Java tutorial
/* * Copyright 2013 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 io.netty.buffer.Unpooled; import io.netty.util.IllegalReferenceCountException; import static io.netty.util.internal.ObjectUtil.checkNotNull; /** * Default implementation of {@link FullHttpRequest}. */ public class DefaultFullHttpRequest extends DefaultHttpRequest implements FullHttpRequest { private final ByteBuf content; private final HttpHeaders trailingHeader; /** * Used to cache the value of the hash code and avoid {@link IllegalReferenceCountException}. */ private int hash; public DefaultFullHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri) { this(httpVersion, method, uri, Unpooled.buffer(0)); } public DefaultFullHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, ByteBuf content) { this(httpVersion, method, uri, content, true); } public DefaultFullHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, boolean validateHeaders) { this(httpVersion, method, uri, Unpooled.buffer(0), validateHeaders); } public DefaultFullHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, ByteBuf content, boolean validateHeaders) { super(httpVersion, method, uri, validateHeaders); this.content = checkNotNull(content, "content"); trailingHeader = new DefaultHttpHeaders(validateHeaders); } public DefaultFullHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, ByteBuf content, HttpHeaders headers, HttpHeaders trailingHeader) { super(httpVersion, method, uri, headers); this.content = checkNotNull(content, "content"); this.trailingHeader = checkNotNull(trailingHeader, "trailingHeader"); } @Override public HttpHeaders trailingHeaders() { return trailingHeader; } @Override public ByteBuf content() { return content; } @Override public int refCnt() { return content.refCnt(); } @Override public FullHttpRequest retain() { content.retain(); return this; } @Override public FullHttpRequest retain(int increment) { content.retain(increment); return this; } @Override public FullHttpRequest touch() { content.touch(); return this; } @Override public FullHttpRequest touch(Object hint) { content.touch(hint); return this; } @Override public boolean release() { return content.release(); } @Override public boolean release(int decrement) { return content.release(decrement); } @Override public FullHttpRequest setProtocolVersion(HttpVersion version) { super.setProtocolVersion(version); return this; } @Override public FullHttpRequest setMethod(HttpMethod method) { super.setMethod(method); return this; } @Override public FullHttpRequest setUri(String uri) { super.setUri(uri); return this; } @Override public FullHttpRequest copy() { return replace(content().copy()); } @Override public FullHttpRequest duplicate() { return replace(content().duplicate()); } @Override public FullHttpRequest retainedDuplicate() { return replace(content().retainedDuplicate()); } @Override public FullHttpRequest replace(ByteBuf content) { FullHttpRequest request = new DefaultFullHttpRequest(protocolVersion(), method(), uri(), content, headers().copy(), trailingHeaders().copy()); request.setDecoderResult(decoderResult()); return request; } @Override public int hashCode() { int hash = this.hash; if (hash == 0) { if (content().refCnt() != 0) { try { hash = 31 + content().hashCode(); } catch (IllegalReferenceCountException ignored) { // Handle race condition between checking refCnt() == 0 and using the object. hash = 31; } } else { hash = 31; } hash = 31 * hash + trailingHeaders().hashCode(); hash = 31 * hash + super.hashCode(); this.hash = hash; } return hash; } @Override public boolean equals(Object o) { if (!(o instanceof DefaultFullHttpRequest)) { return false; } DefaultFullHttpRequest other = (DefaultFullHttpRequest) o; return super.equals(other) && content().equals(other.content()) && trailingHeaders().equals(other.trailingHeaders()); } @Override public String toString() { return HttpMessageUtil.appendFullRequest(new StringBuilder(256), this).toString(); } }