L
+        const val CONFIGURATION_REQUEST_INTERVAL = 5L
+        const val IDLE_TIMEOUT_SEC = 60L
+        const val MAX_PAYLOAD_SIZE_BYTES = WireFrameMessage.DEFAULT_MAX_PAYLOAD_SIZE_BYTES
+        val LOG_LEVEL = LogLevel.INFO.name
+    }
+
+    companion object {
+        private val logger = Logger(ArgVesHvConfiguration::class)
+    }
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/FileConfigurationReader.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/FileConfigurationReader.kt
new file mode 100644
index 00000000..452b9215
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/FileConfigurationReader.kt
@@ -0,0 +1,50 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl
+
+import arrow.core.Option
+import com.google.gson.GsonBuilder
+import org.onap.dcae.collectors.veshv.config.api.model.Route
+import org.onap.dcae.collectors.veshv.config.api.model.Routing
+import org.onap.dcae.collectors.veshv.config.impl.gsonadapters.AddressAdapter
+import org.onap.dcae.collectors.veshv.config.impl.gsonadapters.OptionAdapter
+import org.onap.dcae.collectors.veshv.config.impl.gsonadapters.RouteAdapter
+import org.onap.dcae.collectors.veshv.config.impl.gsonadapters.RoutingAdapter
+import org.onap.dcae.collectors.veshv.config.impl.gsonadapters.SecurityKeysAdapter
+import org.onap.dcaegen2.services.sdk.security.ssl.SecurityKeys
+import java.io.Reader
+import java.net.InetSocketAddress
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since February 2019
+ */
+internal class FileConfigurationReader {
+    private val gson = GsonBuilder()
+            .registerTypeAdapter(InetSocketAddress::class.java, AddressAdapter())
+            .registerTypeAdapter(Route::class.java, RouteAdapter())
+            .registerTypeAdapter(Routing::class.java, RoutingAdapter())
+            .registerTypeAdapter(Option::class.java, OptionAdapter())
+            .registerTypeAdapter(SecurityKeys::class.java, SecurityKeysAdapter())
+            .create()
+
+    fun loadConfig(input: Reader): PartialConfiguration =
+            gson.fromJson(input, PartialConfiguration::class.java)
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/PartialConfiguration.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/PartialConfiguration.kt
new file mode 100644
index 00000000..8d9cca73
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/PartialConfiguration.kt
@@ -0,0 +1,60 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl
+
+import arrow.core.Option
+import org.onap.dcae.collectors.veshv.config.api.model.Routing
+import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
+import org.onap.dcaegen2.services.sdk.security.ssl.SecurityKeys
+import java.net.InetSocketAddress
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since February 2019
+ */
+internal data class PartialConfiguration(
+        val server : Option<PartialServerConfig>,
+        val cbs : Option<PartialCbsConfig>,
+        val security : Option<PartialSecurityConfig>,
+        val kafka : Option<PartialKafkaConfig>,
+        val logLevel : Option<LogLevel>
+)
+
+internal data class PartialServerConfig(
+        val healthCheckApiPort : Option<Int>,
+        val listenPort : Option<Int>,
+        val idleTimeoutSec : Option<Int>,
+        val maximumPayloadSizeBytes : Option<Int>,
+        val dummyMode : Option<Boolean>
+)
+
+internal data class PartialCbsConfig(
+        val firstRequestDelaySec : Option<Int>,
+        val requestIntervalSec : Option<Int>
+)
+
+internal data class PartialSecurityConfig(
+        val sslDisable : Option<Boolean>,
+        val keys : Option<SecurityKeys>)
+
+internal data class PartialKafkaConfig(
+    val kafkaServers : Option<Array<InetSocketAddress>>,
+    val routing : Option<Routing>
+)
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/AddressAdapter.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/AddressAdapter.kt
new file mode 100644
index 00000000..6d20da4a
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/AddressAdapter.kt
@@ -0,0 +1,50 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl.gsonadapters
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import java.lang.reflect.Type
+import java.net.InetSocketAddress
+
