Clean restconf duplicate models and Implementation.

Change-Id: Id439ac5ded631aac0ee7fc69846ebe9bca650bb2
Issue-ID: CCSDK-1499
Signed-off-by: Brinda Santh <brindasanth@in.ibm.com>

7 files changed, 128 insertions, 200 deletions

diff --git a/ms/blueprintsprocessor/functions/resource-resolution/src/test/resources/logback-test.xml b/ms/blueprintsprocessor/functions/resource-resolution/src/test/resources/logback-test.xml
index c37e0b5a0..305c59f62 100644
--- a/ms/blueprintsprocessor/functions/resource-resolution/src/test/resources/logback-test.xml
+++ b/ms/blueprintsprocessor/functions/resource-resolution/src/test/resources/logback-test.xml
@@ -26,6 +26,7 @@
 

     <logger name="org.springframework" level="warn"/>

     <logger name="org.hibernate" level="info"/>

+    <logger name="org.mockserver.mock" level="warn"/>

     <logger name="org.onap.ccsdk.cds.controllerblueprints" level="warn"/>

     <logger name="org.onap.ccsdk.cds.blueprintsprocessor" level="info"/>

 

diff --git a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/scripts/InternalSimpleRestconf.cba.kts b/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/internal/scripts/InternalSimpleRestconf.kt
index 4ab7ddc4b..c4553abd6 100644
--- a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/scripts/InternalSimpleRestconf.cba.kts
+++ b/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/internal/scripts/InternalSimpleRestconf.kt
@@ -1,5 +1,5 @@
 /*
- *  Copyright © 2018 IBM.
+ *  Copyright © 2019 IBM.
  *
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -14,12 +14,13 @@
  *  limitations under the License.
  */
 @file:Suppress("unused")
+package internal.scripts
 
 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
-import org.onap.ccsdk.cds.blueprintsprocessor.functions.restconf.executor.RestconfComponentFunction
+import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractScriptComponentFunction
 import org.slf4j.LoggerFactory
 
-open class EditConfigure : RestconfComponentFunction() {
+open class EditConfigure : AbstractScriptComponentFunction() {
 
     val log = LoggerFactory.getLogger(EditConfigure::class.java)!!
 
@@ -37,7 +38,7 @@ open class EditConfigure : RestconfComponentFunction() {
     }
 }
 
-open class MountNEditConfigure : RestconfComponentFunction() {
+open class MountNEditConfigure : AbstractScriptComponentFunction() {
 
     val log = LoggerFactory.getLogger(MountNEditConfigure::class.java)!!
 
@@ -58,7 +59,7 @@ open class MountNEditConfigure : RestconfComponentFunction() {
 /**
  * This is for used for Testing only
  */
-open class TestRestconfConfigure : RestconfComponentFunction() {
+open class TestRestconfConfigure : AbstractScriptComponentFunction() {
 
     val log = LoggerFactory.getLogger(TestRestconfConfigure::class.java)!!
 
