I've read a bunch of similar posts, but i can't find a solution for my problem: i need to validate and parse xml files. (validation against xsd schema). The problem is that on my approach, when i run: mvn package and then run the jar file i get the following error:
java.lang.IllegalArgumentException: URI is not hierarchical
at java.io.File.<init>(Unknown Source)
at com.test.Main.main(Main.java:15)
Here is what i tried:
Later EDIT: source code
How can I pass an InputStream as parameter for multiple methods without getting stream closed exception? It is a correct approach?
public class DOMParserFile {
private InputStream inputXML;
private InputStream inputXSD;
private Set<CarPart> carParts;
public DOMParserFile(InputStream xmlFile, InputStream xsdFile) {
this.inputXML = xmlFile;
this.inputXSD = xsdFile;
carParts = new HashSet<CarPart>();
}
public void readFromXMLFile() throws Exception {
if (XMLFileValidator.validateAgainstXSD(inputXML, inputXSD)) {
DocumentBuilderFactory builderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder builder = builderFactory
.newDocumentBuilder();
Document doc = builder.parse(inputXML);
// get the carPart nodes
NodeList carPartList = doc.getElementsByTagName("carPart");
// store car parts into a list
for (int i = 0; i < carPartList.getLength(); i++) {
// build new car part object
CarPart carPart = new CarPart();
Node carPartNode = carPartList.item(i);
if (carPartNode.getNodeType() == Node.ELEMENT_NODE) {
Element elem = (Element) carPartNode;
// set id
carPart.setId(elem.getElementsByTagName("id").item(0)
.getTextContent());
// set name
carPart.setName(elem.getElementsByTagName("name").item(0)
.getTextContent());
// set description
carPart.setDescription(elem
.getElementsByTagName("description").item(0)
.getTextContent());
// set quantity
carPart.setQuantity(Integer.valueOf(elem
.getElementsByTagName("quantity").item(0)
.getTextContent()));
// set manufacturer
carPart.setPartManufact(elem
.getElementsByTagName("partManufacturer").item(0)
.getTextContent());
// set price
carPart.setPrice(Double.valueOf(elem
.getElementsByTagName("price").item(0)
.getTextContent()));
// get the list of available vehicles
NodeList vehicleNodeList = ((Element) carPartNode)
.getElementsByTagName("availableFor");
Set<Vehicle> availableVehicles = new HashSet<Vehicle>();
for (int j = 0; j < vehicleNodeList.getLength(); j++) {
Vehicle vehicle = new Vehicle();
Node vehicleNode = vehicleNodeList.item(j);
if (vehicleNode.getNodeType() == Node.ELEMENT_NODE) {
Element vehicleELement = (Element) vehicleNode;
// set vehicle's make
vehicle.setMake(vehicleELement
.getElementsByTagName("make").item(0)
.getTextContent());
// set vehicle's model
vehicle.setModel(vehicleELement
.getElementsByTagName("model").item(0)
.getTextContent());
// get the available list of years of fabrication
// for
// this vehicle
NodeList yearsList = ((Element) vehicleNode)
.getElementsByTagName("fabricationYear");
Set<Integer> years = new HashSet<Integer>();
for (int k = 0; k < yearsList.getLength(); k++) {
Node yearNode = yearsList.item(k);
if (yearNode.getNodeType() == Node.ELEMENT_NODE) {
Element yearElem = (Element) yearNode;
years.add(Integer.valueOf(yearElem
.getAttribute("yearAttr")));
}
}
vehicle.setFabYears(years);
availableVehicles.add(vehicle);
}
}
carPart.setVehicles(availableVehicles);
}
carParts.add(carPart);
}
}
}
public void printCarParts(){
for(CarPart p :carParts){
p.output();
}
}
}
XMLFileValidator class
public class XMLFileValidator {
public static boolean validateAgainstXSD(InputStream xmlFile, InputStream xsdFile)
{
try
{
SchemaFactory factory =
SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = factory.newSchema(new StreamSource(xsdFile));
Validator validator = schema.newValidator();
validator.validate(new StreamSource(xmlFile));
System.out.println("The XML file IS valid");
return true;
}
catch(Exception ex)
{
System.out.println("The XML file is NOT valid");
System.out.println("Reason: " + ex.getLocalizedMessage());
ex.printStackTrace();
return false;
}
}
}
Main class
public class Main {
public static void main(String args[]){
try {
InputStream inXML = Main.class.getResourceAsStream("/xml/carParts.xml");
InputStream inXSD = Main.class.getResourceAsStream("/xml/carPartsWarehouse.xsd");
//1. dom parsing method
System.out.println("**********************DOM PARSING METHOD************************");
DOMParserFile dom = new DOMParserFile(inXML,inXSD);
dom.readFromXMLFile();
dom.printCarParts();
//2. sax parsing method
System.out.println("***********************SAX PARSING METHOD*************************");
SAXParserFile sax = new SAXParserFile(inXML,inXSD);
sax.readDataFromXml();
sax.printCarParts();
//3. stax parsing method
System.out.println("***********************StAX PARSING METHOD*************************");
StAXParserFile stax = new StAXParserFile(inXML,inXSD);
stax.readFromXml();
stax.printCarParts();
} catch (URISyntaxException e1) {
e1.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
