Package org.apache.cxf.jaxrs.provider

Source Code of org.apache.cxf.jaxrs.provider.JSONProviderTest

/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/

package org.apache.cxf.jaxrs.provider;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.MessageBodyReader;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlAnyElement;
import javax.xml.bind.annotation.XmlMixed;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
import javax.xml.transform.stream.StreamSource;

import org.apache.cxf.jaxrs.impl.MetadataMap;
import org.apache.cxf.jaxrs.provider.JAXBElementProviderTest.TagVO2Holder;
import org.apache.cxf.jaxrs.resources.Book;
import org.apache.cxf.jaxrs.resources.CollectionsResource;
import org.apache.cxf.jaxrs.resources.ManyTags;
import org.apache.cxf.jaxrs.resources.SuperBook;
import org.apache.cxf.jaxrs.resources.TagVO;
import org.apache.cxf.jaxrs.resources.TagVO2;
import org.apache.cxf.jaxrs.resources.Tags;

import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;
//CHECKSTYLE:OFF
public class JSONProviderTest extends Assert {

    @Test
    public void testWriteCollectionWithoutXmlRootElement()
        throws Exception {
        JSONProvider provider = new JSONProvider();
        provider.setCollectionWrapperName("{http://superbooks}SuperBooks");
        provider.setJaxbElementClassMap(Collections.singletonMap(
                org.apache.cxf.jaxrs.fortest.jaxb.SuperBook.class.getName(),
                "{http://superbooks}SuperBook"));
        org.apache.cxf.jaxrs.fortest.jaxb.SuperBook b =
            new org.apache.cxf.jaxrs.fortest.jaxb.SuperBook("CXF in Action", 123L, 124L);
        List<org.apache.cxf.jaxrs.fortest.jaxb.SuperBook> books =
            Collections.singletonList(b);
       
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(books, List.class,
                         org.apache.cxf.jaxrs.fortest.jaxb.SuperBook.class,
                         new Annotation[0], MediaType.APPLICATION_JSON_TYPE,
                         new MetadataMap<String, Object>(), bos);
        String expected = "{\"ns1.SuperBooks\":[{\"id\":123,\"name\":\"CXF in Action\",\"superId\":124}]}";
        assertEquals(expected, bos.toString());
    }
   
    @SuppressWarnings("unchecked")
    @Test
    public void testReadFromTags() throws Exception {
        MessageBodyReader<Object> p = new JSONProvider();
        byte[] bytes =
            "{\"Tags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"},{\"group\":\"d\",\"name\":\"c\"}]}}"
            .getBytes();
        Object tagsObject = p.readFrom((Class)Tags.class, null, null,
                                          null, null, new ByteArrayInputStream(bytes));
        Tags tags = (Tags)tagsObject;
        List<TagVO> list = tags.getTags();
        assertEquals(2, list.size());
        assertEquals("a", list.get(0).getName());
        assertEquals("b", list.get(0).getGroup());
        assertEquals("c", list.get(1).getName());
        assertEquals("d", list.get(1).getGroup());
    }
   
    @SuppressWarnings("unchecked")
    @Test
    public void testReadFromTag() throws Exception {
        MessageBodyReader<Object> p = new JSONProvider();
        byte[] bytes = "{\"tagVO\":{\"group\":\"b\",\"name\":\"a\"}}"
            .getBytes();
        Object tagsObject = p.readFrom((Class)TagVO.class, null, null,
                                          null, null, new ByteArrayInputStream(bytes));
        TagVO tag = (TagVO)tagsObject;
        assertEquals("a", tag.getName());
        assertEquals("b", tag.getGroup());
    }
   
    @SuppressWarnings("unchecked")
    @Test
    public void testReadFromQualifiedTag() throws Exception {
        JSONProvider p = new JSONProvider();
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        p.setNamespaceMap(namespaceMap);
        byte[] bytes = "{\"ns1.thetag\":{\"group\":\"b\",\"name\":\"a\"}}"
            .getBytes();
        Object tagsObject = p.readFrom((Class)TagVO2.class, null, null,
                                          null, null, new ByteArrayInputStream(bytes));
        TagVO2 tag = (TagVO2)tagsObject;
        assertEquals("a", tag.getName());
        assertEquals("b", tag.getGroup());
    }
   
