am bf661bba: am eb59a87a: Merge "Add CollectionUtils class to create generic collection easily" into jb-mr1-dev

* commit 'bf661bbab05eb9ecbfa7b3b9a82a7d41e795ed4a':
  Add CollectionUtils class to create generic collection easily

1 files changed, 89 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/CollectionUtils.java b/java/src/com/android/inputmethod/latin/CollectionUtils.java
new file mode 100644
index 000000000..789b79a0a
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/CollectionUtils.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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 com.android.inputmethod.latin;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+public class CollectionUtils {
+    private CollectionUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    public static <K,V> HashMap<K,V> newHashMap() {
+        return new HashMap<K,V>();
+    }
+
+    public static <K,V> TreeMap<K,V> newTreeMap() {
+        return new TreeMap<K,V>();
+    }
+
+    public static <K, V> Map<K,V> newSynchronizedTreeMap() {
+        final TreeMap<K,V> treeMap = newTreeMap();
+        return Collections.synchronizedMap(treeMap);
+    }
+
+    public static <K,V> ConcurrentHashMap<K,V> newConcurrentHashMap() {
+        return new ConcurrentHashMap<K,V>();
+    }
+
+    public static <E> HashSet<E> newHashSet() {
+        return new HashSet<E>();
+    }
+
+    public static <E> TreeSet<E> newTreeSet() {
+        return new TreeSet<E>();
+    }
+
+    public static <E> ArrayList<E> newArrayList() {
+        return new ArrayList<E>();
+    }
+
+    public static <E> ArrayList<E> newArrayList(final int initialCapacity) {
+        return new ArrayList<E>(initialCapacity);
+    }
+
+    public static <E> ArrayList<E> newArrayList(final Collection<E> collection) {
+        return new ArrayList<E>(collection);
+    }
+
+    public static <E> LinkedList<E> newLinkedList() {
+        return new LinkedList<E>();
+    }
+
+    public static <E> CopyOnWriteArrayList<E> newCopyOnWriteArrayList() {
+        return new CopyOnWriteArrayList<E>();
+    }
+
+    public static <E> CopyOnWriteArrayList<E> newCopyOnWriteArrayList(
+            final Collection<E> collection) {
+        return new CopyOnWriteArrayList<E>(collection);
+    }
+
+    public static <E> CopyOnWriteArrayList<E> newCopyOnWriteArrayList(final E[] array) {
+        return new CopyOnWriteArrayList<E>(array);
+    }
+}