diff --git a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutor.kt b/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutor.kt
deleted file mode 100644
index 53828d769..000000000
--- a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutor.kt
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- *  Copyright © 2018 IBM.
- *
- *  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.
- */
-
-package org.onap.ccsdk.cds.blueprintsprocessor.functions.restconf.executor
-
-import com.fasterxml.jackson.databind.node.ArrayNode
-import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
-import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants
-import org.onap.ccsdk.cds.blueprintsprocessor.rest.RestLibConstants
-import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractComponentFunction
-import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.ComponentFunctionScriptingService
-import org.onap.ccsdk.cds.controllerblueprints.core.getAsString
-import org.springframework.beans.factory.config.ConfigurableBeanFactory
-import org.springframework.context.annotation.Scope
-import org.springframework.stereotype.Component
-
-@Component("component-restconf-executor")
-@Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
-open class ComponentRestconfExecutor(private var componentFunctionScriptingService: ComponentFunctionScriptingService) :
-        AbstractComponentFunction() {
-
-    lateinit var scriptComponent: RestconfComponentFunction
-
-    companion object {
-        const val SCRIPT_TYPE = "script-type"
-        const val SCRIPT_CLASS_REFERENCE = "script-class-reference"
-        const val INSTANCE_DEPENDENCIES = "instance-dependencies"
-    }
-
-    override suspend fun processNB(executionRequest: ExecutionServiceInput) {
-
-        val scriptType = operationInputs.getAsString(SCRIPT_TYPE)
-        val scriptClassReference = operationInputs.getAsString(SCRIPT_CLASS_REFERENCE)
-        val instanceDependenciesNode = operationInputs.get(INSTANCE_DEPENDENCIES) as? ArrayNode
-
-        val scriptDependencies: MutableList<String> = arrayListOf()
-        scriptDependencies.add(RestLibConstants.SERVICE_BLUEPRINT_REST_LIB_PROPERTY)
-        scriptDependencies.add(ResourceResolutionConstants.SERVICE_RESOURCE_RESOLUTION)
-
-        instanceDependenciesNode?.forEach { instanceName ->
-            scriptDependencies.add(instanceName.textValue())
-        }
-        /**
-         * Populate the Script Instance based on the Type
-         */
-        scriptComponent = componentFunctionScriptingService
-                .scriptInstance<RestconfComponentFunction>(this, scriptType,
-                        scriptClassReference, scriptDependencies)
-
-        checkNotNull(scriptComponent) { "failed to get restconf script component" }
-
-        // Handles both script processing and error handling
-        scriptComponent.executeScript(executionServiceInput)
-    }
-
-    override suspend fun recoverNB(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
-        bluePrintRuntimeService.getBluePrintError()
-                .addError("Failed in ComponentRestconfExecutor : ${runtimeException.message}")
-    }
-}
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfComponentFunction.kt b/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfComponentFunction.kt
deleted file mode 100644
index ede833cfb..000000000
--- a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfComponentFunction.kt
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- *  Copyright © 2018 IBM.
- *
- *  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.
- */
-@file:Suppress("unused")
-
-package org.onap.ccsdk.cds.blueprintsprocessor.functions.restconf.executor
-
-import kotlinx.coroutines.runBlocking
-import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants
-import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceResolutionService
-import org.onap.ccsdk.cds.blueprintsprocessor.rest.RestLibConstants
-import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BluePrintRestLibPropertyService
-import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BlueprintWebClientService
-import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractScriptComponentFunction
-
-@Deprecated("Methods defined as extension function of AbstractComponentFunction")
-abstract class RestconfComponentFunction : AbstractScriptComponentFunction() {
-
-    @Deprecated("Defined in AbstractScriptComponentFunction extension class")
-    open fun bluePrintRestLibPropertyService(): BluePrintRestLibPropertyService =
-            functionDependencyInstanceAsType(RestLibConstants.SERVICE_BLUEPRINT_REST_LIB_PROPERTY)
-
-    @Deprecated(" Use resourceResolutionService method directly",
-            replaceWith = ReplaceWith("resourceResolutionService()",
-                    "org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.resourceResolutionService"))
-    open fun resourceResolutionService(): ResourceResolutionService =
-            functionDependencyInstanceAsType(ResourceResolutionConstants.SERVICE_RESOURCE_RESOLUTION)
-
-
-    @Deprecated("Defined in AbstractScriptComponentFunction extension class")
-    fun restClientService(selector: String): BlueprintWebClientService {
-        return bluePrintRestLibPropertyService().blueprintWebClientService(selector)
-    }
-
-    @Deprecated(" Use storedContentFromResolvedArtifact method directly",
-            replaceWith = ReplaceWith("storedContentFromResolvedArtifact(resolutionKey, artifactName)",
-                    "org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.storedContentFromResolvedArtifact"))
-    fun resolveFromDatabase(resolutionKey: String, artifactName: String): String = runBlocking {
-        resourceResolutionService().resolveFromDatabase(bluePrintRuntimeService, artifactName, resolutionKey)
-    }
-
-    @Deprecated(" Use artifactContent method directly",
-            replaceWith = ReplaceWith("artifactContent(artifactName)",
-                    "org.onap.ccsdk.cds.blueprintsprocessor.services.execution.artifactContent"))
-    fun generateMessage(artifactName: String): String {
-        return bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactName)
-    }
-
-    @Deprecated(" Use contentFromResolvedArtifact method directly",
-            replaceWith = ReplaceWith("resolveAndGenerateMessage(artifactPrefix)",
-                    "org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.resolveAndGenerateMessage"))
-    fun resolveAndGenerateMessage(artifactPrefix: String): String = runBlocking {
-        resourceResolutionService().resolveResources(bluePrintRuntimeService, nodeTemplateName,
-                artifactPrefix, mapOf())
-    }
-}
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfExecutorExtensions.kt b/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfExecutorExtensions.kt
index 6e0c3b612..49fd025d9 100644
--- a/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfExecutorExtensions.kt
+++ b/ms/blueprintsprocessor/functions/restconf-executor/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/RestconfExecutorExtensions.kt
@@ -17,21 +17,86 @@
 
