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package org.glassfish.jersey.client;

import java.io.IOException;
import java.io.InputStream;

/**
 * Chunk data parser.
 *
 * Implementations of this interface are used by a {@link org.glassfish.jersey.client.ChunkedInput}
 * instance for parsing response entity input stream into chunks.
 * 

* Chunk parsers are expected to read data from the response entity input stream * until a non-empty data chunk is fully read and then return the chunk data back * to the {@link org.glassfish.jersey.client.ChunkedInput} instance for further * processing (i.e. conversion into a specific Java type). *

*

* Chunk parsers are typically expected to skip any empty chunks (the chunks that do * not contain any data) or any control meta-data associated with chunks, however it * is not a hard requirement to do so. The decision depends on the knowledge of which * {@link javax.ws.rs.ext.MessageBodyReader} implementation is selected for de-serialization * of the chunk data. *

* * @author Marek Potociar (marek.potociar at oracle.com) */ public interface ChunkParser { /** * Invoked by {@link org.glassfish.jersey.client.ChunkedInput} to get the data for * the next chunk. * * @param responseStream response entity input stream. * @return next chunk data represented as an array of bytes, or {@code null} * if no more chunks are available. * @throws java.io.IOException in case reading from the response entity fails. */ public byte[] readChunk(InputStream responseStream) throws IOException; }




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