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since February 2019
+ */
+internal class AddressAdapter : JsonDeserializer<InetSocketAddress> {
+    override fun deserialize(
+            json: JsonElement,
+            typeOfT: Type,
+            context: JsonDeserializationContext?): InetSocketAddress
+        {
+            val portStart = json.asString.lastIndexOf(":")
+            if (portStart > 0) {
+                val address = json.asString.substring(0, portStart)
+                val port = json.asString.substring(portStart + 1)
+                return InetSocketAddress(address, port.toInt())
+            } else throw InvalidAddressException("Cannot parse '" + json.asString + "' to address")
+        }
+
+    class InvalidAddressException(reason:String) : RuntimeException(reason)
+}
+
+
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/OptionAdapter.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/OptionAdapter.kt
new file mode 100644
index 00000000..f7fdc3c3
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/OptionAdapter.kt
@@ -0,0 +1,40 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl.gsonadapters
+
+import arrow.core.Option
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import java.lang.reflect.ParameterizedType
+import java.lang.reflect.Type
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since March 2019
+ */
+internal class OptionAdapter : JsonDeserializer<Option<Any>> {
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext): Option<Any> {
+        val parametrizedType = typeOfT as ParameterizedType
+        val typeParameter = parametrizedType.actualTypeArguments.first()
+        return Option.fromNullable(context.deserialize<Any>(json, typeParameter))
+    }
+
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/RouteAdapter.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/RouteAdapter.kt
new file mode 100644
index 00000000..25cb8861
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/RouteAdapter.kt
@@ -0,0 +1,43 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl.gsonadapters
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import org.onap.dcae.collectors.veshv.config.api.model.Route
+import org.onap.dcae.collectors.veshv.config.api.model.RouteBuilder
+import java.lang.reflect.Type
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since March 2019
+ */
+internal class RouteAdapter : JsonDeserializer<Route> {
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext?): Route {
+        val jobj = json.asJsonObject
+        return RouteBuilder()
+                .fromDomain(jobj["fromDomain"].asString)
+                .toTopic(jobj["toTopic"].asString)
+                .withFixedPartitioning()
+                .build()
+    }
+
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/RoutingAdapter.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/RoutingAdapter.kt
new file mode 100644
index 00000000..4b299098
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/RoutingAdapter.kt
@@ -0,0 +1,40 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl.gsonadapters
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.reflect.TypeToken
+import org.onap.dcae.collectors.veshv.config.api.model.Route
+import org.onap.dcae.collectors.veshv.config.api.model.Routing
+import java.lang.reflect.Type
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since March 2019
+ */
+internal class RoutingAdapter : JsonDeserializer<Routing> {
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext): Routing {
+        val parametrizedType = TypeToken.getParameterized(List::class.java, Route::class.java).type
+        return Routing(context.deserialize<List<Route>>(json, parametrizedType))
+    }
+
+}
diff --git a/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/SecurityKeysAdapter.kt b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/SecurityKeysAdapter.kt
new file mode 100644
index 00000000..f9c0b4db
--- /dev/null
+++ b/sources/hv-collector-configuration/src/main/kotlin/org/onap/dcae/collectors/veshv/config/impl/gsonadapters/SecurityKeysAdapter.kt
@@ -0,0 +1,51 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.impl.gsonadapters
