c53b8d5a85
Motivation: At the moment if you want to return a HTTP header containing multiple values you have to set/add that header once with the values wanted. If you used set/add with an array/iterable multiple HTTP header fields will be returned in the response. Note, that this is indeed a suggestion and additional work and tests should be added. This is mainly to bring up a discussion. Modifications: Added a flag to specify that when multiple values exist for a single HTTP header then add them as a comma separated string. In addition added a method to StringUtil to help escape comma separated value charsequences. Result: Allows for responses to be smaller.
174 lines
5.3 KiB
Java
174 lines
5.3 KiB
Java
/*
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* Copyright 2013 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.handler.codec.http;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.Unpooled;
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/**
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* Default implementation of a {@link FullHttpResponse}.
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*/
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public class DefaultFullHttpResponse extends DefaultHttpResponse implements FullHttpResponse {
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private final ByteBuf content;
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private final HttpHeaders trailingHeaders;
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private final boolean validateHeaders;
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public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status) {
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this(version, status, Unpooled.buffer(0));
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}
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public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status, ByteBuf content) {
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this(version, status, content, false);
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}
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public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status, boolean validateHeaders) {
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this(version, status, Unpooled.buffer(0), validateHeaders, false);
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}
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public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status, boolean validateHeaders,
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boolean singleFieldHeaders) {
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this(version, status, Unpooled.buffer(0), validateHeaders, singleFieldHeaders);
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}
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public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status,
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ByteBuf content, boolean singleFieldHeaders) {
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this(version, status, content, true, singleFieldHeaders);
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}
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public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status,
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ByteBuf content, boolean validateHeaders, boolean singleFieldHeaders) {
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super(version, status, validateHeaders, singleFieldHeaders);
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if (content == null) {
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throw new NullPointerException("content");
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}
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this.content = content;
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trailingHeaders = new DefaultHttpHeaders(validateHeaders, singleFieldHeaders);
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this.validateHeaders = validateHeaders;
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}
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@Override
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public HttpHeaders trailingHeaders() {
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return trailingHeaders;
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}
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@Override
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public ByteBuf content() {
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return content;
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}
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@Override
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public int refCnt() {
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return content.refCnt();
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}
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@Override
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public FullHttpResponse retain() {
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content.retain();
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return this;
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}
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@Override
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public FullHttpResponse retain(int increment) {
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content.retain(increment);
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return this;
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}
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@Override
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public FullHttpResponse touch() {
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content.touch();
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return this;
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}
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@Override
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public FullHttpResponse touch(Object hint) {
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content.touch(hint);
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return this;
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}
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@Override
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public boolean release() {
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return content.release();
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}
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@Override
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public boolean release(int decrement) {
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return content.release(decrement);
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}
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@Override
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public FullHttpResponse setProtocolVersion(HttpVersion version) {
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super.setProtocolVersion(version);
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return this;
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}
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@Override
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public FullHttpResponse setStatus(HttpResponseStatus status) {
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super.setStatus(status);
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return this;
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}
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/**
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* Copy this object
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*
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* @param copyContent
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* <ul>
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* <li>{@code true} if this object's {@link #content()} should be used to copy.</li>
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* <li>{@code false} if {@code newContent} should be used instead.</li>
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* </ul>
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* @param newContent
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* <ul>
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* <li>if {@code copyContent} is false then this will be used in the copy's content.</li>
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* <li>if {@code null} then a default buffer of 0 size will be selected</li>
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* </ul>
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* @return A copy of this object
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*/
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private FullHttpResponse copy(boolean copyContent, ByteBuf newContent) {
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DefaultFullHttpResponse copy = new DefaultFullHttpResponse(
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protocolVersion(), status(),
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copyContent ? content().copy() :
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newContent == null ? Unpooled.buffer(0) : newContent);
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copy.headers().set(headers());
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copy.trailingHeaders().set(trailingHeaders());
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return copy;
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}
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@Override
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public FullHttpResponse copy(ByteBuf newContent) {
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return copy(false, newContent);
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}
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@Override
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public FullHttpResponse copy() {
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return copy(true, null);
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}
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@Override
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public FullHttpResponse duplicate() {
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DefaultFullHttpResponse duplicate = new DefaultFullHttpResponse(protocolVersion(), status(),
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content().duplicate(), validateHeaders);
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duplicate.headers().set(headers());
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duplicate.trailingHeaders().set(trailingHeaders());
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return duplicate;
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}
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@Override
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public String toString() {
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return HttpMessageUtil.appendFullResponse(new StringBuilder(256), this).toString();
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}
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}
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