Initial revision

From-SVN: r26263

libjava/java/io/BufferedOutputStream.java

@@ -0,0 +1,76 @@
+// BufferedOutputStream.java - A buffered stream
+
+/* Copyright (C) 1998, 1999  Cygnus Solutions
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+package java.io;
+
+/**
+ * @author Tom Tromey <tromey@cygnus.com>
+ * @date September 24, 1998 
+ */
+
+/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
+ * "The Java Language Specification", ISBN 0-201-63451-1
+ * Status:  Complete to version 1.1.
+ */
+
+public class BufferedOutputStream extends FilterOutputStream
+{
+  public BufferedOutputStream (OutputStream ox)
+  {
+    this (ox, 512);
+  }
+
+  public BufferedOutputStream (OutputStream ox, int size)
+  {
+    super (ox);
+    buf = new byte[size];
+  }
+
+  public synchronized void flush () throws IOException
+  {
+    out.write(buf, 0, count);
+    count = 0;
+    out.flush();
+  }
+
+  public synchronized void write (int b) throws IOException
+  {
+    if (count < buf.length)
+      buf[count++] = (byte) b;
+    else
+      {
+	out.write(buf, 0, count);
+	count = 0;
+	out.write(b);
+      }
+  }
+
+  public synchronized void write (byte[] b, int off, int len)
+    throws IOException, NullPointerException, IndexOutOfBoundsException
+  {
+    // If LEN < 0 then the downstream write will fail for us.
+    if (len >= 0 && count + len < buf.length)
+      {
+	System.arraycopy(b, off, buf, count, len);
+	count += len;
+      }
+    else
+      {
+	out.write(buf, 0, count);
+	count = 0;
+	out.write(b, off, len);
+      }
+  }
+
+  // The buffer.
+  protected byte[] buf;
+  // Number of valid bytes in BUF.
+  protected int count;
+}