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Minecraft.World/BufferedOutputStream.cpp

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+#include "stdafx.h"
+
+#include "BufferedOutputStream.h"
+
+//Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size.
+//Parameters:
+//out - the underlying output stream.
+//size - the buffer size.
+BufferedOutputStream::BufferedOutputStream(OutputStream *out, int size)
+{
+	stream = out;
+	buf = byteArray( size );
+	count = 0;
+}
+
+BufferedOutputStream::~BufferedOutputStream()
+{
+	delete buf.data;
+}
+
+//Flushes this buffered output stream. This forces any buffered output bytes to be written out to the underlying output stream.
+void BufferedOutputStream::flush()
+{
+	stream->write( buf, 0, count );
+
+	count = 0;
+}
+
+//Closes this output stream and releases any system resources associated with the stream.
+//The close method of FilterOutputStream calls its flush method, and then calls the close method of its underlying output stream.
+void BufferedOutputStream::close()
+{
+	flush();
+	stream->close();
+}
+
+//Writes len bytes from the specified byte array starting at offset off to this buffered output stream.
+//Ordinarily this method stores bytes from the given array into this stream's buffer, flushing the buffer to the
+//underlying output stream as needed. If the requested length is at least as large as this stream's buffer, however,
+//then this method will flush the buffer and write the bytes directly to the underlying output stream.
+//Thus redundant BufferedOutputStreams will not copy data unnecessarily.
+//
+//Overrides:
+//write in class FilterOutputStream
+//Parameters:
+//b - the data.
+//off - the start offset in the data.
+//len - the number of bytes to write.
+void BufferedOutputStream::write(byteArray b, unsigned int offset, unsigned int length)
+{
+	// Over the length of what we can store in our buffer - just flush the buffer and output directly
+	if( length >= buf.length )
+	{
+		flush();
+		stream->write(b, offset, length);
+	}
+	else
+	{
+		for(unsigned int i = 0; i < length; i++ )
+		{
+			write( b[offset+i] );
+		}
+	}
+}
+
+//Writes b.length bytes to this output stream.
+//The write method of FilterOutputStream calls its write method of three arguments with the arguments b, 0, and b.length.
+//
+//Note that this method does not call the one-argument write method of its underlying stream with the single argument b.
+void BufferedOutputStream::write(byteArray b)
+{
+	write( b, 0, b.length );
+}
+
+//Writes the specified byte to this buffered output stream.
+//Overrides:
+//write in class FilterOutputStream
+//Parameters:
+//b - the byte to be written.
+void BufferedOutputStream::write(unsigned int b)
+{
+	buf[count++] = (byte) b;
+	if( count == buf.length )
+	{
+		flush();
+	}
+}