Parsing a single XML node by JAXB

Hi,
we are developing an application to communicate with an XML webservice. Basically there are a lot of diffferent xsd files, one group are object types while another are in and out formats for action requests.
My question here is if it would be possible to parse an incoming XML string, look through it and let JAXB unmarshal only a couple of nodes from the XML. I would do this to parse my XML to a business object (containing other BO's) and because I would have to check on status information that came with the XML before trying to parse anything by JAXB.
Any advice is greatly appreciated.
Regards,
Steven

Above suggestion does not work for me.
Am currently using this solution
feed = event.result as XML;
switch(feed.channel.item.length()) {
case 0 :
trace('No results found');
break;
case 1 :
items = new ArrayCollection(ArrayUtil.toArray(feed.channel.item));
break;
default :
items = convertXmlToArrayCollection(feed);
Help me with a util function or something.

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You might try something like:
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Unmarshalling a DOM node to an XML file with JAXB

I'm trying to unmarshall a DOM node to an XML file using JAXB. However I keep receiving a NullPointerException. This only seems to occur when I create the DOM Node from scratch. The stack trace looks like the following:
java.lang.NullPointerException
        at com.sun.xml.bind.unmarshaller.SAXUnmarshallerHandlerImpl.startElement
(SAXUnmarshallerHandlerImpl.java:87)
        at com.sun.xml.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:109)
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Impl.java:149)
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Any insight into what I am doing wrong would be greatly appreciated!
Sample code and XSD follow...
Sample Code:
import itemlistsample.*;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
public class Main
public static void main(String[] args)
      try
          JAXBContext jc = JAXBContext.newInstance( "itemlistsample" );
          Unmarshaller u = jc.createUnmarshaller();
          * Set up DOM Node Document Object.
          DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
          dbf.setNamespaceAware(true);
          DocumentBuilder db = dbf.newDocumentBuilder();
          Document doc = db.newDocument();
          System.out.println();
          System.out.println();
          System.out.println("Create a DOM Node and unmarshall to an XML file");
          * Generate elements within DOM document
          Element itemListElt = (Element)doc.createElement("item_list");
          Element itemInfo = (Element)doc.createElement("item_info");
          Element name = (Element)doc.createElement("name");
          Element price = (Element)doc.createElement("price");
          * 3-Ring Binder @ 4.99
          name.appendChild(doc.createTextNode("3-Ring Binder"));
          itemInfo.appendChild(name);
          price.appendChild(doc.createTextNode("4.99"));
          itemInfo.appendChild(price);
          itemListElt.appendChild(itemInfo);
          * Large Paper Clips @ 1.23
          itemInfo = (Element)doc.createElement("item_info");
          name = (Element)doc.createElement("name");
          price = (Element)doc.createElement("price");
          name.appendChild(doc.createTextNode("Large Paper Clips"));
          itemInfo.appendChild(name);
          price.appendChild(doc.createTextNode("1.23"));
          itemInfo.appendChild(price);
          itemListElt.appendChild(itemInfo);
          doc.appendChild(itemListElt);
          * Display DOM document as a sanity check
          itemListElt = doc.getDocumentElement();
          System.out.println(itemListElt.getTagName());
          NodeList nl = itemListElt.getElementsByTagName("item_info");
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          * an instance of the generated JAXB class for
          * the root element. Stack trace occurs here!
          ItemListType il = (ItemListType)u.unmarshal(doc);
          * Marshal to an XML file
          Marshaller m = jc.createMarshaller();
          m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
          m.marshal( il, new FileOutputStream("item_new.xml") );
      catch (Exception e)
     e.printStackTrace();
public static void traverse(String indent, Node n)
    if (n != null)
      if (n.getNodeName() != null)
        System.out.println(indent + n.getNodeName());
        traverse(indent + " ", n.getFirstChild());
      if (n.getNodeValue() != null)
        System.out.println(indent + n.getNodeValue());
      traverse(indent, n.getNextSibling());
}Sample XSD:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
     <xsd:element name="item_list" type="ItemListType"/>
     <xsd:complexType name="ItemListType">
          <xsd:sequence>
               <xsd:element name="item_info" type="ItemInfoType" maxOccurs="unbounded"/>
          </xsd:sequence>
     </xsd:complexType>
     <xsd:complexType name="ItemInfoType">
          <xsd:sequence>
               <xsd:element name="name" type="xsd:string"/>
               <xsd:element name="price" type="xsd:double"/>
          </xsd:sequence>
     </xsd:complexType>
</xsd:schema>