    @Test
    public void testReadFromUnwrappedTagWrapperName() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSupportUnwrapped(true);
        p.setWrapperName("tagVO");
        readUnwrapped(p);
    }
   
    @Test
    public void testReadFromUnwrappedTagMap() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSupportUnwrapped(true);
       
        Map<String, String> map = new HashMap<String, String>();
        map.put(TagVO.class.getName(), "tagVO");
        p.setWrapperMap(map);
        readUnwrapped(p);
    }
   
    @Test
    public void testReadFromUnwrappedTagRoot() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSupportUnwrapped(true);
        readUnwrapped(p);
    }
   
    @Test
    @SuppressWarnings("unchecked")
    public void testReadFromUnwrappedQualifiedTagRoot() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSupportUnwrapped(true);
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        p.setNamespaceMap(namespaceMap);
       
        byte[] bytes = "{\"group\":\"b\",\"name\":\"a\"}"
            .getBytes();
        Object tagsObject = p.readFrom((Class)TagVO2.class, null, null,
                                          null, null, new ByteArrayInputStream(bytes));
        TagVO2 tag = (TagVO2)tagsObject;
        assertEquals("a", tag.getName());
        assertEquals("b", tag.getGroup());
    }
   
    @SuppressWarnings("unchecked")
    private void readUnwrapped(JSONProvider p) throws Exception {
        byte[] bytes = "{\"group\":\"b\",\"name\":\"a\"}"
            .getBytes();
        Object tagsObject = p.readFrom((Class)TagVO.class, null, null,
                                          null, null, new ByteArrayInputStream(bytes));
        TagVO tag = (TagVO)tagsObject;
        assertEquals("a", tag.getName());
        assertEquals("b", tag.getGroup());
    }
   
    @Test
    public void testWriteToSingleTag() throws Exception {
        JSONProvider p = new JSONProvider();
        TagVO tag = createTag("a", "b");
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tag, (Class)TagVO.class, TagVO.class, TagVO.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals("{\"tagVO\":{\"group\":\"b\",\"name\":\"a\"}}", s);
       
    }
   
    @Test
    public void testWriteToSingleTagBadgerFish() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setConvention("badgerfish");
        TagVO tag = createTag("a", "b");
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tag, (Class)TagVO.class, TagVO.class, TagVO.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals("{\"tagVO\":{\"group\":{\"$\":\"b\"},\"name\":{\"$\":\"a\"}}}", s);
       
    }
   
    @Test
    public void testWriteToSingleQualifiedTag() throws Exception {
        JSONProvider p = new JSONProvider();
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        p.setNamespaceMap(namespaceMap);
        TagVO2 tag = createTag2("a", "b");
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tag, (Class)TagVO2.class, TagVO2.class, TagVO2.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals("{\"ns1.thetag\":{\"group\":\"b\",\"name\":\"a\"}}", s);
    }
   
    @Test
    public void testWriteToSingleQualifiedTagBadgerFish() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setConvention("badgerfish");
        TagVO2 tag = createTag2("a", "b");
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tag, (Class)TagVO2.class, TagVO2.class, TagVO2.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals("{\"ns2:thetag\":{\"@xmlns\":{\"ns2\":\"http:\\/\\/tags\"},"
                     + "\"group\":{\"$\":\"b\"},\"name\":{\"$\":\"a\"}}}", s);
    }
   
    @Test
    public void testDropRootElement() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setDropRootElement(true);
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        p.setNamespaceMap(namespaceMap);
        TagVO2 tag = createTag2("a", "b");
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tag, (Class)TagVO2.class, TagVO2.class, TagVO2.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals("{\"group\":\"b\",\"name\":\"a\"}", s);
       
    }
   
    @Test
    public void testWriteQualifiedCollection() throws Exception {
        String data = "{\"ns1.tag\":[{\"group\":\"b\",\"name\":\"a\"}"
            + ",{\"group\":\"d\",\"name\":\"c\"}]}";
        doWriteQualifiedCollection(false, false, data);
    }
   
    @Test
    public void testWriteQualifiedCollection2() throws Exception {
        String data = "{{\"group\":\"b\",\"name\":\"a\"}"
            + ",{\"group\":\"d\",\"name\":\"c\"}}";
        doWriteQualifiedCollection(true, false, data);
    }
   
