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The Async Http Client (AHC) classes.

There is a newer version: 3.0.0

/*
 * Copyright (c) 2014 AsyncHttpClient Project. All rights reserved.
 *
 * This program is licensed to you under the Apache License Version 2.0,
 * and you may not use this file except in compliance with the Apache License Version 2.0.
 * You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the Apache License Version 2.0 is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
 */
package org.asynchttpclient.request.body.multipart.part;

import io.netty.buffer.ByteBuf;

import java.nio.ByteBuffer;

public interface PartVisitor {

    void withBytes(byte[] bytes);

    void withByte(byte b);

    class CounterPartVisitor implements PartVisitor {

        private int count = 0;

        @Override
        public void withBytes(byte[] bytes) {
            count += bytes.length;
        }

        @Override
        public void withByte(byte b) {
            count++;
        }

        public int getCount() {
            return count;
        }
    }

    class ByteBufferVisitor implements PartVisitor {

        private final ByteBuffer target;

        public ByteBufferVisitor(ByteBuffer target) {
            this.target = target;
        }

        @Override
        public void withBytes(byte[] bytes) {
            target.put(bytes);
        }

        @Override
        public void withByte(byte b) {
            target.put(b);
        }
    }
    
    class ByteBufVisitor implements PartVisitor {
        private final ByteBuf target;

        public ByteBufVisitor(ByteBuf target) {
            this.target = target;
        }

        @Override
        public void withBytes(byte[] bytes) {
            target.writeBytes(bytes);
        }

        @Override
        public void withByte(byte b) {
            target.writeByte(b);
        }
    }
}