Modified schema
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="item_list">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="item_info" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="item_info">
     <xsd:complexType>
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
     <xsd:element name="price" type="xsd:double"/>
     </xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>

How to Parse only single node

Hi:
I am DOM parser and i want to parse only single node. That is,
String xmlRecords = "<name>Anup</name>";
Here i want to parse name node.
So can any body help me in that?
Edited by: user11688398 on Jul 22, 2011 1:12 AM

Ram wrote:
Peter Lawrey wrote:
Using String manipulation is likely to be faster than using a DOM (assuming you had valid XML) however if performance were an issue you would use JDBC to access the database.What will happen, if OP has large number of nodes in the string? Will String manipulation be the faster one? String manipulation will be faster only if the string has one or two nodes. Otherwise it will be complicated.Direct String manipulation will always be faster. This is because you can make assumptions a full DOM will not make (as it needs to be able to read any type of XML document)
For this reason its best avoided unless you really need the speed as any subtle change in the XML could break a simplified parser.
Peter Lawrey wrote:
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hi folks,
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cheer, johannes

Thanks, works like a charm :)
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I have an index.jsp page with an HTML form (a simple "search" form, made of a text area and a submit button). Now, what I want to do is passing the parameter to two distinct servlets, each one dealing with a web service (one with ebay, the other one with last.fm).
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Here my code:
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It doesn't crash until the origional node is closed. In the example pic it is not unitl it reaches the last "close" does it crash. I also gets a valid node from the search. Also, the /* doesn't crash it but the Result XML is not the same.
I am attempting to teach myself some stuff on XML and XPath expressions and according to WC3:
/ selects the document root (which is always the parent of the document element)
Anyway, I don't ever plan on using / as a standalone search element but wasn't expecting the crash...
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Attachments:
Query XML Document.png ‏40 KB

