Dmaap Publisher base code

Dmaap publisher code for any component to create a session with the message-router

Issue-ID: CCSDK-693

Change-Id: I4e992f8e0d797a9a5ba169c47b81a54cabc907cb
Signed-off-by: janani b <janani.b@huawei.com>

10 files changed, 579 insertions, 304 deletions

diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/AafAuthDmaapClientService.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/AafAuthDmaapClientService.kt
new file mode 100644
index 000000000..dd884092d
--- /dev/null
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/AafAuthDmaapClientService.kt
@@ -0,0 +1,63 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CDS
+ * ================================================================================
+ * Copyright (C) 2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * ================================================================================
+ * 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.ccsdk.apps.blueprintsprocessor.dmaap
+
+import com.att.nsa.mr.client.MRBatchingPublisher
+import com.att.nsa.mr.client.MRClientFactory
+import com.att.nsa.mr.client.impl.MRSimplerBatchPublisher
+
+/**
+ * Representation of DMAAP client service for AAF auth type.
+ */
+class AafAuthDmaapClientService(private val clientProps:
+                                AafAuthDmaapClientProperties)
+    : BluePrintDmaapClientService {
+
+    /**
+     * The constructed DMAAP client.
+     */
+    var clients: MutableList<MRBatchingPublisher> = mutableListOf()
+
+
+    /**
+     * Returns the DMAAP client after constructing it properly with the data
+     * that is required for AAF auth connection.
+     */
+    override fun getDmaapClient(): MutableList<MRBatchingPublisher> {
+        if (!clients.isEmpty()) {
+            return clients
+        }
+        val topics = mutableListOf<String>()
+        topics.addAll(clientProps.topic.split(","))
+
+        for (t in topics) {
+            val client = MRClientFactory.createBatchingPublisher(
+                clientProps.host, t, clientProps.username,
+                clientProps.password, 1, 1, false,
+                clientProps.type, "")
+            val batchPublisher = client as MRSimplerBatchPublisher
+            batchPublisher.props = clientProps.props
+            clients.add(client)
+        }
+        return clients
+    }
+
+}
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapClientService.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapClientService.kt
new file mode 100644
index 000000000..21d7128e4
--- /dev/null
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapClientService.kt
@@ -0,0 +1,102 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CDS
+ * ================================================================================
+ * Copyright (C) 2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * ================================================================================
+ * 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.ccsdk.apps.blueprintsprocessor.dmaap
+
+import com.att.nsa.mr.client.MRBatchingPublisher
+import com.att.nsa.mr.client.MRPublisher
+import org.slf4j.LoggerFactory
+import java.io.IOException
+import java.util.concurrent.TimeUnit
+
+
+/**
+ * Abstraction of DMAAP client services that could form DMAAP client from the
+ * properties provided. This abstraction also provides a mechanism to send
+ * messages with the given partition in a session and closing the same.
+ */
+interface BluePrintDmaapClientService {
+
+    /**
+     * Static variable for logging.
+     */
+    companion object {
+        var log = LoggerFactory.getLogger(
+            BluePrintDmaapClientService::class.java)!!
+    }
+
+    /**
+     * Returns the properly constructed DMAAP client with the type.
+     */
+    fun  getDmaapClient(): MutableList<MRBatchingPublisher>
+
+    /**
+     * Sends messages to the sessions created by the information provided from
+     * application.properties and event.properties file
+     */
+    fun sendMessage(msgs: Collection<String>): Boolean {
+        var success = true
+        val clients = getDmaapClient()
+        val dmaapMsgs = mutableListOf<MRPublisher.message>()
+        for (m in msgs) {
+            dmaapMsgs.add(MRPublisher.message("1", m))
+        }
+        log.info("Sending messages to the DMAAP Server")
+        for (client in clients) {
+            try {
+                client.send(dmaapMsgs)
+            } catch (e: IOException) {
+                success = false
+                log.error(e.message, e)
+            }
+        }
+        return success
+    }
+
+    /**
+     * Sends message to the sessions created by the information provided from
+     * application.properties and event.properties file
+     */
+    fun sendMessage(msg: String): Boolean {
+        val msgs = mutableListOf<String>()
+        msgs.add(msg)
+        return sendMessage(msgs)
+    }
+
+    /**
+     * Closes the opened session that was used for sending messages.
+     */
+    fun close(timeout: Long): MutableList<MutableList<MRPublisher.message>>? {
+        log.debug("Closing the DMAAP producer clients")
+        var msgs: MutableList<MutableList<MRPublisher.message>> =
+            mutableListOf()
+        val clients = getDmaapClient()
+        for (client in clients) {
+            try {
+                var ms = client.close(timeout, TimeUnit.SECONDS)
+                msgs.add(ms)
+            } catch (e: IOException) {
+                log.warn("Unable to cleanly close the connection from the " +
+                        "client $client", e)
+            }
+        }
+        return msgs
+    }
+}
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/EnvironmentContext.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapLibConfiguration.kt
index 1d2a28ce8..ca1a07ba3 100644
--- a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/EnvironmentContext.kt
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapLibConfiguration.kt
@@ -20,37 +20,27 @@
 