    @Test
    public void testWriteQualifiedCollection3() throws Exception {
        String data = "[{\"group\":\"b\",\"name\":\"a\"}"
            + ",{\"group\":\"d\",\"name\":\"c\"}]";
        doWriteQualifiedCollection(true, true, data);
    }
   
    public void doWriteQualifiedCollection(boolean drop, boolean serializeAsArray, String data)
        throws Exception {
        JSONProvider p = new JSONProvider();
        p.setCollectionWrapperName("{http://tags}tag");
        p.setDropCollectionWrapperElement(drop);
        p.setSerializeAsArray(serializeAsArray);
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        p.setNamespaceMap(namespaceMap);
        List<TagVO2> tags = new ArrayList<TagVO2>();
        tags.add(createTag2("a", "b"));
        tags.add(createTag2("c", "d"));
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        Method m = CollectionsResource.class.getMethod("getTags", new Class[0]);
        p.writeTo(tags, m.getReturnType(), m.getGenericReturnType(), new Annotation[0],
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
        String s = os.toString();
        assertEquals(s, data);
       
    }
   
    @Test
    @Ignore
    public void testReadQualifiedCollection() throws Exception {
        String data = "{\"ns1.tag\":[{\"group\":\"b\",\"name\":\"a\"}"
            + ",{\"group\":\"d\",\"name\":\"c\"}]}";
        doReadQualifiedCollection(data, false);
    }
   
    @Test
    @Ignore
    public void testReadQualifiedArray() throws Exception {
        String data = "{\"ns1.tag\":[{\"group\":\"b\",\"name\":\"a\"}"
            + ",{\"group\":\"d\",\"name\":\"c\"}]}";
        doReadQualifiedCollection(data, true);
    }
   
    @SuppressWarnings("unchecked")
    public void doReadQualifiedCollection(String data, boolean isArray) throws Exception {
       
        JSONProvider provider = new JSONProvider();
        provider.setCollectionWrapperName("{http://tags}tag");
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        provider.setNamespaceMap(namespaceMap);
       
        Method m = null;
        if (!isArray) {
            m = CollectionsResource.class.getMethod("setTags", new Class[]{List.class});
        } else {
            m = CollectionsResource.class.getMethod("setTagsArray", new Class[]{TagVO2[].class});
        }
       
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom(
                      (Class)m.getParameterTypes()[0], m.getGenericParameterTypes()[0],
                       new Annotation[0], MediaType.APPLICATION_JSON_TYPE,
                       new MetadataMap<String, String>(), is);
        assertNotNull(o);
        TagVO2 t1 = null;
        TagVO2 t2 = null;
        if (!isArray) {
            assertEquals(2, ((List)o).size());
            t1 = (TagVO2)((List)o).get(0);
            t2 = (TagVO2)((List)o).get(1);
        } else {
            assertEquals(2, ((Object[])o).length);
            t1 = (TagVO2)((Object[])o)[0];
            t2 = (TagVO2)((Object[])o)[1];
        }
        assertEquals("A", t1.getName());
        assertEquals("B", t1.getGroup());
       
        assertEquals("C", t2.getName());
        assertEquals("D", t2.getGroup());
    }
   
    @Test
    public void testWriteToSingleQualifiedTag2() throws Exception {
        JSONProvider p = new JSONProvider();
        TagVO2 tag = createTag2("a", "b");
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tag, (Class)TagVO2.class, TagVO2.class, TagVO2.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals("{\"ns1.thetag\":{\"group\":\"b\",\"name\":\"a\"}}", s);
       
    }
   
    @Test
    public void testWriteIgnoreMixedContent() throws Exception {
        doTestMixedContent("{\"Book\":{\"name\":\"CXF\",\"id\":125}}",
                           true, "book.xml");
    }
   
    @Test
    public void testWriteIgnoreMixedContent2() throws Exception {
        doTestMixedContent("{\"Book\":{\"name\":\"CXF\",\"id\":125,\"$\":\"books\"}}",
                           true, "book2.xml");
    }
   
