public void LobGlobalTest()
{
DBLob lob = null;
DBLob lob2 = null;
DBLob lob3 = null;
bool flag = false;
ObjectId oid1 = ObjectId.Empty;
ObjectId oid2 = ObjectId.Empty;
ObjectId oid3 = ObjectId.Empty;
ObjectId oid4 = ObjectId.Empty;
long size1 = 0;
long time1 = 0;
int bufSize = 1000;
int readNum = 0;
int retNum = 0;
int offset = 0;
int i = 0;
byte[] readBuf = null;
byte[] buf = new byte[bufSize];
for (i = 0; i < bufSize; i++)
{
buf[i] = 65;
}
DBCursor cursor = null;
BsonDocument record = null;
long lobSize = 0;
/// case 1: create a new lob
// CreateLob
lob = cl.CreateLob();
Assert.IsNotNull(lob);
// IsClosed
flag = true;
flag = lob.IsClosed();
Assert.IsFalse(flag);
// GetID
oid1 = lob.GetID();
Assert.IsTrue(ObjectId.Empty != oid1);
// Write
lob.Write(buf);
// Close
lob.Close();
// IsClosed
flag = false;
flag = lob.IsClosed();
Assert.IsTrue(flag);
// case 2: open an exsiting lob
lob2 = cl.OpenLob(oid1);
Assert.IsNotNull(lob2);
// IsClosed
flag = true;
flag = lob2.IsClosed();
Assert.IsFalse(flag);
// GetID
oid2 = lob2.GetID();
Assert.IsTrue(ObjectId.Empty != oid2);
Assert.IsTrue(oid1 == oid2);
// GetSize
size1 = lob2.GetSize();
Assert.IsTrue(bufSize == size1);
// GetCreateTime
time1 = lob2.GetCreateTime();
Assert.IsTrue(time1 > 0);
// Read
readNum = bufSize / 4;
readBuf = new Byte[readNum];
retNum = lob2.Read(readBuf);
Assert.IsTrue(readNum == retNum);
// Seek
offset = bufSize / 2;
lob2.Seek(offset, DBLob.SDB_LOB_SEEK_CUR);
// Read
retNum = 0;
retNum = lob2.Read(readBuf);
Assert.IsTrue(readNum == retNum);
// Close
lob2.Close();
// IsClosed
flag = false;
flag = lob2.IsClosed();
Assert.IsTrue(flag);
/// case 3: create a lob with specified oid
oid3 = ObjectId.GenerateNewId();
lob3 = cl.CreateLob(oid3);
Assert.IsNotNull(lob3);
// GetID
oid4 = lob3.GetID();
Assert.IsTrue(ObjectId.Empty != oid4);
Assert.IsTrue(oid3 == oid4);
// Write
lob3.Write(buf);
// Close
lob3.Close();
// IsClosed
flag = false;
flag = lob3.IsClosed();
Assert.IsTrue(flag);
/// case 4: test api in cl
// ListLobs
cursor = cl.ListLobs();
Assert.IsNotNull(cursor);
i = 0;
while (null != (record = cursor.Next()))
{
i++;
if (record.Contains("Size") && record["Size"].IsInt64)
{
lobSize = record["Size"].AsInt64;
}
else
{
Assert.Fail();
}
}
Assert.IsTrue(2 == i);
// RemoveLobs
cl.RemoveLob(oid3);
// ListLobs
cursor = cl.ListLobs();
Assert.IsNotNull(cursor);
i = 0;
while (null != (record = cursor.Next()))
{
i++;
if (record.Contains("Size") && record["Size"].IsInt64)
{
lobSize = record["Size"].AsInt64;
}
else
{
Assert.Fail();
}
}
Assert.IsTrue(1 == i);
}
public void LobReadWriteRandomNumber()
{
// gen data
Random random = new Random();
int size = random.Next(20 * 1024 * 1024);
string content = Constants.GenerateRandomNumber(size);
byte[] content_bytes = System.Text.Encoding.Default.GetBytes(content);