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import org.onap.dcaegen2.services.sdk.security.ssl.ImmutableSecurityKeys
+import org.onap.dcaegen2.services.sdk.security.ssl.ImmutableSecurityKeysStore
+import org.onap.dcaegen2.services.sdk.security.ssl.Passwords
+import org.onap.dcaegen2.services.sdk.security.ssl.SecurityKeys
+import java.io.File
+import java.lang.reflect.Type
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since March 2019
+ */
+internal class SecurityKeysAdapter : JsonDeserializer<SecurityKeys> {
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext?): SecurityKeys {
+        val obj = json.asJsonObject
+        return ImmutableSecurityKeys.builder()
+                .keyStore(ImmutableSecurityKeysStore.of(
+                        File(obj["keyStoreFile"].asString).toPath()))
+                .keyStorePassword(
+                        Passwords.fromString(obj["keyStorePassword"].asString))
+                .trustStore(ImmutableSecurityKeysStore.of(
+                        File(obj["trustStoreFile"].asString).toPath()))
+                .trustStorePassword(
+                        Passwords.fromString(obj["trustStorePassword"].asString))
+                .build()
+    }
+
+}
diff --git a/sources/hv-collector-configuration/src/test/kotlin/org/onap/dcae/collectors/veshv/config/api/ArgVesHvConfigurationTest.kt b/sources/hv-collector-configuration/src/test/kotlin/org/onap/dcae/collectors/veshv/config/api/ArgVesHvConfigurationTest.kt
new file mode 100644
index 00000000..0f8d8d0e
--- /dev/null
+++ b/sources/hv-collector-configuration/src/test/kotlin/org/onap/dcae/collectors/veshv/config/api/ArgVesHvConfigurationTest.kt
@@ -0,0 +1,192 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018-2019 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.config.api
+
+import org.assertj.core.api.Assertions.assertThat
+import org.jetbrains.spek.api.Spek
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.given
+import org.jetbrains.spek.api.dsl.it
+import org.jetbrains.spek.api.dsl.on
+import org.onap.dcae.collectors.veshv.commandline.WrongArgumentError
+import org.onap.dcae.collectors.veshv.config.api.model.ServerConfiguration
+import org.onap.dcae.collectors.veshv.config.impl.ArgVesHvConfiguration
+import org.onap.dcae.collectors.veshv.tests.utils.parseExpectingFailure
+import org.onap.dcae.collectors.veshv.tests.utils.parseExpectingSuccess
+import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
+import org.onap.dcaegen2.services.sdk.security.ssl.SecurityKeys
+import java.time.Duration
+import kotlin.test.assertNotNull
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since May 2018
+ */
+object ArgVesHvConfigurationTest : Spek({
+    lateinit var cut: ArgVesHvConfiguration
+    val kafkaBootstrapServers = "dmaap-mr-wro:6666,dmaap-mr-gda:6666"
+    val healthCheckApiPort = "6070"
+    val firstRequestDelay = "10"
+    val requestInterval = "5"
+    val listenPort = "6969"
+    val keyStorePassword = "kspass"
+    val trustStorePassword = "tspass"
+    val logLevel = LogLevel.DEBUG.name
+
+    beforeEachTest {
+        cut = ArgVesHvConfiguration()
+    }
+
+    describe("parsing arguments") {
+        given("all parameters are present in the long form") {
+            lateinit var result: ServerConfiguration
+
+            beforeEachTest {
+                result = cut.parseExpectingSuccess(
+                        "--kafka-bootstrap-servers", kafkaBootstrapServers,
+                        "--health-check-api-port", healthCheckApiPort,
+                        "--listen-port", listenPort,
+                        "--first-request-delay", firstRequestDelay,
+                        "--request-interval", requestInterval,
+                        "--key-store", "/tmp/keys.p12",
+                        "--trust-store", "/tmp/trust.p12",
+                        "--key-store-password", keyStorePassword,
+                        "--trust-store-password", trustStorePassword,
+                        "--log-level", logLevel
+                )
+            }
+
+            it("should set proper kafka bootstrap servers") {
+                assertThat(result.kafkaConfiguration.bootstrapServers).isEqualTo(kafkaBootstrapServers)
