/**
* @Title: decode @Description: TODO 解码器
*
* @author anlong
* @throws
*/
@SuppressWarnings("static-access")
public void decode(InputStream stream) throws Exception {
try {
// 输入IO流
inputStream = stream;
if (inputStream == null) {
IMLog.anlong("IO流中没有数据响应!");
throw new IOException();
}
// 消息体字节大小,不包括表示大小的4个字节
int limit = 0;
// 消息字节大小,包括表示大小的4个字节
int msgSize = 0;
// 消息字节数组
byte[] data = null;
// 保证IO流中可读字节数大于 4个字节
byte[] dataSize = new byte[HandleStaticValue.PROTOCOL_SIZE];
if (inputStream.read(dataSize) == HandleStaticValue.PROTOCOL_SIZE) {
msgSize = ByteAndInt.byteArray2Int(dataSize);
IMLog.anlong("响应报文字节大小:" + msgSize);
// 标识从该处读取剩余字节数
limit = msgSize - HandleStaticValue.PROTOCOL_SIZE;
IMLog.anlong("响应报文体字节数:" + limit + "=" + Utils.getFileSizeString((long) limit));
// TODO 大于10M丢弃
if (limit > 10000000) {
IMLog.anlong("丢弃一个大小为 " + limit + "的数据包!");
throw new IOException();
}
// 定义消息字节数组大小
data = new byte[limit];
}
// 循环读取消息字节
int len = 0;
while (len < limit) {
len += inputStream.read(data, len, (limit - len));
IMLog.anlong("读取字节数:" + len);
}
if (data == null) throw new IOException();
IMLog.anlong("读取流完成，byte[]的长度：" + data.length);
dataInputStream = new DataInputStream(new ByteArrayInputStream(data));
if (dataInputStream != null) {
// 业务编码
short bCode = dataInputStream.readShort();
// 密钥
int key = dataInputStream.readInt();
// 用户ID
int uid = dataInputStream.readInt();
// 返回编码
short rtCode = dataInputStream.readShort();
// 错误编码
String rtMsg = dataInputStream.readUTF();
// 消息流水号
int msgSerial = dataInputStream.readInt();
// 消息头打印
IMLog.anlong(
"limit size:"
+ limit
+ " bCode:"
+ bCode
+ " key:"
+ key
+ " uid:"
+ uid
+ " rtCode:"
+ rtCode
+ " rtMsg:"
+ rtMsg
+ " msgSerial:"
+ msgSerial);
if (bCode == 0) {
IMLog.anlong("业务编码错误!");
throw new IOException();
}
// 获取对象
String requestPath = HandleStaticValue.RESPONSE_PACKEAGE + ".Response" + bCode;
Class requestClass = Class.forName(requestPath);
// 解析消息体
Object obj = ReadValue(requestClass, dataInputStream);
// 反射设置消息头
ReflectionUtil.invokeMethod(
obj, "init", msgSize, bCode, key, uid, rtCode, rtMsg, msgSerial);
// 分发事件
try {
if (bCode != 0 && obj != null) {
MessageEvent event = new MessageEvent(bCode, obj);
new MessageEventSource().getSingleton().notifyMessageEvent(event);
}
} catch (Exception e) {
IMLog.anlong("监听队列没有找到 " + bCode + "!");
IMLog.anlong("已丢弃一个没有注册监听的数据包:" + bCode + "!");
throw e;
}
} else {
IMLog.anlong("没有数据响应!");
throw new Exception();
}
} catch (Exception e) {
throw e;
}
}
/** 利用反射解析IO数据，返回数据对象 */
@SuppressWarnings("unchecked")
private Object ReadValue(Class<Object> clz, DataInputStream dataInputStream) {
// 创建对象实例
Object obj = null;
try {
obj = clz.newInstance();
} catch (InstantiationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalAccessException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// 反射对象名称List集合
Field arrField = null;
try {
arrField = obj.getClass().getDeclaredField("fieldArr");
} catch (NoSuchFieldException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
arrField.setAccessible(true);
String[] fieldList = null;
try {
fieldList = (String[]) arrField.get(obj);
} catch (IllegalArgumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalAccessException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// 属性类型
String fieldType = null;
// 首字母大写名称
String fieldNameUpper = null;
for (String fieldName : fieldList) {
Field field = null;
try {
field = obj.getClass().getDeclaredField(fieldName);
} catch (NoSuchFieldException e1) {
Log.e(TAG, "无法找到映射解析类------------->" + fieldName);
continue;
}
fieldType = field.getType().getSimpleName();
fieldNameUpper = Character.toUpperCase(fieldName.charAt(0)) + fieldName.substring(1);
if (fieldType.equals("Byte")) {
