private static void relGet(ByteBuffer b, int start)
{
int n = b.Remaining;
byte v;
for (int i = start; i < n; i++)
ck(b, (long)b.Get(), (long)((byte)Ic(i)));
b.Rewind();
}
private static void absGet(ByteBuffer b)
{
int n = b.Capacity;
byte v;
for (int i = 0; i < n; i++)
ck(b, (long)b.Get(), (long)((byte)Ic(i)));
b.Rewind();
}
protected override void ParseBody(ByteBuffer buf)
{
// 判断搜索是否已经结束
if (!buf.HasRemaining() || buf.Get() == 0x2D && buf.Get() == 0x31)
{
Finished = true;
return;
}
buf.Rewind();
// 只要还有数据就继续读取下一个friend结构
Users = new List<UserInfo>();
while (buf.HasRemaining())
{
UserInfo ui = new UserInfo();
ui.Read(buf);
// 添加到list
Users.Add(ui);
}
}
/**
* Reads GIF image from byte array
*
* @param data containing GIF file.
* @return read status code (0 = no errors)
*/
public int read(byte[] data)
{
init();
if (data != null)
{
//Initiliaze the raw data buffer
rawData = ByteBuffer.Wrap(data);
rawData.Rewind();
rawData.Order(ByteOrder.LittleEndian);
readHeader();
if (!err())
{
readContents();
if (frameCount < 0)
{
status = STATUS_FORMAT_ERROR;
}
}
}
else {
status = STATUS_OPEN_ERROR;
}
return status;
}
public static void test(int level, ByteBuffer b, bool direct)
{
Show(level, b);
if (direct != b.IsDirect)
fail("Wrong direction", b);
// Gets and puts
relPut(b);
relGet(b);
absGet(b);
bulkGet(b);
absPut(b);
relGet(b);
absGet(b);
bulkGet(b);
bulkPutArray(b);
relGet(b);
bulkPutBuffer(b);
relGet(b);
// Compact
relPut(b);
b.Position = (13);
b.Compact();
b.Flip();
relGet(b, 13);
// Exceptions
relPut(b);
b.Limit = (b.Capacity / 2);
b.Position = (b.Limit);
tryCatch(b, typeof(BufferUnderflowException), () =>
{
b.Get();
});
tryCatch(b, typeof(BufferOverflowException), () =>
{
b.Put((byte)42);
});
// The index must be non-negative and lesss than the buffer's limit.
tryCatch(b, typeof(IndexOutOfRangeException), () =>
{
b.Get(b.Limit);
});
tryCatch(b, typeof(IndexOutOfRangeException), () =>
{
b.Get(-1);
});
tryCatch(b, typeof(IndexOutOfRangeException), () =>
{
b.Put(b.Limit, (byte)42);
});
tryCatch(b, typeof(InvalidMarkException), () =>
{
b.Position = (0);
b.Mark();
b.Compact();
b.Reset();
});
// Values
b.Clear();
b.Put((byte)0);
b.Put(unchecked((byte)-1));
b.Put((byte)1);
b.Put(unchecked((byte)sbyte.MaxValue));
b.Put(unchecked((byte)sbyte.MinValue));
byte v;
b.Flip();
ck(b, b.Get(), 0);
ck(b, b.Get(), unchecked((byte)-1));
ck(b, b.Get(), 1);
ck(b, b.Get(), unchecked((byte)sbyte.MaxValue));
ck(b, b.Get(), unchecked((byte)sbyte.MinValue));
// Comparison
b.Rewind();
ByteBuffer b2 = Lucene.Net.Support.ByteBuffer.Allocate(b.Capacity);
b2.Put(b);
b2.Flip();
b.Position = (2);
b2.Position = (2);
if (!b.Equals(b2))
{
for (int i = 2; i < b.Limit; i++)
{
byte x = b.Get(i);
byte y = b2.Get(i);
if (x != y)
output.WriteLine("[" + i + "] " + x + " != " + y);
}
fail("Identical buffers not equal", b, b2);
}
if (b.CompareTo(b2) != 0)
fail("Comparison to identical buffer != 0", b, b2);
b.Limit = (b.Limit + 1);
b.Position = (b.Limit - 1);
b.Put((byte)99);
b.Rewind();
b2.Rewind();
if (b.Equals(b2))
fail("Non-identical buffers equal", b, b2);
if (b.CompareTo(b2) <= 0)
fail("Comparison to shorter buffer <= 0", b, b2);
b.Limit = (b.Limit - 1);
b.Put(2, (byte)42);
if (b.equals(b2))
fail("Non-identical buffers equal", b, b2);
if (b.CompareTo(b2) <= 0)
fail("Comparison to lesser buffer <= 0", b, b2);
// Check equals and compareTo with interesting values
foreach (byte x in VALUES)
{
ByteBuffer xb = Lucene.Net.Support.ByteBuffer.Wrap(new byte[] { x });
if (xb.CompareTo(xb) != 0)
{
fail("compareTo not reflexive", xb, xb, x, x);
}
if (!xb.Equals(xb))
{
fail("equals not reflexive", xb, xb, x, x);
}
foreach (byte y in VALUES)
{
ByteBuffer yb = Lucene.Net.Support.ByteBuffer.Wrap(new byte[] { y });
