I am using DOM to parse an XML string as in the following example. This works great except in one instance. The document which I am trying to parse looks like this:
<response requestID=\"1234\">
<expectedValue>Alarm</expectedValue>
<recommendations>For steps on how to resolve visit Website and use the search features for \"Alarm\"<recommendations>
<setting>Active</setting>
<response>
The code I used to parse the XML is as follows:
try {
DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xmlResult));
Document doc = db.parse(is);
NodeList nlResponse = doc.getElementsByTagName("response");
String[] String = new String[3]; //result entries
for (int i = 0; i < nlResponse.getLength(); i++) {
Element e = (Element) nlResponse.item(i);
int c1 = 0; //count for string array
NodeList ev = e.getElementsByTagName("expectedValue");
Element line = (Element) ev.item(0);
String[c1] = (getCharacterDataFromElement(line));
c1++;
NodeList rec = e.getElementsByTagName("recommendations");
line = (Element) rec.item(0);
String[c1] = (getCharacterDataFromElement(line));
c1++;
NodeList set = e.getElementsByTagName("settings");
line = (Element) set.item(0);
String[c1] = (getCharacterDataFromElement(line));
c1++;
I am able to parse the code and put the result into a string array (as opposed to the System.out.println()). With the current code, my string array looks as follows:
String[0] = "Alarm"
String[1] = "For steps on how to resolve visit"
String[2] = "Active"
I would like some way of being able to read the rest of the information within "Recommendations" in order to ultimately display the hyperlink (along with other output) in a TextView. How can I do this?
I apologize for my previous answer in assuming your xml was ill-formed.
I think what is happening is that your call to the getCharacterDataFromElement is only looking at the first child node for text, when it will need to look at all the child nodes and getting the href attribute as well as the text for the 2nd child node when looking at the recommendations node.
e.g. after getting the Element for recommendation
String srec = "";
NodeList nl = line.getChildNodes();
srec += nl.item(0).getTextContent();
Node n = nl.item(1);
NamedNodeMap nm = n.getAttributes();
srec += "" + n.getTextContent() + "";
srec += nl.item(2).getTextContent();
String[c1] = srec;
Related
I have to extract tag value from an xml Document that contains a single tag like below:
<error>Permission denied</error>
i have tried:
String xmlRecords = "<error>Permission denied</error>"
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xmlRecords));
Document doc = db.parse(is);
Node nodes = doc.getFirstChild();
String = nodes.getNodeValue();
but it dont works.
How can i do it ?
Use doc.getDocumentElement().getTextContent() to get the string Permission denied.
With DOM it´s util to know the structure of the XML document, and which node level are you looking for.
After get Document, you can use document.getElementsByTagName("root") to look for the root or father tags, and get the childs as a list to look for the item. Something like this:
NodeList listresults = document.getElementsByTagName('father/root element string');
NodeList nl = listresults.item(0).getChildNodes();
// Recorremos los nodos
for (int temp = 0; temp < nl.getLength(); temp++) {
Node node = nl.item(temp);
// Check if it is a node
if (node.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) node;
if(element.getNodeName().equals("error")){
// check the element
}
}
}
I hope this helps you.
just try following code.
String value = nodes.getTextContent();
You have to construct the string if you are using the above approach. You will get the string values of the tag name and content using the functions.
Tag name = nodes.getTextContent()
tag value = nodes.getLocalName()
I guess this is what you want
Element element = document.getDocumentElement();
NodeList errorTagList = element.getElementsByTagName("error");
if (errorTagList != null && errorTagList.getLength() > 0) {
NodeList errorTagSubList = errorTagList.item(0).getChildNodes();
if (errorTagSubList != null && errorTagSubList.getLength() > 0) {
String value = errorTagSubList.item(0).getNodeValue();
}
}
I try to examine with Java XPath an html string like this:
<app>
<elem class="A">value1</elem>
<elem class="B">value2a<br />value2b</elem>
<elem class="C">value3</elem>
</app>
Actually for obtain the elem's value i use this code
public String getValue(String xml, String classValue){
XPath xpath = XPathFactory.newInstance().newXPath();
InputSource source = new InputSource(new StringReader(xml));
DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
document = db.parse(source);
String xpathRequest = "//*[#class='"+classValue+"']/text()";
String value = xpath.evaluate(xpathRequest , document);
return value;
}
For classes A and C works fine, but when i ask the content of task with class B obtain only value2a
How i can get the complete string of node?