 package org.onap.ccsdk.cds.blueprintsprocessor.functions.restconf.executor
 
+import org.hibernate.annotations.common.util.impl.LoggerFactory
+import org.onap.ccsdk.cds.blueprintsprocessor.rest.restClientService
+import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BlueprintWebClientService
+import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractScriptComponentFunction
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintRetryException
+import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintDependencyService
+
 /**
  * Register the Restconf module exposed dependency
  */
 
+val log = LoggerFactory.logger(AbstractScriptComponentFunction::class.java)!!
+
+fun AbstractScriptComponentFunction.restconfClientService(selector: String): BlueprintWebClientService {
+    return BluePrintDependencyService.restClientService(selector)
+}
 
 /**
  * Generic Mount function
  */
 
+suspend fun AbstractScriptComponentFunction.restconfMountDevice(webClientService: BlueprintWebClientService,
+                                                                deviceId: String, payload: Any) {
+    val headers: MutableMap<String, String> = hashMapOf()
+    headers["Content-Type"] = "application/xml"
+    val mountUrl = "restconf/config/network-topology:network-topology/topology/topology-netconf/node/$deviceId"
+    log.info("sending mount request, url: $mountUrl")
+    webClientService.exchangeNB("PUT", mountUrl, payload, headers)
+
+    /** Check device has mounted */
+    val mountCheckUrl = "restconf/operational/network-topology:network-topology/topology/topology-netconf/node/$deviceId"
+
+    val expectedResult = """"netconf-node-topology:connection-status":"connected""""
+    val mountCheckExecutionBlock: suspend (Int) -> String = { tryCount: Int ->
+        val result = webClientService.exchangeNB("GET", mountCheckUrl, "")
+        if (result.body.contains(expectedResult)) {
+            log.info("NF was mounted successfully on ODL")
+            result.body
+        } else {
+            throw BluePrintRetryException("Wait for device($deviceId) to mount")
+        }
+    }
+
+    log.info("url for ODL status check: $mountCheckUrl")
+    webClientService.retry<String>(10, 0, 1000, mountCheckExecutionBlock)
+}
 
 /**
  * Generic Configure function
  */
+suspend fun AbstractScriptComponentFunction.restconfApplyDeviceConfig(webClientService: BlueprintWebClientService,
+                                                                      deviceId: String, configletResourcePath: String,
+                                                                      configletToApply: Any,
+                                                                      additionalHeaders: Map<String, String>?) {
 
+    log.debug("headers: $additionalHeaders")
+    log.info("configuring device: $deviceId, Configlet: $configletToApply")
+    val applyConfigUrl = "restconf/config/network-topology:network-topology/topology/topology-netconf/node/" +
+            "$deviceId/$configletResourcePath"
+    val result = webClientService.exchangeNB("PATCH", applyConfigUrl, configletToApply, additionalHeaders)
+    log.info("Configuration application result: $result")
+}
+
+
+suspend fun AbstractScriptComponentFunction.restconfDeviceConfig(webClientService: BlueprintWebClientService,
+                                                                 deviceId: String, configletResourcePath: String)
+        : BlueprintWebClientService.WebClientResponse<String> {
+
+    val configPathUrl = "restconf/config/network-topology:network-topology/topology/topology-netconf/node/" +
+            "$deviceId/$configletResourcePath"
+    log.debug("sending GET request,  url: $configPathUrl")
+    return webClientService.exchangeNB("GET", configPathUrl, "")
+}
 