Couldn't parse image from XML file using NSXMLParser

Hi all, Since i am newbie to developing iPhone application, i have problem in parsing XML data.
I use the following code for parsing XML file, this is RootViewController.h file
#import <UIKit/UIKit.h>
#import "SlideMenuView.h"
#define kNameValueTag 1
#define kColorValueTag 2
#define kSwitchTag 100
@class DetailViewController;
@interface RootViewController : UIViewController <UITableViewDataSource, UITableViewDelegate> {
DetailViewController *detailViewController;
UITableView *myTable;
UIActivityIndicatorView *activityIndicator;
UIButton *btn;
CGSize cellSize;
NSXMLParser *rssParser;
NSMutableArray *stories;
NSMutableDictionary *item;
NSString *currentElement;
NSMutableString *currentTitle, *currentDate, *currentSummary, *currentLink, *currentImage;
SlideMenuView *slideMenu;
NSMutableArray *buttonArray;
UIButton *rubic;
UIButton *buurt;
UIButton *beeld;
UILabel *lbl;
NSString *url;
@property (nonatomic, retain) UITableView *myTable;
@property (nonatomic, retain) DetailViewController *detailViewController;
@property (nonatomic, retain) SlideMenuView *slideMenu;
@property (nonatomic, retain) UIButton *btn;
@property (nonatomic, retain) NSMutableArray *buttonArray;
@property (nonatomic, retain) UIButton *rubic;
@property (nonatomic, retain) UIButton *buurt;
@property (nonatomic, retain) UIButton *beeld;
@property (nonatomic, retain) UILabel *lbl;
@end
below is the RootViewController.m file,
#import <Foundation/Foundation.h>
#import "RootViewController.h"
#import "DetailViewController.h"
#import "SlideMenuView.h"
@implementation RootViewController
@synthesize rubic, buurt, beeld, detailViewController, myTable, btn, buttonArray, slideMenu, lbl;
- (void)parseXMLFileAtURL:(NSString *)URL {
stories = [[NSMutableArray alloc] init];
//you must then convert the path to a proper NSURL or it won't work
NSURL *xmlURL = [NSURL URLWithString:URL];
// here, for some reason you have to use NSClassFromString when trying to alloc NSXMLParser, otherwise you will get an object not found error
// this may be necessary only for the toolchain
rssParser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL];
// Set self as the delegate of the parser so that it will receive the parser delegate methods callbacks.
[rssParser setDelegate:self];
// Depending on the XML document you're parsing, you may want to enable these features of NSXMLParser.
[rssParser setShouldProcessNamespaces:NO];
[rssParser setShouldReportNamespacePrefixes:NO];
[rssParser setShouldResolveExternalEntities:NO];
[rssParser parse];
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError {
NSString * errorString = [NSString stringWithFormat:@"Unable to download story feed from web site (Error code %i )", [parseError code]];
NSLog(@"error parsing XML: %@", errorString);
UIAlertView * errorAlert = [[UIAlertView alloc] initWithTitle:@"Error loading content" message:errorString delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[errorAlert show];
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
//NSLog(@"found this element: %@", elementName);
currentElement = [elementName copy];
if ([elementName isEqualToString:@"item"]) {
// clear out our story item caches...
item = [[NSMutableDictionary alloc] init];
currentTitle = [[NSMutableString alloc] init];
currentDate = [[NSMutableString alloc] init];
currentSummary = [[NSMutableString alloc] init];
currentLink = [[NSMutableString alloc] init];
currentImage = [[NSMutableString alloc] init];
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//NSLog(@"ended element: %@", elementName);
if ([elementName isEqualToString:@"item"]) {
// save values to an item, then store that item into the array...
[item setObject:currentTitle forKey:@"title"];
[item setObject:currentSummary forKey:@"summary"];
[item setObject:currentDate forKey:@"date"];
[item setObject:currentImage forKey:@"enclosure"];
[stories addObject:[item copy]];
NSLog(@"adding story: %@", currentTitle);
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//NSLog(@"found characters: %@", string);
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if ([currentElement isEqualToString:@"title"]) {
