appc-config/appc-flow-controller/provider/src/main/java/org/onap/appc/flow/controller/node/FlowControlNode.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : APP-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property.  All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.appc.flow.controller.node;
  22
  23 import java.io.FileInputStream;
  24 import java.io.IOException;
  25 import java.io.InputStream;
  26 import java.nio.charset.Charset;
  27 import java.util.ArrayList;
  28 import java.util.Arrays;
  29 import java.util.HashMap;
  30 import java.util.List;
  31 import java.util.Map;
  32 import java.util.Properties;
  33 import org.json.JSONObject;
  34
  35 import org.apache.commons.io.IOUtils;
  36 import org.apache.commons.lang3.StringUtils;
  37 import org.onap.appc.flow.controller.ResponseHandlerImpl.DefaultResponseHandler;
  38 import org.onap.appc.flow.controller.data.PrecheckOption;
  39 import org.onap.appc.flow.controller.data.ResponseAction;
  40 import org.onap.appc.flow.controller.data.Transaction;
  41 import org.onap.appc.flow.controller.data.Transactions;
  42 import org.onap.appc.flow.controller.dbervices.FlowControlDBService;
  43 import org.onap.appc.flow.controller.executorImpl.GraphExecutor;
  44 import org.onap.appc.flow.controller.executorImpl.NodeExecutor;
  45 import org.onap.appc.flow.controller.executorImpl.RestExecutor;
  46 import org.onap.appc.flow.controller.interfaceData.ActionIdentifier;
  47 import org.onap.appc.flow.controller.interfaceData.Capabilities;
  48 import org.onap.appc.flow.controller.interfaceData.DependencyInfo;
  49 import org.onap.appc.flow.controller.interfaceData.Input;
  50 import org.onap.appc.flow.controller.interfaceData.InventoryInfo;
  51 import org.onap.appc.flow.controller.interfaceData.RequestInfo;
  52 import org.onap.appc.flow.controller.interfaceData.Vm;
  53 import org.onap.appc.flow.controller.interfaceData.VnfInfo;
  54 import org.onap.appc.flow.controller.interfaceData.Vnfcs;
  55 import org.onap.appc.flow.controller.interfaceData.Vnfcslist;
  56 import org.onap.appc.flow.controller.interfaces.FlowExecutorInterface;
  57 import org.onap.appc.flow.controller.utils.EncryptionTool;
  58 import org.onap.appc.flow.controller.utils.FlowControllerConstants;
  59 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  60 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
  61 import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
  62
  63 import com.att.eelf.configuration.EELFLogger;
  64 import com.att.eelf.configuration.EELFManager;
  65 import com.fasterxml.jackson.annotation.JsonInclude.Include;
  66 import com.fasterxml.jackson.core.JsonParseException;
  67 import com.fasterxml.jackson.databind.DeserializationFeature;
  68 import com.fasterxml.jackson.databind.JsonMappingException;
  69 import com.fasterxml.jackson.databind.JsonNode;
  70 import com.fasterxml.jackson.databind.ObjectMapper;
  71 import com.fasterxml.jackson.databind.SerializationFeature;
  72
  73 public class FlowControlNode implements SvcLogicJavaPlugin{
  74
  75
  76     private static final  EELFLogger log = EELFManager.getInstance().getLogger(FlowControlNode.class);
  77     private static final String SDNC_CONFIG_DIR_VAR = "SDNC_CONFIG_DIR";
  78
  79     public void processFlow(Map<String, String> inParams, SvcLogicContext ctx) throws SvcLogicException {
  80         log.debug("Received processParamKeys call with params : " + inParams);
  81         String responsePrefix = inParams.get(FlowControllerConstants.INPUT_PARAM_RESPONSE_PRIFIX);
  82         try
  83         {
  84             responsePrefix = StringUtils.isNotBlank(responsePrefix) ? (responsePrefix+".") : "";
  85             FlowControlDBService dbservice = FlowControlDBService.initialise();
  86             SvcLogicContext  localContext = new SvcLogicContext();
  87             localContext.setAttribute(FlowControllerConstants.REQUEST_ID, ctx.getAttribute(FlowControllerConstants.REQUEST_ID));
  88             localContext.setAttribute(FlowControllerConstants.VNF_TYPE, ctx.getAttribute(FlowControllerConstants.VNF_TYPE));
  89             localContext.setAttribute(FlowControllerConstants.REQUEST_ACTION, ctx.getAttribute(FlowControllerConstants.REQUEST_ACTION));
