I am trying to unmarshal an XML.
This is what my XML looks like
<DeviceInventory2Response xmlns="http://tempuri.org/">
<DeviceInventory2Result xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<Obj123 xmlns="">
<Id>1</Id>
<Name>abc</Name>
</Obj123>
<Obj456 xmlns="">
.
.
.
I am trying to get Id and Name under Obj123. However when I run my unmarshal command I get the following error.
An Error: javax.xml.bind.UnmarshalException: unexpected element (uri:"http://tempuri.org/", local:"DeviceInventory2Response"). Expected elements are (none)
My code looks like this in the main class:
Obj123 myObj123 = (Obj123) unmarshaller.unmarshal(inputSource);
And my class for Obj123 looks like this:
package com.myProj.pkg;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
#XmlRootElement(name="Obj123")
public class Obj123 {
private String Id;
private String Name;
public String getId() {
return Id;
}
public String getName() {
return Name;
}
}
I thought by setting my XMLRootElement that I should be able to skip the first 2 lines of my XML but that doesn't seem to be happening. Any ideas?
Edit:
This is how my JAXB Context is made:
JAXBContext jaxbContext = JAXBContext.newInstance();
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
Obj123 obj123 = (Obj123) unmarshaller.unmarshal(xmlStreamReader);
I solved the problem by adding
#XmlRootElement(name="abc_xxx") to the Root class.(where abc_XXX is the root tag of your XML)
The JAXB classes generated by eclipse didn't add this annotation to my root class.
JAXB implementations will try to match on the root element of the document (not on a child element).
If you want to unmarshal to the middle of an XML document then you can parse the document with StAX advance the XMLStreamReader to the desired element and then unmarshal that.
For More Information
http://blog.bdoughan.com/2012/08/handle-middle-of-xml-document-with-jaxb.html
UPDATE
now I am getting the following error. An Error:
javax.xml.bind.UnmarshalException - with linked exception:
[javax.xml.bind.UnmarshalException: unexpected element (uri:"",
local:"Obj123"). Expected elements are (none)].
A JAXBContext only knows about the classes you tell it about. Instead of:
JAXBContext jaxbContext = JAXBContext.newInstance();
You need to do:
JAXBContext jaxbContext = JAXBContext.newInstance(Obj123.class);
Use ObjectFactory class instead like
JAXBContext jaxbContext = null;
try {
jaxbContext = JAXBContext.newInstance(ObjectFactory.class);
} catch (JAXBException e) {
e.printStackTrace();
}
JAXBElement<ObjectFactory> applicationElement = null;
try {
applicationElement = (JAXBElement<ObjectFactory>)
unmarshaller.unmarshal(Thread.currentThread().getClass()
.getResourceAsStream(fileName));
} catch (JAXBException e) {
e.printStackTrace();
}
Try this and will resolve above problem. My problem has been resolved.
Related
I'm trying to validate an XML file against a number of different schemas (apologies for the contrived example):
a.xsd
b.xsd
c.xsd
c.xsd in particular imports b.xsd and b.xsd imports a.xsd, using:
<xs:include schemaLocation="b.xsd"/>
I'm trying to do this via Xerces in the following manner:
XMLSchemaFactory xmlSchemaFactory = new XMLSchemaFactory();
Schema schema = xmlSchemaFactory.newSchema(new StreamSource[] { new StreamSource(this.getClass().getResourceAsStream("a.xsd"), "a.xsd"),
new StreamSource(this.getClass().getResourceAsStream("b.xsd"), "b.xsd"),
new StreamSource(this.getClass().getResourceAsStream("c.xsd"), "c.xsd")});
Validator validator = schema.newValidator();
validator.validate(new StreamSource(new StringReader(xmlContent)));
but this is failing to import all three of the schemas correctly resulting in cannot resolve the name 'blah' to a(n) 'group' component.
I've validated this successfully using Python, but having real problems with Java 6.0 and Xerces 2.8.1. Can anybody suggest what's going wrong here, or an easier approach to validate my XML documents?
