import quincy 17.2.0

[ceph.git] / ceph / src / arrow / java / vector / src / test / java / org / apache / arrow / vector / testing / RandomDataGenerator.java

diff --git a/ceph/src/arrow/java/vector/src/test/java/org/apache/arrow/vector/testing/RandomDataGenerator.java b/ceph/src/arrow/java/vector/src/test/java/org/apache/arrow/vector/testing/RandomDataGenerator.java
new file mode 100644 (file)
index 0000000..4b1094d
--- /dev/null
+++ b/ceph/src/arrow/java/vector/src/test/java/org/apache/arrow/vector/testing/RandomDataGenerator.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.arrow.vector.testing;
+
+import java.util.Random;
+import java.util.function.Supplier;
+
+/**
+ * Utility for generating random data.
+ */
+public class RandomDataGenerator {
+
+  static final Random random = new Random(0);
+
+  public static final Supplier<Byte> TINY_INT_GENERATOR = () -> (byte) random.nextInt();
+
+  public static final Supplier<Short> SMALL_INT_GENERATOR = () -> (short) random.nextInt();
+
+  public static final Supplier<Integer> INT_GENERATOR = () -> random.nextInt();
+
+  public static final Supplier<Long> LONG_GENERATOR = () -> random.nextLong();
+
+  public static final Supplier<Float> FLOAT_GENERATOR = () -> random.nextFloat();
+
+  public static final Supplier<Double> DOUBLE_GENERATOR = () -> random.nextDouble();
+
+  private RandomDataGenerator() {
+  }
+}