HLogPrettyPrinter (Apache HBase 1.2.12 API)

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java.lang.Object
- org.apache.hadoop.hbase.wal.WALPrettyPrinter
- - org.apache.hadoop.hbase.regionserver.wal.HLogPrettyPrinter

Deprecated.
use the "hbase wal" command
```
@InterfaceAudience.LimitedPrivate(value="Tools")
@InterfaceStability.Evolving
@Deprecated
public class HLogPrettyPrinter
extends WALPrettyPrinter
```
HLogPrettyPrinter prints the contents of a given HLog with a variety of options affecting formatting and extent of content. It targets two usage cases: pretty printing for ease of debugging directly by humans, and JSON output for consumption by monitoring and/or maintenance scripts. It can filter by row, region, or sequence id. It can also toggle output of values.

Constructor Summary

Constructors
Constructor and Description
`HLogPrettyPrinter()` Deprecated. Basic constructor that simply initializes values to reasonable defaults.
`HLogPrettyPrinter(boolean outputValues, boolean outputJSON, long sequence, String region, String row, boolean persistentOutput, PrintStream out)` Deprecated. Fully specified constructor.

Method Summary

Methods
Modifier and Type Method and Description

static void main(String[] args)
Deprecated.
- Methods inherited from class org.apache.hadoop.hbase.wal.WALPrettyPrinter
  beginPersistentOutput, disableJSON, disableValues, enableJSON, enableValues, endPersistentOutput, processFile, run, setPosition, setRegionFilter, setRowFilter, setSequenceFilter
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - HLogPrettyPrinter
```
public HLogPrettyPrinter()
```
    Deprecated.
    
    Basic constructor that simply initializes values to reasonable defaults.
  - HLogPrettyPrinter
```
public HLogPrettyPrinter(boolean outputValues,
                 boolean outputJSON,
                 long sequence,
                 String region,
                 String row,
                 boolean persistentOutput,
                 PrintStream out)
```
    Deprecated.
    
    Fully specified constructor.
    
    Parameters:
    outputValues - when true, enables output of values along with other log information
    outputJSON - when true, enables output in JSON format rather than a "pretty string"
    sequence - when nonnegative, serves as a filter; only log entries with this sequence id will be printed
    region - when not null, serves as a filter; only log entries from this region will be printed
    row - when not null, serves as a filter; only log entries from this row will be printed
    persistentOutput - keeps a single list running for multiple files. if enabled, the endPersistentOutput() method must be used!
    out - Specifies an alternative to stdout for the destination of this PrettyPrinter's output.
- Method Detail
  - main
```
public static void main(String[] args)
                 throws IOException
```
    Deprecated.
    
    Throws:
    
    IOException

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