if (xb.CompareTo(yb) != -yb.CompareTo(xb))
{
fail("compareTo not anti-symmetric",
xb, yb, x, y);
}
if ((xb.CompareTo(yb) == 0) != xb.Equals(yb))
{
fail("compareTo inconsistent with equals",
xb, yb, x, y);
}
// from Byte.compare(x, y)
//return x - y;
if (xb.CompareTo(yb) != (x - y) /* Byte.Compare(x, y)*/)
{
fail("Incorrect results for ByteBuffer.compareTo",
xb, yb, x, y);
}
if (xb.equals(yb) != ((x == y) || ((x != x) && (y != y))))
{
fail("Incorrect results for ByteBuffer.equals",
xb, yb, x, y);
}
}
}
// Sub, dup
relPut(b);
relGet(b.Duplicate());
b.Position = (13);
relGet(b.Duplicate(), 13);
relGet(b.Duplicate().Slice(), 13);
relGet(b.Slice(), 13);
relGet(b.Slice().Duplicate(), 13);
// Slice
b.Position = (5);
ByteBuffer sb = b.Slice();
checkSlice(b, sb);
b.Position = (0);
ByteBuffer sb2 = sb.Slice();
checkSlice(sb, sb2);
if (!sb.Equals(sb2))
fail("Sliced slices do not match", sb, sb2);
if ((sb.HasArray) && (sb.ArrayOffset != sb2.ArrayOffset))
fail("Array offsets do not match: "
+ sb.ArrayOffset + " != " + sb2.ArrayOffset, sb, sb2);
// Views
b.Clear();
b.Order = (ByteOrder.BIG_ENDIAN);
testViews(level + 1, b, direct);
for (int i = 1; i <= 9; i++)
{
b.Position = (i);
Show(level + 1, b);
testViews(level + 2, b, direct);
}
b.Position=(0);
b.Order=(ByteOrder.LITTLE_ENDIAN);
testViews(level + 1, b, direct);
// Heterogeneous accessors
b.Order = (ByteOrder.BIG_ENDIAN);
for (int i = 0; i <= 9; i++)
{
b.Position = (i);
testHet(level + 1, b);
}
b.Order = (ByteOrder.LITTLE_ENDIAN);
b.Position = (3);
testHet(level + 1, b);
// Read-only views
b.Rewind();
ByteBuffer rb = b.AsReadOnlyBuffer();
if (!b.equals(rb))
fail("Buffer not equal to read-only view", b, rb);
Show(level + 1, rb);
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
relPut(rb);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
absPut(rb);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
bulkPutArray(rb);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
bulkPutBuffer(rb);
});
// put(ByteBuffer) should not change source position
ByteBuffer src = ByteBuffer.Allocate(1);
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.Put(src);
});
ck(src, src.Position, 0);
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.Compact();
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutChar((char)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutChar(0, (char)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutShort((short)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutShort(0, (short)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutInt(1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutInt(0, 1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutLong((long)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutLong(0, (long)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutFloat((float)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutFloat(0, (float)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutDouble((double)1);
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
rb.PutDouble(0, (double)1);
});
if (rb.GetType().Name.StartsWith("java.nio.Heap"))
{
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
var x = rb.Array;
});
tryCatch(b, typeof(ReadOnlyBufferException), () =>
{
var x = rb.ArrayOffset;
});
if (rb.HasArray)
fail("Read-only heap buffer's backing array is accessible",
rb);
}
// Bulk puts from read-only buffers
b.Clear();
rb.Rewind();
b.Put(rb);
// LUCENENET: AllocateDirect not implemented
// For byte buffers, test both the direct and non-direct cases
//ByteBuffer ob
// = (b.IsDirect
// ? ByteBuffer.Allocate(rb.Capacity)
// : ByteBuffer.AllocateDirect(rb.Capacity));
ByteBuffer ob = ByteBuffer.Allocate(rb.Capacity);
rb.Rewind();
ob.Put(rb);
relPut(b); // Required by testViews
}
