sli/provider/src/main/java/org/onap/ccsdk/sli/core/sli/provider/UpdateNodeExecutor.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : CCSDK
   4  * ================================================================================
   5  * Copyright (C) 2017 ONAP
   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.ccsdk.sli.core.sli.provider;
  22
  23 import java.util.HashMap;
  24 import java.util.Iterator;
  25 import java.util.Map;
  26 import java.util.Set;
  27
  28 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  29 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
  30 import org.onap.ccsdk.sli.core.sli.SvcLogicExpression;
  31 import org.onap.ccsdk.sli.core.sli.SvcLogicNode;
  32 import org.onap.ccsdk.sli.core.sli.SvcLogicResource;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class UpdateNodeExecutor extends SvcLogicNodeExecutor {
  37
  38         private static final Logger LOG = LoggerFactory
  39                         .getLogger(UpdateNodeExecutor.class);
  40
  41         @Override
  42         public SvcLogicNode execute(SvcLogicServiceImpl svc, SvcLogicNode node,
  43                         SvcLogicContext ctx) throws SvcLogicException {
  44
  45                 String plugin = SvcLogicExpressionResolver.evaluate(
  46                                 node.getAttribute("plugin"), node, ctx);
  47                 String resourceType = SvcLogicExpressionResolver.evaluate(
  48                                 node.getAttribute("resource"), node, ctx);
  49                 String key = SvcLogicExpressionResolver.evaluateAsKey(
  50                                 node.getAttribute("key"), node, ctx);
  51                 String pfx = SvcLogicExpressionResolver.evaluate(
  52                                 node.getAttribute("pfx"), node, ctx);
  53
  54
  55                 Map<String, String> parmMap = new HashMap<String, String>();
  56
  57                 Set<Map.Entry<String, SvcLogicExpression>> parmSet = node
  58                                 .getParameterSet();
  59                 boolean hasParms = false;
  60
  61                 for (Iterator<Map.Entry<String, SvcLogicExpression>> iter = parmSet
  62                                 .iterator(); iter.hasNext();) {
  63                         hasParms = true;
  64                         Map.Entry<String, SvcLogicExpression> curEnt = iter.next();
  65                         String curName = curEnt.getKey();
  66                         SvcLogicExpression curExpr = curEnt.getValue();
  67                         if (curExpr != null) {
  68                                 String curExprValue = SvcLogicExpressionResolver.evaluate(
  69                                                 curExpr, node, ctx);
  70
  71                                 LOG.debug("Parameter " + curName + " = "
  72                                                 + curExpr.asParsedExpr() + " resolves to "
  73                                                 + curExprValue);
  74
  75                                 parmMap.put(curName, curExprValue);
  76                         }
  77                 }
  78
  79                 String outValue = "failure";
  80
  81                 if (LOG.isDebugEnabled()) {
  82                         LOG.debug("save node encountered - looking for resource class "
  83                                         + plugin);
  84                 }
  85
  86
  87         SvcLogicResource resourcePlugin = getSvcLogicResource(plugin);
  88
  89
  90                         if (resourcePlugin != null) {
  91
  92                                 try {
  93                                         switch (resourcePlugin.update(resourceType, key,
  94                                                         parmMap, pfx, ctx)) {
  95                                         case SUCCESS:
  96                                                 outValue = "success";
  97                                                 break;
  98                                         case NOT_FOUND:
  99                                                 outValue = "not-found";
 100                                                 break;
 101                                         case FAILURE:
 102                                         default:
 103                                                 outValue = "failure";
 104                                         }
 105                                 } catch (SvcLogicException e) {
 106                                         LOG.error("Caught exception from resource plugin", e);
 107                                         outValue = "failure";
 108                                 }
 109                         } else {
 110                                 LOG.warn("Could not find SvcLogicResource object for plugin "
 111                                                 + plugin);
 112                         }
 113
 114                 SvcLogicNode nextNode = node.getOutcomeValue(outValue);
 115                 if (nextNode != null) {
 116                         if (LOG.isDebugEnabled()) {
 117                                 LOG.debug("about to execute " + outValue + " branch");
 118                         }
 119                         return (nextNode);
 120                 }
 121
 122                 nextNode = node.getOutcomeValue("Other");
 123                 if (nextNode != null) {
 124                         if (LOG.isDebugEnabled()) {
 125                                 LOG.debug("about to execute Other branch");
 126                         }
 127                 } else {
 128                         if (LOG.isDebugEnabled()) {
 129                                 LOG.debug("no "+outValue+" or Other branch found");
 130                         }
 131                 }
 132                 return (nextNode);
 133         }
 134
 135 }