 /**
- * Generic Unmount function
- */
\ No newline at end of file
+ * Generic UnMount function
+ */
+suspend fun AbstractScriptComponentFunction.restconfUnMountDevice(webClientService: BlueprintWebClientService,
+                                                                  deviceId: String, payload: String) {
+    val unMountUrl = "restconf/config/network-topology:network-topology/topology/topology-netconf/node/$deviceId"
+    log.info("sending unMount request, url: $unMountUrl")
+    webClientService.exchangeNB("DELETE", unMountUrl, "")
+}
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/functions/restconf-executor/src/test/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutorTest.kt b/ms/blueprintsprocessor/functions/restconf-executor/src/test/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutorTest.kt
index a651dad52..fb47b6ad1 100644
--- a/ms/blueprintsprocessor/functions/restconf-executor/src/test/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutorTest.kt
+++ b/ms/blueprintsprocessor/functions/restconf-executor/src/test/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/restconf/executor/ComponentRestconfExecutorTest.kt
@@ -17,7 +17,6 @@
 package org.onap.ccsdk.cds.blueprintsprocessor.functions.restconf.executor
 
 import com.fasterxml.jackson.databind.JsonNode
-import com.fasterxml.jackson.databind.node.ArrayNode
 import com.fasterxml.jackson.databind.node.ObjectNode
 import io.mockk.every
 import io.mockk.mockk
@@ -28,6 +27,7 @@ import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ActionIdentifiers
 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.CommonHeader
 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.StepData
+import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.ComponentScriptExecutor
 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonPrimitive
 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintContext
@@ -56,12 +56,12 @@ import kotlin.test.assertNotNull
 class ComponentRestconfExecutorTest {
 
     @Autowired
-    lateinit var componentRestconfExecutor: ComponentRestconfExecutor
+    lateinit var componentScriptExecutor: ComponentScriptExecutor
 
     @Test
     fun `test Restconf Component Instance`() {
         runBlocking {
-            assertNotNull(componentRestconfExecutor, "failed to get ComponentRestconfExecutor instance")
+            assertNotNull(componentScriptExecutor, "failed to get ComponentRestconfExecutor instance")
             val executionServiceInput = ExecutionServiceInput().apply {
                 commonHeader = CommonHeader().apply {
                     requestId = "1234"
@@ -72,17 +72,16 @@ class ComponentRestconfExecutorTest {
                 payload = JacksonUtils.jsonNode("{}") as ObjectNode
             }
             val bluePrintRuntime = mockk<DefaultBluePrintRuntimeService>("1234")
-            componentRestconfExecutor.bluePrintRuntimeService = bluePrintRuntime
-            componentRestconfExecutor.stepName = "sample-step"
+            componentScriptExecutor.bluePrintRuntimeService = bluePrintRuntime
+            componentScriptExecutor.stepName = "sample-step"
 
             val operationInputs = hashMapOf<String, JsonNode>()
             operationInputs[BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE] = "activate-restconf".asJsonPrimitive()
             operationInputs[BluePrintConstants.PROPERTY_CURRENT_INTERFACE] = "interfaceName".asJsonPrimitive()
             operationInputs[BluePrintConstants.PROPERTY_CURRENT_OPERATION] = "operationName".asJsonPrimitive()
-            operationInputs[ComponentRestconfExecutor.SCRIPT_TYPE] = BluePrintConstants.SCRIPT_INTERNAL.asJsonPrimitive()
-            operationInputs[ComponentRestconfExecutor.SCRIPT_CLASS_REFERENCE] =
-                    "InternalSimpleRestconf_cba\$TestRestconfConfigure".asJsonPrimitive()
-            operationInputs[ComponentRestconfExecutor.INSTANCE_DEPENDENCIES] = JacksonUtils.jsonNode("[]") as ArrayNode
+            operationInputs[ComponentScriptExecutor.SCRIPT_TYPE] = BluePrintConstants.SCRIPT_INTERNAL.asJsonPrimitive()
+            operationInputs[ComponentScriptExecutor.SCRIPT_CLASS_REFERENCE] =
+                    "internal.scripts.TestRestconfConfigure".asJsonPrimitive()
 
             val stepInputData = StepData().apply {
                 name = "activate-restconf"
@@ -103,7 +102,7 @@ class ComponentRestconfExecutorTest {
                         "interfaceName", "operationName")
             } returns operationOutputs
 
