Example usage for io.netty.buffer ByteBuf unwrap

Introduction

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

Prototype

public abstract ByteBuf unwrap();

Source Link

Document

Return the underlying buffer instance if this buffer is a wrapper of another buffer.

Usage

From source file:com.yahoo.pulsar.client.impl.ProducerImpl.java

License:Apache License

/**
 * Casts input cmd to {@link DoubleByteBuf}
 * //from w w w . ja v a  2s.com
 * Incase if leak-detection level is enabled: pulsar instruments {@link DoubleByteBuf} into LeakAwareByteBuf (type of {@link io.netty.buffer.WrappedByteBuf})
 * So, this method casts input cmd to {@link DoubleByteBuf} else retrieves it from LeakAwareByteBuf.
 * 
 * @param cmd
 * @return DoubleByteBuf or null in case failed to cast input {@link ByteBuf}
 */
private DoubleByteBuf getDoubleByteBuf(ByteBuf cmd) {
    DoubleByteBuf msg = null;
    if (cmd instanceof DoubleByteBuf) {
        msg = (DoubleByteBuf) cmd;
    } else {
        try {
            msg = (DoubleByteBuf) cmd.unwrap();
        } catch (Exception e) {
            log.error("[{}] Failed while casting {} into DoubleByteBuf", producerName, cmd.getClass().getName(),
                    e);
        }
    }
    return msg;
}

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From source file:io.vertx.core.datagram.DatagramTest.java

License:Open Source License

@Test
public void testSendReceive() throws Exception {
    waitFor(2);/*from   w  w  w .j  a  v a 2s  .  c o m*/
    Buffer expected = TestUtils.randomBuffer(128);
    CountDownLatch latch = new CountDownLatch(1);
    Context serverContext = vertx.getOrCreateContext();
    serverContext.runOnContext(v -> {
        peer2 = vertx.createDatagramSocket(new DatagramSocketOptions());
        peer2.exceptionHandler(t -> fail(t.getMessage()));
        peer2.handler(packet -> {
            assertSame(serverContext, Vertx.currentContext());
            assertFalse(Thread.holdsLock(peer2));
            Buffer data = packet.data();
            ByteBuf buff = data.getByteBuf();
            while (buff != buff.unwrap() && buff.unwrap() != null) {
                buff = buff.unwrap();
            }
            assertTrue("Was expecting an unpooled buffer instead of " + buff.getClass().getSimpleName(),
                    buff.getClass().getSimpleName().contains("Unpooled"));
            assertEquals(expected, data);
            complete();
        });
        peer2.listen(1234, "127.0.0.1", onSuccess(so -> latch.countDown()));
    });
    awaitLatch(latch);
    Context clientContext = vertx.getOrCreateContext();
    clientContext.runOnContext(v -> {
        peer1 = vertx.createDatagramSocket(new DatagramSocketOptions());
        peer1.send(expected, 1234, "127.0.0.1", onSuccess(s -> {
            assertSame(clientContext, Vertx.currentContext());
            assertFalse(Thread.holdsLock(peer1));
            complete();
        }));
    });
    await();
}

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From source file:io.vertx.test.core.DatagramTest.java

License:Open Source License

@Test
public void testSendReceive() {
    peer1 = vertx.createDatagramSocket(new DatagramSocketOptions());
    peer2 = vertx.createDatagramSocket(new DatagramSocketOptions());
    peer2.exceptionHandler(t -> fail(t.getMessage()));
    peer2.listen(1234, "127.0.0.1", ar -> {
        assertTrue(ar.succeeded());//from   w w w .j  av a  2  s. c  o m
        Buffer buffer = TestUtils.randomBuffer(128);
        peer2.handler(packet -> {
            Buffer data = packet.data();
            ByteBuf buff = data.getByteBuf();
            while (buff != buff.unwrap() && buff.unwrap() != null) {
                buff = buff.unwrap();
            }
            assertTrue("Was expecting an unpooled buffer instead of " + buff.getClass().getSimpleName(),
                    buff.getClass().getSimpleName().contains("Unpooled"));
            assertEquals(buffer, data);
            testComplete();
        });
        peer1.send(buffer, 1234, "127.0.0.1", ar2 -> assertTrue(ar2.succeeded()));
    });
    await();
}

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From source file:org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper.java

License:Apache License

public static ByteBuf unwrap(ByteBuf buffer) {
    ByteBuf parent;/*from   w w  w.j a  v a 2s.  c o  m*/
    while ((parent = buffer.unwrap()) != null && parent != buffer) // this last part is just in case the semantic
    { // ever changes where unwrap is returning itself
        buffer = parent;
    }

    return buffer;
}

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