[currentTitle appendString:string];
} else if ([currentElement isEqualToString:@"description"]) {
[currentSummary appendString:string];
} else if ([currentElement isEqualToString:@"pubDate"]) {
[currentDate appendString:string];
} else if ([currentElement isEqualToString:@"enclosure"]) {
[currentImage appendString:string];
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[activityIndicator stopAnimating];
[activityIndicator removeFromSuperview];
NSLog(@"all done!");
NSLog(@"stories array has %d items", [stories count]);
[myTable reloadData];
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//self.title = @"GVA_iPhone";
//UIImage *img = [UIImage imageNamed: @"gva_v2.1.png"];
CGRect frame = [[UIScreen mainScreen] bounds];
UIView *aView = [[UIView alloc] initWithFrame:frame];
aView.backgroundColor = [UIColor grayColor];
self.view = aView;
[aView release];
lbl = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 33.0, 320.0, 30.0)];
lbl.backgroundColor = [UIColor colorWithRed:21.0/255.0 green:113.0/255.0 blue:194.0/255.0 alpha:1.0];
lbl.textColor = [UIColor whiteColor];
lbl.font = [UIFont boldSystemFontOfSize:18.0];
[self.view addSubview:lbl];
[lbl release];
buttonArray = [[NSMutableArray alloc] init];
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// Rounded rect is nice
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btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
// Give the buttons a width of 100 and a height of 30. The slide menu will take care of positioning the buttons.
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[btn setBackgroundImage:[UIImage imageNamed:@"topbg02.png"] forState:UIControlStateNormal];
lbl.text = @" Snel";
[btn addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
[buttonArray addObject:btn];
break;
case 2:
[btn setTitle:[NSString stringWithFormat:@" Binnenland", i+1] forState:UIControlStateNormal];
[btn setBackgroundImage:[UIImage imageNamed:@"topbg02.png"] forState:UIControlStateNormal];
[btn addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[buttonArray addObject:btn];
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case 3:
[btn setTitle:[NSString stringWithFormat:@" Buitenland", i+1] forState:UIControlStateNormal];
[btn setBackgroundImage:[UIImage imageNamed:@"topbg02.png"] forState:UIControlStateNormal];
[btn addTarget:self action:@selector(buttonTouched:) forControlEvents:UIControlEventTouchUpInside];
[buttonArray addObject:btn];
break;
[btn release];
slideMenu = [[SlideMenuView alloc]initWithFrameColorAndButtons:CGRectMake(0.0, 3.0, 330.0, 30.0) backgroundColor:[UIColor blackColor] buttons:buttonArray];
[self.view addSubview:slideMenu];
UITableView *aTableView = [[UITableView alloc] initWithFrame:CGRectMake(0.0, 63.0, 320.0, 310.0)];
aTableView.dataSource = self;
aTableView.delegate = self;
aTableView.rowHeight = 120;
self.myTable = aTableView;
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[self.view addSubview:myTable];
rubic = [[UIButton alloc]initWithFrame:CGRectMake(0.0, 370.0, 105.0, 50.0)];
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[rubic setBackgroundImage:[UIImage imageNamed:@"MOUSEOVER.png"] forState:UIControlStateNormal];
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lblRub.textColor = [UIColor whiteColor];
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[buurt setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
[buurt addTarget:self action:@selector(buttonBuurt:) forControlEvents:UIControlEventTouchUpInside];
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UILabel *lblGlo = [[UILabel alloc]initWithFrame:CGRectMake(112.0, 385.0, 59.0, 12.0)];
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lblGlo.backgroundColor = [UIColor clearColor];
lblGlo.textColor = [UIColor whiteColor];
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UIImageView *imgGlo = [[UIImageView alloc] initWithFrame:CGRectMake(173.0, 375.0, 39.0, 36.0)];
imgGlo.image = [UIImage imageNamed:@"globe_icon.png"];
[self.view addSubview:imgGlo];
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[beeld setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[beeld setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
