Java ChannelBuffer.readBytes方法代码示例

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
protected void testEecode_assertEquals(Object request,byte[] ret, boolean isServerside) throws IOException{
    //init channel
    Channel channel = isServerside? getServerSideChannel(url) : getCliendSideChannel(url);

    ChannelBuffer buffer = ChannelBuffers.dynamicBuffer(1024);

    codec.encode(channel, buffer, request);
    byte[] data = new byte[buffer.readableBytes()];
    buffer.readBytes(data);

    Assert.assertEquals(ret.length, data.length);
    for(int i=0;i<ret.length;i++){
        if (ret[i] != data[i]){
            Assert.fail();
        }
    }
}
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
@Test 
public void test_Encode_Request() throws IOException{
    ChannelBuffer encodeBuffer = ChannelBuffers.dynamicBuffer(2014);
    Channel channel = getCliendSideChannel(url);
    Request request = new Request();
    Person person = new Person();
    request.setData(person);
    
    codec.encode(channel, encodeBuffer, request);

    //encode resault check need decode
    byte[] data = new byte[encodeBuffer.writerIndex()];
    encodeBuffer.readBytes(data);
    ChannelBuffer decodeBuffer = ChannelBuffers.wrappedBuffer(data);
    Request obj = (Request)codec.decode(channel, decodeBuffer);
    Assert.assertEquals(request.isBroken(), obj.isBroken());
    Assert.assertEquals(request.isHeartbeat(), obj.isHeartbeat());
    Assert.assertEquals(request.isTwoWay(), obj.isTwoWay());
    Assert.assertEquals(person, obj.getData());
}
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
public Object decode(Channel channel, ChannelBuffer buffer) throws IOException {
    byte[] bytes = new byte[buffer.readableBytes()];
    int savedReaderIndex = buffer.readerIndex();
    buffer.readBytes(bytes);
    UnsafeByteArrayInputStream is = new UnsafeByteArrayInputStream(bytes);
    Object result = codec.decode(channel, is);
    buffer.readerIndex(savedReaderIndex + is.position());
    return result == Codec.NEED_MORE_INPUT ? DecodeResult.NEED_MORE_INPUT : result;
}
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
@Test 
    public void test_Encode_Response() throws IOException{
        ChannelBuffer encodeBuffer = ChannelBuffers.dynamicBuffer(1024);
        Channel channel = getCliendSideChannel(url);
        Response response = new Response();
        response.setHeartbeat(true);
        response.setId(1001l);
        response.setStatus((byte)20 );
        response.setVersion("11");
        Person person = new Person();
        response.setResult(person);
        
        codec.encode(channel, encodeBuffer, response);
        byte[] data = new byte[encodeBuffer.writerIndex()];
        encodeBuffer.readBytes(data);

        //encode resault check need decode 
        ChannelBuffer decodeBuffer = ChannelBuffers.wrappedBuffer(data);
        Response obj = (Response)codec.decode(channel, decodeBuffer);
        
        Assert.assertEquals(response.getId(), obj.getId());
        Assert.assertEquals(response.getStatus(), obj.getStatus());
        Assert.assertEquals(response.isHeartbeat(), obj.isHeartbeat());
        Assert.assertEquals(person, obj.getResult());
        // encode response verson ?? 
//        Assert.assertEquals(response.getVersion(), obj.getVersion());
        
    }
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
@Test 
    public void test_Encode_Error_Response() throws IOException{
        ChannelBuffer encodeBuffer = ChannelBuffers.dynamicBuffer(1024);
        Channel channel = getCliendSideChannel(url);
        Response response = new Response();
        response.setHeartbeat(true);
        response.setId(1001l);
        response.setStatus((byte)10 );
        response.setVersion("11");
        String badString = "bad" ;
        response.setErrorMessage(badString);
        Person person = new Person();
        response.setResult(person);
        
        codec.encode(channel, encodeBuffer, response);
        byte[] data = new byte[encodeBuffer.writerIndex()];
        encodeBuffer.readBytes(data);

