Examples of javax.ws.rs.ext.WriterInterceptor

javax.ws.rs.ext.WriterInterceptor
Interface for message body writer interceptors that wrap around calls to {@link javax.ws.rs.ext.MessageBodyWriter#writeTo}.
Providers implementing {@code WriterInterceptor} contract must be either programmaticallyregistered in a JAX-RS runtime or must be annotated with {@link javax.ws.rs.ext.Provider @Provider} annotation to be automatically discoveredby the JAX-RS runtime during a provider scanning phase. Message body interceptor instances may also be discovered and bound {@link javax.ws.rs.container.DynamicFeature dynamically} to particular resource methods.
@author Santiago Pericas-Geertsen @author Bill Burke @author Marek Potociar @see MessageBodyWriter @since 2.0


    private boolean checkBufferingMode(Message m, List<WriterInterceptor> writers, boolean firstTry) {
        if (!firstTry) {
            return false;
        }
        WriterInterceptor last = writers.get(writers.size() - 1);
        MessageBodyWriter<Object> w = ((WriterInterceptorMBW)last).getMBW();
        Object outBuf = m.getContextualProperty(OUT_BUFFERING);
        boolean enabled = MessageUtils.isTrue(outBuf);
        boolean configurableProvider = w instanceof AbstractConfigurableProvider;
        if (!enabled && outBuf == null && configurableProvider) {

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                                                      parameterAnnotations,
                                                      mediaType,
                                                      m);
        if (mw != null) {
            
            @SuppressWarnings({
                "unchecked", "rawtypes"
            })
            WriterInterceptor mbwWriter = new WriterInterceptorMBW((MessageBodyWriter)mw, m);
              
            int size = writerInterceptors.size();

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                                Message message) 
        throws WebApplicationException, IOException {
        
        OutputStream entityStream = message.getContent(OutputStream.class);
        if (writers.size() > 1) {
            WriterInterceptor first = writers.remove(0);
            WriterInterceptorContext context = new WriterInterceptorContextImpl(entity,
                                                                                type, 
                                                                            genericType, 
                                                                            annotations,
                                                                            entityStream,
                                                                            message,
                                                                            writers);
            
            first.aroundWriteTo(context);
        } else {
            MessageBodyWriter<Object> writer = ((WriterInterceptorMBW)writers.get(0)).getMBW();
            if (type == byte[].class) {
                long size = writer.getSize(entity, type, genericType, annotations, mediaType);
                if (size != -1) {

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    @Override
    public void proceed() throws IOException {
        if (writers == null || writers.isEmpty()) {
            return;
        }
        WriterInterceptor next = writers.remove(0);
        next.aroundWriteTo(this);
    }

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                                                      mediaType,
                                                      m);
        int size = writerInterceptors.size();
        if (mw != null || size > 0) {
            
            @SuppressWarnings({
                "unchecked", "rawtypes"
            })
            WriterInterceptor mbwWriter = new WriterInterceptorMBW((MessageBodyWriter)mw, m);
              
            List<WriterInterceptor> interceptors = null;

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                                Message message) 
        throws WebApplicationException, IOException {
        
        OutputStream entityStream = message.getContent(OutputStream.class);
        if (writers.size() > 1) {
            WriterInterceptor first = writers.remove(0);
            WriterInterceptorContext context = new WriterInterceptorContextImpl(entity,
                                                                                type, 
                                                                            genericType, 
                                                                            annotations,
                                                                            entityStream,
                                                                            message,
                                                                            writers);
            
            first.aroundWriteTo(context);
        } else {
            MessageBodyWriter<Object> writer = ((WriterInterceptorMBW)writers.get(0)).getMBW();
            if (type == byte[].class) {
                long size = writer.getSize(entity, type, genericType, annotations, mediaType);
                if (size != -1) {

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                                                      parameterAnnotations,
                                                      mediaType,
                                                      m);
        if (mw != null) {
            
            @SuppressWarnings({
                "unchecked", "rawtypes"
            })
            WriterInterceptor mbwWriter = new WriterInterceptorMBW((MessageBodyWriter)mw);
              
            int size = writerInterceptors.size();

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                                Message message) 
        throws WebApplicationException, IOException {
        
        OutputStream entityStream = message.getContent(OutputStream.class);
        if (writers.size() > 1) {
            WriterInterceptor first = writers.remove(0);
            WriterInterceptorContext context = new WriterInterceptorContextImpl(entity,
                                                                                type, 
                                                                            genericType, 
                                                                            annotations, 
                                                                            mediaType,
                                                                            entityStream,
                                                                            message,
                                                                            writers);
            
            first.aroundWriteTo(context);
        } else {
            MessageBodyWriter<Object> writer = ((WriterInterceptorMBW)writers.get(0)).getMBW();
            writer.writeTo(entity, type, genericType, annotations, mediaType,
                           httpHeaders, entityStream);
        }

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    private boolean checkBufferingMode(Message m, List<WriterInterceptor> writers, boolean firstTry) {
        if (!firstTry) {
            return false;
        }
        WriterInterceptor last = writers.get(writers.size() - 1);
        MessageBodyWriter<Object> w = ((WriterInterceptorMBW)last).getMBW();
        Object outBuf = m.getContextualProperty(OUT_BUFFERING);
        boolean enabled = MessageUtils.isTrue(outBuf);
        boolean configurableProvider = w instanceof AbstractConfigurableProvider;
        if (!enabled && outBuf == null && configurableProvider) {

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                                                      parameterAnnotations,
                                                      mediaType,
                                                      m);
        if (mw != null) {
            
            @SuppressWarnings({
                "unchecked", "rawtypes"
            })
            WriterInterceptor mbwWriter = new WriterInterceptorMBW((MessageBodyWriter)mw);
              
            int size = writerInterceptors.size();

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