internal void Install([NotNull] Database db)
{
Debug.Assert(db != null);
if (Digest != null && _db == null)
{
_db = db;
}
if (_db != null)
{
if (db != _db)
{
throw new InvalidOperationException(CouchbaseLiteErrorMessage.BlobDifferentDatabase);
}
return;
}
var store = db.BlobStore;
C4BlobKey key;
if (_content != null)
{
LiteCoreBridge.Check(err =>
{
C4BlobKey tmpKey;
var s = Native.c4blob_create(store, _content, null, &tmpKey, err);
key = tmpKey;
return(s);
});
}
else
{
if (_initialContentStream == null)
{
throw new InvalidOperationException(CouchbaseLiteErrorMessage.BlobContentNull);
}
Length = 0;
var contentStream = _initialContentStream;
using (var blobOut = new BlobWriteStream(store)) {
contentStream.CopyTo(blobOut, ReadBufferSize);
blobOut.Flush();
Length = blobOut.Length > Int32.MaxValue ? 0 : (int)blobOut.Length;
key = blobOut.Key;
}
_initialContentStream.Dispose();
_initialContentStream = null;
}
Digest = Native.c4blob_keyToString(key);
_db = db;
}
private void Install([NotNull] Database db)
{
Debug.Assert(db != null);
if (_db != null)
{
if (db != _db)
{
throw new InvalidOperationException("Blob belongs to a different database");
}
return;
}
var store = db.BlobStore;
C4BlobKey key;
if (_content != null)
{
LiteCoreBridge.Check(err =>
{
C4BlobKey tmpKey;
var s = Native.c4blob_create(store, _content, null, &tmpKey, err);
key = tmpKey;
return(s);
});
}
else
{
if (_initialContentStream == null)
{
throw new InvalidOperationException("No data available to write for install");
}
Length = 0;
var contentStream = _initialContentStream;
using (var blobOut = new BlobWriteStream(store)) {
contentStream.CopyTo(blobOut, ReadBufferSize);
blobOut.Flush();
key = blobOut.Key;
}
_initialContentStream.Dispose();
_initialContentStream = null;
}
Digest = Native.c4blob_keyToString(key);
_db = db;
}
public unsafe void TestBlobStream()
{
byte[] bytes = null;
using (var stream = typeof(BlobTest).GetTypeInfo().Assembly.GetManifestResourceStream("iTunesMusicLibrary.json"))
using (var sr = new BinaryReader(stream)) {
bytes = sr.ReadBytes((int)stream.Length);
}
C4BlobKey key;
long tmp;
using (var stream = new BlobWriteStream(Db.BlobStore)) {
stream.CanSeek.Should().BeFalse();
stream.Invoking(s => tmp = s.Length).ShouldThrow <NotSupportedException>();
stream.Invoking(s => tmp = s.Position).ShouldThrow <NotSupportedException>();
stream.Invoking(s => s.Position = 10).ShouldThrow <NotSupportedException>();
stream.Invoking(s => s.Read(bytes, 0, bytes.Length)).ShouldThrow <NotSupportedException>();
stream.Invoking(s => s.SetLength(100)).ShouldThrow <NotSupportedException>();
stream.Write(bytes, 0, bytes.Length);
stream.Flush();
key = stream.Key;
var canread = stream.CanRead;
}
using (var stream = new BlobReadStream(Db.BlobStore, key)) {
stream.Invoking(s => s.SetLength(100)).ShouldThrow <NotSupportedException>();
stream.CanRead.Should().BeTrue();
stream.CanSeek.Should().BeTrue();
stream.CanWrite.Should().BeFalse();
stream.Length.Should().Be(bytes.Length);
stream.Position.Should().Be(0);
stream.Seek(2, SeekOrigin.Begin);
stream.Position.Should().Be(2);
stream.ReadByte().Should().Be(bytes[2]);
stream.Seek(1, SeekOrigin.Current);
stream.Position.Should().Be(4); // ReadByte advanced the stream
stream.ReadByte().Should().Be(bytes[4]);
stream.Position = 0;
stream.Seek(-2, SeekOrigin.End);
stream.Position.Should().Be(bytes.Length - 2); // ReadByte advanced the stream
stream.ReadByte().Should().Be(bytes[bytes.Length - 2]);
stream.Flush();
}
}
public unsafe void TestBlobStreamCopyTo()
{
byte[] bytes = null;
using (var stream = typeof(BlobTest).GetTypeInfo().Assembly.GetManifestResourceStream("iTunesMusicLibrary.json"))
using (var sr = new BinaryReader(stream)) {
bytes = sr.ReadBytes((int)stream.Length);
}
C4BlobKey key;
using (var stream = typeof(BlobTest).GetTypeInfo().Assembly
.GetManifestResourceStream("iTunesMusicLibrary.json")) {
using (var writeStream = new BlobWriteStream(Db.BlobStore)) {
stream.CopyTo(writeStream);
writeStream.Flush();
key = writeStream.Key;
}
}
using (var stream = new BlobReadStream(Db.BlobStore, key)) {
stream.Length.Should().Be(bytes.Length);
}
}
static void Main(string[] args)
{
IntPtr userData = new IntPtr(0);
string clipID;
BinaryReader myReader;
BinaryWriter myWriter;
BlobStream myStream;
// For thsi test we are using a file as the input. *Any* stream could be used.