+            }
+
+            it("should set proper listen port") {
+                assertThat(result.serverListenAddress.port).isEqualTo(listenPort.toInt())
+            }
+
+
+            it("should set default listen address") {
+                assertThat(result.serverListenAddress.address.hostAddress).isEqualTo("0.0.0.0")
+            }
+
+            it("should set proper health check api port") {
+                assertThat(result.healthCheckApiListenAddress.port).isEqualTo(healthCheckApiPort.toInt())
+            }
+
+            it("should set default health check api address") {
+                assertThat(result.healthCheckApiListenAddress.address.hostAddress).isEqualTo("0.0.0.0")
+            }
+
+            it("should set proper first request delay") {
+                assertThat(result.configurationProviderParams.firstRequestDelay)
+                        .isEqualTo(Duration.ofSeconds(firstRequestDelay.toLong()))
+            }
+
+            it("should set proper request interval") {
+                assertThat(result.configurationProviderParams.requestInterval)
+                        .isEqualTo(Duration.ofSeconds(requestInterval.toLong()))
+            }
+
+            it("should set proper security configuration") {
+                assertThat(result.securityConfiguration.keys.isEmpty()).isFalse()
+
+                val keys = result.securityConfiguration.keys.orNull() as SecurityKeys
+                assertNotNull(keys.keyStore())
+                assertNotNull(keys.trustStore())
+                keys.keyStorePassword().useChecked {
+                    assertThat(it).isEqualTo(keyStorePassword.toCharArray())
+
+                }
+                keys.trustStorePassword().useChecked {
+                    assertThat(it).isEqualTo(trustStorePassword.toCharArray())
+                }
+            }
+
+            it("should set proper log level") {
+                assertThat(result.logLevel).isEqualTo(LogLevel.DEBUG)
+            }
+        }
+
+        describe("required parameter is absent") {
+            on("missing listen port") {
+                it("should throw exception") {
+                    assertThat(
+                            cut.parseExpectingFailure(
+                                    "--ssl-disable",
+                                    "--first-request-delay", firstRequestDelay,
+                                    "--request-interval", requestInterval
+                            )
+                    ).isInstanceOf(WrongArgumentError::class.java)
+                }
+            }
+            on("missing configuration url") {
+                it("should throw exception") {
+                    assertThat(
+                            cut.parseExpectingFailure(
+                                    "--listen-port", listenPort,
+                                    "--ssl-disable",
+                                    "--first-request-delay", firstRequestDelay,
+                                    "--request-interval", requestInterval
+                            )
+                    ).isInstanceOf(WrongArgumentError::class.java)
+                }
+            }
+        }
+
+        describe("correct log level not provided") {
+            on("missing log level") {
+                it("should set default INFO value") {
+                    val config = cut.parseExpectingSuccess(
+                            "--kafka-bootstrap-servers", kafkaBootstrapServers,
+                            "--health-check-api-port", healthCheckApiPort,
+                            "--listen-port", listenPort,
+                            "--first-request-delay", firstRequestDelay,
+                            "--request-interval", requestInterval,
+                            "--key-store", "/tmp/keys.p12",
+                            "--trust-store", "/tmp/trust.p12",
+                            "--key-store-password", keyStorePassword,
+                            "--trust-store-password", trustStorePassword
+                    )
+
+                    assertThat(config.logLevel).isEqualTo(LogLevel.INFO)
+                }
+            }
+
+            on("incorrect log level") {
