TableDebug

public class TableDebug

A debugging utility that prints the contents of tables and columns.

Obtain an instance with get() or builder(); by default the output goes to the destination named by the {@value OUTPUT_STREAM} system property, or standard error if it is not set. This is slow and is meant for debugging only.

Field Summary

OUTPUT_STREAM

Specify one of -Dai.rapids.cudf.debug.output=stderr to print directly to standard error (default) -Dai.rapids.cudf.debug.output=stdout to print directly to standard output -Dai.rapids.cudf.debug.output=log[_level] to redirect to a logging subsystem that can further be configured.

Method Summary

builder()
debug(String name, ColumnView col)	Print the contents of a column.
debug(String name, HostColumnVectorCore hostCol)	Print the contents of a column.
debug(String name, Table table)	Print the contents of a table.
get()

Static Fields

public static final String OUTPUT_STREAM = "ai.rapids.cudf.debug.output"

Specify one of -Dai.rapids.cudf.debug.output=stderr to print directly to standard error (default) -Dai.rapids.cudf.debug.output=stdout to print directly to standard output -Dai.rapids.cudf.debug.output=log[_level] to redirect to a logging subsystem that can further be configured.

Supported log levels: debug (default) info warn error

Methods

public void debug(String name, Table table)

Print the contents of a table.

Note that this should never be called from production code, as it is very slow. Also note that this is not production code. You might need/want to update how the data shows up or add in support for more types as this really is just for debugging.

Parameters:

• name – the name of the table to print out.

• table – the table to print out.

public void debug(String name, ColumnView col)

Print the contents of a column.

Note that this should never be called from production code, as it is very slow. Also note that this is not production code. You might need/want to update how the data shows up or add in support for more types as this really is just for debugging.

Parameters:

• name – the name of the column to print out.

• col – the column to print out.

public void debug(String name, HostColumnVectorCore hostCol)

Print the contents of a column.

Note that this should never be called from production code, as it is very slow. Also note that this is not production code. You might need/want to update how the data shows up or add in support for more types as this really is just for debugging.

Parameters:

• name – the name of the column to print out.

• hostCol – the column to print out.

Static Methods

public static Builder builder()

public static TableDebug get()

public enum Output

Enum Constant Summary

LOG
LOG_DEBUG
LOG_ERROR
LOG_INFO
LOG_WARN
STDERR
STDOUT

Enum Constants

STDOUT

STDERR

LOG

LOG_DEBUG

LOG_INFO

LOG_WARN

LOG_ERROR

public static class Builder

Constructor Summary

Builder()

Method Summary

build()
withOutput(Output outputMode)

Constructors

public Builder()

Methods

public Builder withOutput(Output outputMode)

public final TableDebug build()