本文整理汇总了Java中org.apache.mina.core.buffer.IoBuffer.compact方法的典型用法代码示例。如果您正苦于以下问题：Java IoBuffer.compact方法的具体用法？Java IoBuffer.compact怎么用？Java IoBuffer.compact使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.mina.core.buffer.IoBuffer的用法示例。
在下文中一共展示了IoBuffer.compact方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: decode
import org.apache.mina.core.buffer.IoBuffer; //导入方法依赖的package包/类
public void decode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {
//必须保证每一个数据包的字节缓存都和session绑定在一起，不然就读取不了上一次剩余的数据了
CodecContext context = SessionManager.INSTANCE.getSessionAttr(session, SessionProperties.CODEC_CONTEXT, CodecContext.class);
if (context == null) {
context = new CodecContext();
session.setAttribute(SessionProperties.CODEC_CONTEXT, context);
}
IoBuffer ioBuffer = context.getBuffer();
ioBuffer.put(in);
//在循环里迭代，以处理数据粘包
for (; ;) {
ioBuffer.flip();
//消息元信息常量4表示消息body前面的两个short字段，一个表示moduel，一个表示cmd,
final int METE_SIZE = 4;
if (ioBuffer.remaining() < METE_SIZE) {
ioBuffer.compact();
return;
}
//----------------消息协议格式-------------------------
// packetLength | moduleId | cmd | body
// int short short byte[]
int length = ioBuffer.getInt();
//int packLen = length + 4;
//大于消息body长度，说明至少有一条完整的message消息
if (ioBuffer.remaining() >= length) {
short moduleId = ioBuffer.getShort();
short cmd = ioBuffer.getShort();
byte[] body = new byte[length-METE_SIZE];
ioBuffer.get(body);
Message msg = readMessage(moduleId, cmd, body);
if (moduleId > 0) {
out.write(msg);
} else { //属于组合包
CombineMessage combineMessage = (CombineMessage)msg;
List<Packet> packets = combineMessage.getPackets();
for (Packet packet :packets) {
//依次拆包反序列化为具体的Message
out.write(Packet.asMessage(packet));
}
}
if (ioBuffer.remaining() == 0) {
ioBuffer.clear();
break;
}
ioBuffer.compact();
} else{
//数据包不完整，继续等待数据到达
ioBuffer.rewind();
ioBuffer.compact();
break;
}
}
}
示例2: messageReceived
import org.apache.mina.core.buffer.IoBuffer; //导入方法依赖的package包/类
@Override
public void messageReceived ( final NextFilter nextFilter, final IoSession session, final Object message ) throws Exception
{
if ( ! ( message instanceof IoBuffer ) )
{
nextFilter.messageReceived ( session, message );
return;
}
final IoBuffer in = (IoBuffer)message;
final IoBuffer sessionBuffer = getSessionBuffer ( session );
// first add to the session buffer (may be optimized later)
sessionBuffer.position ( sessionBuffer.limit () );
sessionBuffer.put ( in );
sessionBuffer.flip ();
while ( sessionBuffer.remaining () >= 4 )
{
final int len = sessionBuffer.getUnsignedShort ( 2 );
if ( sessionBuffer.remaining () < len )
{
logger.debug ( "Next packet requires {} bytes", new Object[] { len } );
// not enough data for body
return;
}
// convert
final IoBuffer data = IoBuffer.allocate ( len - 4 );
sessionBuffer.get (); // version
sessionBuffer.get (); // reserved
sessionBuffer.getUnsignedShort (); // length
sessionBuffer.get ( data.array () );
nextFilter.messageReceived ( session, data );
logger.debug ( "{} bytes left in session buffer", sessionBuffer.remaining () );
}
if ( sessionBuffer.hasRemaining () )
{
sessionBuffer.compact ();
}
else
{
sessionBuffer.clear ().flip ();
}
}