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2021-08-05

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Elex
2021-08-05 17:59:24 +09:00
parent 5f17645bda
commit a69e814fdb
43 changed files with 1017 additions and 28 deletions
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14
xml/build.gradle.kts Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
plugins {
id("elex-java")
}
dependencies {
}

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xml/logback.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
~ Examples for Java
~
~ Copyright (c) 2021. Elex. All Rights Reserved.
~ https://www.elex-project.com/
-->
<configuration>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<root level="TRACE">
<appender-ref ref="CONSOLE" />
</root>
</configuration>

73
xml/src/main/java/kr/pe/elex/examples/DOMParser.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;
import lombok.extern.slf4j.Slf4j;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.*;
import java.nio.charset.StandardCharsets;
@Slf4j
public class DOMParser {
public static Document newDocument() throws ParserConfigurationException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
return builder.newDocument();
}
public static Document parse(final String xml)
throws ParserConfigurationException, IOException, SAXException {
return parse(new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8)));
}
public static Document parse(final InputStream xml)
throws ParserConfigurationException, IOException, SAXException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
return builder.parse(xml);
}
public static void toString(Document document, Writer writer) throws TransformerException {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(writer);
transformer.transform(source, result);
}
public static void toString(Document document, OutputStream outputStream) throws TransformerException {
toString(document, new OutputStreamWriter(outputStream));
}
public static void toString(Document document, Writer writer, int indent) throws TransformerException {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", String.valueOf(indent));
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(writer);
transformer.transform(source, result);
}
}

34
xml/src/main/java/kr/pe/elex/examples/SAXParser.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;
import lombok.extern.slf4j.Slf4j;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParserFactory;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
@Slf4j
public class SAXParser {
public static void parse(String xml, DefaultHandler handler)
throws ParserConfigurationException, SAXException, IOException {
parse(new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8)), handler);
}
public static void parse(InputStream xml, DefaultHandler handler)
throws ParserConfigurationException, SAXException, IOException {
SAXParserFactory factory = SAXParserFactory.newInstance();
javax.xml.parsers.SAXParser saxParser = factory.newSAXParser();
saxParser.parse(xml, handler);
}
}

65
xml/src/main/java/kr/pe/elex/examples/StAXParser.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;
import lombok.extern.slf4j.Slf4j;
import javax.xml.stream.*;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
@Slf4j
public class StAXParser {
public static XMLStreamWriter create(OutputStream outputStream) throws XMLStreamException {
XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newInstance();
return xmlOutputFactory.createXMLStreamWriter(outputStream, StandardCharsets.UTF_8.name());
}
public static void parse(String xml, Handler handler) throws XMLStreamException {
parse(new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8)), handler);
}
public static void parse(InputStream xml, Handler handler) throws XMLStreamException {
XMLInputFactory factory = XMLInputFactory.newInstance();
XMLEventReader eventReader =
factory.createXMLEventReader(xml);
while (eventReader.hasNext()) {
XMLEvent event = eventReader.nextEvent();
if (event.getEventType() == XMLStreamConstants.START_ELEMENT) {
StartElement startElement = event.asStartElement();
String qName = startElement.getName().getLocalPart();
handler.startElement(qName, startElement);
} else if (event.getEventType() == XMLStreamConstants.END_ELEMENT) {
EndElement endElement = event.asEndElement();
String qName = endElement.getName().getLocalPart();
handler.endElement(qName, endElement);
} else if (event.getEventType() == XMLStreamConstants.CHARACTERS) {
Characters characters = event.asCharacters();
handler.characters(characters.getData());
}
}
}
public interface Handler {
public void startElement(String qName, StartElement element);
public void endElement(String qName, EndElement element);
public void characters(String data);
}
}

8
xml/src/main/java/kr/pe/elex/examples/package-info.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;

