I want to parse this xml:
<sparql xmlns="http://www.w3.org/2005/sparql-results#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.w3.org/2001/sw/DataAccess/rf1/result2.xsd">
<head>
<variable name="uri"/>
<variable name="id"/>
<variable name="label"/>
</head>
<results distinct="false" ordered="true">
<result>
<binding name="uri"><uri>http://dbpedia.org/resource/Davis_&_Weight_Motorsports</uri></binding>
<binding name="label"><literal xml:lang="en">Davis & Weight Motorsports</literal></binding>
<binding name="id"><literal datatype="http://www.w3.org/2001/XMLSchema#integer">5918444</literal></binding>
<binding name="label"><literal xml:lang="en">Davis & Weight Motorsports</literal></binding>
</result></results></sparql>
This is my handler:
public class DBpediaLookupClient extends DefaultHandler{
public DBpediaLookupClient(String query) throws Exception {
this.query = query;
HttpMethod method = new GetMethod("some_uri&query=" + query2);
try {
client.executeMethod(method);
InputStream ins = method.getResponseBodyAsStream();
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser sax = factory.newSAXParser();
sax.parse(ins, this);
} catch (HttpException he) {
System.err.println("Http error connecting to lookup.dbpedia.org");
} catch (IOException ioe) {
System.err.println("Unable to connect to lookup.dbpedia.org");
}
method.releaseConnection();
}
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if (qName.equalsIgnoreCase("td") || qName.equalsIgnoreCase("uri") || qName.equalsIgnoreCase("literal")) {
tempBinding = new HashMap<String, String>();
}
lastElementName = qName;
}
public void endElement(String uri, String localName, String qName) throws SAXException {
if (qName.equalsIgnoreCase("uri") || qName.equalsIgnoreCase("literal") || qName.equalsIgnoreCase("td")) {
if (!variableBindings.contains(tempBinding))
variableBindings.add(tempBinding);
}
}
public void characters(char[] ch, int start, int length) throws SAXException {
String s = new String(ch, start, length).trim();
if (s.length() > 0) {
if ("td".equals(lastElementName)) {
if (tempBinding.get("td") == null) {
tempBinding.put("td", s);
}
}
else if ("uri".equals(lastElementName)) {
if (tempBinding.get("uri") == null) {
tempBinding.put("uri", s);
}
}
else if ("literal".equals(lastElementName)) {
if (tempBinding.get("literal") == null) {
tempBinding.put("literal", s);
}
}
if ("URI".equals(lastElementName) && s.indexOf("Category")==-1 && tempBinding.get("URI") == null) {
tempBinding.put("URI", s);
}
if ("Label".equals(lastElementName)) tempBinding.put("Label", s);
}
}
}
And this is the result:
key: uri, value: http:
key: literal, value: 5918444
key: literal, valueDavis
As you can see, it is separated from &
When I go through the character () function, I see that the length is wrong and depends on it and does not reach the end of the line that I want to get as a result.
I copied this part of the code, and I know little about the parser and handlers, I just know that a lot of what I got from code tracking, and everywhere I looked, said what should be &instead in the XML document, which takes place here.
What should I do in this code to get the full string without receiving it and the character?