So just in case anybody else runs into the same issue here, I needed to load a parent schema (and implicit child schemas) from a unit test - as a resource - to validate an XML String. I used the Xerces XMLSchemFactory to do this along with the Java 6 validator.
In order to load the child schema's correctly via an include I had to write a custom resource resolver. Code can be found here:
https://code.google.com/p/xmlsanity/source/browse/src/com/arc90/xmlsanity/validation/ResourceResolver.java
To use the resolver specify it on the schema factory:
xmlSchemaFactory.setResourceResolver(new ResourceResolver());
and it will use it to resolve your resources via the classpath (in my case from src/main/resources). Any comments are welcome on this...
http://www.kdgregory.com/index.php?page=xml.parsing
section 'Multiple schemas for a single document'
My solution based on that document:
URL xsdUrlA = this.getClass().getResource("a.xsd");
URL xsdUrlB = this.getClass().getResource("b.xsd");
URL xsdUrlC = this.getClass().getResource("c.xsd");
SchemaFactory schemaFactory = schemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
//---
String W3C_XSD_TOP_ELEMENT =
"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n"
+ "<xs:schema xmlns:xs=\"http://www.w3.org/2001/XMLSchema\" elementFormDefault=\"qualified\">\n"
+ "<xs:include schemaLocation=\"" +xsdUrlA.getPath() +"\"/>\n"
+ "<xs:include schemaLocation=\"" +xsdUrlB.getPath() +"\"/>\n"
+ "<xs:include schemaLocation=\"" +xsdUrlC.getPath() +"\"/>\n"
+"</xs:schema>";
Schema schema = schemaFactory.newSchema(new StreamSource(new StringReader(W3C_XSD_TOP_ELEMENT), "xsdTop"));
The schema stuff in Xerces is (a) very, very pedantic, and (b) gives utterly useless error messages when it doesn't like what it finds. It's a frustrating combination.
The schema stuff in python may be a lot more forgiving, and was letting small errors in the schema go past unreported.
Now if, as you say, c.xsd includes b.xsd, and b.xsd includes a.xsd, then there's no need to load all three into the schema factory. Not only is it unnecessary, it will likely confuse Xerces and result in errors, so this may be your problem. Just pass c.xsd to the factory, and let it resolve b.xsd and a.xsd itself, which it should do relative to c.xsd.
From the xerces documentation :
http://xerces.apache.org/xerces2-j/faq-xs.html
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;
...
StreamSource[] schemaDocuments = /* created by your application */;
Source instanceDocument = /* created by your application */;
SchemaFactory sf = SchemaFactory.newInstance(
"http://www.w3.org/XML/XMLSchema/v1.1");
Schema s = sf.newSchema(schemaDocuments);
Validator v = s.newValidator();
v.validate(instanceDocument);
I faced the same problem and after investigating found this solution. It works for me.
Enum to setup the different XSDs:
public enum XsdFile {
// #formatter:off
A("a.xsd"),
B("b.xsd"),
C("c.xsd");
// #formatter:on
private final String value;
private XsdFile(String value) {
this.value = value;
}
public String getValue() {
return this.value;
}
}
Method to validate:
public static void validateXmlAgainstManyXsds() {
final SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
String xmlFile;
xmlFile = "example.xml";
// Use of Enum class in order to get the different XSDs
Source[] sources = new Source[XsdFile.class.getEnumConstants().length];
for (XsdFile xsdFile : XsdFile.class.getEnumConstants()) {
sources[xsdFile.ordinal()] = new StreamSource(xsdFile.getValue());
}
try {
final Schema schema = schemaFactory.newSchema(sources);
final Validator validator = schema.newValidator();
System.out.println("Validating " + xmlFile + " against XSDs " + Arrays.toString(sources));
validator.validate(new StreamSource(new File(xmlFile)));
} catch (Exception exception) {
System.out.println("ERROR: Unable to validate " + xmlFile + " against XSDs " + Arrays.toString(sources)
+ " - " + exception);
}
System.out.println("Validation process completed.");
}
I ended up using this:
import org.apache.xerces.parsers.SAXParser;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
import java.io.IOException;
.