int end = random.Next(content_bytes.Length);
int beg = random.Next(end);
int len = end - beg;
byte[] output_bytes = new byte[content_bytes.Length];
output_bytes.Initialize();
DBLob lob = null;
DBLob lob2 = null;
// write to lob
try
{
lob = cl.CreateLob();
lob.Write(content_bytes, beg, len);
}
finally
{
if (lob != null)
{
lob.Close();
}
}
// read from lob
ObjectId id = lob.GetID();
try
{
lob2 = cl.OpenLob(id);
lob2.Read(output_bytes, beg, len);
}
finally
{
if (lob2 != null)
{
lob2.Close();
}
}
// check
for (int i = 0; i < beg; i++)
{
Assert.AreEqual(0, output_bytes[i]);
}
for (int i = beg; i < end; i++)
{
try
{
Assert.AreEqual(content_bytes[i], output_bytes[i],
string.Format("beg: {0}, end: {1}, len: {2}, i: {3}", beg, end, len, i));
}
catch (Exception e)
{
Console.WriteLine("source: ");
for (int j = i; j < i + 8; j++)
{
Console.WriteLine(content_bytes[j]);
}
Console.WriteLine("target: ");
for (int j = i; j < i + 8; j++)
{
Console.WriteLine(output_bytes[j]);
}
throw e;
}
}
for (int i = end; i < output_bytes.Length; i++)
{
Assert.AreEqual(0, output_bytes[i]);
}
}
public void LobReadTest()
{
DBLob lob = null;
DBLob lob2 = null;
bool flag = false;
ObjectId oid1 = ObjectId.Empty;
int bufSize = 1024 * 1024 * 100;
int readNum = 0;
int retNum = 0;
int i = 0;
byte[] readBuf = null;
byte[] buf = new byte[bufSize];
for (i = 0; i < bufSize; i++)
{
buf[i] = 65;
}
long lobSize = 0;
// CreateLob
lob = cl.CreateLob();
Assert.IsNotNull(lob);
// GetID
oid1 = lob.GetID();
Assert.IsTrue(ObjectId.Empty != oid1);
// Write
lob.Write(buf);
lobSize = lob.GetSize();
Assert.AreEqual(bufSize, lobSize);
// Close
lob.Close();
// Open lob
lob2 = cl.OpenLob(oid1);
lobSize = lob2.GetSize();
Assert.AreEqual(bufSize, lobSize);
// Read
int skipNum = 1024 * 1024 * 50;
lob2.Seek(skipNum, DBLob.SDB_LOB_SEEK_SET); // after this, the offset is 1024*1024*50
readNum = 1024 * 1024 * 10;
readBuf = new byte[readNum];
retNum = lob2.Read(readBuf); // after this, the offset is 1024*1024*60
Assert.IsTrue(readNum == retNum);
// check
for (i = 0; i < readBuf.Length; i++)
{
Assert.IsTrue(readBuf[i] == 65);
}
skipNum = 1024 * 1024 * 10;
lob2.Seek(skipNum, DBLob.SDB_LOB_SEEK_CUR); // after this, the offset is 1024*1024*70
readBuf = new byte[readNum];
retNum = lob2.Read(readBuf);
Assert.IsTrue(readNum == retNum); // after this, the offset is 1024*1024*80
// check
for (i = 0; i < readBuf.Length; i++)
{
Assert.IsTrue(readBuf[i] == 65);
}
skipNum = 1024 * 1024 * 20;
lob2.Seek(skipNum, DBLob.SDB_LOB_SEEK_END);
readNum = 1024 * 1024 * 30; // will only read 1024*1024*20
readBuf = new byte[readNum];
retNum = lob2.Read(readBuf); // after this, the offset is 1024*1024*100
Assert.AreEqual(readNum, (retNum + 1024 * 1024 * 10));
//Assert.AreEqual 失败。应为: <31457280>，实际为: <10746880>。
// Close
lob2.Close();
// IsClosed
flag = false;