 package org.onap.ccsdk.apps.blueprintsprocessor.dmaap
 
-import org.springframework.beans.factory.annotation.Autowired
-import org.springframework.core.env.Environment
-import org.springframework.stereotype.Component
-import javax.annotation.PostConstruct
+import org.springframework.boot.context.properties.EnableConfigurationProperties
+import org.springframework.context.annotation.ComponentScan
+import org.springframework.context.annotation.Configuration
 
 /**
- * Abstraction of environment context information component.
+ * Representation of DMAAP lib configuration to load the required property
+ * files into the application context.
  */
-@Component
-class EnvironmentContext {
+@Configuration
+@ComponentScan
+@EnableConfigurationProperties
+open class BluePrintDmaapLibConfiguration
 
-    /**
-     * Environment information.
-     */
+/**
+ * Util constants required for DMAAP library to use.
+ */
+class DmaapLibConstants {
     companion object {
-        var env: Environment? = null
-    }
-
-    /**
-     * Environment auto-wired information.
-     */
-    @Autowired
-    var environment: Environment? = null
-
-    /**
-     * Initiates the static variable after the instantiation takes place to
-     * the auto-wired variable.
-     */
-    @PostConstruct
-    private fun initStaticContext() {
-        env = environment
+        const val SERVICE_BLUEPRINT_DMAAP_LIB_PROPERTY = "blueprint" +
+                "-dmaap-lib-property-service"
+        const val TYPE_HTTP_NO_AUTH = "HTTPNOAUTH"
+        const val TYPE_HTTP_AAF_AUTH = "HTTPAAF"
     }
-
 }
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapLibPropertyService.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapLibPropertyService.kt
new file mode 100644
index 000000000..7abbefbca
--- /dev/null
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/BluePrintDmaapLibPropertyService.kt
@@ -0,0 +1,187 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CDS
+ * ================================================================================
+ * Copyright (C) 2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * ================================================================================
+ * 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.ccsdk.apps.blueprintsprocessor.dmaap
+
+import com.fasterxml.jackson.databind.JsonNode
+import org.onap.ccsdk.apps.blueprintsprocessor.core.BluePrintProperties
+import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.DmaapLibConstants.Companion.SERVICE_BLUEPRINT_DMAAP_LIB_PROPERTY
+import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.DmaapLibConstants.Companion.TYPE_HTTP_AAF_AUTH
+import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.DmaapLibConstants.Companion.TYPE_HTTP_NO_AUTH
+import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.context.annotation.Configuration
+import org.springframework.context.annotation.PropertySource
+import org.springframework.context.annotation.PropertySources
+import org.springframework.core.env.ConfigurableEnvironment
+import org.springframework.core.env.Environment
+import org.springframework.core.io.support.ResourcePropertySource
+import org.springframework.stereotype.Service
+import java.util.Properties
+
+/**
+ * Representation of DMAAP lib property service to load the properties
+ * according to the connection type to the DMAAP server and returning back
+ * the appropriate DMAAP client to send messages DMAAP client.
+ */
+@Service(SERVICE_BLUEPRINT_DMAAP_LIB_PROPERTY)
+@Configuration
+@PropertySources(PropertySource("classpath:event.properties"))
+open class BluePrintDmaapLibPropertyService(private var bluePrintProperties:
+                                            BluePrintProperties) {
+
+    /**
+     * Static variable for logging.
+     */
+    companion object {
+        var log = LoggerFactory.getLogger(
+            BluePrintDmaapLibPropertyService::class.java)!!
+    }
+
+    /**
+     * Environment entity to derive it from the system to load a specific
+     * property file.
+     */
+    @Autowired
+    lateinit var env: Environment
+
+    /**
+     * Returns the DMAAP client by providing the input properties as a JSON
+     * node.
+     */
+    fun blueprintDmaapClientService(jsonNode: JsonNode):
+            BluePrintDmaapClientService {
