util/sketch/Utils.java

0001 /*
0002  * Licensed to the Apache Software Foundation (ASF) under one or more
0003  * contributor license agreements.  See the NOTICE file distributed with
0004  * this work for additional information regarding copyright ownership.
0005  * The ASF licenses this file to You under the Apache License, Version 2.0
0006  * (the "License"); you may not use this file except in compliance with
0007  * the License.  You may obtain a copy of the License at
0008  *
0009  *    http://www.apache.org/licenses/LICENSE-2.0
0010  *
0011  * Unless required by applicable law or agreed to in writing, software
0012  * distributed under the License is distributed on an "AS IS" BASIS,
0013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0014  * See the License for the specific language governing permissions and
0015  * limitations under the License.
0016  */
0017
0018 package org.apache.spark.util.sketch;
0019
0020 import java.nio.charset.StandardCharsets;
0021
0022 class Utils {
0023   public static byte[] getBytesFromUTF8String(String str) {
0024     return str.getBytes(StandardCharsets.UTF_8);
0025   }
0026
0027   public static long integralToLong(Object i) {
0028     long longValue;
0029
0030     if (i instanceof Long) {
0031       longValue = (Long) i;
0032     } else if (i instanceof Integer) {
0033       longValue = ((Integer) i).longValue();
0034     } else if (i instanceof Short) {
0035       longValue = ((Short) i).longValue();
0036     } else if (i instanceof Byte) {
0037       longValue = ((Byte) i).longValue();
0038     } else {
0039       throw new IllegalArgumentException("Unsupported data type " + i.getClass().getName());
0040     }
0041
0042     return longValue;
0043   }
0044 }