org.jboss.netty.handler.codec.http.DefaultHttpMessage Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of netty Show documentation

The Netty project is an effort to provide an asynchronous event-driven network application framework and tools for rapid development of maintainable high performance and high scalability protocol servers and clients. In other words, Netty is a NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server.

There is a newer version: 4.0.0.Alpha8

Show newest version

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package org.jboss.netty.handler.codec.http;

import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.util.internal.StringUtil;

import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * The default {@link HttpMessage} implementation.
 */
public class DefaultHttpMessage implements HttpMessage {

    private final HttpHeaders headers = new HttpHeaders();
    private HttpVersion version;
    private ChannelBuffer content = ChannelBuffers.EMPTY_BUFFER;
    private boolean chunked;

    /**
     * Creates a new instance.
     */
    protected DefaultHttpMessage(final HttpVersion version) {
        setProtocolVersion(version);
    }

    public void addHeader(final String name, final Object value) {
        headers.addHeader(name, value);
    }

    public void setHeader(final String name, final Object value) {
        headers.setHeader(name, value);
    }

    public void setHeader(final String name, final Iterable values) {
        headers.setHeader(name, values);
    }

    public void removeHeader(final String name) {
        headers.removeHeader(name);
    }

    @Deprecated
    public long getContentLength() {
        return HttpHeaders.getContentLength(this);
    }

    @Deprecated
    public long getContentLength(long defaultValue) {
        return HttpHeaders.getContentLength(this, defaultValue);
    }

    public boolean isChunked() {
        if (chunked) {
            return true;
        } else {
            return HttpCodecUtil.isTransferEncodingChunked(this);
        }
    }

    public void setChunked(boolean chunked) {
        this.chunked = chunked;
        if (chunked) {
            setContent(ChannelBuffers.EMPTY_BUFFER);
        }
    }

    @Deprecated
    public boolean isKeepAlive() {
        return HttpHeaders.isKeepAlive(this);
    }

    public void clearHeaders() {
        headers.clearHeaders();
    }

    public void setContent(ChannelBuffer content) {
        if (content == null) {
            content = ChannelBuffers.EMPTY_BUFFER;
        }
        if (content.readable() && isChunked()) {
            throw new IllegalArgumentException(
                    "non-empty content disallowed if this.chunked == true");
        }
        this.content = content;
    }

    public String getHeader(final String name) {
        return headers.getHeader(name);
    }

    public List getHeaders(final String name) {
        return headers.getHeaders(name);
    }

    public List> getHeaders() {
        return headers.getHeaders();
    }

    public boolean containsHeader(final String name) {
        return headers.containsHeader(name);
    }

    public Set getHeaderNames() {
        return headers.getHeaderNames();
    }

    public HttpVersion getProtocolVersion() {
        return version;
    }

    public void setProtocolVersion(HttpVersion version) {
        if (version == null) {
            throw new NullPointerException("version");
        }
        this.version = version;
    }

    public ChannelBuffer getContent() {
        return content;
    }

    @Override
    public String toString() {
        StringBuilder buf = new StringBuilder();
        buf.append(getClass().getSimpleName());
        buf.append("(version: ");
        buf.append(getProtocolVersion().getText());
        buf.append(", keepAlive: ");
        buf.append(HttpHeaders.isKeepAlive(this));
        buf.append(", chunked: ");
        buf.append(isChunked());
        buf.append(')');
        buf.append(StringUtil.NEWLINE);
        appendHeaders(buf);

        // Remove the last newline.
        buf.setLength(buf.length() - StringUtil.NEWLINE.length());
        return buf.toString();
    }

    void appendHeaders(StringBuilder buf) {
        for (Map.Entry e: getHeaders()) {
            buf.append(e.getKey());
            buf.append(": ");
            buf.append(e.getValue());
            buf.append(StringUtil.NEWLINE);
        }
    }
}