[beeld addTarget:self action:@selector(buttonBeeld:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:beeld];
UILabel *lblCam = [[UILabel alloc]initWithFrame:CGRectMake(228.0, 385.0, 45.0, 12.0)];
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lblCam.font = [UIFont boldSystemFontOfSize:11.0];
lblCam.backgroundColor = [UIColor clearColor];
lblCam.textColor = [UIColor whiteColor];
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UIImageView *imgCam = [[UIImageView alloc] initWithFrame:CGRectMake(276.0, 375.0, 39.0, 36.0)];
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lbl.text = ((UIButton*)sender).currentTitle;
- (IBAction)buttonClicked:(id)sender {
lbl.text = ((UIButton*)sender).currentTitle;
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lbl.text = ((UIButton*)sender).currentTitle;
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[rubic setBackgroundImage:[UIImage imageNamed:@"MOUSEOVER.png"] forState:UIControlStateNormal];
[buurt setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
[beeld setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
-(void)buttonBuurt:(id)sender
[buurt setBackgroundImage:[UIImage imageNamed:@"MOUSEOVER.png"] forState:UIControlStateNormal];
[beeld setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
[rubic setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
-(void)buttonBeeld:(id)sender
[beeld setBackgroundImage:[UIImage imageNamed:@"MOUSEOVER.png"] forState:UIControlStateNormal];
[rubic setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
[buurt setBackgroundImage:[UIImage imageNamed:@"bottombg01.png"] forState:UIControlStateNormal];
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
// Release anything that's not essential, such as cached data
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[myTable release];
[detailViewController release];
[super dealloc];
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [stories count];
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UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"GVAiPhone"];
if (cell == nil) {
//CGRect cellFrame = CGRectMake(0, 0, 300, 65);
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//cell.accessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"arrow_icon.png"]];
CGRect nameValueRect = CGRectMake(5, 5, 275, 35);
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nameValue.tag = kNameValueTag;
nameValue.font = [UIFont fontWithName:@"Arial" size:15.0];
nameValue.lineBreakMode = UILineBreakModeWordWrap;
nameValue.numberOfLines = 2;
[cell.contentView addSubview:nameValue];
[nameValue release];
CGRect colorValueRect = CGRectMake(5, 38, 275, 65);
UILabel *colorValue = [[UILabel alloc] initWithFrame:colorValueRect];
colorValue.tag = kColorValueTag;
colorValue.font = [UIFont fontWithName:@"Arial" size:11.0];
colorValue.textColor = [UIColor colorWithRed:130.0/255.0 green:135.0/255.0 blue:139.0/255.0 alpha:1.0];
colorValue.lineBreakMode = UILineBreakModeWordWrap;
colorValue.textAlignment = UITextAlignmentLeft;
colorValue.numberOfLines = 6;
[cell.contentView addSubview:colorValue];
[colorValue release];
// Set up the cell
//cell.text = [theSimpsons objectAtIndex:indexPath.row];
//cell.hidesAccessoryWhenEditing = YES;
NSUInteger storyIndex = [indexPath row];
NSDictionary *rowData = [stories objectAtIndex:storyIndex];
UILabel *name = (UILabel *)[cell.contentView viewWithTag:kNameValueTag];
name.text = [rowData objectForKey:@"title"];
//name.lineBreakMode;
//UIImage *image =[UIImage imageNamed: currentImage];imageWithContentsOfFile
//image.size.width = 50;
//iimage.size.height = 50;
//cell.image = [UIImage imageNamed:currentImage];
cell.accessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"arrow_icon.png"]];
UILabel *color = (UILabel *)[cell.contentView viewWithTag:kColorValueTag];
color.text = [rowData objectForKey:@"summary"];
return cell;
@end
- here the actual problem is the xml node <enclosure> contains images but in using the method "didEndElement" , it doesn't parse into the <enclosure> node. ya so please help me in parsing and getting the image.
Waiting for your help !!
-Sathiya

