JSONJAXBRoudtripTest.java

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package com.sun.jersey.json.impl;

import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.api.json.JSONJAXBContext;
import com.sun.jersey.api.json.JSONMarshaller;
import com.sun.jersey.api.json.JSONUnmarshaller;
import junit.framework.TestCase;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.PropertyException;
import java.io.StringReader;
import java.io.StringWriter;
import java.lang.reflect.Method;
import java.util.*;

/**
 *
 * @author Jakub.Podlesak@Sun.COM
 */
public class JSONJAXBRoudtripTest extends TestCase {
    
    private static final String PKG_NAME = "com/sun/jersey/json/impl/";

    
    Collection<Object> beans;
    Class[] classes;
    

    @Override
    @SuppressWarnings("unchecked")
    public void setUp() throws Exception {
        String beanClasses = TestHelper.getResourceAsString(PKG_NAME, "jaxb.index");
        Collection classCollection = new LinkedList<Class>();
        StringTokenizer tokenizer = new StringTokenizer(beanClasses);
        //StringTokenizer tokenizer = new StringTokenizer("SimpleBeanWithAttributes");//beanClasses);
        beans = new LinkedList<Object>();
        while (tokenizer.hasMoreTokens()) {
            String className = tokenizer.nextToken();
            if (!"".equals(className)) {
                Class beanClass = Class.forName(PKG_NAME.replace('/', '.') + className);
                classCollection.add(beanClass);
                Method testBeanCreator = beanClass.getDeclaredMethod("createTestInstance");
                Object testBean = testBeanCreator.invoke(null);
                beans.add(testBean);
            }
        }
        classes = (Class[]) classCollection.toArray(new Class[0]);
    }
    
    public void testDefaultConfig() throws Exception {
        System.out.println("DEFAULT CONFIG");
        allBeansTest(new JSONJAXBContext(classes), beans);
    }
    
    public void testInternalNotation() throws Exception {
        System.out.println("INTERNAL NOTATION");
        allBeansTest(new JSONJAXBContext(JSONConfiguration.mapped().rootUnwrapping(false).build(), classes), beans);
    }

    public void testInternalNotationDeprecatedConfig() throws Exception {
        System.out.println("INTERNAL NOTATION DEPRECATED CONFIG");
        Map<String, Object> props = new HashMap<String, Object>();
        props.put(JSONJAXBContext.JSON_NOTATION, JSONJAXBContext.JSONNotation.MAPPED);
        props.put(JSONJAXBContext.JSON_ROOT_UNWRAPPING, Boolean.FALSE);
        allBeansTest(new JSONJAXBContext(classes, props), beans);
    }

    public void testInternalNotationAttrAsElems() throws Exception {
        System.out.println("INTERNAL NOTATION WITH SOME ATTR AS ELEMS");
        allBeansTest(new JSONJAXBContext(JSONConfiguration.mapped().rootUnwrapping(true).attributeAsElement("i", "j").build(), classes), beans);
    }

    public void testInternalNotationAttrAsElemsDeprecatedConfig() throws Exception {
        System.out.println("INTERNAL NOTATION WITH SOME ATTR AS ELEMS DEPRECATED CONFIG");
        Map<String, Object> props = new HashMap<String, Object>();
        props.put(JSONJAXBContext.JSON_NOTATION, JSONJAXBContext.JSONNotation.MAPPED);
        props.put(JSONJAXBContext.JSON_ROOT_UNWRAPPING, Boolean.TRUE);
        props.put(JSONJAXBContext.JSON_ATTRS_AS_ELEMS, new HashSet<String>(2){{add("i");add("j");}});
        allBeansTest(new JSONJAXBContext(classes, props), beans);
    }

    public void testJettisonBadgerfishNotation() throws Exception {
        System.out.println("BADGERFISH NOTATION");
        allBeansTest(new JSONJAXBContext(JSONConfiguration.badgerFish().build(), classes), beans);
    }

    public void testJettisonBadgerfishNotationDeprecatedConfig() throws Exception {
        System.out.println("BADGERFISH NOTATION DEPRECATED CONFIG");
        Map<String, Object> props = new HashMap<String, Object>();
        props.put(JSONJAXBContext.JSON_NOTATION, JSONJAXBContext.JSONNotation.BADGERFISH);
        allBeansTest(new JSONJAXBContext(classes, props), beans);
    }

    public void testNaturalNotation() throws Exception {
        System.out.println("NATURAL NOTATION");
        allBeansTest(new JSONJAXBContext(JSONConfiguration.natural().build(), classes), beans);
    }

    public void testNaturalNotationFormatted() throws Exception {
        System.out.println("NATURAL NOTATION FORMATTED");
        allBeansTest(new JSONJAXBContext(JSONConfiguration.natural().humanReadableFormatting(true).build(), classes), beans);
    }


    public void testNaturalNotationDeprecatedConfig() throws Exception {
        System.out.println("NATURAL NOTATION DEPRECATED CONFIG");
        Map<String, Object> props = new HashMap<String, Object>();
        props.put(JSONJAXBContext.JSON_NOTATION, JSONJAXBContext.JSONNotation.NATURAL);
        allBeansTest(new JSONJAXBContext(classes, props), beans);
    }

    public void testJettisonMappedNotation() throws Exception {
        System.out.println("MAPPED (JETTISON) NOTATION");
        Map<String, Object> props = new HashMap<String, Object>();
        allBeansTest(new JSONJAXBContext(JSONConfiguration.mappedJettison().build(), classes), beans);
    }

    public void testJettisonMappedNotationDeprecatedConfig() throws Exception {
        System.out.println("MAPPED (JETTISON) NOTATION DEPRECATED CONFIG");
        Map<String, Object> props = new HashMap<String, Object>();
        props.put(JSONJAXBContext.JSON_NOTATION, "MAPPED_JETTISON");
        allBeansTest(new JSONJAXBContext(classes, props), beans);
    }
    
    public synchronized void allBeansTest(JSONJAXBContext context, Collection<Object> beans) throws Exception {

        JSONMarshaller marshaller = context.createJSONMarshaller();
        JSONUnmarshaller unmarshaller = context.createJSONUnmarshaller();

        for (Object originalBean : beans) {
            printAsXml(originalBean);

            StringWriter sWriter = new StringWriter();
            marshaller.marshallToJSON(originalBean, sWriter);

            System.out.println(sWriter.toString());
            assertEquals(originalBean, unmarshaller.unmarshalFromJSON(new StringReader(sWriter.toString()), originalBean.getClass()));
        }
    }

    private void printAsXml(Object originalBean) throws JAXBException, PropertyException {
        System.out.println("Checking " + originalBean.toString());
        JAXBContext ctx = JAXBContext.newInstance(originalBean.getClass());
        Marshaller m = ctx.createMarshaller();
        m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
        m.marshal(originalBean, System.out);
    }
}