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/*******************************************************************************
* Copyright (c) 2005, 2016 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.core.parser.tests;
import java.io.StringWriter;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
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 org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* This class implements a utility that will walk through an object
* and it's children and create an XML file for it.
*/
public class XMLDumper {
public static class Test {
private String msg = "hi"; //$NON-NLS-1$
public String getMsg() {
return msg;
}
public Test self = this;
}
public static void main(String [] args) {
Test test = new Test();
try {
XMLDumper dumper = new XMLDumper(test);
Document document = dumper.getDocument();
StringWriter writer = new StringWriter();
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.transform(new DOMSource(document), new StreamResult(writer));
System.out.println( "STRXML = " + writer.toString() ); //Spit out DOM as a String //$NON-NLS-1$
} catch (TransformerException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
}
}
private int id = 0;
private HashMap map = new HashMap();
private Document document;
public Document getDocument() {
return document;
}
public XMLDumper(Object obj) throws ParserConfigurationException {
document = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
document.appendChild(createObject(obj));
}
private Element createObject(Object obj) {
Class cls = obj.getClass();
String clsName = cls.getName();
clsName = clsName.replace('$', '.');
Element element = document.createElement(clsName);
map.put(obj, Integer.valueOf(id));
element.setAttribute("id",Integer.toString(id++)); //$NON-NLS-1$
Field [] fields = cls.getDeclaredFields();
for (int i = 0; i < fields.length; ++i) {
Field field = fields[i];
int modifiers = field.getModifiers();
// Skip over static fields
if (Modifier.isStatic(modifiers))
continue;
// Skip fields that start with an underscore
if (field.getName().charAt(0) == '_')
continue;
Object value = null;
String fieldName = field.getName();
if (Modifier.isPublic(modifiers)) {
try {
value = field.get(obj);
} catch (Exception e) {
value = e;
}
} else {
String methodName = "get" + //$NON-NLS-1$
fieldName.substring(0, 1).toUpperCase() +
fieldName.substring(1);
Method method = null;
try {
method = cls.getMethod(methodName, (Class []) null);
} catch (NoSuchMethodException e) {
continue;
}
try {
value = method.invoke(obj, (Object []) null);
} catch (Exception e) {
value = e;
}
}
Element fieldElement = document.createElement(fieldName);
element.appendChild(fieldElement);
if (value == null)
return element;
Class type = field.getType();
if (String.class.isAssignableFrom(type))
fieldElement.appendChild(document.createTextNode((String)value));
else if (Integer.class.isAssignableFrom(type))
fieldElement.appendChild(document.createTextNode(((Integer)value).toString()));
else if (Exception.class.isAssignableFrom(type))
fieldElement.appendChild(document.createTextNode(value.toString()));
else {
Object v = map.get(value);
if (v != null)
fieldElement.setAttribute("refid", v.toString()); //$NON-NLS-1$
else
fieldElement.appendChild(createObject(value));
}
}
return element;
}
}
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