/*
 * Copyright (c) 2010, 2019 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.message.internal;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;

/**
 * Default Jersey byte array entity provider (reader and writer).
 *
 * @author Paul Sandoz
 * @author Marek Potociar
 */
@Produces({"application/octet-stream", "*/*"})
@Consumes({"application/octet-stream", "*/*"})
public final class ByteArrayProvider extends AbstractMessageReaderWriterProvider<byte[]> {

    @Override
    public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return type == byte[].class;
    }

    @Override
    public byte[] readFrom(
            Class<byte[]> type,
            Type genericType,
            Annotation annotations[],
            MediaType mediaType,
            MultivaluedMap<String, String> httpHeaders,
            InputStream entityStream) throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        writeTo(entityStream, out);
        return out.toByteArray();
    }

    @Override
    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return type == byte[].class;
    }

    @Override
    public void writeTo(
            byte[] t,
            Class<?> type,
            Type genericType,
            Annotation annotations[],
            MediaType mediaType,
            MultivaluedMap<String, Object> httpHeaders,
            OutputStream entityStream) throws IOException {
        entityStream.write(t);
    }

    @Override
    public long getSize(byte[] t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return t.length;
    }
}