    @Test
    @Ignore("This is hitting http://jira.codehaus.org/browse/JETTISON-44")
    public void testWriteMixedContent() throws Exception {
        doTestMixedContent("{\"Book\":{\"name\":\"CXF\",\"id\":125,\"$\":\"\\n     \\n\"}}",
                           false, "book.xml");
    }
   
    private void doTestMixedContent(String data, boolean ignore, String fileName) throws Exception {
        InputStream is = getClass().getResourceAsStream(fileName);
        JAXBContext context = JAXBContext.newInstance(new Class[]{Books.class, Book.class});
        Unmarshaller um = context.createUnmarshaller();
        JAXBElement jaxbEl = um.unmarshal(new StreamSource(is), Books.class);
        JSONProvider p = new JSONProvider();
        p.setIgnoreMixedContent(ignore);
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(jaxbEl, (Class)JAXBElement.class, JAXBElement.class, JAXBElement.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
        String s = os.toString();
        assertEquals(data, s);
    }
   
    @Test
    public void testWriteListOfDerivedTypes() throws Exception {
        JSONProvider p = new JSONProvider();
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://www.w3.org/2001/XMLSchema-instance", "xsins");
        p.setNamespaceMap(namespaceMap);
        Books2 books2 = new Books2();
        books2.setBooks(Collections.singletonList(
                            new SuperBook("CXF Rocks", 123L, 124L)));
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(books2, (Class)Books2.class, Books2.class, Books2.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
        String s = os.toString();
        String data = "{\"books2\":{\"books\":{\"@xsins.type\":\"superBook\",\"id\":123,"
            + "\"name\":\"CXF Rocks\",\"state\":\"\",\"superId\":124}}}";
        assertEquals(data, s);
    }
   
    @SuppressWarnings("unchecked")
    @Test
    public void testReadListOfDerivedTypes() throws Exception {
        JSONProvider p = new JSONProvider();
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://www.w3.org/2001/XMLSchema-instance", "xsins");
        p.setNamespaceMap(namespaceMap);
        String data = "{\"books2\":{\"books\":{\"@xsins.type\":\"superBook\",\"id\":123,"
            + "\"name\":\"CXF Rocks\",\"superId\":124}}}";
        byte[] bytes = data.getBytes();
        Object books2Object = p.readFrom((Class)Books2.class, null, null,
                                          null, null, new ByteArrayInputStream(bytes));
        Books2 books = (Books2)books2Object;
        List<? extends Book> list = books.getBooks();
        assertEquals(1, list.size());
        SuperBook book = (SuperBook)list.get(0);
        assertEquals(124L, book.getSuperId());
    }
   
    @Test
    public void testWriteToListWithManyValues() throws Exception {
        JSONProvider p = new JSONProvider();
        Tags tags = new Tags();
        tags.addTag(createTag("a", "b"));
        tags.addTag(createTag("c", "d"));
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tags, (Class)Tags.class, Tags.class, Tags.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals(
            "{\"Tags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"},{\"group\":\"d\",\"name\":\"c\"}]}}",
            s);
    }
   
    @Test
    public void testWriteToListWithSingleValue() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSerializeAsArray(true);
        p.setArrayKeys(Collections.singletonList("list"));
        Tags tags = new Tags();
        tags.addTag(createTag("a", "b"));
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(tags, (Class)Tags.class, Tags.class, Tags.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals(
            "{\"Tags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"}]}}",
            s);
    }
   
    @Test
    public void testWriteUsingNaturalNotation() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSerializeAsArray(true);
        p.setArrayKeys(Collections.singletonList("comments"));
        Post post = new Post();
        post.setTitle("post");
        Comment c1 = new Comment();
        c1.setTitle("comment1");
        Comment c2 = new Comment();
        c2.setTitle("comment2");
        post.getComments().add(c1);
        post.getComments().add(c2);
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(post, (Class)Post.class, Post.class, Post.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals(
            "{\"post\":{\"title\":\"post\",\"comments\":[{\"title\":\"comment1\"},"
            + "{\"title\":\"comment2\"}]}}",
            s);
    }
   
    @Test
    public void testManyTags() throws Exception {
        JSONProvider p = new JSONProvider();
        p.setSerializeAsArray(true);
        p.setArrayKeys(Collections.singletonList("list"));
       
        Tags tags = new Tags();
        tags.addTag(createTag("a", "b"));
        ManyTags many = new ManyTags();
        many.setTags(tags);
       
        ByteArrayOutputStream os = new ByteArrayOutputStream();
       
        p.writeTo(many, (Class)ManyTags.class, ManyTags.class, ManyTags.class.getAnnotations(),
                  MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, Object>(), os);
       