+                it("should set default INFO value") {
+                    val config = cut.parseExpectingSuccess(
+                            "--kafka-bootstrap-servers", kafkaBootstrapServers,
+                            "--health-check-api-port", healthCheckApiPort,
+                            "--listen-port", listenPort,
+                            "--first-request-delay", firstRequestDelay,
+                            "--request-interval", requestInterval,
+                            "--key-store", "/tmp/keys.p12",
+                            "--trust-store", "/tmp/trust.p12",
+                            "--key-store-password", keyStorePassword,
+                            "--trust-store-password", trustStorePassword,
+                            "--log-level", "1"
+                    )
+
+                    assertThat(config.logLevel).isEqualTo(LogLevel.INFO)
+                }
+            }
+        }
+    }
+})
diff --git a/sources/hv-collector-configuration/src/test/kotlin/org/onap/dcae/collectors/veshv/config/api/FileConfigurationReaderTest.kt b/sources/hv-collector-configuration/src/test/kotlin/org/onap/dcae/collectors/veshv/config/api/FileConfigurationReaderTest.kt
new file mode 100644
index 00000000..55da7d02
--- /dev/null
+++ b/sources/hv-collector-configuration/src/test/kotlin/org/onap/dcae/collectors/veshv/config/api/FileConfigurationReaderTest.kt
@@ -0,0 +1,147 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 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.config.api
+
+import arrow.core.Some
+import org.jetbrains.spek.api.Spek
+import org.assertj.core.api.Assertions.assertThat
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.it
+import org.onap.dcae.collectors.veshv.config.api.model.Routing
+import org.onap.dcae.collectors.veshv.config.impl.FileConfigurationReader
+import org.onap.dcae.collectors.veshv.config.impl.PartialCbsConfig
+import org.onap.dcae.collectors.veshv.config.impl.PartialKafkaConfig
+import org.onap.dcae.collectors.veshv.config.impl.PartialSecurityConfig
+import org.onap.dcae.collectors.veshv.config.impl.PartialServerConfig
+import org.onap.dcae.collectors.veshv.utils.logging.LogLevel
+import java.io.InputStreamReader
+import java.io.StringReader
+import java.net.InetSocketAddress
+
+/**
+ * @author Pawel Biniek <pawel.biniek@nokia.com>
+ * @since February 2019
+ */
+internal object FileConfigurationReaderTest : Spek({
+    describe("A configuration loader utility") {
+
+        describe("partial configuration loading") {
+            it("parses enumerations") {
+                val input = """{"logLevel":"ERROR"}"""
+
+                val config = FileConfigurationReader().loadConfig(StringReader(input))
+                assertThat(config.logLevel).isEqualTo(Some(LogLevel.ERROR))
+            }
+
+            it("parses simple structure") {
+                val input = """{
+                "server" : {
+                    "healthCheckApiPort" : 12002,
+                    "listenPort" : 12003
+                }
+            }
+            """.trimIndent()
+                val config = FileConfigurationReader().loadConfig(StringReader(input))
+                assertThat(config.server.nonEmpty()).isTrue()
+                assertThat(config.server.orNull()?.healthCheckApiPort).isEqualTo(Some(12002))
+                assertThat(config.server.orNull()?.listenPort).isEqualTo(Some(12003))
+            }
+
+            it("parses ip address") {
+                val input = """{  "kafka" : {
+                    "kafkaServers": [
+                      "192.168.255.1:5005",
+                      "192.168.255.26:5006"
+                    ]
+                  }
+                }"""
+
+                val config = FileConfigurationReader().loadConfig(StringReader(input))
+                assertThat(config.kafka.nonEmpty()).isTrue()
+                val kafka = config.kafka.orNull() as PartialKafkaConfig
+                assertThat(kafka.kafkaServers.nonEmpty()).isTrue()
+                val addresses = kafka.kafkaServers.orNull() as Array<InetSocketAddress>
+                assertThat(addresses)
+                        .isEqualTo(arrayOf(
