Initial revision

From-SVN: r26263

libjava/java/io/PrintStream.java

@@ -0,0 +1,236 @@
+// PrintStream.java - Print string representations
+
+/* 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:  Not finished.
+ */
+
+public class PrintStream extends FilterOutputStream
+{
+  public boolean checkError ()
+  {
+    return error;
+  }
+
+  public void close ()
+  {
+    try
+      {
+	out.close();
+      }
+    catch (IOException e)
+      {
+	setError ();
+      }
+  }
+
+  public void flush ()
+  {
+    try
+      {
+	out.flush();
+      }
+    catch (IOException e)
+      {
+	setError ();
+      }
+  }
+
+  private final void print (String str, boolean check_term)
+  {
+    try
+      {
+	write(str.getBytes());
+	if (check_term
+	    && auto_flush
+	    && str.indexOf(line_separator) != -1)
+	  flush ();
+      }
+    catch (IOException e)
+      {
+	setError ();
+      }
+  }
+
+  public void print (boolean bool)
+  {
+    print (String.valueOf(bool), false);
+  }
+
+  public void print (int inum)
+  {
+    print (String.valueOf(inum), false);
+  }
+
+  public void print (long lnum)
+  {
+    print (String.valueOf(lnum), false);
+  }
+
+  public void print (float fnum)
+  {
+    print (String.valueOf(fnum), false);
+  }
+
+  public void print (double dnum)
+  {
+    print (String.valueOf(dnum), false);
+  }
+
+  public void print (Object obj)
+  {
+    print (String.valueOf(obj), false);
+  }
+
+  public void print (String str)
+  {
+    print (str, true);
+  }
+
+  public void print (char ch)
+  {
+    print (String.valueOf(ch), true);
+  }
+
+  public void print (char[] charArray)
+  {
+    print (String.valueOf(charArray), true);
+  }
+
+  public void println ()
+  {
+    print (line_separator, false);
+    if (auto_flush)
+      flush ();
+  }
+
+  public void println (boolean bool)
+  {
+    print (String.valueOf(bool), false);
+    println ();
+  }
+
+  public void println (int inum)
+  {
+    print (String.valueOf(inum), false);
+    println ();
+  }
+
+  public void println (long lnum)
+  {
+    print (String.valueOf(lnum), false);
+    println ();
+  }
+
+  public void println (float fnum)
+  {
+    print (String.valueOf(fnum), false);
+    println ();
+  }
+
+  public void println (double dnum)
+  {
+    print (String.valueOf(dnum), false);
+    println ();
+  }
+
+  public void println (Object obj)
+  {
+    print (String.valueOf(obj), false);
+    println ();
+  }
+
+  public void println (String str)
+  {
+    print (str, false);
+    println ();
+  }
+
+  public void println (char ch)
+  {
+    print (String.valueOf(ch), false);
+    println ();
+  }
+
+  public void println (char[] charArray)
+  {
+    print (String.valueOf(charArray), false);
+    println ();
+  }
+
+  public PrintStream (OutputStream out)
+  {
+    super (out);
+    error = false;
+    auto_flush = false;
+  }
+
+  public PrintStream (OutputStream out, boolean af)
+  {
+    super (out);
+    error = false;
+    auto_flush = af;
+  }
+
+  protected void setError ()
+  {
+    error = true;
+  }
+
+  public void write (int oneByte)
+  {
+    try
+      {
+	out.write(oneByte);
+	// JCL says to do this.  I think it is wrong.  FIXME.
+	if (auto_flush && oneByte == '\n')
+	  out.flush();
+      }
+    catch (IOException e)
+      {
+	setError ();
+      }
+  }
+
+  public void write (byte[] buffer, int offset, int count)
+  {
+    try
+      {
+	out.write(buffer, offset, count);
+	// FIXME: JCL says to flush.  But elsewhere the JCL says to
+	// use write to write the stringified form of an object, and
+	// only to flush if that string contains the line separator.
+	// How to resolve the contradiction?
+	if (auto_flush)
+	  out.flush();
+      }
+    catch (IOException e)
+      {
+	setError ();
+      }
+  }
+
+  // True if error occurred.
+  private boolean error;
+  // True if auto-flush.
+  private boolean auto_flush;
+
+  // Line separator string.
+  private static final String line_separator
+    = System.getProperty("line.separator");
+}