001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with this
004 * work for additional information regarding copyright ownership. The ASF
005 * licenses this file to you under the Apache License, Version 2.0 (the
006 * "License"); you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
013 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
014 * License for the specific language governing permissions and limitations
015 * under the License.
016 */
017package org.apache.hadoop.hbase;
018
019import java.util.Arrays;
020import java.util.HashSet;
021import java.util.Set;
022import java.util.Collections;
023
024import org.apache.hadoop.hbase.util.Bytes;
025
026/**
027 * Similar to {@link HConstants} but for tests. Also provides some simple
028 * static utility functions to generate test data.
029 */
030public class HTestConst {
031
032  private HTestConst() {
033  }
034
035  public static final String DEFAULT_TABLE_STR = "MyTestTable";
036  public static final byte[] DEFAULT_TABLE_BYTES = Bytes.toBytes(DEFAULT_TABLE_STR);
037  public static final TableName DEFAULT_TABLE =
038      TableName.valueOf(DEFAULT_TABLE_BYTES);
039
040  public static final String DEFAULT_CF_STR = "MyDefaultCF";
041  public static final byte[] DEFAULT_CF_BYTES = Bytes.toBytes(DEFAULT_CF_STR);
042
043  public static final Set<String> DEFAULT_CF_STR_SET =
044      Collections.unmodifiableSet(new HashSet<>(
045          Arrays.asList(new String[] { DEFAULT_CF_STR })));
046
047  public static final String DEFAULT_ROW_STR = "MyTestRow";
048  public static final byte[] DEFAULT_ROW_BYTES = Bytes.toBytes(DEFAULT_ROW_STR);
049
050  public static final String DEFAULT_QUALIFIER_STR = "MyColumnQualifier";
051  public static final byte[] DEFAULT_QUALIFIER_BYTES = Bytes.toBytes(DEFAULT_QUALIFIER_STR);
052
053  public static String DEFAULT_VALUE_STR = "MyTestValue";
054  public static byte[] DEFAULT_VALUE_BYTES = Bytes.toBytes(DEFAULT_VALUE_STR);
055
056  /**
057   * Generate the given number of unique byte sequences by appending numeric
058   * suffixes (ASCII representations of decimal numbers).
059   */
060  public static byte[][] makeNAscii(byte[] base, int n) {
061    byte [][] ret = new byte[n][];
062    for (int i = 0; i < n; i++) {
063      byte[] tail = Bytes.toBytes(Integer.toString(i));
064      ret[i] = Bytes.add(base, tail);
065    }
066    return ret;
067  }
068
069}