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authorAshlee Young <ashlee@wildernessvoice.com>2015-11-12 16:20:47 -0800
committerAshlee Young <ashlee@wildernessvoice.com>2015-11-12 16:20:47 -0800
commit3455cb5df0de8612d074198b55e1ecec8a8db123 (patch)
treea27ea5bcccee4f3705d9f9e512353537aaac4c58 /framework/src/onos/utils
parent03974824abae35128f53f5a4af9a4ed8f573601a (diff)
ONOS update to commit id "761f0040f3ce4f33a38377c7f737145b603aa334
Change-Id: Ib76e3935c50fc275f803f17cffbc511e0a91f5d1 Signed-off-by: Ashlee Young <ashlee@wildernessvoice.com>
Diffstat (limited to 'framework/src/onos/utils')
-rw-r--r--framework/src/onos/utils/misc/src/main/java/org/onlab/util/DefaultHashMap.java42
-rw-r--r--framework/src/onos/utils/misc/src/test/java/org/onlab/util/DefaultHashMapTest.java81
2 files changed, 123 insertions, 0 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
new file mode 100644
index 00000000..f9d878ab
--- /dev/null
+++ b/framework/src/onos/utils/misc/src/main/java/org/onlab/util/DefaultHashMap.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onlab.util;
+
+import java.util.HashMap;
+
+/**
+ * HashMap that returns a default value for unmapped keys.
+ */
+public class DefaultHashMap<K, V> extends HashMap<K, V> {
+
+ /** Default value to return when no key binding exists. */
+ protected V defaultValue;
+
+ /**
+ * Constructs an empty map with the given default value.
+ *
+ * @param defaultValue the default value
+ */
+ public DefaultHashMap(V defaultValue) {
+ this.defaultValue = defaultValue;
+ }
+
+ @Override
+ public V get(Object k) {
+ return containsKey(k) ? super.get(k) : defaultValue;
+ }
+} \ No newline at end of file
diff --git a/framework/src/onos/utils/misc/src/test/java/org/onlab/util/DefaultHashMapTest.java b/framework/src/onos/utils/misc/src/test/java/org/onlab/util/DefaultHashMapTest.java
new file mode 100644
index 00000000..db6b5fb7
--- /dev/null
+++ b/framework/src/onos/utils/misc/src/test/java/org/onlab/util/DefaultHashMapTest.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onlab.util;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Unit tests for {@link DefaultHashMap}.
+ */
+public class DefaultHashMapTest {
+
+ private static final String ONE = "one";
+ private static final String TWO = "two";
+ private static final String THREE = "three";
+ private static final String FOUR = "four";
+
+ private static final String ALPHA = "Alpha";
+ private static final String BETA = "Beta";
+ private static final String OMEGA = "Omega";
+
+ private DefaultHashMap<String, Integer> map;
+ private DefaultHashMap<String, String> chartis;
+
+ private void loadMap() {
+ map.put(ONE, 1);
+ map.put(TWO, 2);
+ }
+
+ private void fortioCharti() {
+ chartis.put(ONE, ALPHA);
+ chartis.put(TWO, BETA);
+ }
+
+ @Test
+ public void nullDefaultIsAllowed() {
+ // but makes this class behave no different than HashMap
+ map = new DefaultHashMap<>(null);
+ loadMap();
+ assertEquals("missing 1", 1, (int) map.get(ONE));
+ assertEquals("missing 2", 2, (int) map.get(TWO));
+ assertEquals("three?", null, map.get(THREE));
+ assertEquals("four?", null, map.get(FOUR));
+ }
+
+ @Test
+ public void defaultToFive() {
+ map = new DefaultHashMap<>(5);
+ loadMap();
+ assertEquals("missing 1", 1, (int) map.get(ONE));
+ assertEquals("missing 2", 2, (int) map.get(TWO));
+ assertEquals("three?", 5, (int) map.get(THREE));
+ assertEquals("four?", 5, (int) map.get(FOUR));
+ }
+
+ @Test
+ public void defaultToOmega() {
+ chartis = new DefaultHashMap<>(OMEGA);
+ fortioCharti();
+ assertEquals("missing 1", ALPHA, chartis.get(ONE));
+ assertEquals("missing 2", BETA, chartis.get(TWO));
+ assertEquals("three?", OMEGA, chartis.get(THREE));
+ assertEquals("four?", OMEGA, chartis.get(FOUR));
+ }
+
+}