Example usage for io.netty.buffer Unpooled buffer

Introduction

In this page you can find the example usage for io.netty.buffer Unpooled buffer.

Prototype

public static ByteBuf buffer()

Source Link

Document

Creates a new big-endian Java heap buffer with reasonably small initial capacity, which expands its capacity boundlessly on demand.

Usage

From source file:com.flowpowered.network.util.ByteBufUtilsTest.java

License:MIT License

@Test
public void testUtf8() throws Exception {
    final ByteBuf test = Unpooled.buffer();
    ByteBufUtils.writeUTF8(test, "Hello");
    final String utf8String = ByteBufUtils.readUTF8(test);
    if (!"Hello".equals(utf8String)) {
        fail("The buffer had hello wrote to it but received " + utf8String + " instead!");
    }//from   www  .jav  a2s . c  o m
    boolean exceptionThrown = false;
    try {
        ByteBufUtils.writeUTF8(test, new String(new byte[Short.MAX_VALUE + 1]));
    } catch (Exception ignore) {
        exceptionThrown = true;
    }
    if (!exceptionThrown) {
        fail("Writing more than Short.MAX_VALUE as a UTF8 String to the ByteBuf should have thrown an exception but it did not!");
    }
}

From source file:com.flowpowered.networking.fake.ChannelHandlerContextFaker.java

License:MIT License

public static FakeChannelHandlerContext setup() {
    if (context == null) {
        alloc();/*from  w  ww  .j av  a2 s.co  m*/
        context = Mockito.mock(FakeChannelHandlerContext.class, Mockito.CALLS_REAL_METHODS);
        channel = Mockito.mock(Channel.class);
        config = Mockito.mock(ChannelConfig.class);
        Mockito.doReturn(channel).when(context).channel();
        Mockito.when(channel.config()).thenReturn(config);
        Mockito.when(config.getAllocator()).thenReturn(alloc);
        Answer<ByteBuf> answer = new Answer<ByteBuf>() {
            @Override
            public ByteBuf answer(InvocationOnMock invocation) throws Throwable {
                ByteBuf buffer = Unpooled.buffer();
                buffer.retain();
                return buffer;
            }
        };
        Mockito.when(alloc.buffer()).thenAnswer(answer);
        Mockito.when(alloc.buffer(Mockito.anyInt())).thenAnswer(answer);
    }
    return context;
}

From source file:com.flysoloing.learning.network.netty.http2.Http2ExampleUtil.java

License:Apache License

/**
 * Reads an InputStream into a byte array.
 * @param input the InputStream./* www.j  a  va  2 s. com*/
 * @return a byte array representation of the InputStream.
 * @throws IOException if an I/O exception of some sort happens while reading the InputStream.
 */
public static ByteBuf toByteBuf(InputStream input) throws IOException {
    ByteBuf buf = Unpooled.buffer();
    int n = 0;
    do {
        n = buf.writeBytes(input, BLOCK_SIZE);
    } while (n > 0);
    return buf;
}

From source file:com.forgetutorials.lib.network.SubPacketTileEntityChild.java

License:LGPL

public ByteBuf populate() {

    ByteBuf buf = Unpooled.buffer();
    try {/*from  w  w  w .j av a  2 s.  c  o m*/
        buf.writeByte(this.packetType.ordinal());
        writeData(buf);
    } catch (IOException e) {
        e.printStackTrace(System.err);
    }

    return buf;
}

From source file:com.friz.audio.network.AudioSessionContext.java

License:Open Source License

/**
 * Processes the file requests./*from ww w . j  av  a2 s  .c  o m*/
 * @throws IOException The exception thrown if an i/o error occurs.
 */
public void processFileQueue() {
    FileRequestEvent request;
    synchronized (fileQueue) {
        request = fileQueue.pop();
        if (fileQueue.isEmpty()) {
            idle = true;
        } else {
            service.addAudioContext(this);
            idle = false;
        }
    }
    if (request != null) {
        int type = request.getType();
        int file = request.getFile();
        int crc = request.getCrc();
        int version = request.getVersion();
        HttpVersion http = request.getHttp();