Hi, how did you solve your problem in detail. I'm having the same problem with this rss-feed: www.spiegel.de/index.rss
I cannot parse the url of the images. I'm looking forward to your answer.

Parsing Very Slow on Node with 1MB of content

Hi,
I am processing and XML file that has one node that has a lengthy content string in it. The content string is actually HTML with the various escape sequences in place, but no additional XML nodes. So it looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<value>
~1MB of escaped HTML here
</value>
This is very slow (several minutes) parsing it into a DOM as well as just using the SAX parser. I am using JDK 1.3.1 and have tried both the 1.4.4 and 2.4 versions of Xerces. The problem does not appear to be the escape characters since we have tried changing the node content to base 64 encoding with slower results.
Any help will be greatly appreciated.
MR

Mind you, minutes for 1Mb seems extreme by any measure.
If the document is really that simple, then you can process it directly without going through an XML parser.
Sylvia.

Unknown tag name: [session] in XML node: [toplink-configuration].

I get this exception at runtime, running TOPLink as persistence manager for my BMP WL7 beans. My sessions.xml validates according to the sessions_4_5.dtd file supplied with TOPLink, but yet I get this excpetion. Below is my complete sessions.xml, as well as teh header of the exception stack
Sessions.xml
<?xml version="1.0" encoding="US-ASCII"?>
<!DOCTYPE toplink-configuration PUBLIC "-//Oracle Corp.//DTD TopLink for JAVA 4.5//EN" "sessions_4_5.dtd">
<toplink-configuration>
     <session>
          <name>entitySession</name>
          <project-class>za.co.discovery.legalentity.persistence.TOPLinkProject</project-class>
          <session-type>
               <server-session/>
          </session-type>
          <login>
               <uses-external-connection-pool>true</uses-external-connection-pool>
               <uses-external-transaction-controller>true</uses-external-transaction-controller>
          </login>
          <external-transaction-controller-class>oracle.toplink.jts.wls.WebLogicJTSExternalTransactionController</external-transaction-controller-class>
          <enable-logging>true</enable-logging>
          <logging-options>
               <log-debug>false</log-debug>
               <log-exceptions>true</log-exceptions>
               <log-exception-stacktrace>true</log-exception-stacktrace>
               <print-thread>false</print-thread>
               <print-session>true</print-session>
               <print-connection>true</print-connection>
               <print-date>false</print-date>
          </logging-options>
     </session>
</toplink-configuration>
and the stack trace:
1) testAll(za.co.discovery.legalentity.ejb.test.ClassVersionTest)java.rmi.RemoteException: Exception in ejbFindByPrimaryKey; nested exception is:
     EXCEPTION [TOPLINK-7094] (TopLink - 9.0.3 (Build 423)): oracle.toplink.exceptions.ValidationException
EXCEPTION DESCRIPTION: LOCAL EXCEPTION STACK:
EXCEPTION DESCRIPTION: Several [2] SessionLoaderExceptions were thrown:
EXCEPTION [TOPLINK-9002] (TopLink - 9.0.3 (Build 423)): oracle.toplink.exceptions.SessionLoaderException
EXCEPTION DESCRIPTION: Unable to load Project class [za.co.discovery.legalentity.persistence.TOPLinkProject].
INTERNAL EXCEPTION: java.lang.ExceptionInInitializerError
EXCEPTION [TOPLINK-9001] (TopLink - 9.0.3 (Build 423)): oracle.toplink.exceptions.SessionLoaderException
EXCEPTION DESCRIPTION: Unknown tag name: [session] in XML node: [toplink-configuration].
INTERNAL EXCEPTION: java.lang.reflect.InvocationTargetException
TARGET INVOCATION EXCEPTION: java.lang.NullPointerException
     at oracle.toplink.exceptions.SessionLoaderException.finalException(Unknown Source)
     at oracle.toplink.tools.sessionconfiguration.XMLLoader.load(Unknown Source)
     at oracle.toplink.tools.sessionmanagement.SessionManager.getSession(Unknown Source)
     at oracle.toplink.tools.sessionmanagement.SessionManager.getSession(Unknown Source)
     at oracle.toplink.ejb.EJBDataStore.getSession(Unknown Source)
     at oracle.toplink.ejb.EJBDataStore.getDescriptor(Unknown Source)
     at oracle.toplink.ejb.EJBDataStore.getWrapperPolicy(Unknown Source)
     at oracle.toplink.ejb.EJBDataStore.findByPrimaryKey(Unknown Source)
     at oracle.toplink.ejb.bmp.BMPEntityBase.findByPrimaryKey(Unknown Source)
     at za.co.discovery.legalentity.ejb.LegalEntityEJB.ejbFindByPrimaryKey(LegalEntityEJB.java:67)
all help appreciated!
thanks
Alwyn ([email protected])

Hi Alwyn
I've seen this exact problem before when the sessions.xml file has been parsed by a different version of xerces from the one provided in TopLink. Is this a possibility?
JIM

