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The Async Http Client (AHC) classes.

There is a newer version: 3.0.0

/*
 * Copyright (c) 2015 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 io.netty.buffer.Unpooled;

import java.io.IOException;
import java.nio.channels.WritableByteChannel;

import org.asynchttpclient.request.body.multipart.StringPart;

public class StringMultipartPart extends MultipartPart {

    private final ByteBuf contentBuffer;

    public StringMultipartPart(StringPart part, byte[] boundary) {
        super(part, boundary);
        contentBuffer = Unpooled.wrappedBuffer(part.getValue().getBytes(part.getCharset()));
    }

    @Override
    protected long getContentLength() {
        return contentBuffer.capacity();
    }

    @Override
    protected long transferContentTo(ByteBuf target) throws IOException {
        return transfer(contentBuffer, target, MultipartState.POST_CONTENT);
    }

    @Override
    protected long transferContentTo(WritableByteChannel target) throws IOException {
        return transfer(contentBuffer, target, MultipartState.POST_CONTENT);
    }

    @Override
    public void close() {
        super.close();
        contentBuffer.release();
    }
}