+                                InetSocketAddress("192.168.255.1", 5005),
+                                InetSocketAddress("192.168.255.26", 5006)
+                        ))
+            }
+
+            it("parses routing array with RoutingAdapter") {
+                val input = """{
+                    "kafka" : {
+                        "routing" : [
+                            {
+                              "fromDomain": "perf3gpp",
+                              "toTopic": "HV_VES_PERF3GPP"
+                            }
+                        ]
+                    }
+                }""".trimIndent()
+                val config = FileConfigurationReader().loadConfig(StringReader(input))
+                assertThat(config.kafka.nonEmpty()).isTrue()
+                val kafka = config.kafka.orNull() as PartialKafkaConfig
+                assertThat(kafka.routing.nonEmpty()).isTrue()
+                val routing = kafka.routing.orNull() as Routing
+                routing.run {
+                    assertThat(routes.size).isEqualTo(1)
+                    assertThat(routes[0].domain).isEqualTo("perf3gpp")
+                    assertThat(routes[0].targetTopic).isEqualTo("HV_VES_PERF3GPP")
+                }
+            }
+        }
+
+        describe("complete file loading") {
+            it("loads actual file") {
+                val config = FileConfigurationReader().loadConfig(
+                        InputStreamReader(
+                                FileConfigurationReaderTest.javaClass.getResourceAsStream("/sampleConfig.json")))
+                assertThat(config).isNotNull
+                assertThat(config.logLevel).isEqualTo(Some(LogLevel.ERROR))
+
+                assertThat(config.security.nonEmpty()).isTrue()
+                val security = config.security.orNull() as PartialSecurityConfig
+                assertThat(security.sslDisable.orNull()).isFalse()
+                assertThat(security.keys.nonEmpty()).isTrue()
+
+                assertThat(config.cbs.nonEmpty()).isTrue()
+                val cbs = config.cbs.orNull() as PartialCbsConfig
+                assertThat(cbs.firstRequestDelaySec).isEqualTo(Some(7))
+                assertThat(cbs.requestIntervalSec).isEqualTo(Some(900))
+
+                assertThat(config.kafka.nonEmpty()).isTrue()
+                val kafka = config.kafka.orNull() as PartialKafkaConfig
+                assertThat(kafka.kafkaServers.nonEmpty()).isTrue()
+                assertThat(kafka.routing.nonEmpty()).isTrue()
+
+                assertThat(config.server.nonEmpty()).isTrue()
+                val server = config.server.orNull() as PartialServerConfig
+                server.run {
+                    assertThat(dummyMode).isEqualTo(Some(false))
+                    assertThat(healthCheckApiPort).isEqualTo(Some(5000))
+                    assertThat(idleTimeoutSec).isEqualTo(Some(1200))
+                    assertThat(listenPort).isEqualTo(Some(6000))
+                    assertThat(maximumPayloadSizeBytes).isEqualTo(Some(512000))
+                }
+            }
+        }
+    }
+})
\ No newline at end of file
diff --git a/sources/hv-collector-configuration/src/test/resources/sampleConfig.json b/sources/hv-collector-configuration/src/test/resources/sampleConfig.json
new file mode 100644
index 00000000..b64df05a
--- /dev/null
+++ b/sources/hv-collector-configuration/src/test/resources/sampleConfig.json
@@ -0,0 +1,35 @@
+{
+  "server" : {
+    "healthCheckApiPort" : 5000,
+    "listenPort" : 6000,
+    "idleTimeoutSec" : 1200,
+    "maximumPayloadSizeBytes" : 512000,
+    "dummyMode" : false
+  },
+  "cbs" : {
+    "firstRequestDelaySec": 7,
+    "requestIntervalSec": 900
+  },
+  "security" : {
+    "sslDisable": false,
+    "keys": {
+      "keyStoreFile": "test.ks.pkcs12",
+      "keyStorePassword": "changeMe",
+      "trustStoreFile": "trust.ks.pkcs12",
+      "trustStorePassword": "changeMeToo"
+    }
+  },
+  "kafka" : {
+    "kafkaServers": [
+      "192.168.255.1:5005",
+      "192.168.255.1:5006"
+    ],
+    "routing": [
+      {
+        "fromDomain": "perf3gpp",
+        "toTopic": "HV_VES_PERF3GPP"
+      }
+    ]
+  },
+  "logLevel" : "ERROR"
+}
\ No newline at end of file