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jsync.io is a non-blocking, event-driven networking framework for Java

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/*
 * Copyright (c) 2011-2013 The original author or authors
 * ------------------------------------------------------
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 *
 *     The Eclipse Public License is available at
 *     http://www.eclipse.org/legal/epl-v10.html
 *
 *     The Apache License v2.0 is available at
 *     http://www.opensource.org/licenses/apache2.0.php
 *
 * You may elect to redistribute this code under either of these licenses.
 */
package io.jsync.http.impl;

import io.netty.buffer.ByteBuf;
import io.netty.handler.codec.http.*;

/**
 * Helper wrapper class which allows to assemble a LastHttpContent and a HttpRequest into one "packet" and so more
 * efficient write it through the pipeline.
 *
 * @author Norman Maurer
 */
class AssembledFullHttpRequest extends AssembledHttpRequest implements FullHttpRequest {

    public AssembledFullHttpRequest(HttpRequest request, LastHttpContent content) {
        super(request, content);
    }

    public AssembledFullHttpRequest(HttpRequest request) {
        super(request, LastHttpContent.EMPTY_LAST_CONTENT);
    }

    public AssembledFullHttpRequest(HttpRequest request, ByteBuf buf) {
        super(request, toLastContent(buf));
    }

    private static LastHttpContent toLastContent(ByteBuf buf) {
        if (buf.isReadable()) {
            return new DefaultLastHttpContent(buf, false);
        } else {
            return LastHttpContent.EMPTY_LAST_CONTENT;
        }
    }

    @Override
    public AssembledFullHttpRequest setUri(String uri) {
        super.setUri(uri);
        return this;
    }

    @Override
    public AssembledFullHttpRequest setProtocolVersion(HttpVersion version) {
        super.setProtocolVersion(version);
        return this;
    }

    @Override
    public AssembledFullHttpRequest setMethod(HttpMethod method) {
        super.setMethod(method);
        return this;
    }

    @Override
    public AssembledFullHttpRequest duplicate() {
        throw new UnsupportedOperationException();
    }

    @Override
    public AssembledFullHttpRequest copy() {
        throw new UnsupportedOperationException();
    }

    @Override
    public HttpHeaders trailingHeaders() {
        return ((LastHttpContent) content).trailingHeaders();
    }

    @Override
    public AssembledFullHttpRequest retain() {
        super.retain();
        return this;
    }

    @Override
    public AssembledFullHttpRequest retain(int increment) {
        super.retain(increment);
        return this;
    }
}