flag = lob.IsClosed();
Assert.IsTrue(flag);
}
public void LobReadWriteSequenceNumber()
{
// gen data
Random random = new Random();
int size = random.Next(10 * 1024 * 1024);
byte[] content_bytes = new byte[size * 4];
int[] content = GenerateSequenceNumber(size);
for (int i = 0; i < size; i++)
{
byte[] tmp_buf = System.BitConverter.GetBytes(content[i]);
Array.Copy(tmp_buf, 0, content_bytes, i * 4, tmp_buf.Length);
}
//Console.WriteLine("content_bytes is: {0}", BitConverter.ToString(content_bytes));
int end = content_bytes.Length;
int beg = 0;
int len = end - beg;
byte[] output_bytes = new byte[content_bytes.Length];
output_bytes.Initialize();
DBLob lob = null;
DBLob lob2 = null;
// write to lob
try
{
lob = cl.CreateLob();
lob.Write(content_bytes, beg, len);
}
finally
{
if (lob != null)
{
lob.Close();
}
}
// read from lob
ObjectId id = lob.GetID();
try
{
lob2 = cl.OpenLob(id);
lob2.Read(output_bytes, beg, len);
}
finally
{
if (lob2 != null)
{
lob2.Close();
}
}
// check
for (int i = 0; i < beg; i++)
{
Assert.AreEqual(0, output_bytes[i]);
}
for (int i = beg; i < end; i++)
{
try
{
Assert.AreEqual(content_bytes[i], output_bytes[i],
string.Format("beg: {0}, end: {1}, len: {2}, i: {3}", beg, end, len, i));
}
catch (Exception e)
{
Console.WriteLine("source: ");
for (int j = i; j < i + 8; j++)
{
Console.WriteLine(content_bytes[j]);
}
Console.WriteLine("target: ");
for (int j = i; j < i + 8; j++)
{
Console.WriteLine(output_bytes[j]);
}
throw e;
}
}
for (int i = end; i < output_bytes.Length; i++)
{
Assert.AreEqual(0, output_bytes[i]);
}
}
//[Ignore]
public void LobWriteTest()
{
DBLob lob = null;
DBLob lob2 = null;
bool flag = false;
ObjectId oid1 = ObjectId.Empty;
ObjectId oid2 = ObjectId.Empty;
ObjectId oid3 = ObjectId.Empty;
ObjectId oid4 = ObjectId.Empty;
long size1 = 0;
int bufSize = 1000;
int i = 0;
byte[] buf = new byte[bufSize];
for (i = 0; i < bufSize; i++)
{
buf[i] = 65;
}
/// case 1: write double times
// CreateLob
lob = cl.CreateLob();
Assert.IsNotNull(lob);
// GetID
oid1 = lob.GetID();
Assert.IsTrue(ObjectId.Empty != oid1);
// Write, first time
lob.Write(buf);
size1 = lob.GetSize();
Assert.AreEqual(bufSize, size1);
// Write the second time
lob.Write(buf);
size1 = lob.GetSize();
Assert.AreEqual(bufSize * 2, size1);
// Close
lob.Close();
// IsClosed
flag = false;
flag = lob.IsClosed();
Assert.IsTrue(flag);
/// case 2: write large date
bufSize = 1024 * 1024 * 100;
byte[] buf2 = new byte[bufSize];
for (i = 0; i < bufSize; i++)
{
buf2[i] = 65;
}
// CreateLob
lob2 = cl.CreateLob();
Assert.IsNotNull(lob2);
// Write, first time
lob2.Write(buf2);
size1 = lob2.GetSize();
Assert.AreEqual(bufSize, size1);
// Close
lob2.Close();
// IsClosed
flag = false;
flag = lob2.IsClosed();
Assert.IsTrue(flag);
// GetSize
size1 = lob2.GetSize();
Assert.AreEqual(bufSize, size1);
}