+        val dmaapProps = dmaapClientProperties(jsonNode)
+        return blueprintDmaapClientService(dmaapProps)
+    }
+
+    /**
+     * Returns the DMAAP client by providing the input properties as a
+     * selector string.
+     */
+    fun blueprintDmaapClientService(selector: String):
+            BluePrintDmaapClientService {
+        val prefix = "blueprintsprocessor.dmaapclient.$selector"
+        val dmaapProps = dmaapClientProperties(prefix)
+        return blueprintDmaapClientService(dmaapProps)
+    }
+
+    /**
+     * Returns the DMAAP client properties from the type of connection it
+     * requires.
+     */
+    fun dmaapClientProperties(prefix: String): DmaapClientProperties {
+        val type = bluePrintProperties.propertyBeanType(
+            "$prefix.type", String::class.java)
+        val clientProps : DmaapClientProperties
+
+        when (type) {
+            TYPE_HTTP_NO_AUTH -> {
+                clientProps =  bluePrintProperties.propertyBeanType(
+                    prefix, HttpNoAuthDmaapClientProperties::class.java)
+                clientProps.props = parseEventProps()
+            }
+
+            TYPE_HTTP_AAF_AUTH -> {
+                clientProps =  bluePrintProperties.propertyBeanType(
+                    prefix, AafAuthDmaapClientProperties::class.java)
+                clientProps.props = parseEventProps()
+            }
+
+            else -> {
+                throw BluePrintProcessorException("DMAAP adaptor($type) is " +
+                        "not supported")
+            }
+        }
+        return clientProps
+    }
+
+    /**
+     * Returns the DMAAP client properties from the type of connection it
+     * requires.
+     */
+    fun dmaapClientProperties(jsonNode: JsonNode): DmaapClientProperties {
+        val type = jsonNode.get("type").textValue()
+        val clientProps : DmaapClientProperties
+
+        when (type) {
+            TYPE_HTTP_NO_AUTH -> {
+                clientProps = JacksonUtils.readValue(jsonNode,
+                    HttpNoAuthDmaapClientProperties::class.java)!!
+                clientProps.props = parseEventProps()
+            }
+
+            TYPE_HTTP_AAF_AUTH -> {
+                clientProps = JacksonUtils.readValue(jsonNode,
+                    AafAuthDmaapClientProperties::class.java)!!
+                clientProps.props = parseEventProps()
+            }
+
+            else -> {
+                throw BluePrintProcessorException("DMAAP adaptor($type) is " +
+                        "not supported")
+            }
+        }
+        return clientProps
+    }
+
+    /**
+     * Returns DMAAP client service according to the type of client properties.
+     */
+    private fun blueprintDmaapClientService(clientProps: DmaapClientProperties):
+            BluePrintDmaapClientService {
+        when (clientProps) {
+            is HttpNoAuthDmaapClientProperties -> {
+                return HttpNoAuthDmaapClientService(clientProps)
+            }
+
+            is AafAuthDmaapClientProperties -> {
+                return AafAuthDmaapClientService(clientProps)
+            }
+
+            else -> {
+                throw BluePrintProcessorException("Unable to get the DMAAP " +
+                        "client")
+            }
+        }
+    }
+
+    /**
+     * Parses the event.properties file which contains the default values for
+     * the connection required.
+     */
+    private fun parseEventProps(): Properties {
+        val prodProps = Properties()
+        val proProps = (env as ConfigurableEnvironment).propertySources.get(
+            "class path resource [event.properties]")
+
+        if (proProps != null) {
+            val entries = (proProps as ResourcePropertySource).source.entries
+            for (e in entries) {
+                prodProps.put(e.key, e.value)
+            }
+        } else {
+            log.error("Unable to load the event.properties file")
+        }
+        return prodProps
+    }
+}
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/EventPublisher.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/DmaapClientProperties.kt
index 7d02e806c..97df2723b 100644
--- a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/EventPublisher.kt
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/DmaapClientProperties.kt
@@ -20,20 +20,27 @@
 
