Вот мой тест которым я проверял это дело на скорость. Там есть как генерация XML из объектов, так и парсинг XML в объекты.
| Код | import java.io.*;
import java.util.Calendar;
import java.util.Random;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlOptions;
public class Main
{
public static final int TEST_RUN_COUNT = 50;
public static final int RUN_COUNT = 100;
public static final int ENTRY_COUNT = 1;
private static Random random = new Random();
public static void main(String[] args) throws Exception
{
RootDTOPlusDocument doc = generateDocument();
validateDocument(doc);
////////////////////////////////////////////////
//init save options
XmlOptions xmlOptions = new XmlOptions();
xmlOptions.setCharacterEncoding("UTF-8");
xmlOptions.setSavePrettyPrint();
xmlOptions.setSavePrettyPrintIndent(2);
ByteArrayOutputStream byteOut = new ByteArrayOutputStream(1024);
saveToDevNull(doc, xmlOptions);
saveToByteArray(byteOut, doc, xmlOptions);
////////////////////////////////////////////////
//init parse options
byteOut.reset();
doc.save(byteOut, xmlOptions);
ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
parseAndValidate(byteIn);
//harm data
doc.getRootDTOPlus().getHumanArray(0).setTransactId(new byte[0]);
byteOut.reset();
doc.save(byteOut, xmlOptions);
byteIn = new ByteArrayInputStream(byteOut.toByteArray());
parseValidating(byteIn);
}
private static void parseValidating(ByteArrayInputStream byteIn) throws XmlException, IOException
{
XmlOptions xmlOptions;
long time;
xmlOptions = new XmlOptions();
xmlOptions.setValidateOnSet();
time = System.currentTimeMillis();
byteIn.reset();
RootDTOPlusDocument.Factory.parse(byteIn, xmlOptions);
time = System.currentTimeMillis() - time;
System.out.println("XML first parse vaidating from ByteArrayInputStream time = " + time + " ms");
for(int i = 0; i < TEST_RUN_COUNT; i++)
{
byteIn.reset();
RootDTOPlusDocument.Factory.parse(byteIn, xmlOptions);
}
time = System.currentTimeMillis();
for(int i = 0; i < RUN_COUNT; i++)
{
byteIn.reset();
RootDTOPlusDocument.Factory.parse(byteIn, xmlOptions);
}
time = System.currentTimeMillis() - time;
System.out.println("XML parse vaidating from ByteArrayInputStream time = " + ((double) time) / RUN_COUNT + " ms");
}
private static void parseAndValidate(ByteArrayInputStream byteIn) throws XmlException, IOException
{
long time;
RootDTOPlusDocument doc;
time = System.currentTimeMillis();
byteIn.reset();
doc = RootDTOPlusDocument.Factory.parse(byteIn);
doc.validate();
time = System.currentTimeMillis() - time;
System.out.println("XML first parse and validate from ByteArrayInputStream time = " + time + " ms");
for(int i = 0; i < TEST_RUN_COUNT; i++)
{
byteIn.reset();
doc = RootDTOPlusDocument.Factory.parse(byteIn);
doc.validate();
}
time = System.currentTimeMillis();
for(int i = 0; i < RUN_COUNT; i++)
{
byteIn.reset();
doc = RootDTOPlusDocument.Factory.parse(byteIn);
doc.validate();
}
time = System.currentTimeMillis() - time;
System.out.println("XML parse and validate from ByteArrayInputStream time = " + ((double) time) / RUN_COUNT + " ms");
}
private static void saveToByteArray(ByteArrayOutputStream byteOut, RootDTOPlusDocument doc, XmlOptions xmlOptions) throws IOException
{
long time;
time = System.currentTimeMillis();
byteOut.reset();
doc.save(byteOut, xmlOptions);
time = System.currentTimeMillis() - time;
System.out.println("XML first write to ByteArrayOutputStream time = " + time + " ms");
for(int i = 0; i < TEST_RUN_COUNT; i++)
{
byteOut.reset();
doc.save(byteOut, xmlOptions);
}
time = System.currentTimeMillis();
for(int i = 0; i < RUN_COUNT; i++)
{
byteOut.reset();
doc.save(byteOut, xmlOptions);
}
time = System.currentTimeMillis() - time;
System.out.println("XML write to ByteArrayOutputStream time = " + ((double) time) / RUN_COUNT + " ms");
}
private static void saveToDevNull(RootDTOPlusDocument doc, XmlOptions xmlOptions) throws IOException
{
DevNull devNull = new DevNull();
long time;
time = System.currentTimeMillis();
doc.save(devNull, xmlOptions);
time = System.currentTimeMillis() - time;
System.out.println("XML first write to /dev/null time = " + time + " ms");
for(int i = 0; i < TEST_RUN_COUNT; i++)
doc.save(devNull, xmlOptions);
time = System.currentTimeMillis();
for(int i = 0; i < RUN_COUNT; i++)
doc.save(devNull, xmlOptions);
time = System.currentTimeMillis() - time;
System.out.println("XML write to /dev/null time = " + ((double) time) / RUN_COUNT + " ms");
}
private static void validateDocument(RootDTOPlusDocument doc)
{
long time = System.currentTimeMillis();
doc.validate();
time = System.currentTimeMillis() - time;
System.out.println("Validate first time = " + time + " ms");
for(int i = 0; i < TEST_RUN_COUNT; i++)
doc.validate();
time = System.currentTimeMillis();
for(int i = 0; i < RUN_COUNT; i++)
doc.validate();
time = System.currentTimeMillis() - time;
System.out.println("Validate time = " + ((double) time) / RUN_COUNT + " ms");
}
private static RootDTOPlusDocument generateDocument()
{
RootDTOPlusDocument doc = RootDTOPlusDocument.Factory.newInstance();
RootDTOPlusDocument.RootDTOPlus root = doc.addNewRootDTOPlus();
for(int i = 0; i < ENTRY_COUNT; i++)
generateHuman(root);
return doc;
}
private static void generateHuman(RootDTOPlusDocument.RootDTOPlus root)
{
HumanType human = root.addNewHuman();
human.setTransactId(getGUID());
human.setDml(DmlType.INSERT);
human.addNewAdressing().setGuid(getGUID());
HumanFieldsType humanFields = human.addNewFields();
humanFields.setFirstName("Акакий");
humanFields.setMiddleName("Назарыч");
humanFields.setLastName("Зербенштейн");
humanFields.setSex((short) 0);
humanFields.setDateReg(Calendar.getInstance());
humanFields.setComment("Аффтар ЖЖОТ! Каменты рулят! Пеши исчо!");
LinkType link = human.addNewLinks();
link.setDtoName("HUMAN");
link.setRole("parent");
link.setGuid(getGUID());
}
private static byte[] getGUID()
{
byte[] guid = new byte[16];
random.nextBytes(guid);
return guid;
}
private static class DevNull extends OutputStream
{
public DevNull()
{
}
public void write(byte b[])
{
}
public void write(byte b[], int off, int len)
{
}
public void flush()
{
}
public void close()
{
}
public void write(int b)
{
}
}
} |
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Разве их xml можно конфигурировать с помощью мапинга?