public void Test_TRANSACTED_ADD_STREAM_TO_EXISTING_FILE()
{
String srcFilename = "report.xls";
String dstFilename = "reportOverwrite.xls";
File.Copy(srcFilename, dstFilename, true);
CompoundFile cf = new CompoundFile(dstFilename, CFSUpdateMode.Update, CFSConfiguration.Default);
byte[] buffer = Helpers.GetBuffer(5000);
CFStream addedStream = cf.RootStorage.AddStream("MyNewStream");
addedStream.SetData(buffer);
cf.Commit();
cf.Close();
if (File.Exists("reportOverwrite.xls"))
{
File.Delete("reportOverwrite.xls");
}
}
private void SingleWriteReadMatchingSTREAMED(int size)
{
MemoryStream ms = new MemoryStream(size);
CompoundFile cf = new CompoundFile();
CFStorage st = cf.RootStorage.AddStorage("MyStorage");
CFStream sm = st.AddStream("MyStream");
byte[] b = Helpers.GetBuffer(size);
sm.SetData(b);
cf.Save(ms);
cf.Close();
CompoundFile cf2 = new CompoundFile(ms);
CFStorage st2 = cf2.RootStorage.GetStorage("MyStorage");
CFStream sm2 = st2.GetStream("MyStream");
Assert.IsNotNull(sm2);
Assert.IsTrue(sm2.Size == size);
Assert.IsTrue(Helpers.CompareBuffer(sm2.GetData(), b));
cf2.Close();
}
public void Test_WRITE_MINISTREAM_READ_REWRITE_STREAM()
{
const int BIGGER_SIZE = 350;
//const int SMALLER_SIZE = 290;
const int MEGA_SIZE = 18000000;
byte[] ba1 = Helpers.GetBuffer(BIGGER_SIZE, 1);
byte[] ba2 = Helpers.GetBuffer(BIGGER_SIZE, 2);
byte[] ba3 = Helpers.GetBuffer(BIGGER_SIZE, 3);
byte[] ba4 = Helpers.GetBuffer(BIGGER_SIZE, 4);
byte[] ba5 = Helpers.GetBuffer(BIGGER_SIZE, 5);
//WRITE 5 (mini)streams in a compound file --
CompoundFile cfa = new CompoundFile();
CFStream myStream = cfa.RootStorage.AddStream("MyFirstStream");
Assert.IsNotNull(myStream);
myStream.SetData(ba1);
Assert.IsTrue(myStream.Size == BIGGER_SIZE);
CFStream myStream2 = cfa.RootStorage.AddStream("MySecondStream");
Assert.IsNotNull(myStream2);
myStream2.SetData(ba2);
Assert.IsTrue(myStream2.Size == BIGGER_SIZE);
CFStream myStream3 = cfa.RootStorage.AddStream("MyThirdStream");
Assert.IsNotNull(myStream3);
myStream3.SetData(ba3);
Assert.IsTrue(myStream3.Size == BIGGER_SIZE);
CFStream myStream4 = cfa.RootStorage.AddStream("MyFourthStream");
Assert.IsNotNull(myStream4);
myStream4.SetData(ba4);
Assert.IsTrue(myStream4.Size == BIGGER_SIZE);
CFStream myStream5 = cfa.RootStorage.AddStream("MyFifthStream");
Assert.IsNotNull(myStream5);
myStream5.SetData(ba5);
Assert.IsTrue(myStream5.Size == BIGGER_SIZE);
cfa.Save("WRITE_MINISTREAM_READ_REWRITE_STREAM.cfs");
cfa.Close();
// Now get the second stream and rewrite it smaller
byte[] bb = Helpers.GetBuffer(MEGA_SIZE);
CompoundFile cfb = new CompoundFile("WRITE_MINISTREAM_READ_REWRITE_STREAM.cfs");
CFStream myStreamB = cfb.RootStorage.GetStream("MySecondStream");
Assert.IsNotNull(myStreamB);
myStreamB.SetData(bb);
Assert.IsTrue(myStreamB.Size == MEGA_SIZE);
byte[] bufferB = myStreamB.GetData();
cfb.Save("WRITE_MINISTREAM_READ_REWRITE_STREAM_2ND.cfs");
cfb.Close();
CompoundFile cfc = new CompoundFile("WRITE_MINISTREAM_READ_REWRITE_STREAM_2ND.cfs");
CFStream myStreamC = cfc.RootStorage.GetStream("MySecondStream");
Assert.IsTrue(myStreamC.Size == MEGA_SIZE, "DATA SIZE FAILED");
byte[] bufferC = myStreamC.GetData();
Assert.IsTrue(Helpers.CompareBuffer(bufferB, bufferC), "DATA INTEGRITY FAILED");
cfc.Close();
if (File.Exists("WRITE_MINISTREAM_READ_REWRITE_STREAM.cfs"))
{
File.Delete("WRITE_MINISTREAM_READ_REWRITE_STREAM.cfs");
}
if (File.Exists("WRITE_MINISTREAM_READ_REWRITE_STREAM_2ND.cfs"))
{
File.Delete("WRITE_MINISTREAM_READ_REWRITE_STREAM_2ND.cfs");
}
}
