Example usage for javax.xml.bind UnmarshalException UnmarshalException

Introduction

In this page you can find the example usage for javax.xml.bind UnmarshalException UnmarshalException.

Prototype

public UnmarshalException(String message, Throwable exception) 

Source Link

Document

Construct an UnmarshalException with the specified detail message and linkedException.

Usage

From source file:Main.java

public static <T> T unmarshal(Reader r, Class<T> clazz)
        throws JAXBException, XMLStreamException, FactoryConfigurationError {
    JAXBContext context = s_contexts.get(clazz);
    if (context == null) {
        context = JAXBContext.newInstance(clazz);
        s_contexts.put(clazz, context);/* w  w w  . j a  v a 2 s .  com*/
    }

    ValidationEventCollector valEventHndlr = new ValidationEventCollector();
    XMLStreamReader xmlsr = XMLInputFactory.newFactory().createXMLStreamReader(r);
    Unmarshaller unmarshaller = context.createUnmarshaller();
    unmarshaller.setSchema(null);
    unmarshaller.setEventHandler(valEventHndlr);

    JAXBElement<T> elem = null;
    try {
        elem = unmarshaller.unmarshal(xmlsr, clazz);
    } catch (Exception e) {
        if (e instanceof JAXBException) {
            throw (JAXBException) e;
        } else {
            throw new UnmarshalException(e.getMessage(), e);
        }
    }

    if (valEventHndlr.hasEvents()) {
        for (ValidationEvent valEvent : valEventHndlr.getEvents()) {
            if (valEvent.getSeverity() != ValidationEvent.WARNING) {
                // throw a new Unmarshall Exception if there is a parsing error
                String msg = MessageFormat.format("Line {0}, Col: {1}: {2}",
                        valEvent.getLocator().getLineNumber(), valEvent.getLocator().getColumnNumber(),
                        valEvent.getLinkedException().getMessage());
                throw new UnmarshalException(msg, valEvent.getLinkedException());
            }
        }
    }
    return elem.getValue();
}

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