 package org.onap.ccsdk.apps.blueprintsprocessor.dmaap
 
+import java.util.Properties
+
 /**
- * Abstraction of a publisher, to send messages with the given partition in a
- * session and closing the same.
+ * Representation of data required for all DMAAP client.
  */
-interface EventPublisher {
-
-    /**
-     * Sends messages through a session on a given partition.
-     */
-    fun sendMessage(partition: String, messages: Collection<String>): Boolean
+open class DmaapClientProperties {
+    lateinit var props: Properties
+    lateinit var type: String
+    lateinit var host: String
+    lateinit var topic: String
+}
 
-    /**
-     * Closes the session with the given time.
-     */
-    fun close(timeout: Long)
+/**
+ * Representation of data required for HTTP no auth DMAAP client.
+ */
+open class HttpNoAuthDmaapClientProperties : DmaapClientProperties()
 
+/**
+ * Representation of data required for AAF auth DMAAP client.
+ */
+open class AafAuthDmaapClientProperties : DmaapClientProperties() {
+    lateinit var username: String
+    lateinit var password: String
 }
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/DmaapEventPublisher.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/DmaapEventPublisher.kt
deleted file mode 100644
index 7c686f089..000000000
--- a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/DmaapEventPublisher.kt
+++ /dev/null
@@ -1,181 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- * ONAP - CDS
- * ================================================================================
- * Copyright (C) 2019 Huawei Technologies Co., Ltd. All rights reserved.
- * ================================================================================
- * 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.ccsdk.apps.blueprintsprocessor.dmaap
-
-import com.att.nsa.mr.client.MRBatchingPublisher
-import com.att.nsa.mr.client.MRClientFactory
-import com.att.nsa.mr.client.MRPublisher
-import org.slf4j.LoggerFactory
-import org.springframework.boot.context.properties.bind.Binder
-import org.springframework.boot.context.properties.source.ConfigurationPropertySources
-import org.springframework.context.annotation.Configuration
-import org.springframework.context.annotation.PropertySource
-import org.springframework.context.annotation.PropertySources
-import org.springframework.core.env.ConfigurableEnvironment
-import org.springframework.core.env.Environment
-import org.springframework.core.io.support.ResourcePropertySource
-import java.io.IOException
-import java.util.Properties
-import java.util.concurrent.TimeUnit
-
-/**
- * Representation of DMaap event publisher, to create a session with the
- * message router and send messages when asked for. The producer.properties
- * is used for creating a session. In order to overwrite the parameters such
- * as host, topic, username and password, the event.properties can be used.
- *
- * compName : Name of the component appended in the event.properties file
- * to overwrite.
- * (E.g., so.topic=cds_so : In this "so" is the component name)
- */
-@Configuration
-@PropertySources(PropertySource("classpath:event.properties",
-        "classpath:producer.properties"))
-open class DmaapEventPublisher(compName: String = ""): EventPublisher {
-
-    /**
-     * Static variable for logging.
-     */
-    companion object {
-        var log = LoggerFactory.getLogger(DmaapEventPublisher::class.java)!!
-    }
-
-    /**
-     * The component name used in defining the event.properties file.
-     */
-    private var cName:String? = null
-
-    /**
-     * List of topics for a given message to be sent.
-     */
-    var topics = mutableListOf<String>()
-
-    /**
-     * List of clients formed for the list of topics where the messages has to
-     * be sent.
-     */
-    var clients = mutableListOf<MRBatchingPublisher>()
-
-    /**
-     * The populated values from producer.properties which are overwritten
-     * by the event.properties values according to the component information.
-     */
-    var prodProps: Properties = Properties()
-
-
-    init {
-        cName = compName
-    }
-
-    /**
-     * Loads the producer.properties file and populates all the parameters
-     * and then loads the event.properties file and populates the finalized
-     * parameters such as host, topic, username and password if available for
-     * the specified component. With this updated producer.properties, for
-     * each topic a client will be created.
-     */
-    private fun loadPropertiesInfo() {
-        if (prodProps.isEmpty) {
-            parseEventProps(cName!!)
-            addClients()
-        }
-    }
-
-    /**
-     * Adds clients for each topic into a client list.
-     */
-    private fun addClients() {
-        for (topic in topics) {
-            prodProps.setProperty("topic", topic)
-            val client = MRClientFactory.createBatchingPublisher(prodProps)
