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

Example 46 with BufferOverflowException

use of java.nio.BufferOverflowException in project ignite by apache.

the class AlignedBuffersDirectFileIO method readIntoAlignedBuffer.

/**
 * Read bytes from file using Native IO and aligned buffers.
 *
 * @param destBuf Destination aligned byte buffer.
 * @param filePos Starting position of file. Providing {@link #FILE_POS_USE_CURRENT} means it is required
 *     to read from current file position.
 * @return number of bytes read from file, or <tt>-1</tt> if tried to read past EOF for file.
 * @throws IOException if reading failed.
 */
private int readIntoAlignedBuffer(ByteBuffer destBuf, long filePos) throws IOException {
    int pos = destBuf.position();
    int limit = destBuf.limit();
    int toRead = pos <= limit ? limit - pos : 0;
    if (toRead == 0)
        return 0;
    if ((pos + toRead) > destBuf.capacity())
        throw new BufferOverflowException();
    int rd;
    Pointer ptr = bufferPtrAtPosition(destBuf, pos);
    if (filePos == FILE_POS_USE_CURRENT)
        rd = IgniteNativeIoLib.read(fdCheckOpened(), ptr, nl(toRead)).intValue();
    else
        rd = IgniteNativeIoLib.pread(fdCheckOpened(), ptr, nl(toRead), nl(filePos)).intValue();
    if (rd == 0)
        // Tried to read past EOF for file
        return -1;
    if (rd < 0)
        throw new IOException(String.format("Error during reading file [%s] from position [%s] : %s", file, filePos == FILE_POS_USE_CURRENT ? "current" : Long.toString(filePos), getLastError()));
    destBuf.position(pos + rd);
    return rd;
}

Example 47 with BufferOverflowException

use of java.nio.BufferOverflowException in project jetty.project by eclipse.

the class BufferUtilTest method testAppend.

@Test
public void testAppend() throws Exception {
    ByteBuffer to = BufferUtil.allocate(8);
    ByteBuffer from = BufferUtil.toBuffer("12345");
    BufferUtil.append(to, from.array(), 0, 3);
    assertEquals("123", BufferUtil.toString(to));
    BufferUtil.append(to, from.array(), 3, 2);
    assertEquals("12345", BufferUtil.toString(to));
    try {
        BufferUtil.append(to, from.array(), 0, 5);
        Assert.fail();
    } catch (BufferOverflowException e) {
    }
}

Example 48 with BufferOverflowException

use of java.nio.BufferOverflowException in project hbase by apache.

the class TestMultiByteBuff method testWritesAndReads.

@Test
public void testWritesAndReads() {
    // Absolute reads
    ByteBuffer bb1 = ByteBuffer.allocate(15);
    ByteBuffer bb2 = ByteBuffer.allocate(15);
    int i1 = 4;
    bb1.putInt(i1);
    long l1 = 45L, l2 = 100L, l3 = 12345L;
    bb1.putLong(l1);
    short s1 = 2;
    bb1.putShort(s1);
    byte[] b = Bytes.toBytes(l2);
    bb1.put(b, 0, 1);
    bb2.put(b, 1, 7);
    bb2.putLong(l3);
    MultiByteBuff mbb = new MultiByteBuff(bb1, bb2);
    assertEquals(l1, mbb.getLong(4));
    assertEquals(l2, mbb.getLong(14));
    assertEquals(l3, mbb.getLong(22));
    assertEquals(i1, mbb.getInt(0));
    assertEquals(s1, mbb.getShort(12));
    // Relative reads
    assertEquals(i1, mbb.getInt());
    assertEquals(l1, mbb.getLong());
    assertEquals(s1, mbb.getShort());
    assertEquals(l2, mbb.getLong());
    assertEquals(l3, mbb.getLong());
    // Absolute writes
    bb1 = ByteBuffer.allocate(15);
    bb2 = ByteBuffer.allocate(15);
    mbb = new MultiByteBuff(bb1, bb2);
    byte b1 = 5, b2 = 31;
    mbb.put(b1);
    mbb.putLong(l1);
    mbb.putInt(i1);
    mbb.putLong(l2);
    mbb.put(b2);
    mbb.position(mbb.position() + 2);
    try {
        mbb.putLong(l3);
        fail("'Should have thrown BufferOverflowException");
    } catch (BufferOverflowException e) {
    }
    mbb.position(mbb.position() - 2);
    mbb.putLong(l3);
    mbb.rewind();
    assertEquals(b1, mbb.get());
    assertEquals(l1, mbb.getLong());
    assertEquals(i1, mbb.getInt());
    assertEquals(l2, mbb.getLong());
    assertEquals(b2, mbb.get());
    assertEquals(l3, mbb.getLong());
    mbb.put(21, b1);
    mbb.position(21);
    assertEquals(b1, mbb.get());
    mbb.put(b);
    assertEquals(l2, mbb.getLong(22));
}

Example 49 with BufferOverflowException

use of java.nio.BufferOverflowException in project flink by apache.

the class MemorySegmentTestBase method testByteBufferOverflowUnderflow.

