Removed patch path since changes have been merged upstream to a different path. Updated README with directions.

Change-Id: Ie419abd2d3d3ef7315de9f607dcd757a78190995
Signed-off-by: Ashlee Young <ashlee@wildernessvoice.com>

2 files changed, 20 insertions, 2 deletions

diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/util/DefaultHashMap.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/util/DefaultHashMap.java
index f9d878ab..d6ddbd56 100644
--- a/framework/src/onos/utils/misc/src/main/java/org/onlab/util/DefaultHashMap.java
+++ b/framework/src/onos/utils/misc/src/main/java/org/onlab/util/DefaultHashMap.java
@@ -21,10 +21,10 @@ import java.util.HashMap;
 /**
  * HashMap that returns a default value for unmapped keys.
  */
-public class DefaultHashMap<K, V> extends HashMap<K, V> {
+public final class DefaultHashMap<K, V> extends HashMap<K, V> {
 
     /** Default value to return when no key binding exists. */
-    protected V defaultValue;
+    protected final V defaultValue;
 
     /**
      * Constructs an empty map with the given default value.
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/util/Tools.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/util/Tools.java
index 1b788145..ffefbfd4 100644
--- a/framework/src/onos/utils/misc/src/main/java/org/onlab/util/Tools.java
+++ b/framework/src/onos/utils/misc/src/main/java/org/onlab/util/Tools.java
@@ -40,6 +40,7 @@ import java.util.Collection;
 import java.util.Dictionary;
 import java.util.List;
 import java.util.Random;
+import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
@@ -144,6 +145,23 @@ public abstract class Tools {
     }
 
     /**
+     * Returns the specified set if the set is not null and not empty;
+     * otherwise throws a not found exception.
+     *
+     * @param item set to check
+     * @param message not found message
+     * @param <T> Set item type
+     * @return item if not null and not empty
+     * @throws org.onlab.util.ItemNotFoundException if set is null or empty
+     */
+    public static <T> Set<T> emptyIsNotFound(Set<T> item, String message) {
+        if (item == null || item.isEmpty()) {
+            throw new ItemNotFoundException(message);
+        }
+        return item;
+    }
+
+    /**
      * Returns the specified item if that item is not null; otherwise throws
      * bad argument exception.
      *