ORA-31167: XML nodes over 64K in size cannot be inserted

Hi there,
we have just recently upgraded our database from 9i r2 to 10g (Oracle Database 10g Enterprise Edition Release 10.2.0.3.0).
The following code was working fine in 9i but is now failing with the error listed in the subject of this thread. I am not actually inserting data at all but merely parsing it. Is there any way I can avoid this error while still performing the parse in PL/SQL?
begin
select test.b2c(xml) into xml_clob
from sde.gdb_usermetadata, admin.sn_resource_metadata
where id = rm_mdid
and rm_rid = resource_id;
v_parser := xmlparser.newParser;
XMLParser.parseClob(v_parser,xml_clob);
xml_doc := xmlparser.getDocument(v_parser);
xmlparser.freeParser(v_parser);
dbms_lob.freetemporary(xml_clob);
end;
The code actually fails at the line XMLParser.parseClob(v_parser,xml_clob);
Many thanks,
David
Message was edited by:
dverna

Hi A_Non,
many thanks for that. I'd already seen that posting and was just wondering if there was still any way to parse XML within a PL/SQL procedure rather than exporting a CLOB to a client or other server side program.
Currently, the parse is being done to provide information to an ASP web application. Based on Mark's suggestion i'd have to export the clob to the ASP and perform the processing using the MSXML object. Not a huge inconvenience in this case but i'd prefer to have everything contained in the DB.
I have other procedures that parse the same XML documents and load relational tables based on the data contained therein. As these are all scheduled to run overnight in Oracle i'd rather not have to rewrite the code in other languages when Oracle was handling it quite nicely in 9i (it's annoying because there is only 1 node >64k which I don't actually need anyway).
Anyway, thanks for the pointer and if you or anyone else has further ideas they'd be much appreciated. I think an upgrade to 11g may be someway off!
Cheers,
David

How to Display number of Records in Single XML file

Hi,
In My SAP MDM DataManager I have a table called Location it contains 3 Fields. And Having 10000 Records in that.
When I am trying to make xml file through MDM Syndication Manager it is creating 10000 xml files.
I don't want to that much files and I need all the Records in a Single XML File, how can I do that in MDM Syndication server.
I have changed xsd:element attribute maxoccurs="unbound"
but there is no property like that.
I am using SAP MDM 5.5 with SP 4.
how can I see all my records in single XML file.
Thanks and Regards,
Ashok.

hi,
To syndicate all XML records in single XML file:
follow the steps:
1. u201CIn the Destination Items pane, click on the root ( for product repository - Product).
2. u201CIn the Properties pane, for the Repeatable XML Node field, uncheck its u201CInheritu201D flag and check its flag in the u201CValueu201D column as shown below. This will cause all records to be syndicated into one XML file.u201D
3. In the item mapping tab:
In the Source Items page, select the root node,
. u201CIn the Destination Items pane, select the Products node and map it,
and do the remaining source and destination fields mapping,
now you will get all records in single XML file.
hope this may help you,
Regards,
Srinivas

Parsing a single string

I apologize if the question is trivial, but I have been working on it for a while.
I would like to send a single string containing one XML element to the parser. I can't figure out a way to do it.
Of course, I can easily parse files, but for communication purposes, I need a way to parse just single elements, that are stored in separate strings, and find out their contents.
Thank you,
Sol

Can't your parser accept a Reader as input? Check its API documentation to find that out. If it can, then "whatever.parse(new StringReader(yourXmlString))" is what you want.

Dashes in xml node names

I need to parse an xml document returned by a web-service. It does not, nor do we want it to, follow any SOAP or wdsl standard.. However I still need to parse it (hence the flex becomes unflexible).
Some of the nodes names in the xml document have dashes it is.. (ex. <node-name></node-name>) However flex does not let me access these nodes..
If I try and parse a mx.rpc.events.ResultEvent thus :
someObject = event.result.root.node-name as someObjectType;
I get an error: 1120: Access of undefined property structure. ... line 16 1253139374175 81
However when I traverse the event object in the debugger.. the result.root.node-name object is in debugger as an ObjectProxy.. so what gives? I have to use boring one word node names? Is Flex so inFlexible?

Hey! thanks for the advice! I did try this, but I don't think I was using the object correctly. I wast to try and bind the text value of an xml node to a control Object..
Back to the books, then
Thanks again,

Parsing a single XML node by JAXB

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