  90             localContext.setAttribute(FlowControllerConstants.ACTION_LEVEL, ctx.getAttribute(FlowControllerConstants.ACTION_LEVEL));
  91             localContext.setAttribute(FlowControllerConstants.RESPONSE_PREFIX, responsePrefix);
  92             ctx.setAttribute(FlowControllerConstants.RESPONSE_PREFIX, responsePrefix);
  93             dbservice.getFlowReferenceData(ctx, inParams, localContext);
  94
  95             for (Object key : localContext.getAttributeKeySet()) {
  96                 String parmName = (String) key;
  97                 String parmValue = ctx.getAttribute(parmName);
  98                 log.debug("processFlow " + parmName +  "="  + parmValue);
  99
 100             }
 101             processFlowSequence(inParams, ctx, localContext);
 102             if(!ctx.getAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_STATUS).equals(FlowControllerConstants.OUTPUT_STATUS_SUCCESS))
 103                 throw new SvcLogicException(ctx.getAttribute(responsePrefix +  FlowControllerConstants.OUTPUT_STATUS_MESSAGE));
 104
 105         } catch (Exception e) {
 106             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_STATUS, FlowControllerConstants.OUTPUT_STATUS_FAILURE);
 107             ctx.setAttribute(responsePrefix + FlowControllerConstants.OUTPUT_PARAM_ERROR_MESSAGE, e.getMessage());
 108             e.printStackTrace();
 109             throw new SvcLogicException(e.getMessage());
 110         }
 111     }
 112
 113     private void processFlowSequence( Map<String, String> inParams, SvcLogicContext ctx, SvcLogicContext localContext) throws Exception
 114     {
 115         String fn = "FlowExecutorNode.processflowSequence";
 116         log.debug(fn + "Received model for flow : " + localContext.toString());
 117         FlowControlDBService dbservice = FlowControlDBService.initialise();
 118         String flowSequnce  =null;
 119         for (Object key : localContext.getAttributeKeySet()) {
 120             String parmName = (String) key;
 121             String parmValue = ctx.getAttribute(parmName);
 122             log.debug(parmName +  "="  + parmValue);
 123
 124         }
 125         if(localContext != null && localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE) !=null){
 126
 127             if(localContext.getAttribute(FlowControllerConstants.GENERATION_NODE) != null){
 128                 GraphExecutor transactionExecutor = new GraphExecutor();
 129                 Boolean generatorExists = transactionExecutor.hasGraph("APPC_COMMOM", localContext.getAttribute(FlowControllerConstants.GENERATION_NODE), null, "sync");
 130                 if(generatorExists){
 131                     flowSequnce = transactionExecutor.executeGraph("APPC_COMMOM", localContext.getAttribute(FlowControllerConstants.GENERATION_NODE),
 132                             null, "sync", null).getProperty(FlowControllerConstants.FLOW_SEQUENCE);
 133                 }
 134                 else
 135                     throw new Exception("Can not find Custom defined Flow Generator for " + localContext.getAttribute(FlowControllerConstants.GENERATION_NODE));
 136             }
 137             else if(((String) localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE)).equalsIgnoreCase(FlowControllerConstants.DESINGTIME)){
 138                 localContext.setAttribute(FlowControllerConstants.VNFC_TYPE, ctx.getAttribute(FlowControllerConstants.VNFC_TYPE));
 139                 flowSequnce = dbservice.getDesignTimeFlowModel(localContext);
 140                 if(flowSequnce == null)
 141                     throw new Exception("Flow Sequence is not found User Desinged VNF " + ctx.getAttribute(FlowControllerConstants.VNF_TYPE));
 142             }
 143             else if(((String) localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE)).equalsIgnoreCase(FlowControllerConstants.RUNTIME)){
 144
 145                 Transaction transaction = new Transaction();
 146                 String input = collectInputParams(ctx,transaction);
 147                 log.info("CollectInputParamsData-Input: " + input );
 148
 149                 RestExecutor restExe = new RestExecutor();