-            clients.add(client)
-        }
-    }
-
-    /**
-     * Parses the event.properties file and update it into the producer
-     * .properties, where both the files are loaded and stored.
-     */
-    private fun parseEventProps(cName: String) {
-        val env = EnvironmentContext.env as Environment
-        val propSrc = ConfigurationPropertySources.get(env)
-        val proProps = (env as ConfigurableEnvironment).propertySources.get(
-                "class path resource [producer.properties]")
-
-        if (proProps != null) {
-            val entries = (proProps as ResourcePropertySource).source.entries
-            for (e in entries) {
-                prodProps.put(e.key, e.value)
-            }
-        } else {
-            log.info("Unable to load the producer.properties file")
-        }
-
-        val eProps = Binder(propSrc).bind(cName, Properties::class.java).get()
-        val top = eProps.get("topic").toString()
-        if (top != "") {
-            topics.addAll(top.split(","))
-        }
-        prodProps.putAll(eProps)
-    }
-
-    /**
-     * Sends message to the sessions created by the information provided in
-     * the producer.properties file.
-     */
-    override fun sendMessage(partition: String , messages: Collection<String>):
-            Boolean {
-        loadPropertiesInfo()
-        var success = true
-        val dmaapMsgs = mutableListOf<MRPublisher.message>()
-        for (m in messages) {
-            dmaapMsgs.add(MRPublisher.message(partition, m))
-        }
-        for (client in clients) {
-            log.info("Sending messages to the DMaap Server")
-            try {
-                client.send(dmaapMsgs)
-            } catch (e: IOException) {
-                log.error(e.message, e)
-                success = false
-            }
-        }
-        return success
-    }
-
-    /**
-     * Closes the opened session that was used for sending messages.
-     */
-    override fun close(timeout: Long) {
-        log.debug("Closing the DMaap producer clients")
-        if (!clients.isEmpty()) {
-            for (client in clients) {
-                try {
-                    client.close(timeout, TimeUnit.SECONDS)
-                } catch (e : IOException) {
-                    log.warn("Unable to cleanly close the connection from " +
-                            "the client $client", e)
-                }
-            }
-        }
-    }
-    
-}
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/HttpNoAuthDmaapClientService.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/HttpNoAuthDmaapClientService.kt
new file mode 100644
index 000000000..ad023b962
--- /dev/null
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/dmaap/HttpNoAuthDmaapClientService.kt
@@ -0,0 +1,62 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CDS
+ * ================================================================================
+ * Copyright (C) 2019 Huawei Technologies Co., Ltd. All rights reserved.
+ * ================================================================================
+ * 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.ccsdk.apps.blueprintsprocessor.dmaap
+
+import com.att.nsa.mr.client.MRBatchingPublisher
+import com.att.nsa.mr.client.MRClientFactory.createSimplePublisher
+import com.att.nsa.mr.client.impl.MRSimplerBatchPublisher
+
+/**
+ * Representation of DMAAP client service for HTTP no auth type.
+ */
+class HttpNoAuthDmaapClientService(private val clientProps:
+                                   HttpNoAuthDmaapClientProperties)
+    : BluePrintDmaapClientService {
+
+    /**
+     * The constructed DMAAP client.
+     */
+    var clients: MutableList<MRBatchingPublisher> = mutableListOf()
+
+
+    /**
+     * Returns the DMAAP client after constructing it properly with the data
+     * that is required for HTTP no auth connection.
+     */
+    override fun getDmaapClient(): MutableList<MRBatchingPublisher> {
+        if (!clients.isEmpty()) {
+            return clients
+        }
+        val topics = mutableListOf<String>()
+        topics.addAll(clientProps.topic.split(","))
+
+        for (t in topics) {
+            val client = createSimplePublisher(clientProps.host, t)
+            val batchPublisher = client as MRSimplerBatchPublisher
+            batchPublisher.setProtocolFlag(clientProps.type)
+            batchPublisher.props = clientProps.props
+            clients.add(client)
+        }
+
+        return clients
+    }
+
+}
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/event.properties b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/event.properties
index be764d841..320b08e85 100644
--- a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/event.properties
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/event.properties
@@ -18,9 +18,9 @@
 # ============LICENSE_END=========================================================
 #
 
