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Minecraft.World/ConsoleSaveFileOutputStream.cpp

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+#include "stdafx.h"
+#include "File.h"
+#include "ConsoleSaveFileOutputStream.h"
+
+#include "ConsoleSaveFile.h"
+
+//Creates a file output stream to write to the file represented by the specified File object. A new FileDescriptor object is
+//created to represent this file connection.
+//First, if there is a security manager, its checkWrite method is called with the path represented by the file argument as its argument.
+//
+//If the file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened
+//for any other reason then a FileNotFoundException is thrown.
+//
+//Parameters:
+//file - the file to be opened for writing.
+ConsoleSaveFileOutputStream::ConsoleSaveFileOutputStream(ConsoleSaveFile *saveFile, const ConsoleSavePath &file)
+{
+	m_saveFile = saveFile;
+
+	m_file = m_saveFile->createFile(file);
+
+	m_saveFile->setFilePointer( m_file, 0, NULL, FILE_BEGIN );
+}
+
+ConsoleSaveFileOutputStream::ConsoleSaveFileOutputStream(ConsoleSaveFile *saveFile, FileEntry *file)
+{
+	m_saveFile = saveFile;
+
+	m_file = file;
+
+	m_saveFile->setFilePointer( m_file, 0, NULL, FILE_BEGIN );
+}
+
+//Writes the specified byte to this file output stream. Implements the write method of OutputStream.
+//Parameters:
+//b - the byte to be written.
+void ConsoleSaveFileOutputStream::write(unsigned int b)
+{	
+	DWORD numberOfBytesWritten;
+
+	byte value = (byte) b;
+
+	BOOL result = m_saveFile->writeFile(
+		m_file,
+		&value, // data buffer
+		1, // number of bytes to write
+		&numberOfBytesWritten // number of bytes written
+		);
+
+	if( result == 0 )
+	{
+		// TODO 4J Stu - Some kind of error handling
+	}
+	else if( numberOfBytesWritten == 0 )
+	{
+		// File pointer is past the end of the file
+	}
+}
+
+//Writes b.length bytes from the specified byte array to this file output stream.
+//Parameters:
+//b - the data.
+void ConsoleSaveFileOutputStream::write(byteArray b)
+{
+	DWORD numberOfBytesWritten;
+
+	BOOL result = m_saveFile->writeFile(
+		m_file,
+		&b.data, // data buffer
+		b.length, // number of bytes to write
+		&numberOfBytesWritten // number of bytes written
+		);
+
+	if( result == 0 )
+	{
+		// TODO 4J Stu - Some kind of error handling
+	}
+	else if( numberOfBytesWritten == 0 || numberOfBytesWritten != b.length  )
+	{
+		// File pointer is past the end of the file
+	}
+}
+
+//Writes len bytes from the specified byte array starting at offset off to this file output stream.
+//Parameters:
+//b - the data.
+//off - the start offset in the data.
+//len - the number of bytes to write.
+void ConsoleSaveFileOutputStream::write(byteArray b, unsigned int offset, unsigned int length)
+{
+	// 4J Stu - We don't want to write any more than the array buffer holds
+	assert( length <= ( b.length - offset ) );
+
+	DWORD numberOfBytesWritten;
+
+	BOOL result = m_saveFile->writeFile(
+		m_file,
+		&b[offset], // data buffer
+		length, // number of bytes to write
+		&numberOfBytesWritten // number of bytes written
+		);
+
+	if( result == 0 )
+	{
+		// TODO 4J Stu - Some kind of error handling
+	}
+	else if( numberOfBytesWritten == 0 || numberOfBytesWritten != length  )
+	{
+		// File pointer is past the end of the file
+	}
+}
+//
+//Closes this file output stream and releases any system resources associated with this stream.
+//This file output stream may no longer be used for writing bytes.
+//If this stream has an associated channel then the channel is closed as well.
+void ConsoleSaveFileOutputStream::close()
+{
+	if( m_saveFile != NULL )
+	{
+		BOOL result = m_saveFile->closeHandle( m_file );
+
+		if( result == 0 )
+		{
+			// TODO 4J Stu - Some kind of error handling
+		}
+
+		// Stop the dtor from trying to close it again
+		m_saveFile = NULL;
+	}
+}