.
.
try {
SAXParser parser = new SAXParser();
parser.setFeature("http://xml.org/sax/features/validation", true);
parser.setFeature("http://apache.org/xml/features/validation/schema", true);
parser.setFeature("http://apache.org/xml/features/validation/schema-full-checking", true);
parser.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation", "http://your_url_schema_location");
Validator handler = new Validator();
parser.setErrorHandler(handler);
parser.parse("file:///" + "/home/user/myfile.xml");
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException ex) {
e.printStackTrace();
}
class Validator extends DefaultHandler {
public boolean validationError = false;
public SAXParseException saxParseException = null;
public void error(SAXParseException exception)
throws SAXException {
validationError = true;
saxParseException = exception;
}
public void fatalError(SAXParseException exception)
throws SAXException {
validationError = true;
saxParseException = exception;
}
public void warning(SAXParseException exception)
throws SAXException {
}
}
Remember to change:
1) The parameter "http://your_url_schema_location" for you xsd file location.
2) The string "/home/user/myfile.xml" for the one pointing to your xml file.
I didn't have to set the variable: -Djavax.xml.validation.SchemaFactory:http://www.w3.org/2001/XMLSchema=org.apache.xerces.jaxp.validation.XMLSchemaFactory
Just in case, anybody still come here to find the solution for validating xml or object against multiple XSDs, I am mentioning it here
//Using **URL** is the most important here. With URL, the relative paths are resolved for include, import inside the xsd file. Just get the parent level xsd here (not all included xsds).
URL xsdUrl = getClass().getClassLoader().getResource("my/parent/schema.xsd");
SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = schemaFactory.newSchema(xsdUrl);
JAXBContext jaxbContext = JAXBContext.newInstance(MyClass.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
unmarshaller.setSchema(schema);
/* If you need to validate object against xsd, uncomment this
ObjectFactory objectFactory = new ObjectFactory();
JAXBElement<MyClass> wrappedObject = objectFactory.createMyClassObject(myClassObject);
marshaller.marshal(wrappedShipmentMessage, new DefaultHandler());
*/
unmarshaller.unmarshal(getClass().getClassLoader().getResource("your/xml/file.xml"));
If all XSDs belong to the same namespace then create a new XSD and import other XSDs into it. Then in java create schema with the new XSD.
Schema schema = xmlSchemaFactory.newSchema(
new StreamSource(this.getClass().getResourceAsStream("/path/to/all_in_one.xsd"));
all_in_one.xsd :
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:ex="http://example.org/schema/"
targetNamespace="http://example.org/schema/"
elementFormDefault="unqualified"
attributeFormDefault="unqualified">
<xs:include schemaLocation="relative/path/to/a.xsd"></xs:include>
<xs:include schemaLocation="relative/path/to/b.xsd"></xs:include>
<xs:include schemaLocation="relative/path/to/c.xsd"></xs:include>
</xs:schema>
Please help!
