gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*
   2  * Copyright © 2017-2018 AT&T Intellectual Property.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.ccsdk.apps.blueprintsprocessor.services.workflow
  18
  19 import org.onap.ccsdk.apps.controllerblueprints.core.service.BluePrintRuntimeService
  20 import org.onap.ccsdk.sli.core.sli.*
  21 import org.onap.ccsdk.sli.core.sli.provider.*
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker
  23 import org.slf4j.LoggerFactory
  24 import org.slf4j.MDC
  25 import org.springframework.beans.factory.annotation.Autowired
  26 import org.springframework.context.ApplicationContext
  27 import org.springframework.stereotype.Service
  28 import java.util.*
  29 import javax.annotation.PostConstruct
  30
  31 interface BlueprintSvcLogicService : SvcLogicService {
  32
  33     fun registerDefaultExecutors()
  34
  35     fun registerExecutors(name: String, svcLogicNodeExecutor: SvcLogicNodeExecutor)
  36
  37     fun unRegisterExecutors(name: String)
  38
  39     fun execute(graph: SvcLogicGraph, bluePrintRuntimeService: BluePrintRuntimeService<*>, input: Any): Any
  40
  41     @Deprecated("Populate Graph Dynamically from Blueprints, No need to get from Database Store ")
  42     override fun getStore(): SvcLogicStore {
  43         TODO("not implemented")
  44     }
  45
  46     @Deprecated("Not used in Micro service Implementation")
  47     override fun hasGraph(module: String, rpc: String, version: String?, mode: String): Boolean {
  48         TODO("not implemented")
  49     }
  50
  51     @Deprecated("Not used in Micro service Implementation")
  52     override fun execute(p0: String?, p1: String?, p2: String?, p3: String?, p4: Properties?): Properties {
  53         TODO("not implemented")
  54     }
  55
  56     @Deprecated("Not used in Micro service Implementation")
  57     override fun execute(p0: String?, p1: String?, p2: String?, p3: String?, p4: Properties?, p5: DOMDataBroker?): Properties {
  58         TODO("not implemented")
  59     }
  60 }
  61
  62
  63 @Service
  64 class DefaultBlueprintSvcLogicService : BlueprintSvcLogicService {
  65
  66     private val log = LoggerFactory.getLogger(DefaultBlueprintSvcLogicService::class.java)
  67
  68     private val nodeExecutors: MutableMap<String, SvcLogicNodeExecutor> = hashMapOf()
  69
  70     @Autowired
  71     private lateinit var context: ApplicationContext
  72
  73     @PostConstruct
  74     override fun registerDefaultExecutors() {
  75
  76         val executeNodeExecutor = context.getBean(ExecuteNodeExecutor::class.java)
  77         registerExecutors("execute", executeNodeExecutor)
  78         registerExecutors("block", BlockNodeExecutor())
  79         registerExecutors("return", ReturnNodeExecutor())
  80         registerExecutors("break", BreakNodeExecutor())
  81         registerExecutors("exit", ExitNodeExecutor())
  82     }
  83
  84     override fun registerExecutors(name: String, svcLogicNodeExecutor: SvcLogicNodeExecutor) {
  85         log.info("Registering executors($name) with type(${svcLogicNodeExecutor.javaClass}")
  86         nodeExecutors.put(name, svcLogicNodeExecutor)
  87     }
  88
  89     override fun unRegisterExecutors(name: String) {
  90         if (nodeExecutors.containsKey(name)) {
  91             log.info("UnRegistering executors($name)")
  92             nodeExecutors.remove(name)
  93         }
  94     }
  95
  96     override fun execute(graph: SvcLogicGraph, bluePrintRuntimeService: BluePrintRuntimeService<*>, input: Any): Any {
  97         //Initialise BlueprintSvcLogic Context with Blueprint Runtime Service and Input Request
  98         val blueprintSvcLogicContext = BlueprintSvcLogicContext()
  99         blueprintSvcLogicContext.setBluePrintRuntimeService(bluePrintRuntimeService)
 100         blueprintSvcLogicContext.setRequest(input)
 101         // Execute the Graph
 102         execute(graph, blueprintSvcLogicContext)
 103         // Get the Response
 104         return blueprintSvcLogicContext.getResponse()
 105     }
 106
 107     override fun executeNode(node: SvcLogicNode?, ctx: SvcLogicContext): SvcLogicNode? {
 108         if (node == null) {
 109             return null
 110         } else {
 111             if (log.isDebugEnabled()) {
 112                 log.debug("Executing node {}", node.getNodeId())
 113             }
 114
 115             val executor = this.nodeExecutors[node.getNodeType()]
 116
 117             if (executor != null) {
 118                 log.debug("Executing node executor for node type {} - {}", node.getNodeType(), executor.javaClass.name)
 119                 return executor.execute(this, node, ctx)
 120             } else {
 121                 throw SvcLogicException("Attempted to execute a node of type " + node.getNodeType() + ", but no executor was registered for this type")
 122             }
 123         }
 124     }
 125
 126     override fun execute(graph: SvcLogicGraph, svcLogicContext: SvcLogicContext): SvcLogicContext {
 127         MDC.put("currentGraph", graph.toString())
 128
 129         var curNode: SvcLogicNode? = graph.getRootNode()
 130         log.info("About to execute graph {}", graph.toString())
 131
 132         try {
 133             while (curNode != null) {
 134                 MDC.put("nodeId", curNode.nodeId.toString() + " (" + curNode.nodeType + ")")
 135                 log.info("About to execute node # {} ({})", curNode.nodeId, curNode.nodeType)
 136                 val nextNode = this.executeNode(curNode, svcLogicContext)
 137                 curNode = nextNode
 138             }
 139         } catch (var5: ExitNodeException) {
 140             log.debug("SvcLogicServiceImpl caught ExitNodeException")
 141         }
 142
 143         MDC.remove("nodeId")
 144         MDC.remove("currentGraph")
 145         return svcLogicContext
 146     }
 147 }