Package com.streamconverter.command.impl.json

Class JsonFilterCommand

java.lang.Object

com.streamconverter.command.AbstractStreamCommand

com.streamconverter.command.impl.json.JsonFilterCommand

All Implemented Interfaces:

IStreamCommand

public class JsonFilterCommand
extends AbstractStreamCommand

JSON Filter Command Class

This class implements pure data extraction from JSON using TreePath expressions. Unlike JsonNavigateCommand which applies transformations, JsonFilterCommand only extracts/filters data based on specified paths without any modifications.

Features: - Extract specific elements using TreePath expressions - Preserve exact data types and structure of extracted elements - Memory-efficient processing for large JSON files - Support for simple path expressions

Field Summary

Fields inherited from class com.streamconverter.command.AbstractStreamCommand

log

Constructor Summary

Constructors

Constructor	Description
JsonFilterCommand(IPath<List<String>> jsonPath)	Constructor for JSON filtering with typed TreePath selector.

Method Summary

Modifier and Type	Method	Description
protected void	executeInternal(InputStream inputStream, OutputStream outputStream)	Abstract method to be implemented by subclasses for executing the command.
protected String	getCommandDetails()	コマンドの詳細情報を取得します。

Methods inherited from class com.streamconverter.command.AbstractStreamCommand

execute, execute

Methods inherited from class java.lang.Object

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

Constructor Details

JsonFilterCommand

public JsonFilterCommand(IPath<List<String>> jsonPath)

Constructor for JSON filtering with typed TreePath selector.

Parameters:

jsonPath - the typed TreePath to extract data

Throws:

IllegalArgumentException - if jsonPath is null

Method Details

getCommandDetails

protected String getCommandDetails()

Description copied from class: AbstractStreamCommand

コマンドの詳細情報を取得します。

サブクラスでオーバーライドして、コマンド固有の設定や状態を返すことができます。 この情報はデバッグログに出力され、問題の診断に役立ちます。

Overrides:

getCommandDetails in class AbstractStreamCommand

Returns:

コマンドの詳細情報

executeInternal

protected void executeInternal(InputStream inputStream,
 OutputStream outputStream)
                        throws IOException

Description copied from class: AbstractStreamCommand

Abstract method to be implemented by subclasses for executing the command.

Specified by:

executeInternal 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.