I am trying to unmarshall the below XML STRING to a java class. The requirement is only to grab some elements and not all:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<?xml-stylesheet type='text/xsl' href='http://myService/rs/../xsl/searchRetrieveResponse.xsl'?>
<searchRetrieveResponse
xmlns="http://www.loc.gov/zing/srw/"
xmlns:srw5="info:srw/extension/5/restrictorSummary">
<version>1.2</version>
<numberOfRecords>1</numberOfRecords>
<records>
<record>
<recordSchema>info:srw/schema/1/CDFXML</recordSchema>
<recordPacking>xml</recordPacking>
<recordData>
<institution active="true" test="true" training="false"
xmlns="info:rfa/rfaRegistry/xmlSchemas/institution"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="info:rfa/rfaRegistry/xmlSchemas/institution http://worldcat.org/registry/xsd/collections/Institutions/institution.xsd">
<identifier>info:rfa/Institutions/113500</identifier>
<versionID>2016-02-17T20:01:22.355Z</versionID>
<nameLocation
xmlns="info:rfa/rfaRegistry/xmlSchemas/institutions/nameLocation"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="info:rfa/rfaRegistry/xmlSchemas/institutions/nameLocation http://worldcat.org/registry/xsd/collections/Institutions/nameLocation.xsd">
<lastUpdated>2015-09-27</lastUpdated>
<lastUpdatedTime>03:06:43</lastUpdatedTime>
<first>First Name</first>
</nameLocation>
<identifiers
xmlns="info:rfa/rfaRegistry/xmlSchemas/institutions/identifiers"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="info:rfa/rfaRegistry/xmlSchemas/institutions/identifiers http://worldcat.org/registry/xsd/collections/Institutions/identifiers.xsd">
<lastUpdated>2016-02-17</lastUpdated>
<lastUpdatedTime>15:01:22</lastUpdatedTime>
<age>23</age>
<age>55</age>
</identifiers>
<opac available="true" intranetOnly="false"
xmlns="info:rfa/rfaRegistry/xmlSchemas/institutions/opac"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="info:rfa/rfaRegistry/xmlSchemas/institutions/opac http://worldcat.org/registry/xsd/collections/Institutions/opac.xsd">
<lastUpdated>2009-12-03</lastUpdated>
<lastUpdatedTime>17:43:52</lastUpdatedTime>
<url1>facebook</url1>
<url2>google</url2>
<prefix/>
</opac>
</institution>
</recordData>
<recordPosition>1</recordPosition>
</record>
</records>
</searchRetrieveResponse>
From this file I am only looking to map these tags in my java class below
<first> <age> <age> <url1> <url2>
Java class:
#XmlAccessorType(XmlAccessType.FIELD)
#XmlRootElement(name = "searchRetrieveResponse")
public class MyInfo {
#XmlElement(name = "first")
private String first;
#XmlElement(name = "age")
private List<String> age;
#XmlElement(name = "url1")
private String url1;
#XmlElement(name = "url2")
private String url2;
}
Unmarshalling implementation:
public static void main(String[] args) {
JAXBContext jaxbContext;
try {
jaxbContext = JAXBContext.newInstance(MyInfo.class);
Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
MyInfo myInfo = (MyInfo) jaxbUnmarshaller.unmarshal(
new StringReader( * * MY_XML_STRING **));
catch(JAXBException ex){
log.error("Error - ", ex);
}
}
Error:
javax.xml.bind.UnmarshalException: unexpected element (uri:"http://www.loc.gov/zing/srw/", local:"searchRetrieveResponse"). Expected elements are <{}searchRetrieveResponse>
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.handleEvent(UnmarshallingContext.java:744)
at com.sun.xml.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:262)
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext$DefaultRootLoader.childElement(UnmarshallingContext.java:1149)
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext._startElement(UnmarshallingContext.java:574)...
In My gradle dependencies:
jaxbApi : "javax.xml.bind:jaxb-api:2.4.0-b180830.0359",
jaxbImpl : "com.sun.xml.bind:jaxb-impl:2.4.0-b180830.0438",
jaxbCore : "org.glassfish.jaxb:jaxb-core:2.3.0.1",
And java 11 is the complier.
Add: , namespace = "http://www.loc.gov/zing/srw/"
to your #XmlRootElement:
#XmlRootElement(name = "searchRetrieveResponse", namespace = "http://www.loc.gov/zing/srw/")
...this is what the error message complains about: A mismatch in the namespace!
unexpected element (uri:"http://www.loc.gov/zing/srw/", local:"searchRetrieveResponse").
Expected elements are <{}searchRetrieveResponse>
The {} means empty ("") namespace, in this case.
