Package org.apache.hadoop.hbase.util

Class HFileTestUtil

java.lang.Object

org.apache.hadoop.hbase.util.HFileTestUtil

public class HFileTestUtil
extends Object

Utility class for HFile-related testing.

Field Summary

Fields

Modifier and Type	Field	Description
static final byte[][]	DEFAULT_COLUMN_FAMILIES	Column families used by the test
static byte[]	DEFAULT_COLUMN_FAMILY	Column family used by the test
static final String	OPT_DATA_BLOCK_ENCODING

Constructor Summary

Constructors

Constructor	Description
HFileTestUtil()

Method Summary

Modifier and Type	Method	Description
static void	createHFile(org.apache.hadoop.conf.Configuration configuration, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, byte[] family, byte[] qualifier, byte[] startKey, byte[] endKey, int numRows)	Create an HFile with the given number of rows between a given start key and end key @ family:qualifier.
static void	createHFile(org.apache.hadoop.conf.Configuration configuration, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.hbase.io.encoding.DataBlockEncoding encoding, byte[] family, byte[] qualifier, byte[] startKey, byte[] endKey, int numRows, boolean withTag)	Create an HFile with the given number of rows between a given start key and end key @ family:qualifier.
static void	createHFileWithDataBlockEncoding(org.apache.hadoop.conf.Configuration configuration, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.hbase.io.encoding.DataBlockEncoding encoding, byte[] family, byte[] qualifier, byte[] startKey, byte[] endKey, int numRows)	Create an HFile with the given number of rows between a given start key and end key @ family:qualifier.
static void	createHFileWithTags(org.apache.hadoop.conf.Configuration configuration, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, byte[] family, byte[] qualifier, byte[] startKey, byte[] endKey, int numRows)	Create an HFile with the given number of rows between a given start key and end key @ family:qualifier.
static void	verifyTags(org.apache.hadoop.hbase.client.Table table)	This verifies that each cell has a tag that is equal to its rowkey name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

OPT_DATA_BLOCK_ENCODING

public static final String OPT_DATA_BLOCK_ENCODING

DEFAULT_COLUMN_FAMILY

public static byte[] DEFAULT_COLUMN_FAMILY

Column family used by the test

DEFAULT_COLUMN_FAMILIES

public static final byte[][] DEFAULT_COLUMN_FAMILIES

Column families used by the test

Constructor Details

HFileTestUtil

public HFileTestUtil()

Method Details

createHFile

public static void createHFile(org.apache.hadoop.conf.Configuration configuration,
 org.apache.hadoop.fs.FileSystem fs,
 org.apache.hadoop.fs.Path path,
 byte[] family,
 byte[] qualifier,
 byte[] startKey,
 byte[] endKey,
 int numRows)
                        throws IOException

Create an HFile with the given number of rows between a given start key and end key @ family:qualifier. The value will be the key value. This file will not have tags.

Throws:

IOException

createHFileWithDataBlockEncoding

public static void createHFileWithDataBlockEncoding(org.apache.hadoop.conf.Configuration configuration,
 org.apache.hadoop.fs.FileSystem fs,
 org.apache.hadoop.fs.Path path,
 org.apache.hadoop.hbase.io.encoding.DataBlockEncoding encoding,
 byte[] family,
 byte[] qualifier,
 byte[] startKey,
 byte[] endKey,
 int numRows)
                                             throws IOException

Create an HFile with the given number of rows between a given start key and end key @ family:qualifier. The value will be the key value. This file will use certain data block encoding algorithm.

Throws:

IOException

createHFileWithTags

public static void createHFileWithTags(org.apache.hadoop.conf.Configuration configuration,
 org.apache.hadoop.fs.FileSystem fs,
 org.apache.hadoop.fs.Path path,
 byte[] family,
 byte[] qualifier,
 byte[] startKey,
 byte[] endKey,
 int numRows)
                                throws IOException

Create an HFile with the given number of rows between a given start key and end key @ family:qualifier. The value will be the key value. This cells will also have a tag whose value is the key.

Throws:

IOException

createHFile

public static void createHFile(org.apache.hadoop.conf.Configuration configuration,
 org.apache.hadoop.fs.FileSystem fs,
 org.apache.hadoop.fs.Path path,
 org.apache.hadoop.hbase.io.encoding.DataBlockEncoding encoding,
 byte[] family,
 byte[] qualifier,
 byte[] startKey,
 byte[] endKey,
 int numRows,
 boolean withTag)
                        throws IOException

Create an HFile with the given number of rows between a given start key and end key @ family:qualifier. If withTag is true, we add the rowKey as the tag value for tagtype MOB_TABLE_NAME_TAG_TYPE

Throws:

IOException

verifyTags

public static void verifyTags(org.apache.hadoop.hbase.client.Table table)
                       throws IOException

This verifies that each cell has a tag that is equal to its rowkey name. For this to work the hbase instance must have HConstants.RPC_CODEC_CONF_KEY set to KeyValueCodecWithTags.class.getCanonicalName());

Parameters:

table - table containing tagged cells

Throws:

IOException - if problems reading table