        String s = os.toString();
        assertEquals(
            "{\"ManyTags\":{\"tags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"}]}}}",
            s);
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testInDropElement() throws Exception {
        String data = "{\"Extra\":{\"ManyTags\":{\"tags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"}]}}}}";
        JSONProvider provider = new JSONProvider();
        provider.setInDropElements(Collections.singletonList("Extra"));
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom((Class)ManyTags.class, ManyTags.class,
                      new Annotation[0], MediaType.APPLICATION_JSON_TYPE,
                      new MetadataMap<String, String>(), is);
        ManyTags holder = (ManyTags)o;
        assertNotNull(holder);   
        TagVO tag = holder.getTags().getTags().get(0);
        assertEquals("a", tag.getName());
        assertEquals("b", tag.getGroup());
    }
   
    @Test
    public void testInAppendElementNoNs() throws Exception {
        String data = "{\"tags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"}]}}";
        readAppendElementsNoNs(data, Collections.singletonMap("tags", "ManyTags"));
    }
   
    @Test
    public void testInAppendElementNoNs2() throws Exception {
        String data = "{\"ManyTags\":{\"list\":[{\"group\":\"b\",\"name\":\"a\"}]}}";
        readAppendElementsNoNs(data, Collections.singletonMap("list", "tags"));
    }
   
    @SuppressWarnings("unchecked")
    private void readAppendElementsNoNs(String data, Map<String, String> appendMap) throws Exception {
        JSONProvider provider = new JSONProvider();
        provider.setInAppendElements(appendMap);
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom((Class)ManyTags.class, ManyTags.class,
                      new Annotation[0], MediaType.APPLICATION_JSON_TYPE,
                      new MetadataMap<String, String>(), is);
        ManyTags holder = (ManyTags)o;
        assertNotNull(holder);   
        TagVO tag = holder.getTags().getTags().get(0);
        assertEquals("a", tag.getName());
        assertEquals("b", tag.getGroup());
    }
   
    @Test
    public void testInNsElementFromLocal() throws Exception {
        String data = "{thetag:{\"group\":\"B\",\"name\":\"A\"}}";
        readTagVO2AfterTransform(data, "thetag");
    }
   
    @Test
    public void testInNsElementFromNsElement() throws Exception {
        String data = "{t.thetag2:{\"group\":\"B\",\"name\":\"A\"}}";
        readTagVO2AfterTransform(data, "{http://bar}thetag2");
    }
   
    @Test
    public void testInLocalFromLocal() throws Exception {
        String data = "{thetag:{\"group\":\"B\",\"name\":\"A\"}}";
        readTagVOAfterTransform(data, "thetag");
    }
   
    @Test
    public void testInLocalFromNsElement() throws Exception {
        String data = "{t.thetag2:{\"group\":\"B\",\"name\":\"A\"}}";
        readTagVOAfterTransform(data, "{http://bar}thetag2");
    }
   
    @Test
    @SuppressWarnings("unchecked")
    public void testInAppendAttributes() throws Exception {
        String data = "{t.tagholder:{t.thetag:{\"group\":\"B\",\"name\":\"A\"}}}";
        JSONProvider provider = new JSONProvider();
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://tags", "t");
        provider.setNamespaceMap(nsmap);
        Map<String, String> map = new HashMap<String, String>();
        map.put("{http://tags}tagholder", "attr:custom");
        provider.setInAppendAttributes(map);
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom((Class)TagVO2Holder.class, TagVO2Holder.class,
                      new Annotation[0], MediaType.APPLICATION_JSON_TYPE,
                      new MetadataMap<String, String>(), is);
        TagVO2Holder holder = (TagVO2Holder)o;
        assertEquals("custom", holder.getAttribute());
        TagVO2 tag2 = holder.getTagValue();
        assertEquals("A", tag2.getName());
        assertEquals("B", tag2.getGroup());
    }
   
   
    @SuppressWarnings("unchecked")
    private void readTagVO2AfterTransform(String data, String keyValue) throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put(keyValue, "{http://tags}thetag");
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://bar", "t");
        provider.setNamespaceMap(nsmap);
        provider.setInTransformElements(map);
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom((Class)TagVO2.class, TagVO2.class,
                      new Annotation[0], MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, String>(),
                      is);
        TagVO2 tag2 = (TagVO2)o;
        assertEquals("A", tag2.getName());
        assertEquals("B", tag2.getGroup());   
    }
   
