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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
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 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.sun.xml.bind.v2.runtime;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import javax.xml.bind.ValidationEvent;
import javax.xml.bind.annotation.adapters.XmlAdapter;
import javax.xml.bind.helpers.PrintConversionEventImpl;
import javax.xml.bind.helpers.ValidationEventImpl;
import javax.xml.bind.helpers.ValidationEventLocatorImpl;

import com.sun.xml.bind.util.ValidationEventLocatorExImpl;

import org.xml.sax.SAXException;


/**
 * @author Kohsuke Kawaguchi
 */
public class RuntimeUtil {
    /**
     * XmlAdapter for printing arbitrary object by using {@link Object#toString()}.
     */
    public static final class ToStringAdapter extends XmlAdapter {
        public Object unmarshal(String s) {
            throw new UnsupportedOperationException();
        }

        public String marshal(Object o) {
            if(o==null)     return null;
            return o.toString();
        }
    }

    /**
     * Map from {@link Class} objects representing primitive types
     * to {@link Class} objects representing their boxed types.
     * 
     * e.g., int -> Integer.
     */
    public static final Map boxToPrimitive;

    /**
     * Reverse map of {@link #boxToPrimitive}.
     */
    public static final Map primitiveToBox;

    static {
        Map b = new HashMap();
        b.put(Byte.TYPE,Byte.class);
        b.put(Short.TYPE,Short.class);
        b.put(Integer.TYPE,Integer.class);
        b.put(Long.TYPE,Long.class);
        b.put(Character.TYPE,Character.class);
        b.put(Boolean.TYPE,Boolean.class);
        b.put(Float.TYPE,Float.class);
        b.put(Double.TYPE,Double.class);
        b.put(Void.TYPE,Void.class);

        primitiveToBox = Collections.unmodifiableMap(b);

        Map p = new HashMap();
        for( Map.Entry e :  b.entrySet() )
            p.put(e.getValue(),e.getKey());

        boxToPrimitive = Collections.unmodifiableMap(p);
    }

    /**
     * Reports a print conversion error while marshalling.
     */
    public static void handlePrintConversionException(
        Object caller, Exception e, XMLSerializer serializer ) throws SAXException {

        if( e instanceof SAXException )
            // assume this exception is not from application.
            // (e.g., when a marshaller aborts the processing, this exception
            //        will be thrown)
            throw (SAXException)e;

        ValidationEvent ve = new PrintConversionEventImpl(
            ValidationEvent.ERROR, e.getMessage(),
            new ValidationEventLocatorImpl(caller), e );
        serializer.reportError(ve);
    }

    /**
     * Reports that the type of an object in a property is unexpected.
     */
    public static void handleTypeMismatchError( XMLSerializer serializer,
            Object parentObject, String fieldName, Object childObject ) throws SAXException {

         ValidationEvent ve = new ValidationEventImpl(
            ValidationEvent.ERROR, // maybe it should be a fatal error.
             Messages.TYPE_MISMATCH.format(
                getTypeName(parentObject),
                fieldName,
                getTypeName(childObject) ),
            new ValidationEventLocatorExImpl(parentObject,fieldName) );

        serializer.reportError(ve);
    }

    private static String getTypeName( Object o ) {
        return o.getClass().getName();
    }
}