Examples with BufferUnderflowException java.nio.BufferUnderflowException used on opensource projects

Example 11 with BufferUnderflowException

use of java.nio.BufferUnderflowException in project rest.li by linkedin.

the class BufferChain method get.

/**
   * Return a {@link ByteBuffer} filled with the specified number of bytes
   * from {@link BufferChain}.
   * <p>
   * The range of the array to be filled is specified by an offset and length.
   * The current position is advanced by the number of bytes filled even if
   * {@link BufferUnderflowException} is thrown.
   * <p>
   * @param length provides the number of bytes to be filled.
   * @return {@code this}.
   * @throws BufferUnderflowException if the buffer chain is exhausted before filling
   *                                  the specified number of bytes.
   */
public ByteBuffer get(int length) {
    ByteBuffer buffer;
    if (advanceBufferIfCurrentBufferHasNoRemaining() == false) {
        throw new BufferUnderflowException();
    }
    int remaining = _currentBuffer.remaining();
    if (remaining < length) {
        buffer = ByteBuffer.allocate(length);
        byte[] dst = buffer.array();
        int offset = buffer.arrayOffset();
        int more = length;
        while (more > 0 && advanceBufferIfCurrentBufferHasNoRemaining()) {
            _currentBuffer = _bufferList.get(_currentIndex);
            remaining = _currentBuffer.remaining();
            if (remaining > more) {
                remaining = more;
            }
            _currentBuffer.get(dst, offset, remaining);
            offset += remaining;
            more -= remaining;
        }
        if (more > 0) {
            throw new BufferUnderflowException();
        }
    } else {
        buffer = _currentBuffer.slice();
        buffer.limit(length);
        _currentBuffer.position(_currentBuffer.position() + length);
    }
    buffer.flip();
    return buffer;
}

Example 12 with BufferUnderflowException

use of java.nio.BufferUnderflowException in project neo4j by neo4j.

the class EphemeralFileSystemAbstractionTest method verifyFileIsEitherEmptyOrContainsLongIntegerValueOne.

private void verifyFileIsEitherEmptyOrContainsLongIntegerValueOne(StoreChannel channel) {
    try {
        long claimedSize = channel.size();
        ByteBuffer buffer = allocateDirect(8);
        channel.read(buffer, 0);
        buffer.flip();
        if (claimedSize == 8) {
            assertEquals(1, buffer.getLong());
        } else {
            try {
                buffer.getLong();
                fail("Should have thrown an exception");
            } catch (BufferUnderflowException e) {
            // expected
            }
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Example 13 with BufferUnderflowException

use of java.nio.BufferUnderflowException in project graphdb by neo4j-attic.

the class ZooClient method getJmxConnectionData.

public void getJmxConnectionData(ConnectionInformation connection) {
    String path = rootPath + "/" + HA_SERVERS_CHILD + "/" + machineId + "-jmx";
    byte[] data;
    try {
        data = zooKeeper.getData(path, false, null);
    } catch (KeeperException e) {
        return;
    } catch (InterruptedException e) {
        Thread.interrupted();
        return;
    }
    if (data == null || data.length == 0)
        return;
    ByteBuffer buffer = ByteBuffer.wrap(data);
    char[] url, instanceId;
    try {
        // read URL
        url = new char[buffer.getShort()];
        buffer.asCharBuffer().get(url);
        buffer.position(buffer.position() + url.length * 2);
        // read instanceId
        instanceId = new char[buffer.getShort()];
        buffer.asCharBuffer().get(instanceId);
    } catch (BufferUnderflowException e) {
        return;
    }
    connection.setJMXConnectionData(new String(url), new String(instanceId));
}

Example 14 with BufferUnderflowException

use of java.nio.BufferUnderflowException in project robovm by robovm.

the class OldAndroidNIOTest method byteBufferTest.

