Merge remote-tracking branch 'origin/master'

src/test/java/net/openhft/chronicle/map/DefaultValueTest.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2014 Higher Frequency Trading http://www.higherfrequencytrading.com
+ *
+ * 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 net.openhft.chronicle.map;
+
+import net.openhft.lang.model.DataValueClasses;
+import net.openhft.lang.values.IntValue;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import static org.testng.Assert.assertEquals;
+
+public class DefaultValueTest {
+
+    @Test
+    public void test() throws IllegalAccessException, InstantiationException, IOException {
+        File file = Builder.getPersistenceFile();
+        try {
+
+            ArrayList<Integer> defaultValue = new ArrayList<Integer>();
+            defaultValue.add(42);
+            try (ChronicleMap<String, List<Integer>> map = ChronicleMapBuilder
+                    .of(String.class, (Class<List<Integer>>) ((Class) List.class))
+                    .defaultValue(defaultValue)
+                    .create(file)) {
+
+                assertEquals(defaultValue, map.get("a"));
+                assertEquals(1, map.size());
+
+                map.put("b", Arrays.asList(1, 2));
+                assertEquals(Arrays.asList(1, 2), map.get("b"));
+            }
+
+            try (ChronicleMap<String, List<Integer>> map = ChronicleMapBuilder
+                    .of(String.class, (Class<List<Integer>>) ((Class) List.class)).create(file)) {
+                assertEquals(defaultValue, map.get("c"));
+            }
+        } finally {
+            file.delete();
+        }
+    }
+}

src/test/java/net/openhft/chronicle/map/example/WordCount.java

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+package net.openhft.chronicle.map.example;
+
+import net.openhft.chronicle.map.ChronicleMap;
+import net.openhft.chronicle.map.ChronicleMapBuilder;
+import net.openhft.lang.model.Byteable;
+import net.openhft.lang.values.IntValue;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Arrays;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+public class WordCount {
+
+    static String[] words;
+    static int expectedSize;
+    static {
+        try {
+            // english version of war and peace ->  ascii
+            String fullText =
+                    new String(Files.readAllBytes(Paths.get("war_and_peace.txt")), UTF_8);
+            words = fullText.split("\\s+");
+            expectedSize = (int) Arrays.stream(words).distinct().count();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    static interface ByteableIntValue extends IntValue, Byteable {}
+
+    public int chronicleMap() throws IOException {
+        ChronicleMap<String, ByteableIntValue> map =
+                ChronicleMapBuilder.of(String.class, ByteableIntValue.class)
+                .entrySize(16)
+                .actualSegments(1)
+                .entries(expectedSize)
+                .create();
+        ByteableIntValue v = map.acquireUsing("a", null);
+        for (String word : words) {
+            map.acquireUsing(word, v).addValue(1);
+        }
+        return map.acquireUsing("a", v).getValue();
+    }
+}