/**
* <li>文件名：HttpCoder.java
* <li>说明：
* <li>创建人：CshBBrain;技术博客：http://cshbbrain.iteye.com/
* <li>创建日期：2011-11-18
* <li>修改人：
* <li>修改日期：
*/
package com.jason.server.clusters;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Iterator;
import java.util.UUID;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.jason.server.Response;
import com.jason.server.Client;
import com.jason.server.hander.CoderHandler;
import com.jason.util.CoderUtils;
/**
*
* * <pre>
* version 5-->
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-------+-+-------------+-------------------------------+
* |F|R|R|R| opcode|M| Payload len | Extended payload length |
* |I|S|S|S| (4) |A| (7) | (16/63) |
* |N|V|V|V| |S| | (if payload len==126/127) |
* | |1|2|3| |K| | |
* +-+-+-+-+-------+-+-------------+ - - - - - - - - - - - - - - - +
* | Extended payload length continued, if payload len == 127 |
* + - - - - - - - - - - - - - - - +-------------------------------+
* | |Masking-key, if MASK set to 1 |
* +-------------------------------+-------------------------------+
* | Masking-key (continued) | Payload Data |
* +-------------------------------- - - - - - - - - - - - - - - - +
* : Payload Data continued ... :
* + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +
* | Payload Data continued ... |
* +---------------------------------------------------------------+
* version 1--------4
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-------+-+-------------+-------------------------------+
* |M|R|R|R| opcode|R| Payload len | Extended payload length |
* |O|S|S|S| (4) |S| (7) | (16/63) |
* |R|V|V|V| |V| | (if payload len==126/127) |
* |E|1|2|3| |4| | |
* +-+-+-+-+-------+-+-------------+ - - - - - - - - - - - - - - - +
* | Extended payload length continued, if payload len == 127 |
* + - - - - - - - - - - - - - - - +-------------------------------+
* | | Extension data |
* +-------------------------------+ - - - - - - - - - - - - - - - +
* : :
* +---------------------------------------------------------------+
* : Application data :
* +---------------------------------------------------------------+
*
* </pre>
* <li>类型名称：
* <li>说明：cluster协议响应编码器
* <li>创建人：CshBBrain;技术博客：http://cshbbrain.iteye.com/
* <li>创建日期：2011-11-18
* <li>修改人：
* <li>修改日期：
*/
public class ClustersCoder extends CoderHandler {
private static Log log = LogFactory.getLog(ClustersCoder.class);// 日志记录器
public void process(Client sockector) {
Response msg = sockector.getResponseMsgsNotCode().poll();
while(msg != null){
try{
if(sockector.isHandShak()){
broundMsg(sockector,msg);
msg.bufferedContent();// 缓存内容
sockector.getResponseMsgs().add(msg);
}else{
if(!sockector.isClient()){
sockector.setHandShak(true);//握手已经完成
msg.bufferedContent();// 缓存内容
sockector.getResponseMsgs().add(msg);
}
}
}catch(IOException e){
e.printStackTrace();
}// 创建响应头部信息
msg = sockector.getResponseMsgsNotCode().poll();
}
}
/**
*
* <li>方法名：broundMsg
* <li>@param msg
* <li>@throws IOException
* <li>返回类型：void
* <li>说明：对clusters协议进行编码
* <li>创建人：CshBBrain;技术博客：http://cshbbrain.iteye.com/
* <li>创建日期：2012-8-21
* <li>修改人：
* <li>修改日期：
*/
public void broundMsg(Client sockector, Response msg) throws IOException{
byte[] msgs = CoderUtils.toByte(msg.getBody());
ClustersMessage messageFrame = sockector.getRequestWithFile().<ClustersMessage>getMessageHeader(msg.getRequestIndex());
if(messageFrame == null){
messageFrame = new ClustersMessage();
}
messageFrame.setDateLength(msgs.length);
byte[] headers = new byte[2];
// todo list
headers[0] = ClustersMessage.FIN;// 需要调整
headers[0] |= messageFrame.getRsv1() | messageFrame.getRsv2() | messageFrame.getRsv3() | ClustersMessage.TXT;
headers[1] = 0;
//headers[1] |= messageFrame.getMask() | messageFrame.getPayloadLen();
headers[1] |= 0x00 | messageFrame.getPayloadLen();
msg.appendBytes(headers);// 头部控制信息
if (messageFrame.getPayloadLen() == ClustersMessage.HAS_EXTEND_DATA) {// 处理数据长度为126位的情况
msg.appendBytes(CoderUtils.shortToByte(messageFrame.getPayloadLenExtended()));
} else if (messageFrame.getPayloadLen() == ClustersMessage.HAS_EXTEND_DATA_CONTINUE) {// 处理数据长度为127位的情况
msg.appendBytes(CoderUtils.longToByte(messageFrame.getPayloadLenExtendedContinued()));
}
/*if(messageFrame.isMask()){// 做了掩码处理的，需要传递掩码的key
byte[] keys = messageFrame.getMaskingKey();
msg.appendBytes(messageFrame.getMaskingKey());
for(int i = 0; i < msgs.length; ++i){// 进行掩码处理
msgs[i] ^= keys[i % 4];
}
}*/
msg.appendBytes(msgs);
sockector.getRequestWithFile().clearMessageHeader(msg.getRequestIndex());// 清理每次连接交互的数据
}
public void handShak(Client sockector) {
Response response = new Response();
StringBuilder sb = new StringBuilder();
try{
ClustersHandShak handShak = new ClustersHandShak(generateKey(),InetAddress.getLocalHost().getHostAddress().toString());
sb.append(ClustersConstants.CLUSTERS).append("\r\n")
.append(ClustersConstants.HOST).append(":").append(handShak.getHost()).append("\r\n")
.append(ClustersConstants.KEY).append(":").append(handShak.getKey()).append("\r\n")
.append(ClustersConstants.PROTOCOL).append(":").append(ClustersConstants.PROTOCOL).append("\r\n");
sockector.setHandShakObject(handShak);// 设置握手对象
}catch(UnknownHostException e){
e.printStackTrace();
}
response.setBody(sb.toString());
sockector.sendMessage(response);
//sockector.sendDirectMessage(response);// 发送消息
log.info("the response: " + sb.toString());
}
private String generateKey(){
String key = UUID.randomUUID().toString().replace("-", "");
return key.substring(0, 24);
}
}