Analysis sax XML parser

Hello...

I would like to publish this example to help pasring xml or live feed from a URL.

SAXParserFactory plant = SAXParserFactory.newInstance ();
SAXParser saxParser = factory.newSAXParser ();

DefaultHandler Manager = new DefaultHandler() {}

' public void startElement (String uri, String localName, String qName,
Attributes attributes) throws SAXException {}
If (qName.equalsIgnoreCase ("an element of xml"))
{

vector.addElement (attributes.getValue ("attribute of an element"));

}

ElseIf (qName.equalsIgnoreCase ("second item FRO xml"))
{

attributteValue = attributes.getValue ("title");

}

' public void endElement (String uri, String localName, String qName)
throws SAXException {}

currentElement = false;

If (qName.equalsIgnoreCase ("end of the element"))
{
do something
}

}

};
S StreamConnection = null;

s = (StreamConnection) Connector.open ("enter the url that provides the xml file");
HttpConnection httpConn s = (HttpConnection);

If (httpConn.getResponseCode () is 400)

{
Dialog.Alert ("internett noaccess");

}

InputStream input = null;
entry = s.openInputStream ();

Reader reader = new InputStreamReader(input,"UTF-8");
InputSource is = new InputSource (reader);
is.setEncoding("UTF-8");

saxParser.parse (, Manager);
}

Add the required elements of the XML in the analysis to the vectors and do something.

SAX (Simple API for XML) is a parser based on the events in sequential access API developed by the XML - DEV list for XML documents. SAX provides a mechanism for reading data from an XML document that is an alternative to that provided by the DOM (Document Object). When the DOM works on the document as a whole, SAX parsers function on each element of the XML document in order.

SAX parsers have certain advantages over DOM-style parsers. A SAX parser doesn't need to declare every event analysis what happens and almost all of these once-reported information normally rejects (he does, however, keep some things, for example a list of all the elements that have not been closed yet, in order to intercept errors later as the end tags in the wrong order). Thus, the minimum memory required for a SAX parser is proportional to the maximum depth of the XML (i.e. the XML tree) and the maximum data involved in a single XML event (for example, the name and the attributes of a single tag start, or the content of a processing instruction, etc.).

This amount of memory is generally regarded as negligible. A DOM parser, however, usually built a representation of the tree of the entire document in memory at first, using memory that increases with the length of the entire document. It takes a lot of time and space for large documents (memory allocation and the construction of data structures take time). The advantage of compensation, of course, is that once loaded no matter what part of the document are accessible in any order.

I hope this post was helpful.

Welcome on the support forums.

Thank you for contributing. There is however a minor problem: all blocking operations must be made on a separate thread. You cannot use Dialog.alert on a thread without use invokelater or synchronization on the eventlock, you should fix that.

In addition, there are a lot of response codes, and you should check for 200 continue, otherwise trigger an error.

There is also a xmldemo in the samples provided with the eclipse plugin or JDE, but it uses DocumentBuilder, no Sax.

Tags: BlackBerry Developers

Similar Questions

Analysis of XML with SAX parser

It comes to my XML. I am able to analyze using the DOM parser, bt I m new analysis SAX. Can someone help me to analyze it using SAX parser

There is a snippet of Code to call the HTTP Xml & only to the analyzed using Sax parser.

SAXParserImpl saxparser = new SAXParserImpl();
ListParser receivedListHandler=new  ListParser();
static DataInputStream din = null;
public static String response;

    HttpConnection hc = null;
        OutputStream os;
           try
           {
               final String url =""+ InitClass.getConnectionString()+";ConnectionTimeout=25000";

               hc = (HttpConnection)Connector.open(url);

               os = hc.openOutputStream();
               os.write(postDataBytes);

               if (hc.getResponseCode() == 200)
                    din = hc.openDataInputStream();
                else
                    response = "" + hc.getResponseCode();
                saxparser.parse(din, receivedListHandler);
           }
           catch (Exception e)
           {

           }
           finally
           {
              try
              {
                  if(din!=null)
                      din.close();
                  din = null;
                  if(hc!=null)
                      hc.close();
                  hc = null;
              }
              catch (Exception e) {   }
           }

class Analyzer

public class ListParser extends DefaultHandler
{
private String Key="";
private  Hashtable ht=new Hashtable();
vector vec = new Vector();
public ListParser()
{

}
/**
* Gets called, whenever a Xml is start .
*/
public void startDocument() throws SAXException
{

