I am trying to parse XML with the following code, but StringReader is not available in the BlackBerry JDE. What is the right way to do this?
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xmlRecords));
Document doc = db.parse(is);
String xmlString = "<xml> </xml>" // your xml string
ByteArrayInputStream bis = new ByteArrayInputStream(xmlString.getBytes("UTF-8"));
Document doc = builder.parse(bis);
Try this out
If you want to build a DOM from data coming from a server, you're much better off parsing the InputStream directly with a DocumentBuilder rather than reading the data into a String and trying to work with that. One way is:
Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(input);
Related
I have created a script to download files from an ftp endpoint. I was assured that the files would be in utf-8 encoding but upon downloading and parsing the xml, we encounter bad formatting. The process is to download the file, convert the xml to json and parse and convert to a different format. What we see after converting to json is for example the following which appears instead of chinese/hindi/arabic characters:
"Size": 3227,
"Title": "??? ???? ????? ?? ???? ?? 5 ??? ?? ??? ?? ?? ???? ?? ????????? ?? ???? ???? ??????-Pakistan new army chief
The code snippet is the following:
ftp.connect("xx.xxx.xxx.xx");
ftp.login("xxxx", "xxxxx");
ftp.enterLocalPassiveMode();
ftp.setControlEncoding("UTF-8");
ftp.setFileType(FTP.BINARY_FILE_TYPE);
...
String remoteFile1 = ftp.printWorkingDirectory() + "/" + file.getName();
File downloadFile1 = new File(destFolder + "/" + "/" + file.getName());
OutputStream outputStream1 = new BufferedOutputStream(new FileOutputStream(downloadFile1));
boolean success = ftp.retrieveFile(remoteFile1, outputStream1);
outputStream1.flush();
outputStream1.close();
....
DocumentBuilderFactory docFactory =
DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.newDocument();
doc = docBuilder.parse(xmlFile);
doc.getDocumentElement().normalize();
TransformerFactory tf = TransformerFactory.newInstance();
Transformer trans = tf.newTransformer();
StringWriter sw = new StringWriter();
trans.transform(new DOMSource(doc), new StreamResult(sw));
String xml = sw.toString();
JSONObject xmlJSONObj = XML.toJSONObject(xml);
String jsonPrettyPrintString = xmlJSONObj.toString(4);
jsonMapper.configure(SerializationFeature.WRAP_ROOT_VALUE, false);...
Can someone advise how to ensure the encoding can be changed to output the correct format for foreign characters?
Hi I want to send a simple XML from server to client.
On the server side I use
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);OutputStream bos = userSocket.getOutputStream();
StreamResult result = new StreamResult(bos);
transformer.transform(source, result);
//here bos.close();
On the client side i use
InputStream is = socket.getInputStream();
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder;
dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(is);
When I close the bos on the server side after the transformer, the XML is successfully transferred. But when I don't Document doc = dBuilder.parse(is); keeps waiting for input and my program stuck. So my question is how can I successfully transfer XML between my client and server without closing the socket. Thanks ;)
Change your bos.close() to bos.flush().
I have problem that my DOM parser can´t load file when there are UTF-8 characters in XML file
Now, i am aware that i have to give him instruction to read utf-8, but i don´t know how to put it in my code
here it is:
File xmlFile = new File(fileName);
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(xmlFile);
doc.getDocumentElement().normalize();
i am aware that there is method setencoding(), but i don´t know where to put it in my code...
Try this. Worked for me
InputStream inputStream= new FileInputStream(completeFileName);
Reader reader = new InputStreamReader(inputStream,"UTF-8");
InputSource is = new InputSource(reader);
is.setEncoding("UTF-8");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(is);
Try to use Reader and provide encoding as parameter:
InputStream inputStream = new FileInputStream(fileName);
documentBuilder.parse(new InputSource(new InputStreamReader(inputStream, "UTF-8")));
I used what Eugene did up there and changed it a little.
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
FileInputStream in = new FileInputStream(new File("XML.xml"));
Document doc = dBuilder.parse(in, "UTF-8");
though this will be read as UTF-8 if you are printing in eclipse console it won't show any 'UTF-8' characters unless the java file is saved as 'UTF-8', or at least that what happened with me
I have an XML that is UTF-8 and have some special characters in Chinese, I need to parse this xml.
DocumentBuilderFactory factory = DocumentBuilderFactory
.newInstance();
factory.setIgnoringElementContentWhitespace(true);
factory.setNamespaceAware(true);
factory.setValidating(true);
//byte[] buffer = xmlMsg.getBytes("UTF-16");
logger.info("transformToUTP " + xmlMsg);
//byte[] buffer = soapMessage.getBytes();
//ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
InputSource is = new InputSource(new ByteArrayInputStream(
xmlMsg.getBytes("UTF-16")));
Document doc = factory.newDocumentBuilder().parse(is);
//Document doc = factory.newDocumentBuilder().parse(
new InputSource(new StringReader(xmlMsg)));
XPath xpath = XPathFactory.newInstance().newXPath();
xpath.setNamespaceContext(getNameSpace());
XPathExpression soapBodyExpr = xpath.compile(BODY_XPATH_EXP);
Node soapBody = (Node) soapBodyExpr.evaluate(doc,
XPathConstants.NODE);
Node reqMsgNode = soapBody.getFirstChild();
I am getting a null pointer exception on reqMsgNode.
Do not convert xml into a string, parse it as is, use
DocummentBuilder.parse(File) or DocumentBuilder.parse(InputStream)
the parser will take encoding from xml declaration e.g. <?xml version="1.0" encoding="UTF-8"?>, and if it is missing then it will use UTF-8 by default
i want to Canonicalize a Stax object, the program it's doing it with DOM, but dom can't manage big XML documents (like 1GB), so STAX it's the solution.
The Code that i have it's:
File file=new File("big-1gb.xml");
org.apache.xml.security.Init.init();
DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance();
DocumentBuilder documentBuilder = dfactory.newDocumentBuilder();
Document doc = documentBuilder.parse(file);
Canonicalizer c14n = Canonicalizer.getInstance("http://www.w3.org/TR/2001/REC-xml-c14n-20010315");
outputBytes = c14n.canonicalizeSubtree(doc.getElementsByTagName("SomeTag").item(0));
The idea it's do the code below with Stax...
Thx :)
I solve this problem with XOM library, here is the equivalent code.
ByteArrayOutputStream bytestream = new ByteArrayOutputStream();
ObjectOutputStream outputstream = new ObjectOutputStream(bytestream);
nu.xom.Builder builder = new nu.xom.Builder(false, new nu.xom.samples.MinimalNodeFactory()); //The false parameter is for avoid a ValidationException that trows XOM
try {
nu.xom.canonical.Canonicalizer outputter = new nu.xom.canonical.Canonicalizer(outputstream);
nu.xom.Document input = builder.build(file);
outputter.write(input);
}
catch (Exception ex) {
System.err.println(ex);
ex.printStackTrace();
}
outputstream.close();
MessageDigest sha1 = MessageDigest.getInstance("SHA1");
sha1.reset();
sha1.update(java.nio.ByteBuffer.wrap(bytestream.toByteArray()));
salidasha1=sha1.digest();
String tagDigestValue=new String(Base64.encodeBase64(salidasha1));
This code can manage files of 200Mb, and take 7 minutes to do the canonicalization, if you have doubt's, see the XOM documentation, it's pretty clear and have a lot of Examples.
Thx to all for your comments :)