X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-dom-broker%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fmd%2Fsal%2Fdom%2Fstore%2Fimpl%2FStoreUtils.java;h=0f77ac504a3f5a647f9a184e88b7ecc569332c6f;hb=a71bb09b4111391921854c2776edc746108c53c1;hp=02c2a4fa06042e2984745183262a7d053411157a;hpb=d79971d4ae2f03de51aa5e884eeaeb62e3af227c;p=controller.git

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 02c2a4fa06..0f77ac504a 100644
--- 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
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
 package org.opendaylight.controller.md.sal.dom.store.impl;
 
 import java.util.Collections;
@@ -24,7 +31,6 @@ import com.google.common.primitives.UnsignedLong;
 public final class StoreUtils {
 
     private final static Function<Identifiable<Object>, Object> EXTRACT_IDENTIFIER = new Function<Identifiable<Object>, Object>() {
-
         @Override
         public Object apply(final Identifiable<Object> input) {
             return input.getIdentifier();
@@ -45,6 +51,11 @@ public final class StoreUtils {
         return new InitialDataChangeEvent(path, data.getData());
     }
 
+    /*
+     * Suppressing warnings here allows us to fool the compiler enough
+     * such that we can reuse a single function for all applicable types
+     * and present it in a type-safe manner to our users.
+     */
     @SuppressWarnings({ "unchecked", "rawtypes" })
     public static <V> Function<Identifiable<V>, V> identifierExtractor() {
         return (Function) EXTRACT_IDENTIFIER;
@@ -90,7 +101,6 @@ public final class StoreUtils {
         public NormalizedNode<?, ?> getUpdatedSubtree() {
             return data;
         }
-
     }
 
     public static <V> Set<V> toIdentifierSet(final Iterable<? extends Identifiable<V>> children) {
@@ -101,7 +111,6 @@ public final class StoreUtils {
         StringBuilder builder = new StringBuilder();
         toStringTree(builder, metaNode, 0);
         return builder.toString();
-
     }
 
     private static void toStringTree(final StringBuilder builder, final StoreMetadataNode metaNode, final int offset) {
@@ -109,15 +118,15 @@ public final class StoreUtils {
         builder.append(prefix).append(toStringTree(metaNode.getIdentifier()));
         NormalizedNode<?, ?> dataNode = metaNode.getData();
         if (dataNode instanceof NormalizedNodeContainer<?, ?, ?>) {
-            builder.append(" {").append("\n");
+            builder.append(" {\n");
             for (StoreMetadataNode child : metaNode.getChildren()) {
                 toStringTree(builder, child, offset + 4);
             }
-            builder.append(prefix).append("}");
+            builder.append(prefix).append('}');
         } else {
-            builder.append(" ").append(dataNode.getValue());
+            builder.append(' ').append(dataNode.getValue());
         }
-        builder.append("\n");
+        builder.append('\n');
     }
 
     private static String toStringTree(final PathArgument identifier) {