If namespace omit, it defaults to "##default"...
If the value is "##default", then the XML namespace name is derived from the package of the class ( XmlSchema ). If the package is unnamed, then the XML namespace is the default empty namespace.
EDIT:
In your scenario, I would generate the classes with (built-in) xjc (command line tool ...in ${java.home}/bin)
xjc -d generated <schema>
...where gnerated will be the output folder for the classes (.java files) and <schema> can be a file URL or (structured)directory (with your (readonly) xsd(s)).
Once successfully generated, copy the content of generated into your "main source folder", check it in(, use it) and only change it, when xsd changes.
I am using the following code to do unmarshalling:
#Override
public String marshal(Object document) throws JAXBException {
Class clazz = document.getClass();
JAXBContext context =
JAXBContext.newInstance( clazz.getPackage().getName() );
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
StringWriter sw = new StringWriter();
marshaller.marshal(document, sw);
String xml = sw.toString();
return xml;
}
The result is like this :
<IlpQuoteInput QuoteId="2888284000185" xmlns="http://www.abc.com">
<Common IlpSellerId="0001">
<Quotation QuotationDt="20130711"/>
<Product CurrencyCd="E">
etc etc
It is all good, but I actually dont want to have the xmlns in the output, what shall I do ?
Thanks
PS I am using latest version of JAXB and java 6.
In your mappings you have most likely supplied an #XmlSchema annotation on a package-info class that looks something like the following:
#XmlSchema(
namespace = "http://www.abc.com",
elementFormDefault = XmlNsForm.QUALIFIED)
package example;
import javax.xml.bind.annotation.XmlNsForm;
import javax.xml.bind.annotation.XmlSchema;
To remove the the namespace qualification from the XML output you can simply remove the metadata you put in to cause it to happen in the first place, assuming that is what you want to do.
For More Information
http://blog.bdoughan.com/2010/08/jaxb-namespaces.html
I have been trying to generate XML file from lists of object of type Customer class.
Which i have done successfully.But the structure of my XML file is nested and i want to flatten it out.
Following is my XML file content:
<Customers>
<customer>
<accessRole>
<name>Customer Center</name>
<internalId>14</internalId>
</accessRole>
<aging>0.0</aging>
<category>
<name>Individual</name>
<internalId>2</internalId>
</category>
<companyName>Wolfe Electronics</companyName>
<consolAging>0.0</consolAging>
<consolBalance>0.0</consolBalance>
<consolDepositBalance>0.0</consolDepositBalance>
<consolOverdueBalance>0.0</consolOverdueBalance>
<consolUnbilledOrders>2705.23</consolUnbilledOrders>
<creditHoldOverride/>
<dateCreated>2011-06-22T12:30:00+05:30</dateCreated>
<defaultAddress>US</defaultAddress>
<displaySymbol>$</displaySymbol>
<email>suresh#ldbsystems.com</email>
<emailPreference/>
<emailTransactions>false</emailTransactions>
<entityId>A Wolfe</entityId>
<entityStatus>
<name>CUSTOMER-Closed Won</name>
<internalId>13</internalId>
</entityStatus>
<externalId>entity-5</externalId>
<faxTransactions>false</faxTransactions>
<firstName>A</firstName>
<firstVisit>2012-02-25T05:43:18+05:30</firstVisit>
<giveAccess>true</giveAccess>
<globalSubscriptionStatus/>
<internalId>-5</internalId>
<isBudgetApproved>false</isBudgetApproved>
<isInactive>false</isInactive>
<isPerson>true</isPerson>
<lastModifiedDate>2012-12-19T07:12:03+05:30</lastModifiedDate>
<lastName>Wolfe</lastName>
<lastPageVisited>login-register</lastPageVisited>
<lastVisit>2013-02-23T06:10:44+05:30</lastVisit>
<overrideCurrencyFormat>false</overrideCurrencyFormat>
<phone>650-555-9788</phone>