 150                 HashMap<String,String>flowSeq= restExe.execute(transaction, localContext);
 151
 152                 JSONObject sequence=new JSONObject(flowSeq.get("restResponse"));
 153                 if(sequence.has("output"))
 154                     flowSequnce = sequence.getJSONObject("output").toString();
 155                 log.info("MultistepSequenceGenerator-Output: "+flowSequnce);
 156
 157                 if(flowSequnce == null)
 158                     throw new Exception("Failed to get the Flow Sequece runtime for VNF type" + ctx.getAttribute(FlowControllerConstants.VNF_TYPE));
 159
 160             }
 161             else if(((String) localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE)).equalsIgnoreCase(FlowControllerConstants.EXTERNAL)){
 162                 //String input = collectInputParams(localContext);
 163                 //    flowSequnce = ""; //get it from the External interface calling the Rest End point - TBD
 164                 if(flowSequnce == null)
 165                     throw new Exception("Flow Sequence not found for " + ctx.getAttribute(FlowControllerConstants.VNF_TYPE));
 166             }
 167             else
 168             {
 169                 //No other type of model supported...in Future can get flowModel from other generators which will be included here
 170                 throw new Exception("No information found for sequence Owner Design-Time Vs Run-Time" );
 171             }
 172         }
 173         else{
 174             FlowGenerator flowGenerator = new FlowGenerator();
 175             Transactions trans = flowGenerator.createSingleStepModel(inParams,ctx);
 176             ObjectMapper mapper = new ObjectMapper();
 177             flowSequnce = mapper.writeValueAsString(trans);
 178             log.debug("Single step Flow Sequence : " +  flowSequnce);
 179
 180         }
 181         log.debug("Received Flow Sequence : " +  flowSequnce);
 182
 183         HashMap<Integer, Transaction> transactionMap = createTransactionMap(flowSequnce, localContext);
 184         exeuteAllTransaction(transactionMap, ctx);
 185         log.info("Executed all the transacstion successfully");
 186
 187     }
 188
 189     private void exeuteAllTransaction(HashMap<Integer, Transaction> transactionMap, SvcLogicContext ctx) throws Exception {
 190
 191         String fn = "FlowExecutorNode.exeuteAllTransaction ";
 192         int retry = 0;
 193         FlowExecutorInterface flowExecutor = null;
 194         for (int key = 1; key <= transactionMap.size() ; key++ )
 195         {
 196             log.debug(fn + "Starting transactions ID " + key + " :)=" + retry);
 197             Transaction transaction = transactionMap.get(key);
 198             if(!preProcessor(transactionMap, transaction)){
 199                 log.info("Skipping Transaction ID " +  transaction.getTransactionId());
 200                 continue;
 201             }
 202             if(transaction.getExecutionType() != null){
 203                 switch (transaction.getExecutionType()){
 204                 case FlowControllerConstants.GRAPH :
 205                     flowExecutor = new GraphExecutor();
 206                     break;
 207                 case FlowControllerConstants.NODE :
 208                     flowExecutor =  new NodeExecutor();
 209                     break;
 210                 case FlowControllerConstants.REST :
 211                     flowExecutor = new RestExecutor();
 212                     break;
 213                 default :
 214                     throw new Exception("No Executor found for transaction ID" + transaction.getTransactionId());
 215                 }
 216                 flowExecutor.execute(transaction, ctx);
 217                 ResponseAction responseAction= handleResponse(transaction);
 218
 219                 if(responseAction.getWait() != null && Integer.parseInt(responseAction.getWait()) > 0){
 220                     log.debug(fn + "Going to Sleep .... " + responseAction.getWait());
 221                     Thread.sleep(Integer.parseInt(responseAction.getWait())*1000);
 222                 }
 223
 224                 if(responseAction.isIntermediateMessage()){