private void byteBufferTest(ByteBuffer b) {
    checkBuffer(b);
    // Duplicate buffers revert to big-endian.
    b.order(ByteOrder.LITTLE_ENDIAN);
    ByteBuffer dupe = b.duplicate();
    assertEquals(ByteOrder.BIG_ENDIAN, dupe.order());
    b.order(ByteOrder.BIG_ENDIAN);
    // Bounds checks
    try {
        b.put(-1, (byte) 0);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        b.put(b.limit(), (byte) 0);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    // IndexOutOfBoundsException: offset < 0
    try {
        byte[] data = new byte[8];
        b.position(0);
        b.put(data, -1, 2);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    // IndexOutOfBoundsException: length > array.length - offset
    try {
        byte[] data = new byte[8];
        b.position(0);
        b.put(data, 1, 8);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    // BufferOverflowException: length > remaining()
    try {
        byte[] data = new byte[8];
        b.position(b.limit() - 2);
        b.put(data, 0, 3);
        fail("expected exception not thrown");
    } catch (BufferOverflowException e) {
    // expected
    }
    // Fill buffer with bytes A0 A1 A2 A3 ...
    b.position(0);
    for (int i = 0; i < b.capacity(); i++) {
        b.put((byte) (0xA0 + i));
    }
    try {
        b.put((byte) 0xFF);
        fail("expected exception not thrown");
    } catch (BufferOverflowException e) {
    // expected
    }
    b.position(0);
    assertEquals((byte) 0xA7, b.get(7));
    try {
        b.get(12);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        b.get(-10);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    b.position(0);
    b.order(ByteOrder.LITTLE_ENDIAN);
    assertEquals((byte) 0xA0, b.get());
    assertEquals((byte) 0xA1, b.get());
    assertEquals((byte) 0xA2, b.get());
    assertEquals((byte) 0xA3, b.get());
    assertEquals((byte) 0xA4, b.get());
    assertEquals((byte) 0xA5, b.get());
    assertEquals((byte) 0xA6, b.get());
    assertEquals((byte) 0xA7, b.get());
    assertEquals((byte) 0xA8, b.get());
    assertEquals((byte) 0xA9, b.get());
    assertEquals((byte) 0xAA, b.get());
    assertEquals((byte) 0xAB, b.get());
    try {
        b.get();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    b.position(0);
    b.order(ByteOrder.BIG_ENDIAN);
    assertEquals((byte) 0xA0, b.get());
    assertEquals((byte) 0xA1, b.get());
    assertEquals((byte) 0xA2, b.get());
    assertEquals((byte) 0xA3, b.get());
    assertEquals((byte) 0xA4, b.get());
    assertEquals((byte) 0xA5, b.get());
    assertEquals((byte) 0xA6, b.get());
    assertEquals((byte) 0xA7, b.get());
    assertEquals((byte) 0xA8, b.get());
    assertEquals((byte) 0xA9, b.get());
    assertEquals((byte) 0xAA, b.get());
    assertEquals((byte) 0xAB, b.get());
    try {
        b.get();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    b.position(6);
    b.limit(10);
    assertEquals((byte) 0xA6, b.get());
    // Check sliced buffer
    b.position(6);
    ByteBuffer bb = b.slice();
    checkBuffer(bb);
    assertEquals(0, bb.position());
    assertEquals(4, bb.limit());
    assertEquals(4, bb.capacity());
    assertEquals((byte) 0xA6, bb.get());
    assertEquals((byte) 0xA7, bb.get());
    assertEquals((byte) 0xA8, bb.get());
    assertEquals((byte) 0xA9, bb.get());
    try {
        bb.get();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    // Reset position and limit
    b.position(0);
    b.limit(b.capacity());
    // Check 'getShort'
    b.order(ByteOrder.LITTLE_ENDIAN);
    b.position(0);
    assertEquals((short) 0xA1A0, b.getShort());
    assertEquals((short) 0xA3A2, b.getShort());
    assertEquals((short) 0xA5A4, b.getShort());
    assertEquals((short) 0xA7A6, b.getShort());
    assertEquals((short) 0xA9A8, b.getShort());
    assertEquals((short) 0xABAA, b.getShort());
    try {
        bb.getShort();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    b.order(ByteOrder.BIG_ENDIAN);
    b.position(0);
    assertEquals((short) 0xA0A1, b.getShort());
    assertEquals((short) 0xA2A3, b.getShort());
    assertEquals((short) 0xA4A5, b.getShort());
    assertEquals((short) 0xA6A7, b.getShort());
    assertEquals((short) 0xA8A9, b.getShort());