<priceLevel>
<name>Employee Price</name>
<internalId>3</internalId>
</priceLevel>
<printTransactions>false</printTransactions>
<receivablesAccount>
<name>Use System Preference</name>
<internalId>-10</internalId>
</receivablesAccount>
<salesRep>
<name>Clark Koozer</name>
<internalId>23</internalId>
</salesRep>
<shipComplete>false</shipComplete>
<stage/>
<symbolPlacement/>
<taxItem>
<name>CA-SAN MATEO</name>
<internalId>-112</internalId>
</taxItem>
<taxable>false</taxable>
<unbilledOrders>2705.23</unbilledOrders>
<visits>150</visits>
<webLead>No</webLead>
</customer>
<customer>
<accessRole>
<name>Customer Center</name>
<internalId>14</internalId>
</accessRole>
<aging>0.0</aging>
<category>
<name>Corporate</name>
<internalId>1</internalId>
</category>
<consolAging>0.0</consolAging>
<consolBalance>0.0</consolBalance>
<consolDepositBalance>0.0</consolDepositBalance>
<consolOverdueBalance>0.0</consolOverdueBalance>
<consolUnbilledOrders>76.8</consolUnbilledOrders>
<creditHoldOverride/>
<customFieldList>
<customField/>
</customFieldList>
<dateCreated>2011-06-26T12:30:00+05:30</dateCreated>
<defaultAddress>Anderson Boughton Inc.<br>1488 Main<br>Apt 113<br>Seattle WA 98106<br>US</defaultAddress>
<displaySymbol>$</displaySymbol>
<email>boughton751#cscatering.com</email>
<emailPreference/>
<emailTransactions>false</emailTransactions>
<entityId>Anderson Boughton Inc.</entityId>
<entityStatus>
<name>CUSTOMER-Closed Won</name>
<internalId>13</internalId>
</entityStatus>
<faxTransactions>false</faxTransactions>
<firstVisit>2012-07-12T01:30:49+05:30</firstVisit>
<giveAccess>false</giveAccess>
<globalSubscriptionStatus/>
<internalId>75</internalId>
<isBudgetApproved>false</isBudgetApproved>
<isInactive>false</isInactive>
<isPerson>false</isPerson>
<lastModifiedDate>2012-12-19T11:50:14+05:30</lastModifiedDate>
<lastPageVisited>HP xw4100</lastPageVisited>
<lastVisit>2012-07-12T01:30:49+05:30</lastVisit>
<leadSource>
<name>Partner Referral</name>
<internalId>99993</internalId>
</leadSource>
<overrideCurrencyFormat>false</overrideCurrencyFormat>
<partner>
<name>Online electronics</name>
<internalId>171</internalId>
</partner>
<phone>206-555-1302</phone>
<priceLevel>
<name>Base Price</name>
<internalId>1</internalId>
</priceLevel>
<printTransactions>false</printTransactions>
<receivablesAccount>
<name>Use System Preference</name>
<internalId>-10</internalId>
</receivablesAccount>
<salesRep>
<name>A Wolfe</name>
<internalId>-5</internalId>
</salesRep>
<shipComplete>false</shipComplete>
<stage/>
<symbolPlacement/>
<taxable>false</taxable>
<unbilledOrders>76.8</unbilledOrders>
<webLead>No</webLead>
</customer>
</Customers>
So i have nested structure for <accessRole> which i want to flatten out like
<accessRole-name>and i don't want to display element like <internalId>.
Please find a code snippet of my model:
try {
FileWriter fileWriter = new FileWriter ("D:\\adapter-framework\\Customer_XML.xml");
JAXBContext jaxbContext = JAXBContext.newInstance(extractedRecordsArray[0].getClass());
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
fileWriter.append("<Customers>");
fileWriter.append('\n');
for(int i = 0; i < extractedRecordsArray.length - 761 ; i++)
{
jaxbMarshaller.setProperty("com.sun.xml.bind.xmlDeclaration", Boolean.FALSE);
jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
//jaxbMarshaller.marshal(extractedRecordsArray[i],fileWriter);
jaxbMarshaller.marshal(extractedRecordsArray[i],System.out);
fileWriter.append('\n');
AdapterLogger.debug(this.getClass().getName(), "Extracted record number : " + i);
}
fileWriter.append("</Customers>");
fileWriter.close();
} catch (JAXBException e) {
e.printStackTrace();
}
Please help me out if someone knows about it.
