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 * and Distribution License("CDDL") (collectively, the "License").  You
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 * obtain a copy of the License at
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 * Modifications:
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import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.logging.Logger;

import javax.inject.Inject;
import javax.inject.Provider;

import org.glassfish.jersey.message.MessageBodyWorkers;
import org.glassfish.jersey.message.internal.AbstractMessageReaderWriterProvider;

 * JSON media type message entity provider (reader & writer) for
 * {@link JsonWithPadding}.
 * @author Jakub Podlesak
 * @author Paul Sandoz
public class JsonWithPaddingProvider extends AbstractMessageReaderWriterProvider {

    private static final Logger LOGGER = Logger.getLogger(JsonWithPaddingProvider.class.getName());
    private final Map> javascriptTypes;
    Provider bodyWorker;

    public JsonWithPaddingProvider() {
        javascriptTypes = new HashMap>();
        // application/javascript, application/x-javascript, text/ecmascript, application/ecmascript, text/jscript
        javascriptTypes.put("application", new HashSet(Arrays.asList("x-javascript", "ecmascript", "javascript")));
        javascriptTypes.put("text", new HashSet(Arrays.asList("ecmascript", "jscript")));

    private boolean isJavascript(MediaType m) {
        Set subtypes = javascriptTypes.get(m.getType());
        if (subtypes == null) {
            return false;

        return subtypes.contains(m.getSubtype());

    public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return false;

    public JsonWithPadding readFrom(Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, InputStream entityStream) throws IOException, WebApplicationException {
        throw new UnsupportedOperationException("Not supported by design.");

    public boolean isWriteable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return type == JsonWithPadding.class;

    public void writeTo(JsonWithPadding t, Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
        Object jsonEntity = t.getJsonSource();
        Type entityGenericType = jsonEntity.getClass();
        Class entityType = jsonEntity.getClass();

        final boolean genericEntityUsed = jsonEntity instanceof GenericEntity;

        if (genericEntityUsed) {
            GenericEntity ge = (GenericEntity) jsonEntity;
            jsonEntity = ge.getEntity();
            entityGenericType = ge.getType();
            entityType = ge.getRawType();

        final boolean isJavaScript = isJavascript(mediaType);
        final MediaType workerMediaType = isJavaScript ? MediaType.APPLICATION_JSON_TYPE : mediaType;

        MessageBodyWriter bw = bodyWorker.get().getMessageBodyWriter(entityType, entityGenericType, annotations, workerMediaType);
        if (bw == null) {
            if (!genericEntityUsed) {
                LOGGER.severe(LocalizationMessages.ERROR_NONGE_JSONP_MSG_BODY_WRITER_NOT_FOUND(jsonEntity, workerMediaType));
            } else {
                LOGGER.severe(LocalizationMessages.ERROR_JSONP_MSG_BODY_WRITER_NOT_FOUND(jsonEntity, workerMediaType));
            throw new WebApplicationException(500);

        if (isJavaScript) {

        bw.writeTo(jsonEntity, entityType, entityGenericType, annotations, workerMediaType, httpHeaders, entityStream);

        if (isJavaScript) {