 225                     log.debug(fn + "Sending Intermediate Message back  .... ");
 226                     sendIntermediateMessage();
 227                 }
 228                 if(responseAction.getRetry() != null && Integer.parseInt(responseAction.getRetry()) > retry ){
 229                     log.debug(fn + "Ooppss!!! We will retry again ....... ");
 230                         key--;
 231                         retry++;
 232                     log.debug(fn + "key =" +  key +  "retry =" + retry);
 233
 234                 }
 235                 if(responseAction.isIgnore()){
 236                     log.debug(fn + "Ignoring this Error and moving ahead  ....... ");
 237                     continue;
 238                 }
 239                 if(responseAction.isStop()){
 240                     log.debug(fn + "Need to Stop  ....... ");
 241                     break;
 242                 }
 243                 if(responseAction.getJump() != null && Integer.parseInt(responseAction.getJump()) > 0 ){
 244                     key = Integer.parseInt(responseAction.getJump());
 245                     key --;
 246                 }
 247                 log.debug(fn + "key =" +  key +  "retry =" + retry);
 248
 249             }
 250             else{
 251                 throw new Exception("Don't know how to execute transaction ID " + transaction.getTransactionId());
 252             }
 253         }
 254
 255     }
 256     private void sendIntermediateMessage() {
 257         // TODO Auto-generated method stub
 258
 259     }
 260
 261     private ResponseAction handleResponse(Transaction transaction) {
 262         log.info("Handling Response for transaction Id " + transaction.getTransactionId());
 263         DefaultResponseHandler defaultHandler = new DefaultResponseHandler();
 264         return defaultHandler.handlerResponse(transaction);
 265     }
 266
 267     private boolean preProcessor(HashMap<Integer, Transaction> transactionMap, Transaction transaction) throws IOException {
 268
 269         log.debug("Starting Preprocessing Logic ");
 270         boolean runthisStep = false;
 271         try{
 272             if(transaction.getPrecheck() != null && transaction.getPrecheck().getPrecheckOptions() != null
 273                     && !transaction.getPrecheck().getPrecheckOptions().isEmpty()){
 274                 List<PrecheckOption> precheckOptions  = transaction.getPrecheck().getPrecheckOptions();
 275                 for(PrecheckOption precheck : precheckOptions){
 276                     Transaction trans = transactionMap.get(precheck.getpTransactionID());
 277                     ObjectMapper mapper = new ObjectMapper();
 278                     log.info("Mapper= " + mapper.writeValueAsString(trans));
 279                     HashMap<Object, Object> trmap = mapper.readValue(mapper.writeValueAsString(trans), HashMap.class);
 280                     if(trmap.get(precheck.getParamName()) != null &&
 281                             ((String) trmap.get(precheck.getParamName())).equalsIgnoreCase(precheck.getParamValue()))
 282                         runthisStep = true;
 283                     else
 284                         runthisStep = false;
 285
 286                     if(transaction.getPrecheck().getPrecheckOperator() != null &&
 287                             transaction.getPrecheck().getPrecheckOperator().equalsIgnoreCase("any") && runthisStep)
 288                         break;
 289                 }
 290             }
 291
 292             else{
 293                 log.debug("No Pre check defined for transaction ID " + transaction.getTransactionId());
 294                 runthisStep = true;
 295
 296             }
 297         }
 298         catch(Exception e)
 299         {
 300             e.printStackTrace();
 301             throw e;
 302         }
 303         log.debug("Returing process current Transaction = " + runthisStep);
 304
 305         return runthisStep ;
 306     }
 307
 308     private HashMap<Integer, Transaction> createTransactionMap(String flowSequnce, SvcLogicContext localContext) throws Exception {
 309         ObjectMapper mapper = new ObjectMapper();