}
/**
* Gets called, whenever a Xml is End .
*/
public void endDocument() throws SAXException
{ 

}
/**
* Gets called, whenever a new tag is found.
*/
public void startElement(String uri, String localName, String name, Attributes attributes) throws SAXException
{
    if(name.equals(""))
    {
        ht = null;
        ht = new Hashtable();
    }
    else if(name.equals(""))
    {

    }
    Key=name;
}

/**
* Gets called, whenever a closed tag is found.
*/
public void endElement(String uri, String localName, String name) throws SAXException
{
    if(name.equals(""))
    {
        vec.addElement(ht);
    }
}
public void characters(char[] ch, int start, int length) throws SAXException
{
    String element=new String(ch, start, length);
    ht.put(Key, element);
}
}

It will analyze your XML file and you will get data of vector vec in hash tables by XML tag.

XML parser - display order

Hello

I have a program that does the following:

1 contact the http server and executes a query on a mysql database.

2 Php script generates an xml file

3. XML file is downloaded on the BlackBerry.

Steps one and two work perfectly well - no problem there. When the XML is generated on the server, entries are sorted in ascending order according to the unique primary key assigned to each record (an integer). I downloaded the XML file on the server and it has inspected and everything is in order.

The problem is the following:

When the XML file is downloaded on the BB and the contents of the XML file displayed on the BB, the information that is displayed is not in order according to the unique primary key assigned to each growing record. Indeed, the information is displayed in what appears to be a way almost no organized. (I say "almost no organized", as it doesn't seem to be a discernible patter, but I have not yet studied to confirm if this is indeed the case.)

The XML parser works like this:

1. downloaded XML file

2. the information is extracted from the file by using a loop.

3. in the course of each loop cycle, a channel is created and this string is then inserted in an EditField.

4. a new EditField is instantiated for each record.

I don't know if I am missing something on the side of analysis of XML. Any ideas? All the world was faced with a similar problem?

One of my friends from specialist tech understood the problem.

I wrongly assumed that a mySQL query has been resolved. I'll have to add a suffix "El TRI" to my query mySQL in my PHP script.

Problem solved.

who is the fastest xml parser?

Currently, I have a question parsering a huge xml, so I want to know what is the fastesr xml parser.

Thank you.

PS: Sorry for my English

We wrote our own, based on something we found on the web, I think it was called tiny XML. We did things like namespace that we didn't need treatment. It works on twice the speed of the RIM provided one. KXML is faster that RIM provided one as well?

You treat using SAX or DOM we use SAX. I think that SAX is the faster option.

You have to use XML? I've not actually directly compared, but it wouldn't surprise me if JSON is not faster.

[request] The XML parsing


7Eagle kids Volunteer6Volunteer IT5Usher Umum4Pendoa3Multimedia2Creative Ministry1Praise and Worship

This is my XML

My question is:

How to read on my blackberry and view it?

can I get the data as a String type?

Thank you very much

hope you can help me

Sorry for my bad English

package mypackage;
import javax.microedition.io.*;
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;
import net.rim.device.api.system.*;
import net.rim.device.api.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;

class XML_Parsing_Sample extends UiApplication{
    //creating a member variable for the MainScreen
    MainScreen _screen= new MainScreen();
    //string variables to store the values of the XML document
    String _node,_element;
    Connection _connectionthread;

    public static void main(String arg[]){
        XML_Parsing_Sample application = new XML_Parsing_Sample();
        //create a new instance of the application
        //and start the application on the event thread
        System.out.println("lalalala");
        application.enterEventDispatcher();
    }

    public XML_Parsing_Sample() {
        _screen.setTitle("XML Parsing");//setting title
        _screen.add(new RichTextField("Requesting....."));
        _screen.add(new SeparatorField());

        pushScreen(_screen); // creating a screen
        //creating a connection thread to run in the background
        _connectionthread = new Connection();
        _connectionthread.start();//starting the thread operation
    }

    public void updateField(String node, String element){
        //receiving the parsed node and its value from the thread
        //and updating it here
        //so it can be displayed on the screen
        String title="Title";
        _screen.add(new RichTextField(node+" : "+element));

        if(node.equals(title)){
            _screen.add(new SeparatorField());
        }
    }

    private class Connection extends Thread{
        public Connection(){
            super();