Simply run
String xpathRequest = "//*[#class='"+class+"']";
String value = this.xpath.evaluate(xpathRequest , document);
This will select the <elem> node and when converted to a String build the concatenation of all text content, e.g. Value2a Value2b
To get a list of all text contents below a Elem you need to select them as NodeSet:
String xpathRequest = "//*[#class='"+class+"']/text()";
NodeList textNodes = (NodeList)xpath.evaluate(xpathRequest , document, XPathConstants.NODESET);
ArrayList<String> texts = new ArrayList<>();
for (int i=0; i<textNodes.getLength(); i++)
texts.add(textNodes.item(i).getTextContent());
It is because xpath will return 2 value at this moment. Try below :-
List<WebElement> allprice = driver.findElements(By.xpath("//*[#class='B']/text()"));
for(WebElement a:WebElement allprice){
System.out.println(a.gettext());
}
I have a function I would like to loop through the xml and pull out certain tags.
My xml looks like this:
<Report_Data>
<Report_Entry>
<Company>Test</Company>
<Name>Test Name</Name>
<Division>Test Division</Division>
</Report_Entry>
<Report_Entry>
<Company>Test 2</Company>
<Name>Test Name 2</Name>
<Division>Test Division 2</Division>
</Report_Entry>
<Report_Entry>
<Company>Test 3</Company>
<Name>Test Name 3</Name>
<Division>Test Division 3</Division>
</Report_Entry>
</Report_Data>
Here is my code to loop through:
String comp, name, div, nodeName, NodeValue;
Node node;
try
{
XPathFactory xpathFactory = XPathFactory.newInstance();
XPath xpath = xpathFactory.newXPath();
InputSource source = new InputSource(new StringReader(coaFULL));
Document doc2 = (Document) xpath.evaluate("/", source, XPathConstants.NODE);
NodeList nodeList = (NodeList) xpath.compile("/Report_Data/Report_Entry").evaluate(doc2, XPathConstants.NODESET);
System.out.println("NODE LIST LENGTH =" + nodeList.getLength());
String nodeName, nodeValue = "";
Node node;
for(int i = 0; i < nodeList.getLength(); i++)
{
node = nodeList.item(i);
node = nodeList.item(i).getFirstChild();
nodeName = node.getNodeName();
nodeValue = node.getChildNodes().item( 0 ).getNodeValue();
if(nodeName.equals("Company"))
{
comp = nodeValue;
}
else if( nodeName.equals("Name"))
{
name = nodeValue;
}
else if(nodeName.equals("Division"))
{
div = nodeValue;
}
System.out.println("COMPANY = " + comp);
System.out.println("NAME = " + name);
System.out.println("DIVISION = " + div);
}
When I run my code, only the first value (company) gets an actual value, everything else is blank. I also tried adding node = nodeList.item(i).getNextSibling(); inside of each if statement to grab the next node, but that did not work.
My nodeList does have items in it, over 1000. Is there a problem with this statement: NodeList nodeList = (NodeList) xpath.compile("/Report_Data/Report_Entry").evaluate(doc2, XPathConstants.NODESET);?
Should it be: NodeList nodeList = (NodeList) xpath.compile("/Report_Data/Report_Entry/*").evaluate(doc2, XPathConstants.NODESET);
I tried it with the /* at the end but that caused the nodeList to have every single node in it. I want to make sure that when I grab a Report_Entry node, that I set the string variables to the correct values that correspond to each other.
