Examples of javax.ws.rs.ext.MessageBodyReader.readFrom()

javax.ws.rs.ext.MessageBodyReader.readFrom()
Read a type from the {@link InputStream}. @param type the type that is to be read from the entity stream. @param genericType the type of instance to be produced. E.g. if themessage body is to be converted into a method parameter, this will be the formal type of the method parameter as returned by {@code Method.getGenericParameterTypes}. @param annotations an array of the annotations on the declaration of theartifact that will be initialized with the produced instance. E.g. if the message body is to be converted into a method parameter, this will be the annotations on that parameter returned by {@code Method.getParameterAnnotations}. @param mediaType the media type of the HTTP entity. @param httpHeaders the read-only HTTP headers associated with HTTP entity. @param entityStream the {@link InputStream} of the HTTP entity. Thecaller is responsible for ensuring that the input stream ends when the entity has been consumed. The implementation should not close the input stream. @return the type that was read from the stream. @throws java.io.IOException if an IO error arises @throws javax.ws.rs.WebApplicationException if a specific HTTP error response needs to be produced. Only effective if thrown prior to the response being committed.

                }




                try {
                    //noinspection unchecked
                    return reader.readFrom(
                            parameter.getRawType(),
                            parameter.getType(),
                            parameter.getAnnotations(),
                            mediaType,
                            request.getHeaders(),

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                                    String.class,
                                    String.class,
                                    parameter.getAnnotations(),
                                    mediaType);


                            @SuppressWarnings("unchecked") final String value = (String) reader.readFrom(
                                    String.class,
                                    String.class,
                                    parameter.getAnnotations(),
                                    mediaType,
                                    request.getHeaders(),

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                                         type,
                                         m);
            if (provider != null) {
                try {
                    HttpHeaders headers = new HttpHeadersImpl(m);
                    return provider.readFrom(
                              targetTypeClass, parameterType, parameterAnnotations, contentType,
                              headers.getRequestHeaders(), is);
                } catch (IOException e) {
                    String errorMessage = "Error deserializing input stream into target class "
                                          + targetTypeClass.getSimpleName()

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            ProviderFactory.getInstance().createMessageBodyReader(
                cls, type, anns, contentType, inMessage);
        }
        if (mbr != null) {
            try {
                return mbr.readFrom(cls, type, anns, contentType, 
                       new MetadataMap<String, Object>(r.getMetadata(), true, true), inputStream);
            } catch (Exception ex) {
                throw new WebApplicationException();
            }

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                                         type,
                                         m);
            if (provider != null) {
                try {
                    HttpHeaders headers = new HttpHeadersImpl(m);
                    return provider.readFrom(
                              targetTypeClass, parameterType, parameterAnnotations, contentType,
                              headers.getRequestHeaders(), is);
                } catch (IOException e) {
                    String errorMessage = "Error deserializing input stream into target class "
                                          + targetTypeClass.getSimpleName()

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               }


               try
               {
                  p[i++] =
                     entityReader.readFrom(mp.getParameterClass(), mp.getGenericType(), mp.getAnnotations(),
                        contentType, headers, entityStream);
               }
               catch (IOException e)
               {

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    @SuppressWarnings("unchecked")
    @Test
    public void testReadFrom() throws Exception {
        MessageBodyReader p = new BinaryDataProvider();
        byte[] bytes = (byte[])p.readFrom(byte[].class, null, null, 
                                          new ByteArrayInputStream("hi".getBytes()));
        assertTrue(Arrays.equals(new String("hi").getBytes(), bytes));
        
        InputStream is = (InputStream)p.readFrom(InputStream.class, null, null, 
                                          new ByteArrayInputStream("hi".getBytes()));

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        MessageBodyReader p = new BinaryDataProvider();
        byte[] bytes = (byte[])p.readFrom(byte[].class, null, null, 
                                          new ByteArrayInputStream("hi".getBytes()));
        assertTrue(Arrays.equals(new String("hi").getBytes(), bytes));
        
        InputStream is = (InputStream)p.readFrom(InputStream.class, null, null, 
                                          new ByteArrayInputStream("hi".getBytes()));
        bytes = IOUtils.readBytesFromStream(is);
        assertTrue(Arrays.equals(new String("hi").getBytes(), bytes));
    }

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            provider = ProviderFactory.getInstance()
                .createMessageBodyReader(targetTypeClass, type);
            // TODO : make the exceptions
            if (provider != null) {
                try {
                    return provider.readFrom(targetTypeClass, contentType, null, is);
                } catch (IOException e) {
                    e.printStackTrace();
                    throw new RuntimeException("Error deserializing input stream into target class "
                                               + targetTypeClass.getSimpleName() 
                                               + ", content type : " + contentType);

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        MultivaluedMap<String, String> form = new MultivaluedMapImpl();
        try {
            MessageBodyReader reader = context.getProviders().getMessageBodyReader(MultivaluedMap.class, formType, null,
                    contentType);
            if (reader != null) {
                form = (MultivaluedMap<String, String>) reader.readFrom(MultivaluedMap.class, formType, null, contentType,
                        context.getHttpHeaders().getRequestHeaders(), context.getContainerRequest().getEntityStream());
            }
        } catch (IllegalStateException e) {
            if (log.isTraceEnabled()) {
                log.trace(e.getMessage(), e);

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