@Test
public void testByteBufferOverflowUnderflow() {
    try {
        final int bbCapacity = pageSize / 10;
        ByteBuffer bb = ByteBuffer.allocate(bbCapacity);
        MemorySegment seg = createSegment(pageSize);
        try {
            seg.get(pageSize / 5, bb, pageSize / 10 + 2);
            fail("should fail with an exception");
        } catch (BufferOverflowException ignored) {
        }
        // position / limit should not have been modified
        assertEquals(0, bb.position());
        assertEquals(bb.capacity(), bb.limit());
        try {
            seg.put(pageSize / 5, bb, pageSize / 10 + 2);
            fail("should fail with an exception");
        } catch (BufferUnderflowException ignored) {
        }
        // position / limit should not have been modified
        assertEquals(0, bb.position());
        assertEquals(bb.capacity(), bb.limit());
        int pos = bb.capacity() / 3;
        int limit = 2 * bb.capacity() / 3;
        bb.limit(limit);
        bb.position(pos);
        try {
            seg.get(20, bb, bb.capacity() / 3 + 3);
            fail("should fail with an exception");
        } catch (BufferOverflowException ignored) {
        }
        // position / limit should not have been modified
        assertEquals(pos, bb.position());
        assertEquals(limit, bb.limit());
        try {
            seg.put(20, bb, bb.capacity() / 3 + 3);
            fail("should fail with an exception");
        } catch (BufferUnderflowException ignored) {
        }
        // position / limit should not have been modified
        assertEquals(pos, bb.position());
        assertEquals(limit, bb.limit());
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

Example 50 with BufferOverflowException

use of java.nio.BufferOverflowException in project j2objc by google.

the class BufferTest method testPutByteBuffer.

// http://code.google.com/p/android/issues/detail?id=16184
public void testPutByteBuffer() throws Exception {
    ByteBuffer dst = ByteBuffer.allocate(10).asReadOnlyBuffer();
    // Can't put into a read-only buffer.
    try {
        dst.put(ByteBuffer.allocate(5));
        fail();
    } catch (ReadOnlyBufferException expected) {
    }
    // Can't put a buffer into itself.
    dst = ByteBuffer.allocate(10);
    try {
        dst.put(dst);
        fail();
    } catch (IllegalArgumentException expected) {
    }
    // Can't put the null ByteBuffer.
    try {
        dst.put((ByteBuffer) null);
        fail();
    } catch (NullPointerException expected) {
    }
    // Can't put a larger source into a smaller destination.
    try {
        dst.put(ByteBuffer.allocate(dst.capacity() + 1));
        fail();
    } catch (BufferOverflowException expected) {
    }
    assertPutByteBuffer(ByteBuffer.allocate(10), ByteBuffer.allocate(8), false);
    assertPutByteBuffer(ByteBuffer.allocate(10), ByteBuffer.allocateDirect(8), false);
    assertPutByteBuffer(ByteBuffer.allocate(10), allocateMapped(8), false);
    assertPutByteBuffer(ByteBuffer.allocate(10), ByteBuffer.allocate(8), true);
    assertPutByteBuffer(ByteBuffer.allocate(10), ByteBuffer.allocateDirect(8), true);
    assertPutByteBuffer(ByteBuffer.allocate(10), allocateMapped(8), true);
    assertPutByteBuffer(ByteBuffer.allocateDirect(10), ByteBuffer.allocate(8), false);
    assertPutByteBuffer(ByteBuffer.allocateDirect(10), ByteBuffer.allocateDirect(8), false);
    assertPutByteBuffer(ByteBuffer.allocateDirect(10), allocateMapped(8), false);
    assertPutByteBuffer(ByteBuffer.allocateDirect(10), ByteBuffer.allocate(8), true);
    assertPutByteBuffer(ByteBuffer.allocateDirect(10), ByteBuffer.allocateDirect(8), true);
    assertPutByteBuffer(ByteBuffer.allocateDirect(10), allocateMapped(8), true);
}