        ByteBuf buf = Unpooled.buffer();
        if (type == 255 && file == 255) {
            buf = Unpooled.wrappedBuffer(server.getCache().getChecksum());
        } else {
            if (server.getCache().getReferenceTable(type).getEntry(file).getCrc() != crc
                    || server.getCache().getReferenceTable(type).getEntry(file).getVersion() != version) {
                writeResponse(http, buf);
                return;
            }

            try {
                buf = Unpooled.wrappedBuffer(server.getCache().getStore().read(type, file));
                if (type != 255)
                    buf = buf.slice(0, buf.readableBytes() - 2);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        writeResponse(http, buf);
    }
}

From source file:com.github.nettybook.ch3.EchoClientHandler.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext ctx) {
    String sendMessage = "Hello netty";

    ByteBuf messageBuffer = Unpooled.buffer();
    messageBuffer.writeBytes(sendMessage.getBytes());

    StringBuilder builder = new StringBuilder();
    builder.append(" ? [");
    builder.append(sendMessage);//from w  ww .j a va 2  s  . c om
    builder.append("]");

    System.out.println(builder.toString());
    ctx.writeAndFlush(messageBuffer);
}

From source file:com.github.nettybook.ch4.EchoClientHandler2.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext ctx) {
    String sendMessage = "Hello netty";

    ByteBuf messageBuffer = Unpooled.buffer();
    messageBuffer.writeBytes(sendMessage.getBytes());

    StringBuilder builder = new StringBuilder();
    builder.append(" ? [");
    builder.append(sendMessage);/*from   w  w w . j  a v a2 s.c om*/
    builder.append("]");

    System.out.println(builder.toString());
    ctx.write(messageBuffer);

    ctx.flush();
}

From source file:com.github.spapageo.jannel.transcode.TranscoderHelperTest.java

License:Open Source License

@Test
public void testDecodeHeartBeatDecodesCorrectly() throws Exception {
    ByteBuf encodedMessage = Unpooled.buffer();
    encodedMessage.writeInt(124);//from w  ww.  ja  v  a  2s  .co  m

    HeartBeat heartBeat = transcoderHelper.decodeHeartBeat(encodedMessage);
    assertEquals("HeartBeat load is incorrect", 124, heartBeat.getLoad());
    encodedMessage.release();
}

From source file:com.github.spapageo.jannel.transcode.TranscoderHelperTest.java

License:Open Source License

@Test
public void testDecodeAdminDecodesCorrectly() throws Exception {
    ByteBuf encodedMessage = Unpooled.buffer();
    encodedMessage.writeInt(1);/* w ww.j a  v  a  2s .  c  o m*/
    ChannelBufferUtils.writeStringToOctetString("", encodedMessage, Charsets.UTF_8);

    Admin admin = transcoderHelper.decodeAdmin(encodedMessage);
    Assert.assertEquals("Type of admin command is incorrect", AdminCommand.SUSPEND, admin.getAdminCommand());
    assertEquals("Box name is incorrect", "", admin.getBoxId());
    encodedMessage.release();
}

From source file:com.github.spapageo.jannel.transcode.TranscoderHelperTest.java

License:Open Source License

@Test(expected = UnknownAdminCommandException.class)
public void testDecodeAdminThrowsWhenAdminCommandIsUnkwown() throws Exception {
    ByteBuf encodedMessage = Unpooled.buffer();
    encodedMessage.writeInt(5);//w w  w.j  av  a 2  s. c o  m
    ChannelBufferUtils.writeStringToOctetString("", encodedMessage, Charsets.UTF_8);

    try {
        transcoderHelper.decodeAdmin(encodedMessage);
    } finally {
        encodedMessage.release();
    }
}