XML package com.elink.util;
/*
* <p>company: Linco software www.elingke.com </p>
* @author Liubaojun
* @version 1.0
* Created on 2004-11-29
* FROM ELINKBSP Partial source code
*/
Import java.io.*;
Import java.util.*;
Import javax.xml.parsers.*;
Import javax.xml.transform.*;
Import javax.xml.transform.dom.*;
Import javax.xml.transform.stream.*;
Import org.w3c.dom.*;
Import org.xml.sax.*;
public class Xmlutil
{
public static synchronized Document newdocument ()
{
Document doc = null;
Try
{
Documentbuilder db = Documentbuilderfactory.newinstance ().
Newdocumentbuilder ();
doc = Db.newdocument ();
}
catch (Exception e)
{
Logutil.logexception (e);
}
return doc;
}
public static synchronized Element createrootelement ()
{
Element rootelement = null;
Try
{
Documentbuilder db = Documentbuilderfactory.newinstance ().
Newdocumentbuilder ();
Document doc = Db.newdocument ();
RootElement = Doc.getdocumentelement ();
}
catch (Exception e)
{
E.printstacktrace ();
}
return rootelement;
}
public static synchronized Element getrootelement (String fileName)
{
if (FileName = = NULL | | filename.length () = 0)
{
return null;
}
Try
{
Element rootelement = null;
FileInputStream fis = new FileInputStream (fileName);
rootelement = Getrootelement (FIS);
Fis.close ();
return rootelement;
}
catch (Exception e)
{
return null;
}
}
public static synchronized Element getrootelement (InputStream is)
{
if (is = = null)
{
return null;
}
Element rootelement = null;
Try
{
Documentbuilder db = Documentbuilderfactory.newinstance ().
Newdocumentbuilder ();
Document doc = Db.parse (IS);
RootElement = Doc.getdocumentelement ();
}
catch (Exception e)
{
E.printstacktrace ();
}
return rootelement;
}
public static synchronized Element getrootelement (InputSource is)
{
if (is = = null)
{
return null;
}
Element rootelement = null;
Try
{
Documentbuilder db = Documentbuilderfactory.newinstance ().
Newdocumentbuilder ();
Document doc = Db.parse (IS);
RootElement = Doc.getdocumentelement ();
}
catch (Exception e)
{
E.printstacktrace ();
}
return rootelement;
}
public static synchronized element[] Getchildelements (element Element)
{
if (element = = null)
{
return null;
}
Vector childs = new vector ();
for (Node node = element.getfirstchild (); node!= null;
node = node.getnextsibling ())
{
if (node instanceof Element)
{
Childs.add ((Element) node);
}
}
element[] ELMT = new element[childs.size ()];
Childs.toarray (ELMT);
return ELMT;
}
public static synchronized element[] Getchildelements (element element,
String childname)
{
if (element = = NULL | | childname = NULL | | childname.length () = 0)
{
return null;
}
Vector childs = new vector ();
for (Node node = element.getfirstchild (); node!= null;
node = node.getnextsibling ())
{
if (node instanceof Element)
{
if (Node.getnodename (). Equals (ChildName))
{
Childs.add ((Element) node);
}
}
}
element[] ELMT = new element[childs.size ()];
Childs.toarray (ELMT);
return ELMT;
}
public static synchronized node[] Getchildnodes (node node)
{
if (node = null)
{
return null;
}
Vector childs = new vector ();
for (Node n = node.getfirstchild (); n!= null;
n = n.getnextsibling ())
{
Childs.add ((Element) n);
}
node[] ChildNodes = new element[childs.size ()];
Childs.toarray (childnodes);
return childnodes;
}
public static synchronized element GetChildElement (element element,
String childname)
{
if (element = = NULL | | childname = NULL | | childname.length () = 0)
{
return null;
}
Element childs = null;
for (Node node = element.getfirstchild (); node!= null;
node = node.getnextsibling ())
{
if (node instanceof Element)
{
if (Node.getnodename (). Equals (ChildName))
{
Childs = (Element) node;
Break
}
}
}
return childs;
}
public static synchronized element GetChildElement (element Element)
{
if (element = = null)
{
return null;
}
Element childs = null;
for (Node node = element.getfirstchild (); node!= null;
node = node.getnextsibling ())
{
if (node instanceof Element)
{
Childs = (Element) node;
Break
}
}
return childs;
}
public static synchronized string[] Getelenentvalues (element Element)
{
if (element = = null)
{
return null;
}
Vector childs = new vector ();
for (Node node = element.getfirstchild (); node!= null;
node = node.getnextsibling ())
{
if (node instanceof Text)
{
Childs.add (Node.getnodevalue ());
}
}
String[] values = new string[childs.size ()];
Childs.toarray (values);
return values;
}
public static synchronized String Getelenentvalue (element Element)
{