// This would be your test PDF - in a file or memory stream.
FileStream inputStream = new FileStream("e:\\testfile", FileMode.Open);
FPLogger.ConsoleMessage("\nInput file length " + inputStream.Length);
try
{
FPLogger log = new FPLogger();
log.LogPath = "C:\\GenStreamsLog.txt";
log.Start();
// Create a test clip demonstrating how to write a blob using a stream
FPPool myPool = new FPPool("cse1.centera.lab.emc.com");
FPClip myClip = myPool.ClipCreate("GenericStreamWrite_testClip");
FPTag myTag = myClip.AddTag("testTag");
// Simple test of the BlobWriteStream - write contents of a local file
// to Centera using a StreamReader and StreamWriter
// We are using a temporary MemoryStream for our staging area
myStream = new BlobWriteStream(myTag);
myReader = new BinaryReader(inputStream);
myWriter = new BinaryWriter(myStream);
long writeTime1 = DateTime.Now.Ticks;
myWriter.Write(myReader.ReadBytes((int)inputStream.Length));
myWriter.Flush();
((BlobWriteStream)myStream).Close(); // If we don't do this it will stay open forever with keep alives!
writeTime1 = DateTime.Now.Ticks - writeTime1;
// If we assign values to existing FP objects we must explicitly close
// them first to avoid potential "Object In Use" errors on future closure
myTag.Close();
myTag = myClip.AddTag("SlicedBlob");
inputStream.Seek(0, SeekOrigin.Begin);
long writeTime = DateTime.Now.Ticks;
SlicedBlobWriter.Instance(inputStream, myTag, 8);
writeTime = DateTime.Now.Ticks - writeTime;
myTag.Close();
clipID = myClip.Write();
myClip.Close();
FPLogger.ConsoleMessage("\nGenericStreamWrite test succeeded " + clipID);
// Now we will test reading it back from the Centera {
myClip = myPool.ClipOpen(clipID, FPMisc.OPEN_ASTREE);
myTag = myClip.NextTag;
// Here we create a stream to read back the blob
long readTime1 = DateTime.Now.Ticks;
myStream = new BlobReadStream(myTag);
// This is only to test to verify when we read the content back it is the same as the
// input file i.e. we are going to store it on the file system and then use file system tools
// to compare the files
myReader = new BinaryReader(myStream);
myWriter = new BinaryWriter(new FileStream("c:\\testfile2.out", FileMode.Create));
((BlobReadStream)myStream).Join();
myWriter.Write(myReader.ReadBytes((int)myTag.BlobSize));
myWriter.Flush();
myStream.Close();
readTime1 = DateTime.Now.Ticks - readTime1;
myTag.Close();
// This shows how to read content back using multiple threads
myTag = myClip.NextTag;
long readTime = DateTime.Now.Ticks;
SlicedBlobReader.Instance(new FileStream("c:\\testfile2.out.sliced", FileMode.Create), myTag, 8);
readTime = DateTime.Now.Ticks - readTime;
myTag.Close();
myClip.Close();
myPool.Close();
FPLogger.ConsoleMessage("\nSerial tests - Write time: " + TimeSpan.FromTicks(writeTime1) + " Read time " + TimeSpan.FromTicks(readTime1));
FPLogger.ConsoleMessage("\nMulti threaded tests - Write time: " + TimeSpan.FromTicks(writeTime) + " Read time " + TimeSpan.FromTicks(readTime));
}
catch (FPLibraryException e)
{
ErrorInfo err = e.errorInfo;
FPLogger.ConsoleMessage("\nException thrown in FP Library: Error " + err.error + " " + err.message);
}
}