Example usage for io.netty.buffer ByteBuf slice

List of usage examples for io.netty.buffer ByteBuf slice

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Introduction

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

Prototype

public abstract ByteBuf slice();

Source Link

Document

Returns a slice of this buffer's readable bytes.

Usage

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.EROLabelSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean loose)
        throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() < HEADER_LENGTH) {
        throw new RSVPParsingException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + HEADER_LENGTH + ".");
    }/*from   ww w.j av a2 s. co  m*/
    final BitArray reserved = BitArray.valueOf(buffer, FLAGS_SIZE);
    final short cType = buffer.readUnsignedByte();

    final LabelType labelType = this.registry.parseLabel(cType, buffer.slice());
    if (labelType == null) {
        throw new RSVPParsingException("Unknown C-TYPE for ero label subobject. Passed: " + cType);
    }
    final LabelBuilder builder = new LabelBuilder();
    builder.setUniDirectional(reserved.get(U_FLAG_OFFSET));
    builder.setLabelType(labelType);
    return new SubobjectContainerBuilder().setLoose(loose)
            .setSubobjectType(new LabelCaseBuilder().setLabel(builder.build()).build()).build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.rro.RROLabelSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer) throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() < HEADER_LENGTH) {
        throw new RSVPParsingException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + HEADER_LENGTH + ".");
    }//from   w  w  w  .  j a va 2s .c  om
    final BitArray reserved = BitArray.valueOf(buffer, FLAGS_SIZE);

    final short cType = buffer.readUnsignedByte();

    final LabelType labelType = this.registry.parseLabel(cType, buffer.slice());
    if (labelType == null) {
        throw new RSVPParsingException("Unknown C-TYPE for ero label subobject. Passed: " + cType);
    }
    final LabelBuilder builder = new LabelBuilder();
    builder.setUniDirectional(reserved.get(U_FLAG_OFFSET));
    builder.setGlobal(reserved.get(G_FLAG_OFFSET));
    builder.setLabelType(labelType);
    return new SubobjectContainerBuilder()
            .setSubobjectType(new LabelCaseBuilder().setLabel(builder.build()).build()).build();
}

From source file:ratpack.session.internal.LocalMemorySessionStore.java

License:Apache License

@Override
public Promise<ByteBuf> load(AsciiString sessionId) {
    return Promise.sync(() -> {
        maybeCleanup();//from   w  w w .  j av  a2  s .  c  o  m
        ByteBuf value = cache.getIfPresent(sessionId);
        if (value != null) {
            return Unpooled.unreleasableBuffer(value.slice());
        } else {
            return Unpooled.EMPTY_BUFFER;
        }
    });
}

From source file:ru.jts_dev.authserver.packets.LoginClientPacketHandler.java

License:Open Source License

public final IncomingMessageWrapper handle(final ByteBuf buf,
        @Header(CONNECTION_ID) final String connectionId) {
    if (buf.readableBytes() == 0)
        throw new RuntimeException("At least 1 readable byte excepted in buffer");

    final int opcode = buf.readByte();
    final IncomingMessageWrapper msg;
    switch (opcode) {
    case 0x00:/*w  w w . j a v  a2  s .c  om*/
        msg = context.getBean(RequestAuthLogin.class);
        break;
    case 0x02:
        msg = context.getBean(RequestServerLogin.class);
        break;
    case 0x05:
        msg = context.getBean(RequestServerList.class);
        break;
    case 0x07:
        msg = context.getBean(AuthGameGuard.class);
        break;
    default:
        throw new RuntimeException("Invalid packet opcode: " + Integer.toHexString(opcode));
    }

    final ByteBuf data = buf.slice();

    Class<? extends IncomingMessageWrapper> packetClass = msg.getClass();
    log.trace("received packet: {}, length: {}", packetClass.getSimpleName(), data.readableBytes());

    final MessageHeaders headers = msg.getHeaders();
    headers.put(CONNECTION_ID, connectionId);
    msg.setPayload(data);

    return msg;
}

From source file:ru.jts_dev.gameserver.packets.GameClientPacketHandler.java

License:Open Source License

/**
 * Handle incoming packet by first bytes (opcode)
 *
 * @param buf          - packet data/*ww  w. j a  va  2 s. c o m*/
 * @param connectionId - client connectionId from Spring Integration
 * @return - handled packet
 */
public IncomingMessageWrapper handle(ByteBuf buf, @Header(CONNECTION_ID) String connectionId) {
    if (buf.readableBytes() == 0)
        throw new RuntimeException("At least 1 readable byte excepted in buffer");

    int opcode = buf.readUnsignedByte();

    if (!packets.containsKey(opcode))
        throw new RuntimeException("Invalid first packet opcode: " + String.format("0x%02X", (byte) opcode));

    IncomingMessageWrapper msg;

    Object node = packets.get(opcode);
    if (node instanceof String) {
        msg = context.getBean((String) node, IncomingMessageWrapper.class);
    } else { // (node instanceof Map)
        opcode = buf.readUnsignedShort();

        if (!((Map) node).containsKey(opcode))
            throw new RuntimeException(
                    "Invalid second packet opcode: " + String.format("0x%02X", (byte) opcode));

        node = ((Map) node).get(opcode);
        msg = context.getBean((String) node, IncomingMessageWrapper.class);
    }

    ByteBuf data = buf.slice();

    log.debug("received packet: {}, length: {}", msg.getClass().getSimpleName(), data.readableBytes());

    msg.getHeaders().put(CONNECTION_ID, connectionId);
    msg.setPayload(data);

    return msg;
}