        //encode resault check need decode 
        ChannelBuffer decodeBuffer = ChannelBuffers.wrappedBuffer(data);
        Response obj = (Response)codec.decode(channel, decodeBuffer);
        Assert.assertEquals(response.getId(), obj.getId());
        Assert.assertEquals(response.getStatus(), obj.getStatus());
        Assert.assertEquals(response.isHeartbeat(), obj.isHeartbeat());
        Assert.assertEquals(badString, obj.getErrorMessage());
        Assert.assertEquals(null, obj.getResult());
//        Assert.assertEquals(response.getVersion(), obj.getVersion());
    }
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
protected Object decode(Channel channel, ChannelBuffer buffer, int readable, byte[] header) throws IOException {
    // check magic number.
    if (readable > 0 && header[0] != MAGIC_HIGH 
            || readable > 1 && header[1] != MAGIC_LOW) {
        int length = header.length;
        if (header.length < readable) {
            header = Bytes.copyOf(header, readable);
            buffer.readBytes(header, length, readable - length);
        }
        for (int i = 1; i < header.length - 1; i ++) {
            if (header[i] == MAGIC_HIGH && header[i + 1] == MAGIC_LOW) {
                buffer.readerIndex(buffer.readerIndex() - header.length + i);
                header = Bytes.copyOf(header, i);
                break;
            }
        }
        return super.decode(channel, buffer, readable, header);
    }
    // check length.
    if (readable < HEADER_LENGTH) {
        return DecodeResult.NEED_MORE_INPUT;
    }

    // get data length.
    int len = Bytes.bytes2int(header, 12);
    checkPayload(channel, len);

    int tt = len + HEADER_LENGTH;
    if( readable < tt ) {
        return DecodeResult.NEED_MORE_INPUT;
    }

    // limit input stream.
    ChannelBufferInputStream is = new ChannelBufferInputStream(buffer, len);

    try {
        return decodeBody(channel, is, header);
    } finally {
        if (is.available() > 0) {
            try {
                if (logger.isWarnEnabled()) {
                    logger.warn("Skip input stream " + is.available());
                }
                StreamUtils.skipUnusedStream(is);
            } catch (IOException e) {
                logger.warn(e.getMessage(), e);
            }
        }
    }
}
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
public Object decode(Channel channel, ChannelBuffer buffer) throws IOException {
    int readable = buffer.readableBytes();
    byte[] message = new byte[readable];
    buffer.readBytes(message);
    return decode(channel, buffer, readable, message);
}
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
public Object decode(Channel channel, ChannelBuffer buffer) throws IOException {
    int readable = buffer.readableBytes();
    byte[] header = new byte[Math.min(readable, HEADER_LENGTH)];
    buffer.readBytes(header);
    return decode(channel, buffer, readable, header);
}
 

import com.alibaba.dubbo.remoting.buffer.ChannelBuffer; //导入方法依赖的package包/类
@Test
public void testEncodeRequest() throws Exception {

    Request request = createRequest();

    ChannelBuffer output = ChannelBuffers.dynamicBuffer(1024);

    codec.encode( channel, output, request );

    byte[] bytes = new byte[output.readableBytes()];
    output.readBytes(bytes);

    ByteArrayInputStream bis = new ByteArrayInputStream( bytes );

    TTransport transport = new TIOStreamTransport( bis );

    TBinaryProtocol protocol = new TBinaryProtocol( transport );

    // frame
    byte[] length = new byte[4];
    transport.read( length, 0, 4 );

    if ( bis.markSupported() ) {
        bis.mark( 0 );
    }

    // magic
    Assert.assertEquals( ThriftCodec.MAGIC, protocol.readI16() );

    // message length
    int messageLength = protocol.readI32();
    Assert.assertEquals( messageLength + 4, bytes.length );

    // header length
    short headerLength = protocol.readI16();
    // version
    Assert.assertEquals( ThriftCodec.VERSION, protocol.readByte() );
    // service name
    Assert.assertEquals( Demo.Iface.class.getName(), protocol.readString() );
    // dubbo request id
    Assert.assertEquals( request.getId(), protocol.readI64() );

    // test message header length
    if ( bis.markSupported() ) {
        bis.reset();
        bis.skip( headerLength );
    }

    TMessage message = protocol.readMessageBegin();

    Demo.echoString_args args = new Demo.echoString_args();

    args.read( protocol );

    protocol.readMessageEnd();

    Assert.assertEquals( "echoString", message.name );

    Assert.assertEquals( TMessageType.CALL, message.type );

    Assert.assertEquals( "Hello, World!", args.getArg() );

}