-            componentRestconfExecutor.applyNB(executionServiceInput)
+            componentScriptExecutor.applyNB(executionServiceInput)
         }
     }
 }
\ No newline at end of file
diff --git a/ms/blueprintsprocessor/modules/commons/rest-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/rest/service/BlueprintWebClientService.kt b/ms/blueprintsprocessor/modules/commons/rest-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/rest/service/BlueprintWebClientService.kt
index 5d35186b8..1acd07b7b 100644
--- a/ms/blueprintsprocessor/modules/commons/rest-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/rest/service/BlueprintWebClientService.kt
+++ b/ms/blueprintsprocessor/modules/commons/rest-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/rest/service/BlueprintWebClientService.kt
@@ -23,18 +23,15 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import org.apache.commons.io.IOUtils
 import org.apache.http.client.ClientProtocolException
-import org.apache.http.client.methods.HttpDelete
-import org.apache.http.client.methods.HttpGet
-import org.apache.http.client.methods.HttpPatch
-import org.apache.http.client.methods.HttpPost
-import org.apache.http.client.methods.HttpPut
-import org.apache.http.client.methods.HttpUriRequest
+import org.apache.http.client.methods.*
 import org.apache.http.entity.StringEntity
 import org.apache.http.impl.client.CloseableHttpClient
 import org.apache.http.impl.client.HttpClients
 import org.apache.http.message.BasicHeader
 import org.onap.ccsdk.cds.blueprintsprocessor.rest.utils.WebClientUtils
 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintRetryException
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.BluePrintIOUtils
 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
 import org.springframework.http.HttpMethod
 import java.io.IOException
@@ -49,9 +46,22 @@ interface BlueprintWebClientService {
 
     fun httpClient(): CloseableHttpClient {
         return HttpClients.custom()
-            .addInterceptorFirst(WebClientUtils.logRequest())
-            .addInterceptorLast(WebClientUtils.logResponse())
-            .build()
+                .addInterceptorFirst(WebClientUtils.logRequest())
+                .addInterceptorLast(WebClientUtils.logResponse())
+                .build()
+    }
+
+    /** High performance non blocking Retry function, If execution block [block] throws BluePrintRetryException
+     * exception then this will perform wait and retrigger accoring to times [times] with delay [delay]
+     */
+    suspend fun <T> retry(times: Int = 1, initialDelay: Long = 0, delay: Long = 1000,
+                          block: suspend (Int) -> T): T {
+        val exceptionBlock = { e: Exception ->
+            if (e !is BluePrintRetryException) {
+                throw e
+            }
+        }
+        return BluePrintIOUtils.retry(times, initialDelay, delay, block, exceptionBlock)
     }
 
     fun exchangeResource(methodType: String, path: String, request: String): WebClientResponse<String> {
@@ -72,8 +82,7 @@ interface BlueprintWebClientService {
             HttpMethod.POST -> post(path, request, convertedHeaders, String::class.java)
             HttpMethod.PUT -> put(path, request, convertedHeaders, String::class.java)
             HttpMethod.PATCH -> patch(path, request, convertedHeaders, String::class.java)
-            else -> throw BluePrintProcessorException("Unsupported met" +
-                "hodType($methodType)")
+            else -> throw BluePrintProcessorException("Unsupported methodType($methodType)")
         }
     }
 
@@ -126,8 +135,8 @@ interface BlueprintWebClientService {
 
     @Throws(IOException::class, ClientProtocolException::class)
     private fun <T> performCallAndExtractTypedWebClientResponse(
-        httpUriRequest: HttpUriRequest, responseType: Class<T>):
-        WebClientResponse<T> {
+            httpUriRequest: HttpUriRequest, responseType: Class<T>):
+            WebClientResponse<T> {
         val httpResponse = httpClient().execute(httpUriRequest)
         val statusCode = httpResponse.statusLine.statusCode
         httpResponse.entity.content.use {
@@ -145,10 +154,9 @@ interface BlueprintWebClientService {
     }
 
     suspend fun <T> getNB(path: String, additionalHeaders: Array<BasicHeader>?, responseType: Class<T>):
-        WebClientResponse<T> =
-        withContext(Dispatchers.IO) {
-            get(path, additionalHeaders!!, responseType)
-        }
+            WebClientResponse<T> = withContext(Dispatchers.IO) {
+        get(path, additionalHeaders!!, responseType)
+    }
 
     suspend fun postNB(path: String, request: Any): WebClientResponse<String> {
         return postNB(path, request, null, String::class.java)
@@ -159,10 +167,9 @@ interface BlueprintWebClientService {
     }
 