/*byte val = dataInputStream.readByte();
IMLog.anlong(fieldNameUpper + ": " + val);
ReflectionUtil.invokeMethod(obj, "set"+fieldNameUpper, val);*/
try {
ReflectionUtil.invokeMethod(obj, "set" + fieldNameUpper, dataInputStream.readByte());
} catch (Exception e) {
Log.e(TAG, "映射解析--Byte--错误->set" + fieldNameUpper);
continue;
}
} else if (fieldType.equals("Short")) {
// short val = dataInputStream.readShort();
// IMLog.anlong(fieldNameUpper + ": " + val);
// ReflectionUtil.invokeMethod(obj, "set"+fieldNameUpper, val);
try {
ReflectionUtil.invokeMethod(obj, "set" + fieldNameUpper, dataInputStream.readShort());
} catch (Exception e) {
Log.e(TAG, "映射解析--Short--错误->set" + fieldNameUpper);
continue;
}
} else if (fieldType.equals("Integer")) {
// int val = dataInputStream.readInt();
// IMLog.anlong(fieldNameUpper + ": " + val);
// ReflectionUtil.invokeMethod(obj, "set"+fieldNameUpper, val);
try {
ReflectionUtil.invokeMethod(obj, "set" + fieldNameUpper, dataInputStream.readInt());
} catch (Exception e) {
Log.e(TAG, "映射解析--Integer--错误->set" + fieldNameUpper);
continue;
}
} else if (fieldType.equals("String")) {
String value = null;
try {
value = dataInputStream.readUTF();
} catch (IOException e1) {
Log.e(TAG, "映射解析--readUTF--错误->set" + fieldNameUpper);
continue;
}
IMLog.anlong(fieldNameUpper + ": " + value);
if (value.equals("蔡健")) {
Log.e("debug", "-------------出现警告解析");
}
try {
ReflectionUtil.invokeMethod(obj, "set" + fieldNameUpper, value);
} catch (Exception e) {
Log.e(TAG, "映射解析--String--错误->set" + fieldNameUpper);
continue;
}
} else if (fieldType.equals("List")) { // 集合数据类型
// 数组长度
short arrSize = 0;
try {
arrSize = dataInputStream.readShort();
} catch (IOException e) {
Log.e(TAG, "映射解析集合数据类型--List--错误->");
continue;
}
Type fc = field.getGenericType();
List<Object> list = new ArrayList<Object>();
// 这里判断是泛型集合
if (fc instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) fc;
// 得到泛型里的class类型对象。
Class<Object> genericClazz = (Class<Object>) pt.getActualTypeArguments()[0];
// 向集合添加数据
for (int i = 0; i < arrSize; i++) {
try {
// 基本数据类型
if (genericClazz.getSimpleName().equals("Byte")) {
list.add(dataInputStream.readByte());
} else if (genericClazz.getSimpleName().equals("Short")) {
list.add(dataInputStream.readShort());
} else if (genericClazz.getSimpleName().equals("Integer")) {
list.add(dataInputStream.readInt());
} else if (genericClazz.getSimpleName().equals("String")) {
String str = dataInputStream.readUTF();
list.add(str);
} else { // 自定义数据类型
// 获取对象大小
int byteCount = dataInputStream.readShort();
IMLog.anlong("[响应]对象大小:" + byteCount);
byte[] objdata = new byte[byteCount];
dataInputStream.readFully(objdata, 0, byteCount);
DataInputStream dataInputStream1 =
new DataInputStream(new ByteArrayInputStream(objdata));
// 递归获取对象信息
list.add(ReadValue(genericClazz, dataInputStream1));
}
} catch (IOException e) {
Log.e(TAG, "映射解析集合数据类型--List--错误->");
continue;
}
}
// 反射设置list集合
Method method2 = null;
try {
method2 = clz.getMethod("set" + fieldNameUpper, List.class);
} catch (NoSuchMethodException e1) {
Log.e(TAG, "映射解析反射设置list集合--List--错误-> set" + fieldNameUpper);
continue;
}
try {
method2.invoke(obj, list);
} catch (Exception e) {
e.printStackTrace();
continue;
}
}
} else { // 自定义数据类型
String requestPath = HandleStaticValue.RESPONSE_VO + "." + fieldType;
Class requestClass = null;
try {
requestClass = Class.forName(requestPath);
} catch (ClassNotFoundException e) {
Log.e(TAG, "映射解析自定义数据类型----错误->" + requestPath);
e.printStackTrace();
continue;
}
try {
ReflectionUtil.invokeMethod(
obj, "set" + fieldNameUpper, ReadValue(requestClass, dataInputStream));
} catch (Exception e) {
Log.e(TAG, "映射解析自定义数据类型错误===注意字符类型->" + requestPath);
e.printStackTrace();
continue;
}
}
}
return obj;
}