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.

    @SuppressWarnings("unchecked")
    @Test
    public void testReadByte() throws Exception {
        MessageBodyReader p = new PrimitiveTextProvider();
        
        Byte valueRead = (Byte)p.readFrom(byte.class, 
                                          null, 
                                          null, 
                                          null, 
                                          null, 
                                          new ByteArrayInputStream("1".getBytes()));

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    @SuppressWarnings("unchecked")
    @Test
    public void testReadBoolean() throws Exception {
        MessageBodyReader p = new PrimitiveTextProvider();
        
        boolean valueRead = (Boolean)p.readFrom(boolean.class, 
                                          null, 
                                          null, 
                                          null, 
                                          null, 
                                          new ByteArrayInputStream("true".getBytes()));

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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, 
                                          null, null, new ByteArrayInputStream("hi".getBytes()));
        assertTrue(Arrays.equals(new String("hi").getBytes(), bytes));
        
        InputStream is = (InputStream)p.readFrom(InputStream.class, null, null, null, null, 
            new ByteArrayInputStream("hi".getBytes()));

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

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        InputStream is = (InputStream)p.readFrom(InputStream.class, null, null, null, null, 
            new ByteArrayInputStream("hi".getBytes()));
        bytes = IOUtils.readBytesFromStream(is);
        assertTrue(Arrays.equals(new String("hi").getBytes(), bytes));
        
        Reader r = (Reader)p.readFrom(Reader.class, null, null, 
                       MediaType.valueOf("text/xml"), null, new ByteArrayInputStream("hi".getBytes()));
        assertEquals(IOUtils.toString(r), "hi");
    }
    
    @SuppressWarnings("unchecked")

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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), conn.getInputStream());
            } catch (Exception ex) {
                throw new WebApplicationException();
            }

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                                                   mediaType);


                if (mbr != null) {
                    Object read;
                    try {
                        read = mbr.readFrom(paramType,
                                     getGenericType(),
                                     getAnnotations(),
                                     mediaType,
                                     runtimeContext.getHttpHeaders().getRequestHeaders(),
                                     runtimeContext.getInputStream());

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

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

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        InputStream is = (InputStream)p.readFrom(InputStream.class, null, null, null, null, 
            new ByteArrayInputStream("hi".getBytes()));
        bytes = IOUtils.readBytesFromStream(is);
        assertTrue(Arrays.equals(new String("hi").getBytes(), bytes));
        
        Reader r = (Reader)p.readFrom(Reader.class, null, null, 
                       MediaType.valueOf("text/xml"), null, new ByteArrayInputStream("hi".getBytes()));
        assertEquals(IOUtils.toString(r), "hi");
    }
    
    @SuppressWarnings({ "unchecked", "rawtypes" })

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