        }

        public void run(){
            // define variables later used for parsing
            Document doc;
            StreamConnection conn;

            try{
                //providing the location of the XML file,
                //your address might be different

                conn=(StreamConnection)Connector.open
                  ("http://localhost/ms/write.xml");
                //next few lines creates variables to open a
                //stream, parse it, collect XML data and
                //extract the data which is required.
                //In this case they are elements,
                //node and the values of an element
                DocumentBuilderFactory docBuilderFactory
                  = DocumentBuilderFactory. newInstance();
                DocumentBuilder docBuilder
                  = docBuilderFactory.newDocumentBuilder();
                docBuilder.isValidating();
                doc = docBuilder.parse(conn.openInputStream());
                doc.getDocumentElement ().normalize ();
                NodeList list=doc.getElementsByTagName("*");
                _node=new String();
                _element = new String();
                //this "for" loop is used to parse through the
                //XML document and extract all elements and their
                //value, so they can be displayed on the device

                for (int i=0;i
I used this source code, but nothing is displayed...
and don't forget, I am a new blackberry device programming, so I then I thank you if you can explain it in the explanation of "simple".
God bless you
			 Hello peter, how are you?
Thanks for the reply...
package mypackage;
import javax.microedition.io.*;
import javax.wireless.messaging.Message;

import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;
import net.rim.device.api.system.*;
import net.rim.device.api.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;

class XML_Parsing_Sample extends UiApplication{
    //creating a member variable for the MainScreen
    MainScreen _screen= new MainScreen();
    //string variables to store the values of the XML document
    String _node,_element;
    Connection _connectionthread;

    public static void main(String arg[]){
        XML_Parsing_Sample application = new XML_Parsing_Sample();

        //create a new instance of the application
        //and start the application on the event thread
        application.enterEventDispatcher();
    }

    public XML_Parsing_Sample() {
        _connectionthread = new Connection();
        _connectionthread.start();//starting the thread operation
        _screen.setTitle("XML Parsing");//setting title
        _screen.add(new RichTextField("Requesting....."));
        _screen.add(new SeparatorField());

        pushScreen(_screen); // creating a screen
        //creating a connection thread to run in the background
//        _connectionthread = new Connection();
//        _connectionthread.start();//starting the thread operation
    }

    public void updateField(String node, String element){
        //receiving the parsed node and its value from the thread
        //and updating it here
        //so it can be displayed on the screen
        String title="Title";
        _screen.add(new RichTextField(node+" : "+element));

        if(node.equals(title)){
            _screen.add(new SeparatorField());
        }
    }

    private class Connection extends Thread{
        public Connection(){
            super();

        }

        public void run(){
            // define variables later used for parsing
            Document doc;
            StreamConnection conn;

            try{
                //providing the location of the XML file,
                //your address might be different

                conn=(StreamConnection)Connector.open
                  ("http://localhost/ms/write.xml");
                //next few lines creates variables to open a
                //stream, parse it, collect XML data and
                //extract the data which is required.
                //In this case they are elements,
                //node and the values of an element
                DocumentBuilderFactory docBuilderFactory
                  = DocumentBuilderFactory. newInstance();
                DocumentBuilder docBuilder
                  = docBuilderFactory.newDocumentBuilder();
                docBuilder.isValidating();
                doc = docBuilder.parse(conn.openInputStream());
                doc.getDocumentElement ().normalize ();

                NodeList list=doc.getElementsByTagName("root");

                _node=new String();
                _element = new String();
                int n = list.getLength();
                String[] choices= new String[n];
                //this "for" loop is used to parse through the
                //XML document and extract all elements and their
                //value, so they can be displayed on the device

                for (int i=0;i
I already have the code, but nothing appeared.
I think that there is something wrong with my code (the one in bold)
and I get all confused, there are 2 methods for parsing xml, DOM and SAX.
I don't know what they are... and how to use...
can you help me pleaseee peter  ?
appriciate your help

XML Parsing Error: unexpected scanner place State: jar:file:///C:/Program%20Files%20 (x 86) /Mozilla%20Firefox/browser/omni.ja!/chrome/browser/content/browser/ab

Madam/Sir,

I log on this site everyday to make a contribution (http://theanimalrescuesite.greatergood.com/clickToGive/home.faces?siteId=3) and during the last three days, I was unable to connect. Today, I get this message: XML parsing error: State unexpected location parser: jar:file:///C:/Program%20Files%20 (x 86) /Mozilla%20Firefox/browser/omni.ja!/chrome/browser/content/browser/abt

Best regards

Peter

What Firefox locale (UI language) do you use?

