NormalizedNode serialization using protocol buffer

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

diff --git a/opendaylight/md-sal/sal-protocolbuffer-encoding/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/NodeIdentifierFactory.java b/opendaylight/md-sal/sal-protocolbuffer-encoding/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/NodeIdentifierFactory.java
new file mode 100644 (file)
index 0000000..3250fad
--- /dev/null
+++ b/opendaylight/md-sal/sal-protocolbuffer-encoding/src/main/java/org/opendaylight/controller/cluster/datastore/node/utils/NodeIdentifierFactory.java
@@ -0,0 +1,44 @@
+package org.opendaylight.controller.cluster.datastore.node.utils;
+
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class NodeIdentifierFactory {
+    private static final Map<String, InstanceIdentifier.PathArgument> cache = new HashMap<>();
+    public static InstanceIdentifier.PathArgument getArgument(String id){
+        InstanceIdentifier.PathArgument value = cache.get(id);
+        if(value == null){
+            synchronized (cache){
+                value = cache.get(id);
+                if(value == null) {
+                    value = createPathArgument(id);
+                    cache.put(id, value);
+                }
+            }
+        }
+        return value;
+    }
+
+    private static InstanceIdentifier.PathArgument createPathArgument(String id){
+        final NodeIdentifierWithPredicatesGenerator
+            nodeIdentifierWithPredicatesGenerator = new NodeIdentifierWithPredicatesGenerator(id);
+        if(nodeIdentifierWithPredicatesGenerator.matches()){
+            return nodeIdentifierWithPredicatesGenerator.getPathArgument();
+        }
+
+        final NodeIdentifierWithValueGenerator
+            nodeWithValueGenerator = new NodeIdentifierWithValueGenerator(id);
+        if(nodeWithValueGenerator.matches()){
+            return nodeWithValueGenerator.getPathArgument();
+        }
+
+        final AugmentationIdentifierGenerator augmentationIdentifierGenerator = new AugmentationIdentifierGenerator(id);
+        if(augmentationIdentifierGenerator.matches()){
+            return augmentationIdentifierGenerator.getPathArgument();
+        }
+
+        return new NodeIdentifierGenerator(id).getArgument();
+    }
+}