io.netty.handler.codec.http.HttpResponseEncoder Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * 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 io.netty.handler.codec.http;

import io.netty.buffer.ByteBuf;

import static io.netty.handler.codec.http.HttpConstants.*;

/**
 * Encodes an {@link HttpResponse} or an {@link HttpContent} into
 * a {@link ByteBuf}.
 */
public class HttpResponseEncoder extends HttpObjectEncoder {
    private static final byte[] CRLF = { CR, LF };

    @Override
    public boolean acceptOutboundMessage(Object msg) throws Exception {
        return super.acceptOutboundMessage(msg) && !(msg instanceof HttpRequest);
    }

    @Override
    protected void encodeInitialLine(ByteBuf buf, HttpResponse response) throws Exception {
        response.getProtocolVersion().encode(buf);
        buf.writeByte(SP);
        response.getStatus().encode(buf);
        buf.writeBytes(CRLF);
    }
}