+#TransportType-Specify which way user want to use. I.e. <HTTPAAF,DME2,HTTPAUTH >
+Protocol =http
+partition=1
+contenttype = application/json
 
-so.topic=cds_so
-so.username=admin
-so.password=admin
-so.host=10.12.6.236:30226
 
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/producer.properties b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/producer.properties
deleted file mode 100644
index c3c228ba3..000000000
--- a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/resources/producer.properties
+++ /dev/null
@@ -1,52 +0,0 @@
-#
-# ============LICENSE_START=======================================================
-# ONAP - CDS
-# ================================================================================
-# Copyright (C) 2019 Huawei Technologies Co., Ltd. All rights reserved.
-# ================================================================================
-# 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=========================================================
-#
-
-#TransportType-Specify which way user want to use. I.e. <HTTPAAF,DME2,HTTPAUTH >
-TransportType=HTTPNOAUTH
-Latitude =50.000000
-Longitude =-100.000000
-Version =3.1
-ServiceName =dmaap-v1.dev.dmaap.dt.saat.acsi.att.com/events
-Environment =TEST
-Partner=BOT_R
-routeOffer=MR1
-SubContextPath =/
-Protocol =http
-MethodType =POST
-username =admin
-password =admin
-contenttype = application/json
-authKey=01234567890abcde:01234567890abcdefghijklmn
-authDate=2016-07-20T11:30:56-0700
-host=10.12.6.236:30227
-topic=org.onap.appc.UNIT-TEST
-partition=1
-maxBatchSize=100
-maxAgeMs=250
-AFT_DME2_EXCHANGE_REQUEST_HANDLERS=com.att.nsa.test.PreferredRouteRequestHandler
-AFT_DME2_EXCHANGE_REPLY_HANDLERS=com.att.nsa.test.PreferredRouteReplyHandler
-AFT_DME2_REQ_TRACE_ON=true
-AFT_ENVIRONMENT=AFTUAT
-AFT_DME2_EP_CONN_TIMEOUT=15000
-AFT_DME2_ROUNDTRIP_TIMEOUT_MS=240000
-AFT_DME2_EP_READ_TIMEOUT_MS=50000
-sessionstickinessrequired=NO
-DME2preferredRouterFilePath=src/test/resources/preferredRoute.txt
-MessageSentThreadOccurance=50
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/test/kotlin/org/ccsdk/apps/blueprintprocessor/dmaap/TestDmaapEventPublisher.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/test/kotlin/org/ccsdk/apps/blueprintprocessor/dmaap/TestDmaapEventPublisher.kt
index ac8882187..9b3aae5e6 100644
--- a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/test/kotlin/org/ccsdk/apps/blueprintprocessor/dmaap/TestDmaapEventPublisher.kt
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/test/kotlin/org/ccsdk/apps/blueprintprocessor/dmaap/TestDmaapEventPublisher.kt
@@ -20,10 +20,14 @@
 