==========================================================
Solution: It's ugly but my solution was to just go with one loop and use the second list of children nodes with hard coded values:
for(int i = 0; i < nodeList.getLength(); i++)
{
node = nodeList.item(i);
tempList = node.getChildNodes();
System.out.println("TEMP LIST LENGTH =" + tempList.getLength());
comp = tempList.item(0).getTextContent();
name = tempList.item(1).getTextContent();
div = tempList.item(2).getTextContent();
}
Thanks to #hage for his help.
Maybe it's because your node is only the first child?
node = nodeList.item(i);
node = nodeList.item(i).getFirstChild();
I guess nodeList.item(i) will give you the Report_Entrys and their first child is the Company.
You will need to loop over all children of the Company entry
EDIT (regarding your edit):
tempList.item(x) is the Company, Name, and then Division. When you get the first child of this one, you are at the text node (the actual content). And because you try to get the name of this node, you get the #text output (see this).
To get name and value of the nodes, try this (untested)
nodeName = tempList.item(x).getNodeName();
nodeValue = tempList.item(x).getTextContent();
Thanks for considering this question.
I'm reading a complex XML file, which as you can see in the code has 44 main "nodes". Each node has further nested elements and so on.
I have managed to read the info from the first node but it seems that after the first iteration, returns only null. What could I be missing?
for (int i=0; i<nodeList.getLength(); i++){
log(String.valueOf(i));
Element flightInfo = (Element)nodeList.item(i);
NodeList flights = flightInfo.getElementsByTagName("flight");
Element flight = (Element)flights.item(0);
String flightId = flight.getAttribute("id");
String airlineCode = flight.getAttribute("airlineCode");
String operationType = flight.getAttribute("operationType");
String flightRoute= flight.getAttribute("flightType");
String scheduledTime = flight.getAttribute("scheduledTime");
NodeList routingList = flight.getElementsByTagName("routingList");
Element iatas = (Element)routingList.item(0);
NodeList _iata = (iatas.getElementsByTagName("IATA"));
String iata = _iata.item(i).getFirstChild().getNodeValue();
NodeList times = flight.getElementsByTagName("times");
Element realTimes = (Element)times.item(0);
NodeList _realTime = (realTimes.getElementsByTagName("realTime"));
String realTime = _realTime.item(0).getFirstChild().getNodeValue();
NodeList means = flight.getElementsByTagName("means");
Element gates = (Element)means.item(0);
NodeList _gate = gates.getElementsByTagName("gate");
Element gate = (Element)_gate.item(0);
String gateId = gate.getAttribute("id");
Element bagClaimList = (Element)means.item(0);
NodeList bagClaims = bagClaimList.getElementsByTagName("bagClaim");
Element bagClaim = (Element)bagClaims.item(0);
String bagId = bagClaim.getAttribute("id");
Element standList = (Element)means.item(0);
NodeList stands = standList.getElementsByTagName("stand");
Element _stand = (Element)stands.item(i);
String standId = _stand.getAttribute("id");
NodeList remarks = flight.getElementsByTagName("flight");
Element remarkCodes = (Element)remarks.item(0);
NodeList _remarkCode = (remarkCodes.getElementsByTagName("remarkCode"));
String remarkCode = _remarkCode.item(0).getFirstChild().getNodeValue();
flightList.add(new Flight(flightId, airlineCode, operationType,iata, scheduledTime, iata, realTime, gateId, bagId, standId, remarkCode));
log("Added new flightInfo");
}
The XML I'm reading is the following:
<flightData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="file://c:/SITA/IKUSI FIDS/FIDS.XSD">
<flightInfo>
<flight id="AM2613" airlineCode="AM" flightNumber="2613" operationType="D" flightType="D" scheduledTime="2013-07-18T07:00:00">
<routingList>
<IATA>MTY</IATA>
</routingList>
<times>
<realTime>2013-07-18T07:00:00</realTime>
</times>
<means>
<gateList>
<gate id="N/14"/>
</gateList>
<bagClaimList>
<bagClaim id="2"/>
</bagClaimList>
<standList>
<stand id="5"/>
</standList>
</means>
<remarks>
<remarkCode>DEP</remarkCode>
</remarks>
</flight>
</flightInfo>
<flightInfo>...</flightInfo>
<flightInfo>...</flightInfo>
<flightInfo>...</flightInfo>
<flightInfo>...</flightInfo>
You'd be better off using JAXB: with the xsd file you will be able to generate java classes representing your model and won't have to write all this data extraction code.