if (element = = null)
{
return null;
}
String retnstr = null;
for (Node node = element.getfirstchild (); node!= null;
node = node.getnextsibling ())
{
if (node instanceof Text)
{
String str = Node.getnodevalue ();
if (str = NULL | | str.length () = 0
|| Str.trim (). Length () = 0)
{
Continue
}
Else
{
Retnstr = str;
Break
}
}
}
return retnstr;
}
public static synchronized element Findelementbyname (element e, String name)
{
if (e = null | | | name = NULL | | name.length () = 0)
{
return null;
}
String nodename = null;
element[] Childs = getchildelements (e);
for (int i = 0; i < childs.length; i++)
{
NodeName = Childs[i].getnodename ();
if (Name.equals (nodename))
{
return childs[i];
}
}
for (int i = 0; i < childs.length; i++)
{
Element retn = Findelementbyname (childs[i], name);
if (RETN!= null)
{
return RETN;
}
}
return null;
}
public static synchronized element findelementbyattr (element E, String attrname,
String attrval)
{
Return Findelementbyattr (E, Attrname, Attrval, true);
}
public static synchronized element findelementbyattr (element E, String attrname,
String Attrval, Boolean dept)
{
if (e = null | | attrname = NULL | | attrname.length () = 0
|| Attrval = = NULL | | Attrval.length () = = 0)
{
return null;
}
String tmpvalue = null;
element[] Childs = getchildelements (e);
for (int i = 0; i < childs.length; i++)
{
Tmpvalue = Childs[i].getattribute (attrname);
if (Attrval.equals (Tmpvalue))
{
return childs[i];
}
}
if (dept)
{
for (int i = 0; i < childs.length; i++)
{
Element retn = findelementbyattr (Childs[i], attrname, attrval);
if (RETN!= null)
{
return RETN;
}
}
}
return null;
}
public static synchronized String Formatxml (Element e)
{
Return Formatxml (e, 0);
}
/**
* Format XML output string.
*/
public static synchronized String Formatxml (Element e, int indent)
{
indent++;
for (Node n = e.getfirstchild (); n!= null; n = n.getnextsibling ())
{
Appendindent (e, N, indent);
if (!n.getnodename (). Equals ("#text")
{
Formatxml ((Element) n, indent);
}
}
indent--;
Appendindent (e, indent);
return e.tostring ();
}
/**
* Inserts a format representation before the specified node.
*/
private static synchronized void Appendindent (Element e, Node pos, int indent)
{
Document doc = E.getownerdocument ();
if (indent = 0)
{
E.insertbefore (Doc.createtextnode ("\ n"), POS);
}
for (int i = 0; i < indent; i++)
{
if (i = = 0)
{
E.insertbefore (Doc.createtextnode ("\n\t"), POS);
}
Else
{
E.insertbefore (Doc.createtextnode ("T"), POS);
}
}
}
/**
* Append format representation.
*/
private static synchronized void Appendindent (Element e, int indent)
{
Document doc = E.getownerdocument ();
if (indent = 0)
{
E.appendchild (Doc.createtextnode ("\ n"));
}
for (int i = 0; i < indent; i++)
{
if (i = = 0)
{
E.appendchild (Doc.createtextnode ("\n\t"));
}
Else
{
E.appendchild (Doc.createtextnode ("T"));
}
}
}
public static synchronized void setattribute (Element e, string name, String value)
{
if (e = null | | | name = NULL | | name.length () = 0 | | | value = NULL
|| Value.length () = = 0)
Return
Else
E.setattribute (name, value);
}
public static synchronized String getattribute (Element E, string name)
{
Return GetAttribute (E, name, NULL);
}
public static synchronized String getattribute (Element E, string name, String defval)
{
if (e = null | | | name = NULL | | name.length () = 0)
return defval;
Else
return E.getattribute (name);
}
public void Transformerwrite (Element doc, String filename) throws Exception
{
Domsource doms = new Domsource (DOC);
File F = new file (filename);
Streamresult sr = new Streamresult (f);
Transformerwrite (Doms, SR);
}
public void Transformerwrite (Element doc, file file) throws Exception
{
Domsource doms = new Domsource (DOC);
Streamresult sr = new Streamresult (file);
Transformerwrite (Doms, SR);
}
public void Transformerwrite (Element doc, OutputStream OutStream) throws Exception
{
Domsource doms = new Domsource (DOC);
Streamresult sr = new Streamresult (OutStream);
Transformerwrite (Doms, SR);
}
public void Transformerwrite (Element doc, Writer outwriter) throws Exception
{
Domsource doms = new Domsource (DOC);
Streamresult sr = new Streamresult (outwriter);
Transformerwrite (Doms, SR);
}
public void Transformerwrite (Domsource doms, Streamresult Sr) throws Exception
{
Transformerfactory tf = Transformerfactory.newinstance ();
Transformer t = Tf.newtransformer ();
T.setoutputproperty (outputkeys.encoding, "GBK");
T.transform (Doms, SR);
}
}