Thanks.
Note: I'm the EclipseLink JAXB (MOXy) lead and a member of the JAXB (JSR-222) expert group.
You can use the #XmlPath extension in MOXy to flatten the XML structure.
Customer
import javax.xml.bind.annotation.*;
import org.eclipse.persistence.oxm.annotations.XmlPath;
#XmlRootElement
#XmlAccessorType(XmlAccessType.FIELD)
public class Customer {
#XmlPath(".")
private AccessRole accessRole;
}
AccessRole
import javax.xml.bind.annotation.*;
#XmlAccessorType(XmlAccessType.FIELD)
public class AccessRole {
#XmlElement(name="accessRoleName")
private String name;
}
For More Information
http://blog.bdoughan.com/2010/07/xpath-based-mapping.html
I have some classes with JAXB annotations, I have created some instances and I need to validate them against my XSD files. I should be able to get the details of what is wrong when the objects are invalid.
So far I haven't had luck, I know about this class ValidationEventHandler but apperantly I can use it with the Unmarshaller class, the problem is that I have to validate the objects not the raw XML.
I have this code:
MyClass myObject = new MyClass();
JAXBContext jaxbContext = JAXBContext.newInstance("x.y.z");
JAXBSource jaxbSource = new JAXBSource(jaxbContext, myObject);
SchemaFactory factory = SchemaFactory
.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Source schemaFile = new StreamSource(getClass().getClassLoader()
.getResourceAsStream("mySchema.xsd"));
Schema schema = factory.newSchema(schemaFile);
Validator validator = schema.newValidator();
validator.validate(jaxbSource);
This code will work, it will validate the object and throw an exception with the message, something like this:
cvc-pattern-valid: Value '12345678901' is not facet-valid with respect
to pattern '\d{10}' for type 'id'.]
The problem is that I need specific details, with a string like that I would have to parse all the messages.
You can set an instance of ErrorHandler on the Validator to catch individual errors:
Validator validator = schema.newValidator();
validator.setErrorHandler(new MyErrorHandler());
validator.validate(source);
MyErrorHandler
Below is a sample implementation of the ErrorHandler interface. If you don't rethrow the exception the validation will continue.
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MyErrorHandler implements ErrorHandler {
public void warning(SAXParseException exception) throws SAXException {
System.out.println("\nWARNING");
exception.printStackTrace();
}
public void error(SAXParseException exception) throws SAXException {
System.out.println("\nERROR");
exception.printStackTrace();
}
public void fatalError(SAXParseException exception) throws SAXException {
System.out.println("\nFATAL ERROR");
exception.printStackTrace();
}
}
For More Information
http://blog.bdoughan.com/2010/11/validate-jaxb-object-model-with-xml.html
I. If you validate a complex object hierarchy, you can create the Marshaller yourself and set its listener:
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setListener(yourListener);
JAXBSource source = new JAXBSource(marshaller, object);
This listener will get notified with instances of your objects as it walks the hierarchy.
II. Add an ErrorHandler from the other answer. At least with Wildfly 15 the messages look like:
cvc-maxInclusive-valid: Value '360.953674' is not facet-valid with respect to maxInclusive '180.0' for type '#AnonType_longitudeGeographicalPosition'.'
cvc-type.3.1.3: The value '360.953674' of element 'longitude' is not valid.'
So you can parse out the element name, which is the guilty terminal field name.
III. Combine I and II with some introspection and you can reconstruct a full Java Beans style path to the erroneous field if necessary.