Bug 499: Improved data change listener tree management

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / md / sal / dom / store / impl / StoreUtils.java

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java
index 4ad941ae9537b243e75456bc6e04d32161f8f246..02c2a4fa06042e2984745183262a7d053411157a 100644 (file)
--- a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/StoreUtils.java
@@ -8,10 +8,14 @@ import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
 import org.opendaylight.controller.md.sal.dom.store.impl.tree.StoreMetadataNode;
 import org.opendaylight.yangtools.concepts.Identifiable;
 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.AugmentationIdentifier;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifierWithPredicates;
 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
 
 import com.google.common.base.Function;
+import com.google.common.base.Strings;
 import com.google.common.collect.FluentIterable;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
@@ -41,6 +45,11 @@ public final class StoreUtils {
         return new InitialDataChangeEvent(path, data.getData());
     }
 
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public static <V> Function<Identifiable<V>, V> identifierExtractor() {
+        return (Function) EXTRACT_IDENTIFIER;
+    }
+
     private static final class InitialDataChangeEvent implements
             AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> {
 
@@ -84,13 +93,42 @@ public final class StoreUtils {
 
     }
 
-    @SuppressWarnings({ "unchecked", "rawtypes" })
-    public static <V> Function<Identifiable<V>,V> identifierExtractor() {
-        return (Function) EXTRACT_IDENTIFIER;
+    public static <V> Set<V> toIdentifierSet(final Iterable<? extends Identifiable<V>> children) {
+        return FluentIterable.from(children).transform(StoreUtils.<V> identifierExtractor()).toSet();
     }
 
-    public static <V> Set<V> toIdentifierSet(final Iterable<? extends Identifiable<V>> children) {
-        return FluentIterable.from(children).transform(StoreUtils.<V>identifierExtractor()).toSet();
+    public static String toStringTree(final StoreMetadataNode metaNode) {
+        StringBuilder builder = new StringBuilder();
+        toStringTree(builder, metaNode, 0);
+        return builder.toString();
+
     }
 
+    private static void toStringTree(final StringBuilder builder, final StoreMetadataNode metaNode, final int offset) {
+        String prefix = Strings.repeat(" ", offset);
+        builder.append(prefix).append(toStringTree(metaNode.getIdentifier()));
+        NormalizedNode<?, ?> dataNode = metaNode.getData();
+        if (dataNode instanceof NormalizedNodeContainer<?, ?, ?>) {
+            builder.append(" {").append("\n");
+            for (StoreMetadataNode child : metaNode.getChildren()) {
+                toStringTree(builder, child, offset + 4);
+            }
+            builder.append(prefix).append("}");
+        } else {
+            builder.append(" ").append(dataNode.getValue());
+        }
+        builder.append("\n");
+    }
+
+    private static String toStringTree(final PathArgument identifier) {
+        if (identifier instanceof NodeIdentifierWithPredicates) {
+            StringBuilder builder = new StringBuilder();
+            builder.append(identifier.getNodeType().getLocalName());
+            builder.append(((NodeIdentifierWithPredicates) identifier).getKeyValues().values());
+            return builder.toString();
+        } else if (identifier instanceof AugmentationIdentifier) {
+            return "augmentation";
+        }
+        return identifier.getNodeType().getLocalName();
+    }
 }