    @SuppressWarnings("unchecked")
    @Test
    public void testInNsElementsFromLocals() throws Exception {
        String data = "{tagholder:{thetag:{\"group\":\"B\",\"name\":\"A\"}}}";
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("tagholder", "{http://tags}tagholder");
        map.put("thetag", "{http://tags}thetag");
        provider.setInTransformElements(map);
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom((Class)TagVO2Holder.class, TagVO2Holder.class,
                      new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, String>(), is);
        TagVO2Holder holder = (TagVO2Holder)o;
        TagVO2 tag2 = holder.getTagValue();
        assertEquals("A", tag2.getName());
        assertEquals("B", tag2.getGroup());   
    }
   
    @Test
    public void testOutAttributesAsElements() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("{http://tags}thetag", "thetag");
        map.put("{http://tags}tagholder", "tagholder");
        provider.setOutTransformElements(map);
        provider.setAttributesToElements(true);
        TagVO2 tag = new TagVO2("A", "B");
        TagVO2Holder holder = new TagVO2Holder();
        holder.setTag(tag);
       
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(holder, TagVO2Holder.class, TagVO2Holder.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected =
            "{\"tagholder\":{\"attr\":\"attribute\",\"thetag\":{\"group\":\"B\",\"name\":\"A\"}}}";
        assertEquals(expected, bos.toString());
    }
   
    @SuppressWarnings("unchecked")
    private void readTagVOAfterTransform(String data, String keyValue) throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put(keyValue, "tagVO");
        provider.setInTransformElements(map);
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://bar", "t");
        provider.setNamespaceMap(nsmap);
        ByteArrayInputStream is = new ByteArrayInputStream(data.getBytes());
        Object o = provider.readFrom((Class)TagVO.class, TagVO.class,
                      new Annotation[0], MediaType.APPLICATION_JSON_TYPE, new MetadataMap<String, String>(),
                      is);
        TagVO tag2 = (TagVO)o;
        assertEquals("A", tag2.getName());
        assertEquals("B", tag2.getGroup());   
    }
   
   
    @Test
    @Ignore
    // name:A is lost
    public void testDropElementsIgnored() throws Exception {
        JSONProvider provider = new JSONProvider();
        List<String> list = new ArrayList<String>();
        list.add("ManyTags");
        list.add("list");
        list.add("tags");
        provider.setOutDropElements(list);
        ManyTags many = new ManyTags();
        Tags tags = new Tags();
        tags.addTag(new TagVO("A", "B"));
        tags.addTag(new TagVO("C", "D"));
        many.setTags(tags);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(many, ManyTags.class, ManyTags.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        System.out.println(bos.toString());
    }
    @Test
    public void testDropElements() throws Exception {
        JSONProvider provider = new JSONProvider();
        List<String> list = new ArrayList<String>();
        list.add("ManyTags");
        list.add("tags");
        provider.setOutDropElements(list);
        ManyTags many = new ManyTags();
        Tags tags = new Tags();
        tags.addTag(new TagVO("A", "B"));
        tags.addTag(new TagVO("C", "D"));
        many.setTags(tags);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(many, ManyTags.class, ManyTags.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"list\":[{\"group\":\"B\",\"name\":\"A\"},"
            + "{\"group\":\"D\",\"name\":\"C\"}]}";
        assertEquals(expected, bos.toString());
    }
   
   
    @Test
    public void testDropQualifiedElements() throws Exception {
        JSONProvider provider = new JSONProvider();
        List<String> list = new ArrayList<String>();
        list.add("{http://tags}thetag");
        list.add("name");
        provider.setOutDropElements(list);
        TagVO2 tag = new TagVO2("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO2.class, TagVO2.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"group\":\"B\"}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutAppendNsElementBeforeLocal() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("tagVO", "{http://tagsvo2}t");
        provider.setOutAppendElements(map);
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://tagsvo2", "ps1");
        provider.setNamespaceMap(nsmap);
       
