sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/ReserveNodeExecutor.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openECOMP : SDN-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights
   6  *                                              reserved.
   7  * ================================================================================
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  * ============LICENSE_END=========================================================
  20  */
  21
  22 package org.openecomp.sdnc.sli.provider;
  23
  24 import org.openecomp.sdnc.sli.SvcLogicContext;
  25 import org.openecomp.sdnc.sli.SvcLogicException;
  26 import org.openecomp.sdnc.sli.SvcLogicExpression;
  27 import org.openecomp.sdnc.sli.SvcLogicNode;
  28 import org.openecomp.sdnc.sli.SvcLogicResource;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class ReserveNodeExecutor extends SvcLogicNodeExecutor {
  33
  34         private static final Logger LOG = LoggerFactory
  35                         .getLogger(ReserveNodeExecutor.class);
  36
  37         @Override
  38         public SvcLogicNode execute(SvcLogicServiceImpl svc, SvcLogicNode node,
  39                         SvcLogicContext ctx) throws SvcLogicException {
  40
  41                 String plugin = SvcLogicExpressionResolver.evaluate(
  42                                 node.getAttribute("plugin"), node, ctx);
  43                 String resourceType = SvcLogicExpressionResolver.evaluate(
  44                                 node.getAttribute("resource"), node, ctx);
  45                 String key = SvcLogicExpressionResolver.evaluateAsKey(
  46                                 node.getAttribute("key"), node, ctx);
  47                 String pfx = SvcLogicExpressionResolver.evaluate(node.getAttribute("pfx"),node,ctx);
  48
  49
  50         SvcLogicExpression selectExpr = node.getAttribute("select");
  51         String select = null;
  52
  53         if (selectExpr != null)
  54         {
  55                 select = SvcLogicExpressionResolver.evaluateAsKey(selectExpr, node, ctx);
  56         }
  57
  58                 String outValue = "failure";
  59
  60                 if (LOG.isDebugEnabled()) {
  61                         LOG.debug("reserve node encountered - looking for resource class "
  62                                         + plugin);
  63                 }
  64
  65
  66
  67         SvcLogicResource resourcePlugin = getSvcLogicResource(plugin);
  68
  69                         if (resourcePlugin != null) {
  70
  71                                 try {
  72                                         switch (resourcePlugin.reserve(resourceType, select, key, pfx, ctx)) {
  73                                         case SUCCESS:
  74                                                 outValue = "success";
  75                                                 break;
  76                                         case NOT_FOUND:
  77                                                 outValue = "not-found";
  78                                                 break;
  79                                         case FAILURE:
  80                                         default:
  81                                                 outValue = "failure";
  82                                         }
  83                                 } catch (SvcLogicException e) {
  84                                         LOG.error("Caught exception from resource plugin", e);
  85                                         outValue = "failure";
  86                                 }
  87                         } else {
  88                                 LOG.warn("Could not find SvcLogicResource object for plugin "
  89                                                 + plugin);
  90                         }
  91
  92                 SvcLogicNode nextNode = node.getOutcomeValue(outValue);
  93                 if (nextNode != null) {
  94                         if (LOG.isDebugEnabled()) {
  95                                 LOG.debug("about to execute " + outValue + " branch");
  96                         }
  97                         return (nextNode);
  98                 }
  99
 100                 nextNode = node.getOutcomeValue("Other");
 101                 if (nextNode != null) {
 102                         if (LOG.isDebugEnabled()) {
 103                                 LOG.debug("about to execute Other branch");
 104                         }
 105                 } else {
 106                         if (LOG.isDebugEnabled()) {
 107
 108                                 LOG.debug("no "+outValue+" or Other branch found");
 109                         }
 110                 }
 111                 return (nextNode);
 112         }
 113
 114 }