     suspend fun <T> postNB(path: String, request: Any, additionalHeaders: Array<BasicHeader>?,
-                           responseType: Class<T>): WebClientResponse<T> =
-        withContext(Dispatchers.IO) {
-            post(path, request, additionalHeaders!!, responseType)
-        }
+                           responseType: Class<T>): WebClientResponse<T> = withContext(Dispatchers.IO) {
+        post(path, request, additionalHeaders!!, responseType)
+    }
 
     suspend fun putNB(path: String, request: Any): WebClientResponse<String> {
         return putNB(path, request, null, String::class.java)
@@ -175,39 +182,36 @@ interface BlueprintWebClientService {
 
     suspend fun <T> putNB(path: String, request: Any,
                           additionalHeaders: Array<BasicHeader>?,
-                          responseType: Class<T>): WebClientResponse<T> =
-        withContext(Dispatchers.IO) {
-            put(path, request, additionalHeaders!!, responseType)
-        }
+                          responseType: Class<T>): WebClientResponse<T> = withContext(Dispatchers.IO) {
+        put(path, request, additionalHeaders!!, responseType)
+    }
 
     suspend fun <T> deleteNB(path: String): WebClientResponse<String> {
         return deleteNB(path, null, String::class.java)
     }
 
     suspend fun <T> deleteNB(path: String, additionalHeaders: Array<BasicHeader>?):
-        WebClientResponse<String> {
+            WebClientResponse<String> {
         return deleteNB(path, additionalHeaders, String::class.java)
     }
 
     suspend fun <T> deleteNB(path: String, additionalHeaders: Array<BasicHeader>?, responseType: Class<T>):
-        WebClientResponse<T> =
-        withContext(Dispatchers.IO) {
-            delete(path, additionalHeaders!!, responseType)
-        }
+            WebClientResponse<T> = withContext(Dispatchers.IO) {
+        delete(path, additionalHeaders!!, responseType)
+    }
 
     suspend fun <T> patchNB(path: String, request: Any, additionalHeaders: Array<BasicHeader>?, responseType: Class<T>):
-        WebClientResponse<T> =
-        withContext(Dispatchers.IO) {
-            patch(path, request, additionalHeaders!!, responseType)
-        }
+            WebClientResponse<T> = withContext(Dispatchers.IO) {
+        patch(path, request, additionalHeaders!!, responseType)
+    }
 
     suspend fun exchangeNB(methodType: String, path: String, request: Any): WebClientResponse<String> {
         return exchangeNB(methodType, path, request, hashMapOf(),
-            String::class.java)
+                String::class.java)
     }
 
     suspend fun exchangeNB(methodType: String, path: String, request: Any, additionalHeaders: Map<String, String>?):
-        WebClientResponse<String> {
+            WebClientResponse<String> {
         return exchangeNB(methodType, path, request, additionalHeaders, String::class.java)
     }
 
@@ -224,8 +228,7 @@ interface BlueprintWebClientService {
             HttpMethod.DELETE -> deleteNB(path, convertedHeaders, responseType)
             HttpMethod.PUT -> putNB(path, request, convertedHeaders, responseType)
             HttpMethod.PATCH -> patchNB(path, request, convertedHeaders, responseType)
-            else -> throw BluePrintProcessorException("Unsupported method" +
-                "Type($methodType)")
+            else -> throw BluePrintProcessorException("Unsupported methodType($methodType)")
         }
     }
 
@@ -246,7 +249,7 @@ interface BlueprintWebClientService {
     }
 
     private fun basicHeaders(headers: Map<String, String>?):
-        Array<BasicHeader> {
+            Array<BasicHeader> {
         val basicHeaders = mutableListOf<BasicHeader>()
         defaultHeaders().forEach { (name, value) ->
             basicHeaders.add(BasicHeader(name, value))
@@ -260,9 +263,9 @@ interface BlueprintWebClientService {
     // Non Blocking Rest Implementation
     suspend fun httpClientNB(): CloseableHttpClient {
         return HttpClients.custom()
-            .addInterceptorFirst(WebClientUtils.logRequest())
-            .addInterceptorLast(WebClientUtils.logResponse())
-            .build()
+                .addInterceptorFirst(WebClientUtils.logRequest())
+                .addInterceptorLast(WebClientUtils.logResponse())
+                .build()
     }
 
     //TODO maybe there could be cases where we care about return headers?