 package org.ccsdk.apps.blueprintprocessor.dmaap
 
+import com.fasterxml.jackson.databind.ObjectMapper
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.DmaapEventPublisher
-import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.EnvironmentContext
+import org.onap.ccsdk.apps.blueprintsprocessor.core.BluePrintProperties
+import org.onap.ccsdk.apps.blueprintsprocessor.core.BlueprintPropertyConfiguration
+import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.BluePrintDmaapLibConfiguration
+import org.onap.ccsdk.apps.blueprintsprocessor.dmaap.BluePrintDmaapLibPropertyService
+import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration
 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
 import org.springframework.boot.test.context.SpringBootTest
@@ -45,32 +49,53 @@ import kotlin.test.assertNotNull
 @RunWith(SpringRunner::class)
 @EnableAutoConfiguration(exclude = [DataSourceAutoConfiguration::class])
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
-@ContextConfiguration(classes = [EnvironmentContext::class, TestController::class,
-    DmaapEventPublisher::class])
-@TestPropertySource(properties = ["server.port=9111","aai.topic=cds_aai",
-    "aai.username=admin","aai.password=admin","aai.host=127.0.0.1:9111",
-    "mul.topic=cds_mul_1,cds_mul_2", "mul.username=admin","mul.password=admin",
-    "mul.host=127.0.0.1:9111"])
+@ContextConfiguration(classes = [BluePrintDmaapLibConfiguration::class, TestController::class,
+    BlueprintPropertyConfiguration::class, BluePrintProperties::class])
+@TestPropertySource(properties = ["server.port=9111",
+    "blueprintsprocessor.dmaapclient.aai.topic=cds_aai",
+    "blueprintsprocessor.dmaapclient.aai.type=HTTPNOAUTH",
+    "blueprintsprocessor.dmaapclient.aai.host=127.0.0.1:9111",
+    "blueprintsprocessor.dmaapclient.multi.topic=cds_multi1,cds_multi2",
+    "blueprintsprocessor.dmaapclient.multi.type=HTTPNOAUTH",
+    "blueprintsprocessor.dmaapclient.multi.host=127.0.0.1:9111"])
 class TestDmaapEventPublisher {
 
+    @Autowired
+    lateinit var dmaapService : BluePrintDmaapLibPropertyService
+
     /**
      * Tests the event properties being set properly and sent as request.
      */
     @Test
     fun testEventProperties() {
         val strList = mutableListOf<String>()
-        val pub = DmaapEventPublisher(compName = "aai")
+        val dmaapClient = dmaapService.blueprintDmaapClientService("aai")
+
         strList.add("{\n" +
                 "    \"a\" : \"hello\"\n" +
                 "}")
-        pub.sendMessage("1", strList)
-        pub.close(2)
-        pub.prodProps
-        assertNotNull(pub.prodProps, "The property file updation failed")
-        assertEquals(pub.prodProps.get("topic"), "cds_aai")
-        assertEquals(pub.prodProps.get("username"), "admin")
-        assertEquals(pub.prodProps.get("password"), "admin")
-        assertEquals(pub.prodProps.get("host"), "127.0.0.1:9111")
+        dmaapClient.sendMessage(strList)
+        val msgs = dmaapClient.close(2)
+        assertEquals(msgs!!.size, 1)
+        val topic1 = msgs.get(0)
+        assertEquals(topic1!!.size, 0)
+    }
+
+    /**
+     * Tests the event properties being set properly and sent as request with
+     * single message.
+     */
+    @Test
+    fun testEventPropertiesWithSingleMsg() {
+        val dmaapClient = dmaapService.blueprintDmaapClientService("aai")
+        val str : String = "{\n" +
+                "    \"a\" : \"hello\"\n" +
+                "}"
+        dmaapClient.sendMessage(str)
+        val msgs = dmaapClient.close(2)
+        assertEquals(msgs!!.size, 1)
+        val topic1 = msgs.get(0)
+        assertEquals(topic1!!.size, 0)
     }
 