    assertEquals((short) 0xAAAB, b.getShort());
    try {
        bb.getShort();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    // Check 'getInt'
    b.order(ByteOrder.LITTLE_ENDIAN);
    b.position(0);
    assertEquals(0xA3A2A1A0, b.getInt());
    assertEquals(0xA7A6A5A4, b.getInt());
    assertEquals(0xABAAA9A8, b.getInt());
    try {
        bb.getInt();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    b.order(ByteOrder.BIG_ENDIAN);
    b.position(0);
    assertEquals(0xA0A1A2A3, b.getInt());
    assertEquals(0xA4A5A6A7, b.getInt());
    assertEquals(0xA8A9AAAB, b.getInt());
    try {
        bb.getInt();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    // Check 'getFloat'
    b.order(ByteOrder.LITTLE_ENDIAN);
    b.position(0);
    assertEquals(0xA3A2A1A0, Float.floatToRawIntBits(b.getFloat()));
    assertEquals(0xA7A6A5A4, Float.floatToRawIntBits(b.getFloat()));
    assertEquals(0xABAAA9A8, Float.floatToRawIntBits(b.getFloat()));
    try {
        b.getFloat();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    b.order(ByteOrder.BIG_ENDIAN);
    b.position(0);
    assertEquals(0xA0A1A2A3, Float.floatToRawIntBits(b.getFloat()));
    assertEquals(0xA4A5A6A7, Float.floatToRawIntBits(b.getFloat()));
    assertEquals(0xA8A9AAAB, Float.floatToRawIntBits(b.getFloat()));
    try {
        b.getFloat();
        fail("expected exception not thrown");
    } catch (BufferUnderflowException e) {
    // expected
    }
    // Check 'getDouble(int position)'
    b.order(ByteOrder.LITTLE_ENDIAN);
    assertEquals(0xA7A6A5A4A3A2A1A0L, Double.doubleToRawLongBits(b.getDouble(0)));
    assertEquals(0xA8A7A6A5A4A3A2A1L, Double.doubleToRawLongBits(b.getDouble(1)));
    try {
        b.getDouble(-1);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        b.getDouble(5);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    b.order(ByteOrder.BIG_ENDIAN);
    assertEquals(0xA0A1A2A3A4A5A6A7L, Double.doubleToRawLongBits(b.getDouble(0)));
    assertEquals(0xA1A2A3A4A5A6A7A8L, Double.doubleToRawLongBits(b.getDouble(1)));
    try {
        b.getDouble(-1);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        b.getDouble(5);
        fail("expected exception not thrown");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    // Slice and check 'getInt'
    b.position(1);
    b.limit(5);
    b.order(ByteOrder.LITTLE_ENDIAN);
    bb = b.slice();
    assertEquals(4, bb.capacity());
    assertEquals(ByteOrder.BIG_ENDIAN, bb.order());
    assertEquals(0xA1A2A3A4, bb.getInt(0));
    bb.order(ByteOrder.LITTLE_ENDIAN);
    assertEquals(0xA4A3A2A1, bb.getInt(0));
    bb.order(ByteOrder.LITTLE_ENDIAN);
    ShortBuffer sb = bb.asShortBuffer();
    checkBuffer(sb);
    assertEquals(2, sb.capacity());
    assertEquals((short) 0xA2A1, sb.get());
    assertEquals((short) 0xA4A3, sb.get());
    bb.order(ByteOrder.BIG_ENDIAN);
    sb = bb.asShortBuffer();
    checkBuffer(sb);
    assertEquals(2, sb.capacity());
    assertEquals((short) 0xA1A2, sb.get());
    assertEquals((short) 0xA3A4, sb.get());
    bb.order(ByteOrder.LITTLE_ENDIAN);
    IntBuffer ib = bb.asIntBuffer();
    checkBuffer(ib);
    assertEquals(1, ib.capacity());
    assertEquals(0xA4A3A2A1, ib.get());
    bb.order(ByteOrder.BIG_ENDIAN);
    ib = bb.asIntBuffer();
    checkBuffer(ib);
    assertEquals(1, ib.capacity());
    assertEquals(0xA1A2A3A4, ib.get());
    bb.order(ByteOrder.LITTLE_ENDIAN);
    FloatBuffer fb = bb.asFloatBuffer();
    checkBuffer(fb);
    assertEquals(1, fb.capacity());
    assertEquals(0xA4A3A2A1, Float.floatToRawIntBits(fb.get()));
    bb.order(ByteOrder.BIG_ENDIAN);
    fb = bb.asFloatBuffer();
    checkBuffer(fb);
    assertEquals(1, fb.capacity());
    assertEquals(0xA1A2A3A4, Float.floatToRawIntBits(fb.get()));
}

Example 15 with BufferUnderflowException

use of java.nio.BufferUnderflowException in project robovm by robovm.

the class BufferUnderflowExceptionTest method test_Constructor.

/**
     *@tests {@link java.nio.BufferUnderflowException#BufferUnderflowException()}
     */
public void test_Constructor() {
    BufferUnderflowException exception = new BufferUnderflowException();
    assertNull(exception.getMessage());
    assertNull(exception.getLocalizedMessage());
    assertNull(exception.getCause());
}