Try a clean reinstall and delete the program folder before Firefox to (re) install a new copy of the current version of Firefox.
- Download the installer of Firefox and save the file to the desktop
  https://www.Mozilla.org/en-us/Firefox/all/
If possible to uninstall your current version of Firefox to clean the Windows registry and settings in the security software.
- Do NOT remove the "personal data" when you uninstall your current version of Firefox, because this will remove all profile folders and you lose personal data such as bookmarks and passwords including data profiles created by other versions of Firefox.
Delete the program folder Firefox before installing newly downloaded copy of the Firefox installer.
- (32-bit Windows) "C:\Program Files\Mozilla Firefox\"
- (Windows 64 bit) "C:\Program Files (x 86) \Mozilla.
- It is important to remove the Firefox program folder to delete all the files and make sure that there is no problem with the files that were the remains after uninstallation.
- http://KB.mozillazine.org/Uninstalling_Firefox
Your bookmarks and other personal data are stored in the Firefox profile folder and will not be affected by a uninstall and (re) install, but do NOT delete personal data when you uninstall Firefox which removes all Firefox profile folders and you lose your data.
- http://KB.mozillazine.org/Profile_folder_-_Firefox
- http://KB.mozillazine.org/Profile_backup
- http://KB.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Error after installing FF34 on FF33: XML Parsing Error: undefined entity WebIDE

Hello
After installing FF34 on FF33 I get a window with this message when I close windows firefox closes too:

XML parsing error: undefined entity
Location: chrome://browser/content/browser.xul
Line number 320, column 5: key < = "" command = "tools: WebIDE ' id = 'key_webide' keycode =" & amp; webide.keycode; "p =" ">."
< / key >

^

What Firefox locale (UI language) do you use?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/tools > Modules > Extensions) or if hardware acceleration is the cause of the problem.
- Put yourself in the DEFAULT theme: Firefox/tools > Modules > appearance
- Do NOT click on the reset button on the startup window Mode safe
- https://support.Mozilla.org/KB/safe+mode
- https://support.Mozilla.org/KB/troubleshooting+extensions+and+themes

Cannot add a new account to FireFTP. Get > > > XML Parsing Error: undefined entity location: chrome://fireftp/content/accountManager.xul line number 216, column 17:

I can't add an additional account to FireFTP. I get a yellow box with this title:

XML parsing error: undefined entity
Location: chrome://fireftp/content/accountManager.xul
216, column 17 line number:
< label of the menu = "" & charsetMenuMore1.label; "accesskey =" & charsetMenuMore1.accesskey; "datasources ="rdf:charset - menu"ref ="NC:BrowserMore1CharsetMenuRoot">

^

Do not understand the problem, can anyone help please?

Try the FireFTP update to the 2.0.20 latest version.
An update for Firefox 32 compatibility.
https://addons.Mozilla.org/en-us/Firefox/addon/FireFTP/

Since the update message "XML Parsing Error: undefined entity location: chrome://browser/content/browser.xul 238, column 5 line number:" all - tried help!

Since an automatic update ran I get the message

"XML Parsing Error: undefined entity".

Location: chrome://browser/content/browser.xul

Number of the line 238, column 5:

"< broadcaster-^" < br = "" id = "devtoolsMenuBroadcaster_ChromeDebugger" >
When I try to open Firefox. I had to go back to Internet Explorer - tried all suggested include removing and then reinstalling Firefox, but still not get Firefox to open - help!
< / diffuser >

Can you reproduce in Firefox Safe mode?
- SEE: Firefox in Safe Mode troubleshooting questions
It may be an acceleration addon or material affecting (by making the error).

I tried to view my tabs on other computers and received this message: XML Parsing Error: undefined entity location: on: sync-tabs line number 7, column 1: the window id = "tabs-display" ^ How can I fix?

"Error message has been: XML Parsing Error: undefined entity location: on: sync-tabs line number 7, column 1: window (weeks =" "3 =" "4 =" "5 =" "7 =" "< =" "^ =" "a =" "Add - on. =" "it y =" ' am = "" a = "" and = "" are = "" avg = "" believe = "" time = "" but = "" impossible = "" some = "" computers = "" firefox = "" for = "" I = "" I = "" id = 'tabs-view' in = "" installed.. = "" it = "" months) = "" = "" on. "" "" "" "" = "" or = "" other = "" p = "" paid = "" remember = "" running = "" sometimes = "" sync = "" tabs = "" version = "" look a = "" was = "" we = "" some = "" when = "" windows = "" worked = "" > < / window > "

Hello!