 310         Transactions transactions = mapper.readValue(flowSequnce,Transactions.class);
 311         HashMap<Integer, Transaction> transMap = new HashMap<Integer, Transaction>();
 312         for(Transaction transaction : transactions.getTransactions()){
 313             compileFlowDependencies(transaction, localContext);
 314             //loadTransactionIntoStatus(transactions, ctx); //parse the Transactions Object and create records in process_flow_status table
 315             transMap.put(transaction.getTransactionId(), transaction);
 316         }
 317         return transMap;
 318     }
 319
 320     private void compileFlowDependencies(Transaction transaction, SvcLogicContext localContext) throws Exception {
 321
 322         String fn = "FlowExecutorNode.compileFlowDependencies";
 323         FlowControlDBService dbservice = FlowControlDBService.initialise();
 324         dbservice.populateModuleAndRPC(transaction, localContext.getAttribute(FlowControllerConstants.VNF_TYPE));
 325         ObjectMapper mapper = new ObjectMapper();
 326         log.debug("Indivisual Transaction Details :" + transaction.toString());
 327         if((localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE) == null) ||
 328                 ( localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE) != null &&
 329                 ! localContext.getAttribute(FlowControllerConstants.SEQUENCE_TYPE).equalsIgnoreCase(FlowControllerConstants.DESINGTIME))){
 330             localContext.setAttribute("artifact-content", mapper.writeValueAsString(transaction));
 331             dbservice.loadSequenceIntoDB(localContext);
 332         }
 333         //get a field in transction class as transactionhandle interface and register the Handler here for each trnactions
 334     }
 335
 336     private String collectInputParams(SvcLogicContext ctx,Transaction transaction) throws Exception {
 337
 338         String fn = "FlowExecuteNode.collectInputParams";
 339         Properties prop = loadProperties();
 340         log.info("Loaded Properties " + prop.toString());
 341
 342         String vnfId = ctx.getAttribute(FlowControllerConstants.VNF_ID);
 343         String inputData = null;
 344         log.debug(fn + "vnfId :" + vnfId);
 345
 346         if (StringUtils.isBlank(vnfId)) {
 347             throw new Exception("VnfId is missing");
 348         }
 349
 350         try {
 351
 352             ActionIdentifier actionIdentifier = new ActionIdentifier();
 353             log.debug("Enter ActionIdentifier");
 354             if (StringUtils.isNotBlank(vnfId)) {
 355                 actionIdentifier.setVnfId(vnfId);
 356             }
 357             if (StringUtils.isNotBlank(ctx.getAttribute(FlowControllerConstants.VSERVER_ID))) {
 358                 actionIdentifier.setVserverId(ctx.getAttribute(FlowControllerConstants.VSERVER_ID));
 359             }
 360             if (StringUtils.isNotBlank(ctx.getAttribute(FlowControllerConstants.VNFC_NAME))) {
 361                 actionIdentifier.setVnfcName(ctx.getAttribute(FlowControllerConstants.VNFC_NAME));
 362             }
 363             log.info("ActionIdentifierData" + actionIdentifier.toString());
 364
 365             RequestInfo requestInfo = new RequestInfo();
 366             log.info("Enter RequestInfo");
 367             requestInfo.setAction(ctx.getAttribute(FlowControllerConstants.REQUEST_ACTION));
 368             requestInfo.setActionLevel(ctx.getAttribute(FlowControllerConstants.ACTION_LEVEL));
 369             requestInfo.setPayload(ctx.getAttribute(FlowControllerConstants.PAYLOAD));
 370             requestInfo.setActionIdentifier(actionIdentifier);
 371             log.debug("RequestInfo: " + requestInfo.toString());
 372
 373             InventoryInfo inventoryInfo = getInventoryInfo(ctx, vnfId);
 374             DependencyInfo dependencyInfo = getDependencyInfo(ctx);
 375             Capabilities capabilites = getCapabilitesData(ctx);
 376
 377             Input input = new Input();
 378             log.info("Enter InputData");
 379             input.setRequestInfo(requestInfo);
 380             input.setInventoryInfo(inventoryInfo);
 381             input.setDependencyInfo(dependencyInfo);