I've got an app that consumes a .NET web service which returns an XML string of data. I'm trying to read this XML and insert it into the local SQLite DB but I'm having some trouble. Here's a sample of the xml:
<?xml version="1.0" encoding="utf-8" ?>
<string xmlns="RemoteWebService"><OpenIssues> <Table> <IssueID>15351</IssueID> <IssueSummary>Computer keeps crashing. This continues to be a problem</IssueSummary> <LocationName>West Side</LocationName> <Status>WIP</Status> <CustomerID>89755</CustomerID> <CustomerName>West Side Computers</CustomerName> <CustomerShortName>WSC</CustomerShortName> <Notes /> <STATUS1>Work In Progress</STATUS1> <SubmittedBy>WSC - Tom Johns</SubmittedBy> <EQ_Replaced>true</EQ_Replaced></Table> </OpenIssues></string>
Using DOM, I'm trying to parse the results like so:
private void GetLatestData(String response) throws ParserConfigurationException, SAXException, IOException{
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new StringReader(response)));
//Normalize the document.
doc.getDocumentElement().normalize();
//Get Root Node.
NodeList nodeList = doc.getElementsByTagName("Table");
Node node = nodeList.item(0);
//Get Child Nodes.
for(int i = 0; i < node.getChildNodes().getLength(); i++){
IssueInfo issue = new IssueInfo();
Node tempNode = node.getChildNodes().item(i);
if(tempNode.getNodeName().equalsIgnoreCase("IssueID")){
issue.setIssueNumber(Long.parseLong(tempNode.getTextContent()));
}
if(tempNode.getNodeName().equalsIgnoreCase("IssueSummary")){
issue.setIssueNumber(Long.parseLong(tempNode.getTextContent()));
}
if(issue.getIssueNumber() > 0 && issue.getIssueSummary() != null){
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
creator.InsertIssue(issue.getIssueNumber(), DateFormat.getDateInstance().format(new Date()), issue.getIssueSummary());
creator.close();
}
}
}
When I run it through the debugger, it gets "IssueID" just fine but how can I get it to pickup the next node "IssueSummary" right after that so I can insert the data at once? It seems like I need another loop somewhere, just not too sure where though.
If I understand your question correctly, this is what you may need to do.
Node node = nodeList.item(0);
Returns
<Table>
<IssueID>15351</IssueID>
<IssueSummary>Computer keeps crashing. This continues to be a problem</IssueSummary>
<Notes />
</Table>
node.getChildNodes().getLength();
Returns 3.
IssueInfo issue = new IssueInfo();
// Go through each child and find out node name and populate it.
for(int i = 0; i < node.getChildNodes().getLength(); i++){
Node tempNode = node.getChildNodes().item(i);
if(tempNode.getNodeName().equalsIgnoreCase("IssueID")){
issue.setIssueNumber(Long.parseLong(tempNode.getTextContent()));
}
if(tempNode.getNodeName().equalsIgnoreCase("IssueSummary")){
issue.setIssueNumber(Long.parseLong(tempNode.getTextContent()));
}
}
Move if logic out of the loop.
if(issue.getIssueNumber() > 0 && issue.getIssueSummary() != null){
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
creator.InsertIssue(issue.getIssueNumber(), DateFormat.getDateInstance().format(new Date()), issue.getIssueSummary());
creator.close();
}
Seems like a simple DOM traversing issue.