     /**
@@ -79,21 +104,93 @@ class TestDmaapEventPublisher {
     @Test
     fun testMultiTopicProperties() {
         val strList = mutableListOf<String>()
-        val pub = DmaapEventPublisher(compName = "mul")
+        val dmaapClient = dmaapService.blueprintDmaapClientService("multi")
+
+        strList.add("{\n" +
+                "    \"a\" : \"hello\"\n" +
+                "}")
+        dmaapClient.sendMessage(strList)
+        val msgs = dmaapClient.close(2)
+        assertEquals(msgs!!.size, 2)
+        val topic1 = msgs.get(0)
+        assertEquals(topic1!!.size, 0)
+        val topic2 = msgs.get(1)
+        assertEquals(topic2!!.size, 0)
+    }
+
+
+    /**
+     * Tests the event properties with multiple topics with JSON node as input.
+     */
+    @Test
+    fun testMultiTopicPropertiesWithJsonInput() {
+        val jsonString = "{\n" +
+                "    \"topic\" : \"cds_json1,cds_json2\",\n" +
+                "    \"type\" : \"HTTPNOAUTH\",\n" +
+                "    \"host\" : \"127.0.0.1:9111\"\n" +
+                "}"
+        val mapper = ObjectMapper()
+        val node = mapper.readTree(jsonString)
+        val strList = mutableListOf<String>()
+        val dmaapClient = dmaapService.blueprintDmaapClientService(node)
+
+        strList.add("{\n" +
+                "    \"a\" : \"hello\"\n" +
+                "}")
+        dmaapClient.sendMessage(strList)
+        val msgs = dmaapClient.close(2)
+        assertEquals(msgs!!.size, 2)
+        val topic1 = msgs.get(0)
+        assertEquals(topic1!!.size, 0)
+        val topic2 = msgs.get(1)
+        assertEquals(topic2!!.size, 0)
+    }
+
+
+    /**
+     * Tests the event properties with multiple messages.
+     */
+    @Test
+    fun testMultiMsgsProperties() {
+        val strList = mutableListOf<String>()
+        val dmaapClient = dmaapService.blueprintDmaapClientService("aai")
+
         strList.add("{\n" +
                 "    \"a\" : \"hello\"\n" +
                 "}")
-        pub.sendMessage("1", strList)
-        pub.close(2)
-        var tops = pub.topics
-        assertNotNull(pub.prodProps, "The property file updation failed")
-        assertEquals(tops[0], "cds_mul_1")
-        assertEquals(tops[1], "cds_mul_2")
-        //assertEquals(pub.topics.contains("cds_mul_2`"), true)
-        assertEquals(pub.prodProps.get("username"), "admin")
-        assertEquals(pub.prodProps.get("password"), "admin")
-        assertEquals(pub.prodProps.get("host"), "127.0.0.1:9111")
+        strList.add("{\n" +
+                "    \"a\" : \"second\"\n" +
+                "}")
+        dmaapClient.sendMessage(strList)
+        val msgs = dmaapClient.close(2)
+        assertEquals(msgs!!.size, 1)
+        val topic1 = msgs.get(0)
+        assertEquals(topic1!!.size, 0)
     }
+
+    /**
+     * Tests the DMAAP client properties generated with the complete prefix.
+     */
+    @Test
+    fun testDmaapClientProperties() {
+        val properties = dmaapService.dmaapClientProperties(
+            "blueprintsprocessor.dmaapclient.aai")
+        assertNotNull(properties, "failed to create property bean")
+        assertNotNull(properties.host, "failed to get url property" +
+                " in property bean")
+    }
+
+    /**
+     * Tests the blueprint DMAAP client service with only selector prefix.
+     */
+    @Test
+    fun testBlueprintDmaapClientService() {
+        val blueprintDmaapClientService =
+            dmaapService.blueprintDmaapClientService("aai")
+        assertNotNull(blueprintDmaapClientService,
+            "failed to create blueprintDmaapClientService")
+    }
+
 }
 
 /**