hbase-server/src/test/java/org/apache/hadoop/hbase/HTestConst.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one or more
   3  * contributor license agreements. See the NOTICE file distributed with this
   4  * work for additional information regarding copyright ownership. The ASF
   5  * licenses this file to you under the Apache License, Version 2.0 (the
   6  * "License"); you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  * http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  13  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  14  * License for the specific language governing permissions and limitations
  15  * under the License.
  16  */
  17 package org.apache.hadoop.hbase;
  18
  19 import java.util.Arrays;
  20 import java.util.HashSet;
  21 import java.util.Set;
  22 import java.util.Collections;
  23
  24 import org.apache.hadoop.hbase.util.Bytes;
  25
  26 /**
  27  * Similar to {@link HConstants} but for tests. Also provides some simple
  28  * static utility functions to generate test data.
  29  */
  30 public class HTestConst {
  31
  32   private HTestConst() {
  33   }
  34
  35   public static final String DEFAULT_TABLE_STR = "MyTestTable";
  36   public static final byte[] DEFAULT_TABLE_BYTES = Bytes.toBytes(DEFAULT_TABLE_STR);
  37   public static final TableName DEFAULT_TABLE =
  38       TableName.valueOf(DEFAULT_TABLE_BYTES);
  39
  40   public static final String DEFAULT_CF_STR = "MyDefaultCF";
  41   public static final byte[] DEFAULT_CF_BYTES = Bytes.toBytes(DEFAULT_CF_STR);
  42
  43   public static final Set<String> DEFAULT_CF_STR_SET =
  44       Collections.unmodifiableSet(new HashSet<>(
  45           Arrays.asList(new String[] { DEFAULT_CF_STR })));
  46
  47   public static final String DEFAULT_ROW_STR = "MyTestRow";
  48   public static final byte[] DEFAULT_ROW_BYTES = Bytes.toBytes(DEFAULT_ROW_STR);
  49
  50   public static final String DEFAULT_QUALIFIER_STR = "MyColumnQualifier";
  51   public static final byte[] DEFAULT_QUALIFIER_BYTES = Bytes.toBytes(DEFAULT_QUALIFIER_STR);
  52
  53   public static String DEFAULT_VALUE_STR = "MyTestValue";
  54   public static byte[] DEFAULT_VALUE_BYTES = Bytes.toBytes(DEFAULT_VALUE_STR);
  55
  56   /**
  57    * Generate the given number of unique byte sequences by appending numeric
  58    * suffixes (ASCII representations of decimal numbers).
  59    */
  60   public static byte[][] makeNAscii(byte[] base, int n) {
  61     byte [][] ret = new byte[n][];
  62     for (int i = 0; i < n; i++) {
  63       byte[] tail = Bytes.toBytes(Integer.toString(i));
  64       ret[i] = Bytes.add(base, tail);
  65     }
  66     return ret;
  67   }
  68
  69 }