Can you give us some details? When this message display? Is in your phone or your computer? What is your language? More information you can give us the best.

You use the add-on and Firefox 4? If so, I'll ask you to disable and remove the add-on: Sync is now part of the Firefox browser and you don't need the add-on. [https://bugzilla.mozilla.org/show_bug.cgi?id=644894 some users solved this problem by uninstalling the add-on.]
]

Speed Dial gives me an XML parsing error: no element found

Have set up the Speed Dial and also set it as homepage. But when I then open Firefox, speed dial does not work and I get:
XML Parsing Error: no element found
Have retried reloading Speed Dial twice, and this happens every time. I am running Firefox 3.6.16.

There is an extension conflict. See this article: blog of Speed Dial on this problem article

I get random failures to load a page with the XML parsing error: entity not defined using firefox 4

This didn't happen with the version 3 x, nor with the previous v4. Using the arrow to the left and clicking on the previous page request usually works ok. It happens several times a day. Full error is

XML parsing error: undefined entity
Location: jar:jar:file:///C:/Documents%20and%20Settings/shirley/Application%20Data/Mozilla/Firefox/Profiles/4txi20jj.default/extensions/ [email protected]! /chrome/bandwidthmeter.jar!/content/netError.XHTML

392, column 33 line number:
& netOffline.longDesc;

I am also getting this error and have been able to understand that its caused by the Bandwidth_Meter_and_Diagnostics - 1.2.5.xpi. This deactivation seems to have stopped the error, but is a major nuisance.

in the bar of persona, I get a msg with XML Parsing Error start: can a very long message. FireFox 3.6.13

XML Parsing Error: not blocked cavities symbolic location: chrome://brower/content/brower.xul line number 1, column 13546: TOOLBAR > < COMMANDS >

If you have installed, disable a toolbar for Amazon, until an updated version is available. In addition, you can disable the toolbar, as it is at the origin of the problems for many users not being able to open new tabs.

XControls, XProblems, of XML parsing

I use a motor of Action (functional overall) to keep a reference to a DOM Document, with several States to manipulate the document. I call the engine action XControls on Init and Uninit VI, so that there are XML elements that are added/removed by the engine of the action when the XControl is added or deleted a VI. I am able to add many copies of the XControl without problems. Often I can go on adding and removing XControls several times. Randomly, however, I get a 15 warning associated with the XML parser, indicating that the Document DOM resource is not valid. From this moment, I'm more able to make changes to the document - I can view the XML associated with the DOM using XML Document to get, but am not able to manipulate it in any way. It is as if the object or reference has corrupted.

Y at - it a known bug related to this? If I run the motor of action independent of the XControl I don't get this problem. XControls tend to corrupt the references in external screw for the XControl?

I'm using LabVIEW 8.6. Thanks for any help.

LaRisa,.

It turns out that it is not necessarily a bug. The problem arises from the way LabVIEW automatically cleans references for the screws that are no longer active. I called the overall functioning of the XControls in the Init and Uninit capacity live after the creation and deletion of multiple copies of one the XControl on my front, LabVIEW must have decided that I used is no longer the global functional and empty its references VI.

To resolve this problem, I now initialize the functional overall in a hidden 'main' VI which runs as long as I have any XControls on the front panel. The case put the functional overall in a calling tree remains active rather than one that is more sporadic, such as the call XControl VI tree.

I can understand why there was a problem, given the unusual delivery XControls.

Thanks for following, I hope this helps others when generating XControls - they are really not so bad once you get used to their strange behavior.

Could not create constants/controls/indicators from the XML parser

Is there a reason I can't create a constant/control/indicator of the XML parser function ref (by right clicking)? I need to make the Subvi in build/read xml files, and it's really impossible without this ability.

LabVIEW 2012 f3

This bug has already been reported (CAR 357092) and should be corrected in the next service pack release. For now, here is a workaround:

"" "" "1. create an indicator of reference from functions ' programming ' file IO" XML "XML parser" New.vi.
2. right click on the new terminal of indicator 'DOM Document Out' and select Create > command (or indicator).

3. right click on the new indicator of control / and choose Select XML Parser Class. Then you can choose what class you need.

Analysis sax XML parser

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