If you can guarantee the next node is the summary, you could try using the getNextSibling() method for nodes
I modified your code so I could call it without using your classes. This is the code I used:
private static void GetLatestData(String response) {
try{
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
/* the following 2 lines help you eliminate whitespace
from your xml DOM tree */
dbf.setValidating(true);
dbf.setIgnoringElementContentWhitespace(true);
DocumentBuilder db = dbf.newDocumentBuilder();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new StringReader(response)));
//Normalize the document.
doc.getDocumentElement().normalize();
//Get Root Node.
NodeList nodeList = doc.getElementsByTagName("Table");
Node node = nodeList.item(0);
long issueNumber;
String summary;
//Get Child Nodes.
for(int i = 0; i < node.getChildNodes().getLength(); i++){
Node tempNode = node.getChildNodes().item(i);
if(tempNode.getNodeName().equalsIgnoreCase("IssueID")){
issueNumber = (Long.parseLong(tempNode.getTextContent()));
Node summaryNode = tempNode.getNextSibling();
summary = summaryNode.getTextContent();
System.out.println(String.format("Issue # %d, Summary: %s" , issueNumber,summary));
}
}
}catch(Exception exception){
exception.printStackTrace();
}
}
and I call it like this:
GetLatestData("<OpenIssues> " +
"<Table> " +
"<IssueID>15351</IssueID>" +
"<IssueSummary>Computer keeps crashing. This continues to be a problem</IssueSummary> " +
"<Notes />" +
"</Table></OpenIssues> ");
from a simple Java class. It's working all right for me, at least. It prints out:
Issue # 15351, Summary: Computer keeps crashing. This continues to be a problem
*smacks forehead*
issue will never have more than one value set, as it's created anew for each child node.
Just swap the two lines to create issue only once:
IssueInfo issue = new IssueInfo();
for(int i = 0; i < node.getChildNodes().getLength(); i++){
...
You should probably move the final if outside the for too, so it's not executed more than once.
AND you'll need to actually set the summary in the second if not. You're setting the 'issue number' twice.
Finally found the resolution to this with the help of my coworker and some digging around. It should be noted that we changed the WebService that returned a string from DataSet.GetXml() to an XmlDocument.InnerXml. This removed the spaces in between the nodes and then we were able to move forward from there. Here's the final code we used:
public void GetLatestData(SoapPrimitive xml)throws ParserConfigurationException, SAXException, IOException{
//get the factory
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
//Using factory get an instance of document builder
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc;
//parse using builder to get DOM representation of the XML file
InputSource is = new InputSource(new StringReader(xml.toString()));
doc = db.parse(is);
//Clear out Issues table first.
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
creator.ClearIssueTable();
creator.close();
NodeList nodes = doc.getElementsByTagName("Table");
for(int i = 0; i < nodes.getLength(); i++) {
IssueInfo issue = new IssueInfo();
Element e = (Element)nodes.item(i);
issue.setIssueNumber(Long.parseLong(XMLfunctions.getValue(e, "IssueID")));
issue.setIssueSummary(XMLfunctions.getValue(e, "IssueSummary"));
issue.setDateReceived(DateFormat.format("MM/dd/yyyy hh:mm:ss", System.currentTimeMillis()).toString());
if(issue.getIssueNumber() > 0 && issue.getIssueSummary() != null){
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
creator.InsertIssue(issue.getIssueNumber(), issue.getDateReceived(), issue.getIssueSummary());
creator.close();
}
}
}
And here is the getValue method of the XMLfuntions class:
public static String getValue(Element item, String str) {
NodeList n = item.getElementsByTagName(str);
return XMLfunctions.getElementValue(n.item(0));
}
public final static String getElementValue( Node elem ) {
Node kid;
if( elem != null){
if (elem.hasChildNodes()){
for( kid = elem.getFirstChild(); kid != null; kid = kid.getNextSibling() ){
if( kid.getNodeType() == Node.TEXT_NODE ){
return kid.getNodeValue();
}
}
}
}
return "";
}
Definately not taking credit for this, I found it here:
Programmer XR and modified it to my needs.
Hopefully this will help other people out!