opendaylight/md-sal/sal-protocolbuffer-encoding/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/NodeIdentifierFactory.java

   1 package org.opendaylight.controller.cluster.datastore.node.utils;
   2
   3 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
   4
   5 import java.util.HashMap;
   6 import java.util.Map;
   7
   8 public class NodeIdentifierFactory {
   9     private static final Map<String, YangInstanceIdentifier.PathArgument> cache = new HashMap<>();
  10     public static YangInstanceIdentifier.PathArgument getArgument(String id){
  11         YangInstanceIdentifier.PathArgument value = cache.get(id);
  12         if(value == null){
  13             synchronized (cache){
  14                 value = cache.get(id);
  15                 if(value == null) {
  16                     value = createPathArgument(id);
  17                     cache.put(id, value);
  18                 }
  19             }
  20         }
  21         return value;
  22     }
  23
  24     private static YangInstanceIdentifier.PathArgument createPathArgument(String id){
  25         final NodeIdentifierWithPredicatesGenerator
  26             nodeIdentifierWithPredicatesGenerator = new NodeIdentifierWithPredicatesGenerator(id);
  27         if(nodeIdentifierWithPredicatesGenerator.matches()){
  28             return nodeIdentifierWithPredicatesGenerator.getPathArgument();
  29         }
  30
  31         final NodeIdentifierWithValueGenerator
  32             nodeWithValueGenerator = new NodeIdentifierWithValueGenerator(id);
  33         if(nodeWithValueGenerator.matches()){
  34             return nodeWithValueGenerator.getPathArgument();
  35         }
  36
  37         final AugmentationIdentifierGenerator augmentationIdentifierGenerator = new AugmentationIdentifierGenerator(id);
  38         if(augmentationIdentifierGenerator.matches()){
  39             return augmentationIdentifierGenerator.getPathArgument();
  40         }
  41
  42         return new NodeIdentifierGenerator(id).getArgument();
  43     }
  44 }