Package com.streamconverter.command.impl.xml

Class XmlFilterCommand

java.lang.Object

com.streamconverter.command.AbstractStreamCommand

com.streamconverter.command.impl.xml.XmlFilterCommand

All Implemented Interfaces:

IStreamCommand

public class XmlFilterCommand
extends AbstractStreamCommand

XML Filter Command Class

This class implements pure data extraction from XML using TreePath expressions. Unlike XmlNavigateCommand which applies transformations, XmlFilterCommand only extracts/filters elements based on specified paths without any modifications.

Features: - Extract specific elements using TreePath expressions - Preserve exact XML structure of extracted elements - Memory-efficient streaming processing - Support for complex path expressions including nested elements and attributes

Constructor Summary

Constructors

Constructor	Description
XmlFilterCommand(IPath<List<String>> xpath)	Constructor for XML 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

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

execute

Constructor Details

XmlFilterCommand

public XmlFilterCommand(IPath<List<String>> xpath)

Constructor for XML filtering with typed TreePath selector.

Parameters:

xpath - the typed TreePath to extract elements

Throws:

IllegalArgumentException - if xpath 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.