 382             input.setCapabilities(capabilites);
 383             log.info(fn + "Input parameters:" + input.toString());
 384
 385             ObjectMapper mapper = new ObjectMapper();
 386             mapper.setSerializationInclusion(Include.NON_NULL);
 387             mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
 388             inputData = mapper.writeValueAsString(input);
 389             log.info("InputDataJson:" + inputData);
 390
 391         } catch (Exception e) {
 392             e.printStackTrace();
 393         }
 394
 395         String resourceUri = prop.getProperty(FlowControllerConstants.SEQ_GENERATOR_URL);
 396         log.info(fn + "resourceUri= " + resourceUri);
 397
 398         EncryptionTool et = EncryptionTool.getInstance();
 399         String pass = et.decrypt(prop.getProperty(FlowControllerConstants.SEQ_GENERATOR_PWD));
 400
 401         transaction.setPayload(inputData);
 402         transaction.setExecutionRPC("POST");
 403         transaction.setuId(prop.getProperty(FlowControllerConstants.SEQ_GENERATOR_UID));
 404         transaction.setPswd(pass);
 405         transaction.setExecutionEndPoint(resourceUri);
 406
 407         return inputData;
 408
 409     }
 410
 411     private DependencyInfo getDependencyInfo(SvcLogicContext ctx) throws Exception {
 412
 413         String fn = "FlowExecutorNode.getDependencyInfo";
 414         DependencyInfo dependencyInfo = new DependencyInfo();
 415         FlowControlDBService dbservice = FlowControlDBService.initialise();
 416         String dependencyData = dbservice.getDependencyInfo(ctx);
 417         log.info(fn + "dependencyDataInput:" + dependencyData);
 418
 419         if (dependencyData != null) {
 420             ObjectMapper mapper = new ObjectMapper();
 421             mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,false);
 422             mapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
 423             //JsonNode dependencyInfoData = mapper.readTree(dependencyData).get("dependencyInfo");
 424             JsonNode vnfcData = mapper.readTree(dependencyData.toString()).get("vnfcs");
 425             List<Vnfcs> vnfclist = Arrays.asList(mapper.readValue(vnfcData.toString(), Vnfcs[].class));
 426             dependencyInfo.getVnfcs().addAll(vnfclist);
 427
 428             log.info("Dependency Output:"+ dependencyInfo.toString());
 429         }
 430
 431         return dependencyInfo;
 432
 433     }
 434
 435     private Capabilities getCapabilitesData(SvcLogicContext ctx)throws Exception {
 436
 437         String fn = "FlowExecutorNode.getCapabilitesData";
 438         Capabilities capabilities = new Capabilities();
 439         FlowControlDBService dbservice = FlowControlDBService.initialise();
 440         String capabilitiesData = dbservice.getCapabilitiesData(ctx);
 441         log.info(fn + "capabilitiesDataInput:" + capabilitiesData);
 442
 443         if (capabilitiesData != null) {
 444             ObjectMapper mapper = new ObjectMapper();
 445             mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,false);
 446             mapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
 447             JsonNode capabilitiesNode = mapper.readValue(capabilitiesData,JsonNode.class);
 448             log.info("capabilitiesNode:" + capabilitiesNode.toString());
 449
 450             JsonNode vnfs = capabilitiesNode.findValue(FlowControllerConstants.VNF);
 451             List<String> vnfsList = new ArrayList<String>();
 452             if (vnfs != null) {
 453                 for (int i = 0; i < vnfs.size(); i++) {
 454
 455                     String vnf = vnfs.get(i).asText();
 456                     vnfsList.add(vnf);
 457                 }
 458             }
 459
 460             JsonNode vfModules = capabilitiesNode.findValue(FlowControllerConstants.VF_MODULE);
 461             List<String> vfModulesList = new ArrayList<String>();
 462             if (vfModules != null) {
 463                 for (int i = 0; i < vfModules.size(); i++) {
 464
 465                     String vfModule = vfModules.get(i).asText();
 466                     vfModulesList.add(vfModule);
 467                 }
