Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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 com.cu.http.container.core.adaptor; import static io.netty.handler.codec.http.HttpHeaders.Names.LOCATION; import static io.netty.handler.codec.http.HttpHeaders.Names.SET_COOKIE; import io.netty.handler.codec.http.ClientCookieEncoder; import io.netty.handler.codec.http.Cookie; import io.netty.handler.codec.http.HttpContent; import io.netty.handler.codec.http.HttpHeaders; import io.netty.handler.codec.http.HttpResponse; import io.netty.handler.codec.http.HttpResponseStatus; import java.io.IOException; import java.io.PrintWriter; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.util.Collection; import java.util.Locale; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletResponse; /** * * date: 20151116 ?4:44:28 <br/> * ?? * 3.0?? */ public class NettyServletResponse implements HttpServletResponse { private HttpResponse originalResponse; private NettyServletOutputStream outputStream; private PrintWriter writer; private boolean responseCommited; public NettyServletResponse(HttpResponse response) { this.originalResponse = response; this.outputStream = new NettyServletOutputStream((HttpContent) response); this.writer = new PrintWriter(this.outputStream); } public HttpResponse getOriginalResponse() { return originalResponse; } public void addCookie(Cookie cookie) { HttpHeaders.addHeader(this.originalResponse, SET_COOKIE, ClientCookieEncoder.encode(cookie.getName(), cookie.getValue())); } public void addDateHeader(String name, long date) { HttpHeaders.addHeader(this.originalResponse, name, date); } public void addHeader(String name, String value) { HttpHeaders.addHeader(this.originalResponse, name, value); } public void addIntHeader(String name, int value) { HttpHeaders.addIntHeader(this.originalResponse, name, value); } @Override public void addCookie(javax.servlet.http.Cookie cookie) { //TODO Do we need to implement it ? } public boolean containsHeader(String name) { return this.originalResponse.headers().contains(name); } public void sendError(int sc) throws IOException { this.originalResponse.setStatus(HttpResponseStatus.valueOf(sc)); } public void sendError(int sc, String msg) throws IOException { this.originalResponse.setStatus(new HttpResponseStatus(sc, msg)); } public void sendRedirect(String location) throws IOException { setStatus(302); setHeader(LOCATION, location); } public void setDateHeader(String name, long date) { HttpHeaders.setHeader(this.originalResponse, name, date); } public void setHeader(String name, String value) { HttpHeaders.setHeader(this.originalResponse, name, value); } public void setIntHeader(String name, int value) { HttpHeaders.setIntHeader(this.originalResponse, name, value); } @Override public ServletOutputStream getOutputStream() throws IOException { return this.outputStream; } @Override public PrintWriter getWriter() throws IOException { return this.writer; } public void setStatus(int sc) { this.originalResponse.setStatus(HttpResponseStatus.valueOf(sc)); } public void setStatus(int sc, String sm) { this.originalResponse.setStatus(new HttpResponseStatus(sc, sm)); } @Override public void setContentType(String type) { HttpHeaders.setHeader(this.originalResponse, HttpHeaders.Names.CONTENT_TYPE, type); } @Override public void setContentLength(int len) { HttpHeaders.setContentLength(this.originalResponse, len); } @Override public boolean isCommitted() { return this.responseCommited; } @Override public void reset() { if (isCommitted()) { throw new IllegalStateException("Response already commited!"); } this.originalResponse.headers().clear(); this.resetBuffer(); } @Override public void resetBuffer() { if (isCommitted()) { throw new IllegalStateException("Response already commited!"); } this.outputStream.resetBuffer(); } @Override public void flushBuffer() throws IOException { this.getWriter().flush(); this.responseCommited = true; } @Override public int getBufferSize() { return this.outputStream.getBufferSize(); } @Override public void setBufferSize(int size) { // we using always dynamic buffer for now } public String encodeRedirectURL(String url) { return this.encodeURL(url); } public String encodeRedirectUrl(String url) { return this.encodeURL(url); } public String encodeURL(String url) { try { return URLEncoder.encode(url, getCharacterEncoding()); } catch (UnsupportedEncodingException e) { throw new RuntimeException("Error encoding url!", e); } } public String encodeUrl(String url) { return this.encodeRedirectURL(url); } @Override public String getCharacterEncoding() { throw new IllegalStateException("Method 'getCharacterEncoding' not yet implemented!"); } @Override public String getContentType() { throw new IllegalStateException("Method 'getContentType' not yet implemented!"); } @Override public Locale getLocale() { throw new IllegalStateException("Method 'getLocale' not yet implemented!"); } @Override public void setCharacterEncoding(String charset) { throw new IllegalStateException("Method 'setCharacterEncoding' not yet implemented!"); } @Override public void setLocale(Locale loc) { throw new IllegalStateException("Method 'setLocale' not yet implemented!"); } /* (non-Javadoc) * @see javax.servlet.http.HttpServletResponse#getHeader(java.lang.String) */ @Override public String getHeader(String arg0) { // TODO Auto-generated method stub return null; } /* (non-Javadoc) * @see javax.servlet.http.HttpServletResponse#getHeaderNames() */ @Override public Collection<String> getHeaderNames() { // TODO Auto-generated method stub return null; } /* (non-Javadoc) * @see javax.servlet.http.HttpServletResponse#getHeaders(java.lang.String) */ @Override public Collection<String> getHeaders(String arg0) { // TODO Auto-generated method stub return null; } /* (non-Javadoc) * @see javax.servlet.http.HttpServletResponse#getStatus() */ @Override public int getStatus() { // TODO Auto-generated method stub return 0; } }