Package com.streamconverter.command.impl.csv

Class CsvNavigateCommand

java.lang.Object

com.streamconverter.command.AbstractStreamCommand

com.streamconverter.command.impl.csv.CsvNavigateCommand

All Implemented Interfaces:

IStreamCommand

public class CsvNavigateCommand
extends AbstractStreamCommand

CSV Navigate Command Class

This class implements command for targeted CSV transformation using column selectors. It identifies specific columns using column names or indices and applies IRule transformations to those columns while preserving the overall CSV structure.

Field Summary

Fields inherited from class com.streamconverter.command.AbstractStreamCommand

log

Method Summary

Modifier and Type	Method	Description
static CsvNavigateCommand	create(CSVPath columnSelector, IRule rule)	Factory method for creating a CSV navigation command with typed column selector and rule.
static CsvNavigateCommand	create(TreePath treePath, IRule rule)	Factory method for creating a CSV navigation command with TreePath compatibility.
static CsvNavigateCommand	create(String columnSelector, IRule rule)	Deprecated. Use create(CSVPath, IRule) instead
void	execute(InputStream inputStream, OutputStream outputStream)	Executes the command on the provided input stream and writes the result to the output stream.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.streamconverter.command.IStreamCommand

commandName, withLogging, withLogging

Method Details

create

@Deprecated
public static CsvNavigateCommand create(String columnSelector,
 IRule rule)

Deprecated.

Use create(CSVPath, IRule) instead

Factory method for creating a CSV navigation command with explicit rule specification. This method makes the intention explicit: extract data from the specified column and apply the given transformation rule.

Parameters:

columnSelector - the column name or index to select (e.g., "name", "2")

rule - the transformation rule to apply to selected column data

Returns:

a CsvNavigateCommand that extracts the specified column with the given rule

Throws:

IllegalArgumentException - if rule is null

create

public static CsvNavigateCommand create(CSVPath columnSelector,
 IRule rule)

Factory method for creating a CSV navigation command with typed column selector and rule.

Parameters:

columnSelector - the typed CSVPath to select column

rule - the transformation rule to apply to selected column data

Returns:

a CsvNavigateCommand that extracts the specified column with the given rule

Throws:

IllegalArgumentException - if columnSelector or rule is null

create

public static CsvNavigateCommand create(TreePath treePath,
 IRule rule)

Factory method for creating a CSV navigation command with TreePath compatibility.

Parameters:

treePath - the TreePath representing column selector

rule - the transformation rule to apply to selected column data

Returns:

a CsvNavigateCommand that extracts the specified column with the given rule

Throws:

IllegalArgumentException - if treePath or rule is null

execute

public void execute(InputStream inputStream,
 OutputStream outputStream)
             throws IOException

Description copied from class: AbstractStreamCommand

Executes the command on the provided input stream and writes the result to the output stream.

Specified by:

execute in interface IStreamCommand

Specified by:

execute in class AbstractStreamCommand

Parameters:

inputStream - The input stream to read data from.

outputStream - The output stream to write data to.

Throws:

IOException - If an I/O error occurs during the execution of the command.