69
xml/src/test/java/kr/pe/elex/examples/DOMParserTest.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.io.StringWriter;
@Slf4j
class DOMParserTest {
/*
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<persons>
<person age="11">Charlie</person>
<person age="34">Steve</person>
</persons>
*/
@Test
void create() throws ParserConfigurationException, TransformerException {
Document document = DOMParser.newDocument();
Element rootElement = document.createElement("persons");
document.appendChild(rootElement);
Element charlie = document.createElement("person");
charlie.setTextContent("Charlie");
rootElement.appendChild(charlie);
Attr attr = document.createAttribute("age");
attr.setValue("11");
charlie.setAttributeNode(attr);
Element steve = document.createElement("person");
steve.setTextContent("Steve");
rootElement.appendChild(steve);
attr = document.createAttribute("age");
attr.setValue("34");
steve.setAttributeNode(attr);
StringWriter writer = new StringWriter();
DOMParser.toString(document, writer);
System.out.println(writer.toString());
}
@Test
public void parse() throws ParserConfigurationException, IOException, SAXException {
String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?><persons><person age=\"11\">Charlie</person><person age=\"34\">Steve</person></persons>";
Document document = DOMParser.parse(xml);
NodeList nodeList = document.getElementsByTagName("person");
for (int i = 0; i < nodeList.getLength(); i++) {
System.out.println(nodeList.item(i).getTextContent());
}
}
}

50
xml/src/test/java/kr/pe/elex/examples/SAXParserTest.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.ParserConfigurationException;
import java.io.IOException;
import static org.junit.jupiter.api.Assertions.*;
@Slf4j
class SAXParserTest {
static final String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?><persons><person age=\"11\">Charlie</person><person age=\"34\">Steve</person></persons>";
@Test
void parse() throws ParserConfigurationException, IOException, SAXException {
SAXParser.parse(xml,new DefaultHandler(){
private boolean mark = false;
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if (qName.equals("person")) {
mark = true;
System.out.println("age= " + attributes.getValue("age"));
}
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
mark = false;
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
if (mark){
System.out.println("Name: " + new String(ch, start, length));
}
}
});
}
}

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xml/src/test/java/kr/pe/elex/examples/StAXParserTest.java Normal file
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/*
* Examples for Java
*
* Copyright (c) 2021. Elex. All Rights Reserved.
* https://www.elex-project.com/
*/
package kr.pe.elex.examples;
import org.junit.jupiter.api.Test;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.nio.charset.StandardCharsets;
class StAXParserTest {
static final String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?><persons><person age=\"11\">Charlie</person><person age=\"34\">Steve</person></persons>";
@Test
void create() throws XMLStreamException, IOException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
XMLStreamWriter xmlStreamWriter = StAXParser.create(outputStream);
xmlStreamWriter.writeStartDocument();
xmlStreamWriter.writeStartElement("persons");
xmlStreamWriter.writeStartElement("person");
xmlStreamWriter.writeAttribute("age", "11");
xmlStreamWriter.writeCharacters("Charlie");
xmlStreamWriter.writeEndElement();
xmlStreamWriter.writeStartElement("person");
xmlStreamWriter.writeAttribute("age", "34");
xmlStreamWriter.writeCharacters("Steve");
xmlStreamWriter.writeEndElement();
xmlStreamWriter.writeEndElement();
xmlStreamWriter.writeEndDocument();
xmlStreamWriter.flush();
xmlStreamWriter.close();
System.out.println(new String(outputStream.toByteArray(), StandardCharsets.UTF_8));
outputStream.close();
}
@Test
void parse() throws XMLStreamException {
StAXParser.parse(xml, new StAXParser.Handler() {
private boolean mark = false;
@Override
public void startElement(String qName, StartElement element) {
if (qName.equals("person")) {
mark = true;
System.out.println("age = " + element
.getAttributeByName(new QName("age")).getValue());
}
}
@Override
public void endElement(String qName, EndElement element) {
mark = false;
}
@Override
public void characters(String data) {
if (mark) {
System.out.println("Name: " + data);
}
}
});
}
}