 468             }
 469
 470             JsonNode vnfcs = capabilitiesNode.findValue(FlowControllerConstants.VNFC);
 471             List<String> vnfcsList = new ArrayList<String>();
 472             if (vnfcs != null) {
 473                 for (int i = 0; i < vnfcs.size(); i++) {
 474
 475                     String vnfc1 = vnfcs.get(i).asText();
 476                     vnfcsList.add(vnfc1);
 477                 }
 478             }
 479
 480             JsonNode vms = capabilitiesNode.findValue(FlowControllerConstants.VM);
 481
 482             List<String> vmList = new ArrayList<String>();
 483             if (vms != null) {
 484                 for (int i = 0; i < vms.size(); i++) {
 485
 486                     String vm1 = vms.get(i).asText();
 487                     vmList.add(vm1);
 488                 }
 489             }
 490
 491             capabilities.getVnfc().addAll(vnfcsList);
 492             capabilities.getVnf().addAll(vnfsList);
 493             capabilities.getVfModule().addAll(vfModulesList);
 494             capabilities.getVm().addAll(vmList);
 495
 496             log.info("Capabilities Output:"+ capabilities.toString());
 497
 498         }
 499
 500         return capabilities;
 501
 502     }
 503
 504     private InventoryInfo getInventoryInfo(SvcLogicContext ctx, String vnfId) throws Exception{
 505
 506         String fn = "FlowExecutorNode.getInventoryInfo";
 507
 508         VnfInfo vnfInfo = new VnfInfo();
 509         vnfInfo.setVnfId(vnfId);
 510         vnfInfo.setVnfName(ctx.getAttribute("tmp.vnfInfo.vnf.vnf-name"));
 511         vnfInfo.setVnfType(ctx.getAttribute("tmp.vnfInfo.vnf.vnf-type"));
 512
 513         String vmcount = ctx.getAttribute("tmp.vnfInfo.vm-count");
 514         if(StringUtils.isNotBlank(vmcount)){
 515         int vmCount = Integer.parseInt(vmcount);
 516         log.info(fn +"vmcount:"+ vmCount);
 517
 518         Vm vm = new Vm();
 519         Vnfcslist vnfc = new Vnfcslist();
 520
 521         if (vmCount > 0) {
 522
 523             for (int i = 0; i < vmCount; i++) {
 524
 525                 vm.setVserverId(ctx.getAttribute("tmp.vnfInfo.vm[" + i + "].vserver-id"));
 526                 String vnfccount = ctx.getAttribute("tmp.vnfInfo.vm[" + i + "].vnfc-count");
 527                 int vnfcCount = Integer.parseInt(vnfccount);
 528
 529                 if (vnfcCount > 0) {
 530                     vnfc.setVnfcName(ctx.getAttribute("tmp.vnfInfo.vm[" + i    + "].vnfc-name"));
 531                     vnfc.setVnfcType(ctx.getAttribute("tmp.vnfInfo.vm[" + i    + "].vnfc-type"));
 532                     vm.setVnfc(vnfc);
 533                 }
 534                 vnfInfo.getVm().add(vm);
 535             }
 536         }
 537         }
 538         InventoryInfo inventoryInfo = new InventoryInfo();
 539         inventoryInfo.setVnfInfo(vnfInfo);
 540         log.info(fn + "Inventory Output:" +inventoryInfo.toString());
 541
 542         return inventoryInfo;
 543
 544     }
 545
 546     private String getFlowSequence() throws IOException {
 547
 548         String sequenceModel = IOUtils.toString(FlowControlNode.class.getClassLoader().getResourceAsStream("sequence.json"), Charset.defaultCharset());
 549
 550         return null;
 551     }
 552
 553
 554 private static Properties loadProperties() throws Exception {
 555     Properties props = new Properties();
 556     String propDir = System.getenv(SDNC_CONFIG_DIR_VAR);
 557     if (propDir == null)
 558         throw new Exception("Cannot find Property file -" + SDNC_CONFIG_DIR_VAR);
 559     String propFile = propDir + FlowControllerConstants.APPC_FLOW_CONTROLLER;
 560     InputStream propStream = new FileInputStream(propFile);
 561     try
 562     {
 563         props.load(propStream);
 564     }
 565     catch (Exception e)
 566     {
 567         throw new Exception("Could not load properties file " + propFile, e);
 568     }
 569     finally
 570     {
 571         try
 572         {
 573             propStream.close();
 574         }
 575         catch (Exception e)
 576         {
 577             log.warn("Could not close FileInputStream", e);
 578         }
 579     }
 580     return props;
 581 }
 582
 583
 584 }