        TagVO tag = new TagVO("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO.class, TagVO.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"ps1.t\":{\"tagVO\":{\"group\":\"B\",\"name\":\"A\"}}}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutAppendLocalBeforeLocal() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("tagVO", "supertag");
        provider.setOutAppendElements(map);
        TagVO tag = new TagVO("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO.class, TagVO.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"supertag\":{\"tagVO\":{\"group\":\"B\",\"name\":\"A\"}}}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutAppendElementsSameNs() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("{http://tags}thetag", "{http://tags}t");
        provider.setOutAppendElements(map);
        TagVO2 tag = new TagVO2("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO2.class, TagVO2.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"ns1.t\":{\"ns1.thetag\":{\"group\":\"B\",\"name\":\"A\"}}}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutAppendElementsDiffNs() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("{http://tags}thetag", "{http://tagsvo2}t");
        provider.setOutAppendElements(map);
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://tagsvo2", "ps1");
        provider.setNamespaceMap(nsmap);
        TagVO2 tag = new TagVO2("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO2.class, TagVO2.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"ps1.t\":{\"ns2.thetag\":{\"group\":\"B\",\"name\":\"A\"}}}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutElementsMapLocalNsToLocalNs() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("{http://tags}thetag", "{http://tagsvo2}t");
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://tagsvo2", "ns2");
        provider.setNamespaceMap(nsmap);
        provider.setOutTransformElements(map);
        TagVO2 tag = new TagVO2("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO2.class, TagVO2.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"ns2.t\":{\"group\":\"B\",\"name\":\"A\"}}";
        assertEquals(expected, bos.toString());
    }
   

    @Test
    public void testOutElementsMapLocalNsToLocal() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("{http://tags}thetag", "t");
        provider.setOutTransformElements(map);
        TagVO2 tag = new TagVO2("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO2.class, TagVO2.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"t\":{\"group\":\"B\",\"name\":\"A\"}}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutElementsMapLocalToLocalNs() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> namespaceMap = new HashMap<String, String>();
        namespaceMap.put("http://tags", "ns1");
        Map<String, String> map = new HashMap<String, String>();
        map.put("tagVO", "{http://tags}thetag");
        provider.setOutTransformElements(map);
        Map<String, String> nsmap = new HashMap<String, String>();
        nsmap.put("http://tags", "ps1");
        provider.setNamespaceMap(nsmap);
        TagVO tag = new TagVO("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO.class, TagVO.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"ps1.thetag\":{\"group\":\"B\",\"name\":\"A\"}}";
        assertEquals(expected, bos.toString());
    }
   
    @Test
    public void testOutElementsMapLocalToLocal() throws Exception {
        JSONProvider provider = new JSONProvider();
        Map<String, String> map = new HashMap<String, String>();
        map.put("tagVO", "supertag");
        map.put("group", "group2");
        provider.setOutTransformElements(map);
        TagVO tag = new TagVO("A", "B");
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        provider.writeTo(tag, TagVO.class, TagVO.class,
                       new Annotation[0], MediaType.TEXT_XML_TYPE, new MetadataMap<String, Object>(), bos);
        String expected = "{\"supertag\":{\"group2\":\"B\",\"name\":\"A\"}}";
        assertEquals(expected, bos.toString());
    }
   
    private TagVO createTag(String name, String group) {
        return new TagVO(name, group);
    }
   
    private TagVO2 createTag2(String name, String group) {
        return new TagVO2(name, group);
    }
   
    @XmlRootElement()
    public static class Books {
        @XmlMixed
        @XmlAnyElement(lax = true)
        protected List<Object> books;
    }
   
    @XmlRootElement()
    public static class Books2 {
        protected List<? extends Book> books;
       
        public void setBooks(List<? extends Book> list) {
            books = list;
        }
       
        public List<? extends Book> getBooks() {
            return books;
        }
    }
   
    @XmlRootElement()
    @XmlType(name = "", propOrder = {"title", "comments" })
    public static class Post {
        private String title;
        private List<Comment> comments = new ArrayList<Comment>();
        public void setTitle(String title) {
            this.title = title;
        }
        public String getTitle() {
            return title;
        }
        public void setComments(List<Comment> comments) {
            this.comments = comments;
        }
        public List<Comment> getComments() {
            return comments;
        }
    }
   
    public static class Comment {
        private String title;

        public void setTitle(String title) {
            this.title = title;
        }

        public String getTitle() {
            return title;
        }
    }

}
//CHECKSTYLE:ON
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